Mitsubishi Grandis. Manual - part 938

TROUBLESHOOTING

TRACTION CONTROL/ACTIVE STABILITY CONTROL SYSTEM

35C-77

STEP 5. Check TCL/ASC-ECU connector A-04, 
intermediate connector A-16 and G and yaw rate 
sensor connector C-117 for loose, corroded or 
damaged terminals, or terminals pushed back in 
the connector.

TROUBLESHOOTING

TRACTION CONTROL/ACTIVE STABILITY CONTROL SYSTEM

35C-78

Q: Is the check result normal? 

YES : 

Go to Step 6.

NO : 

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

AC312621

Oil reservoir

Connector: A-04

AB

A-04

Hydraulic unit
(with built-in TCL/ASC-ECU)

A-04 Harness connector
(harness side)

AC312624AF

Connector: C-117
<L.H.drive vehicles>

C-117

C-117 Harness connector
(harness side)

AC312625AF

Connector: C-117
<R.H.drive vehicles>

C-117

C-117 Harness connector
(harness side)

AC312617AD

Connector: A-16
<L.H.drive vehicles>

A-16 (B)

AC312619AD

Connector: A-16
<R.H.drive vehicles>

A-16 (B)

TROUBLESHOOTING

TRACTION CONTROL/ACTIVE STABILITY CONTROL SYSTEM

35C-79

STEP 6. Check the harness wires between 
TCL/ASC-ECU connector A-04 and G and yaw 
rate sensor connector C-117.

Check the harness for short circuit.

Q: Is the check result normal? 

YES : 

Go to Step 7.

NO : 

Repair the wiring harness. Then go to Step 
8.

STEP 7. Check whether the diagnosis code is 
reset.

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.C1377 set? 

YES : 

Replace the hydraulic unit (integrated with 

TCL/ASC-ECU). Then go to Step 8.

NO : 

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

.

AC312621

Oil reservoir

Connector: A-04

AB

A-04

Hydraulic unit
(with built-in TCL/ASC-ECU)

A-04 Harness connector
(harness side)

AC312624AF

Connector: C-117
<L.H.drive vehicles>

C-117

C-117 Harness connector
(harness side)

AC312625AF

Connector: C-117
<R.H.drive vehicles>

C-117

C-117 Harness connector
(harness side)

AC302297

AC310120

AB

MB991827

16-pin

MB991910

MB991824

TROUBLESHOOTING

TRACTION CONTROL/ACTIVE STABILITY CONTROL SYSTEM

35C-80

STEP 8. Check whether the diagnosis code is 
reset.

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.C1377 set? 

YES : 

Repeat the troubleshooting from Step 1.

NO : 

The procedure is complete.

AC302297

AC310120

AB

MB991827

16-pin

MB991910

MB991824