Mitsubishi Grandis. Manual — part 940
TROUBLESHOOTING
TRACTION CONTROL/ACTIVE STABILITY CONTROL SYSTEM
35C-85
STEP 4. Check whether the diagnosis code is
reset.
Check again if the diagnosis code is set.
(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) Turn the steerng wheel full left and right.
(6) Check if the diagnosis code is set.
(7) Turn the ignition switch to the "LOCK" (OFF)
position.
Q: Is code No.C1505 or C1506 set?
YES :
<C1505 is set> Go to Step 5. <C1506 is
set> Check the steering wheel sensor
diagnosis code, and diagnose the diagnosis
code.
NO :
The procedure is complete.
STEP 5. Check whether the diagnosis code is
reset.
CAUTION
Before connecting or disconnecting the MUT-III,
turn the ignition switch to the "LOCK" (OFF)
position.
Replace the steering sensor, and check whether
diagnosis code No.C1505 or C1506 is reset.
(1) Replace the steering sensor.
(2) Connect MUT-III to the 16-pin diagnosis
connector.
(3) Turn the ignition switch to the "ON" position.
(4) Erase the diagnosis code.
(5) Turn the ignition switch to the "LOCK" (OFF)
position.
(6) Turn the ignition switch to the "ON" position.
(7) Check if the diagnosis code is set.
(8) Turn the ignition switch to the "LOCK" (OFF)
position.
Q: Is code No.C1505 set?
YES :
Replace the hydraulic unit (integrated with
TCL/ASC-ECU). Then go to Step 7.
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-86
STEP 6. Check whether the diagnosis code is
reset.
Check again if the diagnosis code is set.
(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) Turn the steerng wheel full left and right.
(6) Check if the diagnosis code is set.
(7) Turn the ignition switch to the "LOCK" (OFF)
position.
Q: Is code No.C1505 or C1506 set?
YES :
Replace the hydraulic unit (integrated with
TCL/ASC-ECU). <C1505 is set> Then go to
Step 7. <C1506 is set> Check the steering
wheel sensor diagnosis code, and diagnose
the diagnosis code.
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
STEP 7. Check whether the diagnosis code is
reset.
Check again if the diagnosis code is set.
(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) Turn the steerng wheel full left and right.
(6) Check if the diagnosis code is set.
(7) Turn the ignition switch to the "LOCK" (OFF)
position.
Q: Is code No.C1505 or C1506 set?
YES :
Go to Step 1.
NO :
The procedure is complete.
Code No.C1607: Trouble in TCL/ASC-ECU
AC302297
AC310120
AB
MB991827
16-pin
MB991910
MB991824
AC302297
AC310120
AB
MB991827
16-pin
MB991910
MB991824
TROUBLESHOOTING
TRACTION CONTROL/ACTIVE STABILITY CONTROL SYSTEM
35C-87
CAUTION
If there is any problem in the CAN bus lines, an
incorrect diagnosis code may be set. Prior to this
diagnosis, diagnose the CAN bus lines.
CAUTION
Whenever the ECU is replaced, ensure that the
CAN bus lines are normal.
DIAGNOSIS CODE SET CONDITIONS
The TCL/ASC-ECU always monitors itself while the
system is working. If the ECU detects any faults, it
will set this diagnosis code.
PROBABLE CAUSES
• Malfunction of the hydraulic unit (integrated with
TCL/ASC-ECU)
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 2.
NO :
Repair the CAN bus line (Refer to GROUP
54D, CAN bus line Diagnostic flow
). 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.C1607 set?
YES :
Replace the hydraulic unit (integrated with
TCL/ASC-ECU).
NO :
The procedure is complete.
Code No.C1640: Incorrectly installed TCL/ASC-ECU
AC302297
AC310120
AB
MB991827
16-pin
MB991910
MB991824
AC302297
AC310120
AB
MB991827
16-pin
MB991910
MB991824
TROUBLESHOOTING
TRACTION CONTROL/ACTIVE STABILITY CONTROL SYSTEM
35C-88
CAUTION
If there is any problem in the CAN bus lines, an
incorrect diagnosis code may be set. Prior to this
diagnosis, diagnose the CAN bus lines.
CAUTION
Whenever the ECU is replaced, ensure that the
CAN bus lines are normal.
DIAGNOSIS CODE SET CONDITIONS
The TCL/ASC-ECU always monitors itself while the
system is working. If the ECU detects any faults, it
will set this diagnosis code.
PROBABLE CAUSES
• A different hydraulic unit is used. (integrated with
TCL/ASC-ECU)
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 2.
NO :
Repair the CAN bus line (Refer to GROUP
54D, CAN bus line Diagnostic flow
). 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.C1640 set?
YES :
Replace the hydraulic unit (integrated with
TCL/ASC-ECU).
NO :
The procedure is complete.
AC302297
AC310120
AB
MB991827
16-pin
MB991910
MB991824
AC302297
AC310120
AB
MB991827
16-pin
MB991910
MB991824
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