Mitsubishi Outlander XL. Manual — part 642
STEP 4. M.U.T.-III other system diagnostic trouble code
Using scan tool, check that the diagnostic trouble code No.
U0141 is not set by the combination meter system.
Q:Is the diagnostic trouble code set?
YES:
Troubleshoot the combination meter, and then go to
Step 6.
NO:
Go to Step 5.
STEP 5. M.U.T.-III other system diagnostic trouble code
Using scan tool, check that the diagnostic trouble code No.
U0121 is not set by the ETACS system.
Q:Is the diagnostic trouble code set?
YES:
Troubleshoot the ETACS-ECU, and then go to Step 6.
NO:
Replace the ABS-ECU, and then go to Step 6.
STEP 6. Retest the system.
Q:Does the ABS warning light turn ON and OFF normally?
YES:
The procedure is complete.
NO:
Return to Step 1.
Inspection Procedure 4: Brake Warning Light does not Illuminate when the Ignition
Switch is Turned to ON Position (Engine Stopped).
M13502000901USA0000010000
ANTI-LOCK BRAKING SYSTEM (ABS)
35B-131
ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS
Brake Fluid Level Switch and Parking Brake Switch Circuit
INTERFACE
CIRCUIT
CAN DRIVE
CIRCUIT
IG1
RELAY
ETACS-
ECU
BRAKE FLUID
LEVEL SWITCH
INTERFACE
CIRCUIT
INTERFACE
CIRCUIT
CPU
CAN
TRANSCEIVER
CIRCUIT
LED DRIVE
CIRCUIT
COMBINATION
METER
PARKING BRAKE
SWITCH
LCD
FUEL WARNING/OIL
PRESSURE
WARNING
35B-132
ANTI-LOCK BRAKING SYSTEM (ABS)
ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS
CIRCUIT OPERATION
ABS-ECU sends the illumination request signal of the break
warning light to the combination meter through ETACS-ECU via
the CAN communication.
TECHNICAL DESCRIPTION (COMMENT)
This may be caused by faults in the CAN bus line, ETACS-ECU,
combination meter or ABS-ECU.
PROBABLE CAUSES
⦆
Damaged wiring harness and connectors
⦆
Malfunction of ETACS-ECU
⦆
Combination meter malfunction
⦆
ABS-ECU malfunction
DIAGNOSIS
Required Special Tools:
⦆
MB991958: Scan Tool (M.U.T.-III Sub Assembly)
⦆
MB991824: Vehicle Communication Interface (V.C.I.)
⦆
MB991827: M.U.T.-III USB Cable
⦆
MB991910: M.U.T.-III Main Harness A
STEP 1. M.U.T.-III CAN bus diagnostics
Use scan tool to diagnose the CAN bus lines.
Q:Is the check result normal?
YES:
Go to Step 2.
NO:
Repair the CAN bus lines. (Refer to GROUP 54D - CAN
Bus Diagnostics table P.54D-17.)
STEP 2. M.U.T.-III diagnostic trouble code
Use scan tool to check the diagnostic trouble code for the ABS
system.
Q:Is the diagnostic trouble code set?
YES:
Carry out the diagnosis for the diagnostic trouble
NO:
Go to Step 3.
STEP 3. M.U.T.-III other system diagnostic trouble code
Using scan tool, check that the diagnostic trouble code No.
U0141 is not set by the combination meter system.
Q:Is the diagnostic trouble code set?
YES:
Troubleshoot the combination meter, and then go to
Step 5.
NO:
Go to Step 4.
STEP 4. M.U.T.-III other system diagnostic trouble code
Using scan tool, check that the diagnostic trouble code No.
U0121 is not set by the ETACS system.
Q:Is the diagnostic trouble code set?
ANTI-LOCK BRAKING SYSTEM (ABS)
35B-133
ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS
YES:
Troubleshoot the ETACS, and then go to Step 5.
NO:
Replace the ABS-ECU, and then go to Step 5.
STEP 5. Retest the system.
Q:Does the brake warning light turn ON and OFF normally?
YES:
The procedure is complete.
NO:
Return to Step 1.
Inspection Procedure 5: ABS Warning Light Stays ON after the Engine is Started.
M13502000167USA0000010000
35B-134
ANTI-LOCK BRAKING SYSTEM (ABS)
ANTI-LOCK BRAKING SYSTEM (ABS) DIAGNOSIS
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст