Hyundai Santa Fe (TM): Automatic Transaxle Control System - Automatic Transaxle System (SBC)Hyundai Santa Fe (TM): Automatic Transaxle Control System

Description and operation

Description
Automatic transaxle system relies on various measurement data to determine the current control status and extrapolate the necessary compensation values.extrapolate the necessary compensation values.
These values are used to control the actuators and achieve the desired control output.
If a problem with the drivetrain, including the transaxle, has been identified, perform self-diagnosis and basic transaxle inspection (oil and fluid inspection) and then check the control system's components using the diagnosis tool.
▶ Control System Composition

Repair procedures

Adjustment
TCM Learning
1.
Overview and purpose of learning
1)
The purpose is to ensure the initial operation safety by correcting the oil pressure differences between transmissions.
2)
For relearning of TCM, process relearning by deleting existing contents using diagnostic tool when there is shift shock at gears 1-2-3-4-5-6.
2.
In the following case, TCM learning is required.
1)
Automatic transaxle assembly replacement
2)
TCM replacement
3)
TCM upgrade
3.
TCM learning procedure
1)
Condition : ATF temperature 35 - 95°C (95 - 203°F)
2)
Stop learning
- Repeat the shift pattern shown below five times or more with the brake stepped on.

3)
Driving relearn
- Maintain the throttle open to a constant level with the gear in D position and increment from 1st to 5th gear within 1500 ~ 2500 RPM of engine and decelerate slowly.
With (ON, throttle opening: 0%), decrement from 6th to 1st gear.
- Upshift throttle opening : 15 - 35% (a proper value for making upshift within 1500 - 2500RPM of engine)

Transaxle Control Module (TCM). Description and operation

Description
Monitoring the vehicle's operating conditions to determine the optimal gear setting.
Performing a gear change if the current gear setting differs from the identified optimal gear setting.
Determining the need for damper clutch (D/C) activation and engages the clutch accordingly.
Calculating the optimal line pressure level by constantly monitoring the torque level and adjusts the pressure accordingly.
Diagnosing the automatic transaxle for faults and failures.

Transaxle Control Module (TCM). Schematic diagrams

TCM Connector and Terminal Function

TCM Terminal Function
Connector [A]
Pin No
Description
Connected to
1
Power ground
Chassis Ground
2
-
-
3
-
-
4
-
-
5
-
-
6
Fuel Sender Signal
Fuel Sender
7
-
-
8
-
-
9
-
-
10
-
-
11
-
-
12
-
-
13
-
-
14
-
-
15
Stop Lamp Signal
Stop Lamp
16
Brake Test Switch
Brake Switch
17


