Mitsubishi Grandis. Manual — part 950
TROUBLESHOOTING
TRACTION CONTROL/ACTIVE STABILITY CONTROL SYSTEM
35C-125
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.
Use MUT-III to diagnose the CAN bus lines.
(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.
Q: Is the check result normal?
YES :
Check and repair the power supply circuit
NO :
Repair the CAN bus lines (Refer to GROUP
54D, CAN bus line Diagnostic flow
).
AC302297
AC310120
AB
MB991827
16-pin
MB991910
MB991824
TROUBLESHOOTING
TRACTION CONTROL/ACTIVE STABILITY CONTROL SYSTEM
35C-126
INSPECTION PROCEDURE 2: Communication between Scan Tool and the steering wheel sensor is
not possible.
<LH drive vehicles>
IGNITION
SWITCH (IG1)
DIAGNOSIS
CONNECTOR
FRONT SIDE
POWER
SUPPLY
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
Data Link Connector Circuit
TROUBLESHOOTING
TRACTION CONTROL/ACTIVE STABILITY CONTROL SYSTEM
35C-127
<RH drive vehicles>
TECHNICAL DESCRIPTION (COMMENT)
If the MUT-III can not communicate with the steering
wheel sensor, the CAN bus lines may be defective. If
the ASC system does not work, the steering wheel
sensor or its power supply circuit may be defective.
PROBABLE CAUSES
• Damaged wiring harness or connector
• Malfunction of the steering wheel sensor
IGNITION
SWITCH (IG1)
DIAGNOSIS
CONNECTOR
POWER
SUPPLY
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
FRONT SIDE
Data Link Connector Circuit
TROUBLESHOOTING
TRACTION CONTROL/ACTIVE STABILITY CONTROL SYSTEM
35C-128
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.
Use MUT-III to diagnose the CAN bus lines.
(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.
Q: Is the check result normal?
YES :
Check and repair the power supply circuit
NO :
Repair the CAN bus lines (Refer to GROUP
54D, CAN bus line Diagnostic flow
).
AC302297
AC310120
AB
MB991827
16-pin
MB991910
MB991824
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