Mitsubishi Grandis. Manual - part 954

TROUBLESHOOTING

TRACTION CONTROL/ACTIVE STABILITY CONTROL SYSTEM

35C-141

YES : 

Go to Step 7.

NO : 

Repair or replace the charging system 
component(s).Then go to Step 8.

STEP 7. Retest the system.

Q: Can the steering wheel sensor communicate with 

the MUT-III?

YES : 

It can be assumed that this malfunction is 

intermittent. Refer to GROUP 00, How to 
Use Troubleshooting/Inspection Service 
Points 

− How to Cope with Intermittent 

Malfunction 

P.00-5

.

NO : 

Replace the steering wheel sensor. Then go 
to Step 8.

STEP 8. Retest the system.

Q: Can the steering wheel sensor communicate with 

the MUT-III?

YES : 

The procedure is complete.

NO : 

Go to Step 1.

INSPECTION PROCEDURE 5: G and yaw rate sensor power supply supply system

CIRCUIT OPERATION

• G and yaw rate sensor terminal 1 is energized 

from the TCL/ASC-ECU by the G and yaw rate 
sensor. 

• If the power supply to the G and yaw rate sensor 

has failed, TCL/ASC-ECU related diagnosis code 
No.C1864 is set.

PROBABLE CAUSES

• Damaged wiring harness or connector

• Malfunction of the G and yaw rate sensor

• Malfunction of the TCL/ASC-ECU.

TCL/ASC-ECU

Wire colour code
B : Black     LG : Light green     G : Green     L : Blue     W : White     Y : Yellow     SB : Sky blue
BR : Brown     O : Orange     GR : Gray     R : Red     P : Pink     V : Violet   

G AND YAW 
LATE SENSOR

G and Yaw Late Sensor Circuit

TROUBLESHOOTING

TRACTION CONTROL/ACTIVE STABILITY CONTROL SYSTEM

35C-142

DIAGNOSIS

STEP 1. MUT-III CAN bus diagnostics

CAUTION

Before connecting or disconnecting the MUT-III, 
turn the ignition switch to the "LOCK" (OFF) 
position.
(1) Connect MUT-III to the 16-pin diagnosis 

connector.

(2) Turn the ignition switch to the "ON" position.
(3) Diagnose the CAN bus line.
(4) Turn the ignition switch to the "LOCK" (OFF) 

position.

Q: Is the check result normal?

YES : 

Go to Step 3.

NO : 

Repair the CAN bus line (Refer to GROUP 
54D, CAN bus line Diagnostic flow 

P.54D-9

). Then go to Step 2.

STEP 2. MUT-III diagnosis code

CAUTION

Before connecting or disconnecting the MUT-III, 
turn the ignition switch to the "LOCK" (OFF) 
position.
(1) Turn the ignition switch to the "ON" position.
(2) Erase the diagnosis code.
(3) Turn the ignition switch to the "LOCK" (OFF) 

position.

(4) Turn the ignition switch to the "ON" position.
(5) Check if the diagnosis code is set.
(6) Turn the ignition switch to the "LOCK" (OFF) 

position.

Q: Is code No.C1864 set? 

YES : 

Go to Step 3.

NO : 

The procedure is complete.

AC302297

AC310120

AB

MB991827

16-pin

MB991910

MB991824

AC302297

AC310120

AB

MB991827

16-pin

MB991910

MB991824

TROUBLESHOOTING

TRACTION CONTROL/ACTIVE STABILITY CONTROL SYSTEM

35C-143

STEP 3. MUT-III data list

CAUTION

Before connecting or disconnecting the MUT-III, 
turn the ignition switch to the "LOCK" (OFF) 
position.
(1) Connect the MUT-III to the 16-pin diagnosis 

connector.

(2) Turn the ignition switch to the "ON" position.
(3) Use MUT-III to read the following data list.

Item 31: Lateral G sensor

• Acceleration should measure nearly 0 G 

when the vehicle is stopped at a level surface.

• Acceleration should change within the range 

of -1.7 

− 1.7 G during running.

Item 33: Yaw rate sensor

• Angular velocity should measure nearly 0 

deg/s (-3 

− 3 deg/s) when the vehicle is 

stopped at a level surface.

• Angular velocity should change within the 

range of -100 

−100 deg/s during running.

Q: Is the check result normal?

YES : 

Then go to step 8.

NO : 

Go to Step 4.

STEP 4. Voltage measurement at G and yaw rate 
sensor connector C-117.

(1) Disconnect the G and yaw rate sensor connector 

C-117, and measure at the harness side 
connector.

(2) Turn the ignition switch to the "ON" position.
(3) Measure the voltage between terminal 1 and 

AC302297

AC310120

AB

MB991827

16-pin

MB991910

MB991824

AC313186

AB

Connector: C-117
<L.H.drive vehicles>

C-117

C-117 Harness connector
(harness side)

AC313188AB

Connector: C-117
<R.H.drive vehicles>

C-117

C-117 Harness connector
(harness side)

TROUBLESHOOTING

TRACTION CONTROL/ACTIVE STABILITY CONTROL SYSTEM

35C-144

body earth. 

OK: System voltage

Q: Is the check result normal?

YES : 

Go to Step 6.

NO : 

Go to Step 5.