18
-

19
-

20
Output Speed (Supply)
ATM Solenoid Valve (Otput Speed)
21
Input Speed (Supply)
ATM Solenoid Valve (Input Speed)
22
-
-
23
-
-
24
-
-
25
-
-
26
-
-
27
[A/T] SOL. (PWR1)
ATM Solenoid Valve
28
-
-
29
-
-
30
-
-
31
-
-
-
-
32
-
-
33
-
-
34
-
-
35
-
-
36
-
-
37
-
-
38
APT (Signal)
A/C Pressure Transducer (APT)
39
-
-
40
-
-
41
-
-
42
-
-
43
[A/T] Output Speed (Signal)
Engine Control Relay
44
[A/T] Input Speed (Signal)
ATM Solenoid Valve
45
-
-
46
-
-
47
-
-
48
[A/T] SOL. (VFS_26B)
ATM Solenoid Valve
49
[A/T] SOL. (VFS_OD)
ATM Solenoid Valve
50
[A/T] SOL. (VFS_PWR2)
ATM Solenoid Valve
51
-
-
52
-
-
53
-
-
54
-
-
55
-
-
56
APS (APS. 2 Ground)
Accelerator Position Sensor (APS)
57
APS (APS. 1 Ground)
Accelerator Position Sensor (APS)
58
-
-
59
-
-
60
-
-
61
APT (Ground)
A/C Pressure Transducer (APT)
62
-
-
63
-
-
64
-
-
65
-
-
66
-
-
67
-
-
68
-
-
69
[A/T] SOL. (OTS (-))
ATM Solenoid Valve
70
[A/T] SOL. (OTS (+))
ATM Solenoid Valve
71
-
-
72
[A/T] SOL. (VFS_LINE)
ATM Solenoid Valve
73
[A/T] SOL. (VFS_UD)
ATM Solenoid Valve
74
Start Relay Control
B/Alarm Relay
75
-
-
76
Vehicle Speed Signal
IBU & ESP Control Module
77
-
-
78
-
-
79
APS (APS. 2 Ground)
Accelerator Position Sensor (APS)
80
APS (APS. 1 Ground)
Accelerator Position Sensor (APS)
81
-
-
82
O2 Sensor (Up) (V_N)
Oxygen Sensor (Up)
83
O2 Sensor (Down) (Ground)
Oxygen Sensor (Down)
84
O2 Sensor (Up) (V_RC)
Oxygen Sensor (Up)
85
-
-
86
-
-
87
-
-
88
-
-
89
-
-
90
-
-
91
-
-
92
-
-
93
-
-
94
[A/T] SOL. Power (SS-B)
ATM Solenoid Valve
95
[A/T] SOL. (VFS_35R)
ATM Solenoid Valve
96
Memory Power
PCB Block
97
Wiper 'P' Input
PCB Block
98
-
-
99
-
-
100
-
-
101
-
-
102
APS (APS. 2 Supply)
Accelerator Position Sensor (APS)
103
APS (APS. 1 Supply)
Accelerator Position Sensor (APS)
104
APT (Supply)
A/C Pressure Transducer (APT)
105
O2 Sensor (Up) (V_G)
Oxygen Sensor (Up)
106
O2 Sensor (Down) (Signal)
Oxygen Sensor (Down)
107
O2 Sensor (Up) (V_IP)
Oxygen Sensor (Up)
108
-
-
109
Knock Sensor (Ground)
Knock Sensor (KS)
110
Knock Sensor (Signal)
Knock Sensor (KS)
111
-
-
112
-
-
113
-
-
114
-
-
115
-
-
116
-
-
117
[A/T] SOL. (SS-A)
ATM Solenoid Valve
118
[A/T] SOL. (VFS_T/CON)
ATM Solenoid Valve
119
Memory Power
PCB Block

Connector [B]
Pin No
Description
Connected to
1
Engine Control Relay 'ON' Input
Engine Control Relay
2
Engine Control Relay 'ON' Input
Engine Control Relay
3
Ground
Ground
4
Ground
Ground
5
Engine Control Relay 'ON' Input
PCB Block
6
P-CAN (High)
P-CAN (High)
7
P-CAN (Low)
P-CAN (Low)
8
-
-
9
-
-
10
-
-
11
-
-
12
-
-
13
OPTS (Signal)
Oil Pressure Switch
14
CMP (IN) (Signal)
Camshaft Position Sensor (Intake)
15
CMP (EX) (Signal)
Camshaft Position Sensor (Exhaust)
16
ETC Motor & Throttle Position Sensor.1 Signal
ETC Motor & Throttle Position Sensor
17
ETC Motor & Throttle Position Sensor Supply
ETC Motor & Throttle Position Sensor
18
-
-
19
-
-
20
-
-
21
-
-
22
-
-
23
-
-
24
Ignition Coil #1 (Control)
Ignition Coil #1
25
O2 Sensor (Up) (Heater)
Oxygen Sensor (Up)
26
O2 Sensor (Down) (Heater)
Oxygen Sensor (Down)
27
-
-
28
-
-
29
Local-CAN (High)
Electronic ATM Shift Lever, SCU (High)
30
Local-CAN (Low)
Electronic ATM Shift Lever, SCU (Low)
31
-
-
32
-
-
33
-
-
34
WTS #1 (Signal)
Engine Coolant Temperature Sensor
35
Sensor Power : Map, CMP (In), CKP
Sensor Power : Map, CMP (In), CKP
36
-
-
37
CMP (In) (Ground)
Camshaft Position Sensor (Intake)
38
CMP (EX) (Ground)
Camshaft Position Sensor (Exhaust)
39
ETC Motor & Throttle Position Sensor.2 Signal
ETC Motor & Throttle Position Sensor
40
-
-
41
-
-
42
Fuel Pump Relay Control
Fuel Pump Relay
43
Engine Control Relay Control
Engine Control Relay
44
-
-
45
-
-
46
A/C Relay Control
A/C Relay
47
Ignition Coil #3 (Control)
Ignition Coil #3
48
ETC DC Motor (+)
ETC Motor
49
ETC DC Motor (-)
ETC Motor
50
-
-
51
ON/Start (Input)
ON/Start (Input)
52
-
-
53
-
-
54
-
-
55
-
-
56
-
-
57
WTS #1 (Ground)
Engine Coolant Temperature Sensor
58
MAP & IAT Ground
MAP Sensor
59
-
-
60
-
-
61
-
-
62
ETC (TPS Groud)
ETC Motor & Throttle Position Sensor
63
-
-
64
-
-
65
Start Relay (Low Side)
Start Relay
66
-
-
67
-
-
68
-
-
69
-
-
70
OCV Control (EX)
CVVT Oil Control Valve (OCV)
71
OCV Control (IN)
CVVT Oil Control Valve (OCV)
72
-
-
73
-
-
74
-
-
75
Local-CAN2 (High)
Can Check
76
Local-CAN2 (Low)
Can Check
77
Alternator (IN)
Alternator
78
-
-
79
-
-
80
CKP (Ground)
Crankshaft Position Sensor (CKPS)
81
MAP Sensor (Signal)
MAP Sensor
82
Ignition Coil #1/#4 (Feedback)
Ignition Coil #1 / #4 (Feedback)
83
-
-
84
-
-
85
-
-
86
-
-
87
-
-
88
C/FAN Motor (PWM Signal)
C/FAN Motor
89
PCSV Control
Purge Control Solanoid Valve
90
CCV Control (Not Used)
Canister Close Valve
91
-
-
92
VIS Control
Variable Intake Solenoid Valve (VIS)
93
Ignition Coil #4 Control
Ignition Coil #4
94
Injector Coil #4 Control
Injector Coil #4
95
-
-
96
-
-
97
-
-
98
-
-
99
IMMO. Data Line
Immobilizer
100
-
-
101
-
-
102
-
-
103
Crankshaft Position Sensor (CKPS) signal input
Crankshaft Position Sensor (CKPS)
104
IAT Sensor
MAP Sensor
105
Ignition Coil #2 / #3 (Feedback)
Ignition Coil #2 / #3 (Feedback)
106
-
-
107
-
-
108
CMP (EX) (Supply)
Camshaft Position Sensor (CMPS)
109
FTPS (Not Used)
Fuel Tank Pressure Sensor (FTPS)
110
Engine RPM Signal
Engine RPM Signal
111
-
-
112
-
-
113
-
-
114
-
-
115
Thermostat PWM
Electronic Thermostat
116
Ignition Coil #2 Control
Ignition Coil #2
117
Injector Coil #1 Control
Injector Coil #1
118
Injector Coil #3 Control
Injector Coil #3
119
Injector Coil #2 Control
Injector Coil #2

Transaxle Control Module (TCM). Repair procedures

Inspection
1.
TCM ground circuit test : Measure the resistance between TCM and chassis ground.
(Inspect the terminal connected to the chassis ground with the back of harness connector as the inspection point of TCM side.)
Specification : Below 1Ω
2.
TCM connector test : Disconnect the TCM connector and visually check the ground terminals on TCM side and harness side for bent pins or poor contact pressure.
3.
If problem is not found in Steps 1 and 2, the TCM could be faulty.
If so, replace the TCM with a new one, and then check the vehicle again. If the vehicle operates normally then the problem was likely with the TCM.
4.
Reinspection of original TCM : Install the original TCM (probably broken) into a known-good vehicle and check the vehicle. If the problem occurs again, replace the original TCM with a new one.
If the problem does not reoccur, this is an intermittent problem and other part may be faulty.
Removal
1.
Perform the oil pressure characteristics backup procedure using the diagnostic tool when replacing with a new TCM.

2.
Turn ignition switch OFF and disconnect the negative (-) battery cable.
3.
Remove the air cleaner assembly.
(Refer to Engine Mechanical System - "Air Cleaner")
4.
Remove the TCM.
1)
Disconnect the TCM connector (A).

2)
Pull the clip (A) and then removing the TCM (B).

Installation
1.
To install, reverse the removal procedure.
2.
Oil-pressure characteristics input (TCM exchange)

  
In order to avoid any problem including sense of starting delay of the transaxle and shock at acceleration and vehicle start, make sure to process learning for TCM after replacing the transaxle / TCM.
(Refer to Automatic Transaxle Control System - "Repair Procedures")
Since TCM and ECM are integrated, perform the procedures related in the ECM after replacing the TCM.
(Refer to Engine Control / Fuel System - "Engine Control Module (ECM)")

Transaxle Oil Temperature Sensor. Description and operation

Description
Transaxle oil temperature sensor monitors the automatic transaxle fluid's temperature and conveys the readings to TCM.
It is an NTC (Negative Thermal Coefficient) sensor whose resistance has an inversely proportional relationship with the temperature level.
Data produced by this sensor is used to identify damper clutch activation and deactivation zones within the low temperature and high temperature range and to compensate hydraulic pressure levels during gear changes.

Transaxle Oil Temperature Sensor. Specifications

Specifications
▷ Type : Negative Thermal Coefficient Type
Temp.[(°C)°F]
Resistance (Ω)
Min
Max
(-40) -40
48153
45301
51006
(-20) -4.0
15614
14785
16443
(0) 32.0
5887
5605
6168
(20) 68.0
2510.6
2401.9
2619.3
(40) 104.0
1199.6
1152.4
1246.7
(60) 140.0
612.3
590.3
634.2
(80) 176.0
329.5
318.7
340.3
(100) 212.0
186
180.4
191.6
(120) 248.0
109.7
106.1
113.2
(140) 284.0
67.16
64.82
69.5
(150) 302.0
53.24
51.32
55.16

Transaxle Oil Temperature Sensor. Repair procedures

Inspection
  
Refer to the DTC manual for the check procedure.
Removal
  
Be careful not to damage the parts located under the vehicle (floor under cover, fuel filter, fuel tank and canister) when raising the vehicle using the lift.
(Refer to General Information - "Lift and Support Points")
When Diagnostic Trouble Codes (DTC) is on, perform the following procedure to replace it.
Automatic transaxle is composed of delicate components. Be careful not to cause any damage on the component in the course of assembly and disassembly.
Maintain clean condition so that foreign substance does not get into the automatic transaxle.
Use a coated apron, latex gloves, and stainless tray to prevent foreign substance from getting into the transaxle.
Automatic transaxle fluid (ATF) can be reused. Collect it using a clean 10-liter beaker.
1.
Turn ignition switch OFF and disconnect the negative (-) battery cable.
2.
Remove the battery.
(Refer to Engine Electrical System - "Battery")
3.
Remove the air cleaner assembly and air duct.
(Refer to Engine Mechanical System - "Air Cleaner")
4.
Disconnect the solenoid valve connector (A).

5.
Loosen the bolt and then removing the wiring bracket (A).
6.
Separate the air bleeder hose (B).

7.
Remove the under cover.
(Refer to Engine Mechanical System - "Engine Room Under Cover")
8.
Remove the drain plug (A) and drain the ATF totally and then reinstall the drain plug.
Tightening torque :
33.3 - 43.1 N.m (3.4 - 4.4 kgf.m, 24.6 - 31.8 lb-ft)

  
Replace the gasket before reinstalling the drain plug.
9.
Loosen the mounting bolts (A) of the valve body cover.
Tightening torque :
11.8 - 13.7 N.m (1.2 - 1.4 kgf.m, 8.7 - 10.1 lb-ft)

  
Be careful when removing the valve body cover because the remaining ATF remains in the valve body cover.
  
Replace the gasket (A) before reinstalling the valve body cover.
After the installation, start the engine and then check if there are any leakages from the valve body cover.

10.
Loosen the bolts and then removing the main harness (A).
Tightening torque :
9.8 - 11.8 N.m (1.0 - 1.2 kgf·m, 7.2 - 8.7 lb-ft)

  
Check for the looseness, poor connection, bending, corrosion, contamination, deterioration, or damage before reinstalling the solenoid valve connector.
11.
Loosen the mounting bolts and then removing the valve body assembly (A).
Tightening torque :
9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft)

12.
Disconnect the input & output speed sensor connector (A).

13.
Loosen the main connector bolts (A).
Tightening torque :
9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft)

  
Replace the O-ring (A) before reinstalling solenoid valve connector.

14.
Remove the solenoid valve connector mounting clip (A).

15.
Remove the solenoid valve connector (A) by pushing down from the transaxle.

Installation
1.
To install, reverse the removal procedure.
2.
Check fluid level, after filling the automatic transaxle with fluid.
(Refer to Automatic Transaxle Syatem - "Automatic Transaxle Fluid(ATF)")
  
After ATF level check or exchange, be sure to remove residual ATF on transaxle case.
(Be especially sure to remove residual ATF between automatic transaxle case and valve body cover)
After installing, check for leakage of coolant or fluid from hose connection during engine start.

Input Speed Sensor. Description and operation

Description
Input speed sensor is a vital unit that measures the rate of rotation of the input shaft inside the transaxle and delivers the readings to the TCM. The sensor provides critical input data that's used in feedback control, damper clutch control, gear setting control, line pressure control, clutch activation pressure control, and sensor fault analysis.

Input Speed Sensor. Specifications

Specifications
▷ Type : Hall effect sensor
▷ Specifications
Items
Specifications
Operation condition [°C(°F)]
(-40 to 150) -40 to 302
Sensor length (mm)
35.0 - 35.2 mm
Air gap (mm)
About 1.5 mm
Output voltage(V)
High
1.18 - 1.68
Low
0.59 - 0.84

Input Speed Sensor. Repair procedures

Inspection
  
Refer to the DTC manual for the check procedure.
Removal
  
Be careful not to damage the parts located under the vehicle (floor under cover, fuel filter, fuel tank and canister) when raising the vehicle using the lift.
(Refer to General Information - "Lift and Support Points")
When the solenoid valve Diagnostic Trouble Codes (DTC) is on, perform the following procedure to replace it.
Automatic transaxle is composed of delicate components. Be careful not to cause any damage on the component in the course of assembly and disassembly.
Maintain clean condition so that foreign substance does not get into the automatic transaxle.
Use a coated apron, latex gloves, and stainless tray to prevent foreign substance from getting into the transaxle.
Automatic transaxle fluid (ATF) can be reused. Collect it using a clean 10-liter beaker.
1.
Turn ignition switch OFF and disconnect the negative (-) battery cable.
2.
Remove the air duct and the air cleaner assembly.
(Refer to Engine Mechanical System - "Air Cleaner")
3.
Separate the air bleed hose (B) and then wiring bracket (A).

4.
Remove the under cover.
(Refer to Engine Mechanical System - "Engine Room Under Cover")
5.
Remove the drain plug (A) and reinstall the drain plug after draining ATF totally.
Drain plug tightening torque :
33.3 - 43.1 N.m (3.4 - 4.4 kgf.m, 24.6 - 31.8 lb-ft)

  
Replace the gasket before reinstalling the drain plug.
6.
Loosen the mounting bolts (A) of the valve body cover.
Tightening torque :
11.8 - 13.7 N.m (1.2 - 1.4 kgf.m, 8.7 - 10.1 lb-ft)

  
Be careful when removing the valve body cover because the remaining ATF remains in the valve body cover.
  
Replace the gasket (A) before reinstalling the valve body cover.
After the installation, start the engine and then check if there are any leakages from the valve body cover.

7.
Loosen the bolts and then removing the main harness (A).
Tightening torque :
9.8 - 11.8 N.m (1.0 - 1.2 kgf·m, 7.2 - 8.7 lb-ft)

  
Check for the looseness, poor connection, bending, corrosion, contamination, deterioration, or damage before reinstalling the solenoid valve connector.
8.
Loosen the mounting bolts and then removing the valve body assembly (A).
Tightening torque :
9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft)

9.
Disconnect the input & output speed sensor connector (A).

10.
Loosen the bolts and then removing the input / output speed sensor (A).
Tightening torque :
9.8 - 11.8 N.m (1.0 - 1.2 kgf·m, 7.2 - 8.7 lb-ft)

Installation
1.
To install, reverse the removal procedure.
2.
Check fluid level after filling the automatic transaxle with fluid.
(Refer to Automatic Transaxle Syatem-"Automatic Transaxle Fluid(ATF)")
  
After ATF level check or exchange, be sure to remove residual ATF on transaxle case.
(Be especially sure to remove residual ATF between automatic transaxle case and valve body cover)
After installing, check for leakage of coolant or fluid from hose connection during engine start.

Output Speed Sensor. Description and operation

Description
The output speed sensor is a vital unit that measures the rate of rotation of the transaxle's turbine shaft and output shaft, and delivers the readings to the TCM. The sensor provides critical input data that's used in feedback control, damper clutch control, gear setting control, line pressure control, clutch activation pressure control, and sensor fault analysis.

Output Speed Sensor. Specifications

Specifications
▷ Type : Hall effect sensor
▷ Specifications
Items
Specifications
Operation condition [°C(°F)]
(-40 to 150) -40 to 302
Output voltage(V)
High
1.18 - 1.68
Low
0.59 - 0.84

Output Speed Sensor. Repair procedures

Inspection
  
Refer to the DTC manual for the check procedure.
Removal
  
Be careful not to damage the parts located under the vehicle (floor under cover, fuel filter, fuel tank and canister) when raising the vehicle using the lift.
(Refer to General Information - "Lift and Support Points")
When the solenoid valve Diagnostic Trouble Codes (DTC) is on, perform the following procedure to replace it.
Automatic transaxle is composed of delicate components. Be careful not to cause any damage on the component in the course of assembly and disassembly.
Maintain clean condition so that foreign substance does not get into the automatic transaxle.
Use a coated apron, latex gloves, and stainless tray to prevent foreign substance from getting into the transaxle.
Automatic transaxle fluid (ATF) can be reused. Collect it using a clean 10-liter beaker.
1.
Turn ignition switch OFF and disconnect the negative (-) battery cable.
2.
Remove the air cleaner assembly and air duct.
(Refer to Engine Mechanical System - "Air Cleaner")
3.
Separate the air bleed hose (B) and then wiring bracket (A).

4.
Remove the under cover.
(Refer to Engine Mechanical System - "Engine Room Under Cover")
5.
Remove the drain plug (A) and reinstall the drain plug after draining ATF totally.
Drain plug tightening torque :
33.3 - 43.1 N.m (3.4 - 4.4 kgf.m, 24.6 - 31.8 lb-ft)

6.
Loosen the mounting bolts (A) of the valve body cover.
Tightening torque :
11.8 - 13.7 N.m (1.2 - 1.4 kgf.m, 8.7 - 10.1 lb-ft)

  
Be careful when removing the valve body cover because the remaining ATF remains in the valve body cover.
  
Replace the gasket (A) before reinstalling the valve body cover.
After the installation, start the engine and then check if there are any leakages from the valve body cover.

7.
Loosen the bolts and then removing the main harness (A).
Tightening torque :
9.8 - 11.8 N.m (1.0 - 1.2 kgf·m, 7.2 - 8.7 lb-ft)

  
Check for the looseness, poor connection, bending, corrosion, contamination, deterioration, or damage before reinstalling the solenoid valve connector.
8.
Loosen the mounting bolts and then removing the valve body assembly (A).
Tightening torque :
9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft)

  
Check for the looseness, poor connection, bending, corrosion, contamination, deterioration, or damage before reinstalling the solenoid valve connector.
9.
Disconnect the input & output speed sensor connector (A).

10.
Loosen the bolts and then removing the input / output speed sensor (A).
Tightening torque :
9.8 - 11.8 N.m (1.0 - 1.2 kgf·m, 7.2 - 8.7 lb-ft)

Installation
1.
To install, reverse the removal procedure.
2.
Check fluid level after filling the automatic transaxle with fluid.
(Refer to Automatic Transaxle Syatem-"Automatic Transaxle Fluid(ATF)")
  
After ATF level check or exchange, be sure to remove residual ATF on transaxle case.
(Be especially sure to remove residual ATF between automatic transaxle case and valve body cover)
After installing, check for leakage of coolant or fluid from hose connection during engine start.

Position Switch. Description and operation

Description
The position switch mounted on the upper of transaxle and connected with shifter lever.
The position switch has four points of contact and it makes the signals(S1, S2, S3, S4).
The position switch signals delivered at the TCM according to control of the shift lever positions(P, R, N, D) and it is used to control of the gear setting.

Position Switch. Troubleshooting

Fault Diagnosis
▶ Fault Diagnosis for Symptom
Major Symptom
Expected Cause
Items to Check and Measures
Shift lever inoperable
Faulty shift cable tension
Adjust shift cable tension
(refer to "Automatic Transaxle System – Position Switch")
Faulty shift cable assembly/connection
Check manual control valve assembly and re-assemble if necessary.
Faulty shift cable bracket installation
Check cable installation on the shift lever assembly and repair if necessary.
Shock when shifting to and from D/R

Motor run-up when shifting to and from D/R
Faulty inhibitor switch "N" setting
Use the "N" setting jig and adjust the "N" setting.
(refer to "Automatic Transaxle System – Position Switch")
Faulty oil pressure in the valve body.
Replace valve body assembly or inspect/replace transaxle assembly
Faulty engine start

Current gear not indicated in the Cluster

Warning Lamp ON

Engine stall while stopped

Creeping not possible

Auto parking release disabled
Faulty CAN terminating resistance/circuit
Check PCU/battery management system module.
Check PCU wiring connector conn ction.
Faulty power supply (IG.1) to inhibitor switch circuit
Check for gap on the junction box power terminal in the engine compartment and fuse (TCU2) connection. Repair terminal or exchange junction box if necessary.
Faulty inhibitor switch circuit fuse
Check fuse and junction box terminal, and repair.
Faulty inhibitor switch wiring connector
Check for foreign substance in the wiring connector, and check for gap on the terminal.
Check sealing on unused pin, and check for corrosion on the terminal.
Faulty reverse lamp circuit
Check reverse lamp ground, and reassemble if necessary.
Faulty inhibitor switch wiring ground
Check wiring ground, and reassemble if necessary.
Faulty inhibitor switch circuit
(unused code)
Inspect in accordance with the inspection flow, then replace inhibitor switch if necessary.
Faulty inhibitor switch operation
(faulty mid-range)
Inspect in accordance with the inspection flow, then replace inhibitor switch if necessary.

Position Switch. Specifications

Specifications
▷ Type : Combination of output signals from 4 terminals
▷ Specifications
Items
Specifications
Power supply (V)
12
Output type
Combination of output signals

Position Switch. Repair procedures

Inspection
▶ Inspection flow of the position switch

▶ Items to check
1.
Inspect DTC code.
2.
Inspect whether N setting matches.
Adjust N setting
(Refer to Automatic Transaxle Control System - "Position Switch")
3.
Inspect shift cable separation.
Adjust shift cable separation
(Refer to Automatic Transaxle Control System - "Shift Cable")
4.
Inspect whether connector is connected.
Inspect connector thoroughly for looseness, poor connection, bending, corrosion, contamination, deformation, or damage.
Turn ignition key "ON" and engine "OFF" and measure the power supplied to inhibitor switch circuit and voltage between ground.
Specification : approx. 12V
Fix the pin wiring when connector pin wiring is faulty.
(Refer to ETM - "wiring repair").
5.
Inspect ground condition on reversing light circuit.
Check the ground location of reversing light
(Refer to ETM - "Harness Location Map")
Reattach reversing light if ground condition is faulty.
6.
Inspect wiring connection on junction box power terminal and fuse lamp.
Check whether fuse holder is separated and holder is holding the fuse tight.

Attach tester fuse to check if it is connected appropriately.

Check whether fuse capacity is appropriate for each circuit.
Check if fuse is damaged.
Check pulling of fuse fixing wiring, inflow of foreign substance, and arrangement condition of terminal.
Relocate the terminal that has been pulled and inspect using the method explained above.
When problem is not solved, refer to the circuit diagram wiring repair instructions to fix or replace the terminal.
7.
Inspect inhibitor switch signal.
Turn ignition key "ON" and engine "OFF".
Measure the voltage between each terminal and chassis ground when shifting lever to "P, R, N, D" range.
Specified value : Refer to specification "signal code" table
Removal
1.
Make sure vehicle does not roll before setting shift lever to "N" position.
2.
Turn ignition switch OFF and disconnect the negative (-) battery cable.
3.
Remove the air duct and air cleaner assembly.
(Refer to Engine Mechanical System - "Air Cleaner")
4.
Loosen the nut and then removing the shift cable (A) from position switch.

5.
Disconnect the position switch connector (A).

6.
Loosen the nut and then removing the manual lever (A).

7.
Loosen the bolts and then removing the position switch (A).

Installation
1.
Check that the shift lever is placed in the "N" position.
2.
Lightly tighten the bolts (B) after installing the position switch (A).

3.
Lightly tighten the nut (B) after installing the manual control lever (A).

4.
Align the hole in the manual control lever with the "N" position hole of the inhibitor switch and then insert the position switch guide pin (SST No. : 09480 - A3800) (A).

5.
Tighten the nut (A) and bolts (B) with the specified torque.
Tightening torque :
A : 17.7 - 24.5 N.m (1.8 - 2.5 kgf.m, 13.0 - 18.1 lb-ft)
B : 9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft)

6.
Connect the position switch connector (A).

7.
Push nut lightly to "F" direction shown to eliminate free play of shift cable.
8.
Tighten the nut and then install the shift cable (A).
Tightening torque :
9.8 - 13.7 N.m (1.0 - 1.4 kgf.m, 7.2 - 10.1 lb-ft)

9.
Remove the position switch guide pin (SST No. : 09480 - A3800) (A) from the hole.

10.
Install the air cleaner and air duct.
(Refer to Engine Mechanical System - "Air Cleaner")
11.
Connect the battery negative (-) cable.
12.
Check that operating surely at each range of the inhibitor switch corresponding to each position of shift lever.

Shift Lever. Repair procedures

Removal
1.
Turn ignition switch OFF and disconnect the negative (-) battery cable.
2.
Remove the shift knob & boots.
(1)
Separate the shift boots (A).

(2)
Pull the shift knob and then removing the shift knob & boots (A).

3.
Remove the floor console assembly.
(Refer to Body - "Floor Console")
4.
Remove the floor console air duct (A) and then disconnect the connector (B).

5.
Remove the snap pin (A) and then separate the shift cable (B).

  
When assembling shift cable, the projection (A) must face upwards.

When assembling the snap pin, be careful about the correct direction.
- The band portion (A) must point to the front of the vehicle.
- The band portion (A) must point outwards.

6.
Remove the bolts and then shift lever assembly (A).
Tightening torque :
8.8 - 13.7 N.m (0.9 - 1.4 kgf.m, 6.5 - 10.1 lb-ft)

Installation
1.
To install, reverse the removal procedure.
  
Install the cable after placing the shift lever and the manual control lever in the N position.

Shift Cable. Repair procedures

Removal
1.
Make sure vehicle does not roll before setting shift lever to "N" position.
2.
Turn ignition switch OFF and disconnect the negative (-) battery cable.
3.
Remove the air cleaner assembly and air duct.
(Refer to Engine Mechanical System - "Air Cleaner")
4.
Remove the battery and battery tray.
(Refer to Engine Electrical System - "Battery")
5.
Loosen the nut (A) and then separate the shift cable (B).

6.
Remove the shift knob & boots.
(1)
Remove the shift boots (A).

(2)
Pull the shift knob and then removing the shift knob and boots (A).

7.
Remove the floor console assembly.
(Refer to Body - "Floor Console")
8.
Remove the floor console air duct (A).

9.
Remove the snap pin (A) and then separate the shift cable (B).

10.
Loosen the nuts (A) and then removing the shift cable retainer (B).

11.
Remove the shift cable by pulling it toward the interior.
Installation
1.
Install the cable retainer (B) and then tightening the nuts (A).
Tightening torque:
11.7 - 14.7 N.m(1.2 - 1.5 kgf.m, 8.6 - 10.8 lb-ft)

  
Install the cable after placing the shift lever and the manual control lever in the N position.
2.
Install the shift cable (B) in the shift lever and then install the snap pin (A).

  
When assembling shift cable, the projection (A) must face upwards.

When assembling the snap pin, be careful about the correct direction.
• The band portion (A) must point to the front of the vehicle.
• The band portion (A) must point outwards.

3.
Install the floor console air duct (A).

4.
Install the shift knob & boots (A).

5.
Insert the shift cable (B) and then lightly tighten the nut (A).

6.
Align the hole in the manual control lever with the "N" position hole of the position switch and then insert the position switch guide pin (SST No.: 09480-A3800) (A).

7.
Push shift cable (A) lightly to "F" direction shown to eliminate free play of shift cable.

8.
Tighten the nut (A) with the specified torque.
Tightening torque:
9.8 - 14.7 N.m (1.0 - 1.4 kgf.m, 7.2 - 10.8 lb-ft)

  
Replace the cable clip, use a new one.

9.
Remove the position switch guide pin (SST No. : 09480 - A3800) (A) from the hole.

10.
Install the battery and tray.
(Refer to Engine Electical System - "Battery" )
11.
Install the air cleaner assembly and air duct.
(Refer to Engine Mechanical System - "Air Cleaner")
  
Check that operating surely at each range of the position switch corresponding to each position of shift lever.
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