2004 MITSUBISHI ENDEAVOR diagnosis

2. Turn the ignition switch to the "ON" position.
3. Diagnose the CAN bus line.
Q: Is the check result satisfactory?
YES: Check and repair the power supply circuit system (Refer to
INSPECTION PROCEDURE 4: STEERING WHEEL SENSOR
POWER SUPPLY SYSTEM
).
NO: Repair the CAN bus lines (Refer to DIAGNOSTIC TROUBLE
CODE DIAGNOSIS
or DIAGNOSIS < VEHICLES WITHOUT
ADVANCED AIR BAG
).
INSPECTION PROCEDURE 3: TCL/ASC-ECU power supply system
2004 Mitsubishi Endeavor LS
2004 BRAKES Traction Control, Active Skid Control System - Endeavor

Fig. 204: Identifying Connectors: C
-214, C
-215

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
CIRCUIT OPERATION
The TCL/ASC-ECU is energized by the ignition switch (IG2) through multi-
purpose fuse 13 and the TCL/ASC-ECU terminal 32. If the power supply to the TCL/ASC-ECU has failed, scan tool MB991958 will
not be able to communicate with it.
TROUBLESHOOTING HINTS (The most likely causes for this case:)
Damaged wiring harness or connector Defective battery Charging system failed Malfunction of the hydraulic unit (integrated with TCL/ASC-ECU)
DIAGNOSIS
2004 Mitsubishi Endeavor LS
2004 BRAKES Traction Control, Active Skid Control System - Endeavor

Fig. 213: Identifying Connectors: C
-211, C
-215, C
-312

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
CIRCUIT OPERATION
The steering wheel sensor is energized by the ignition switch (IG2) through
multi-purpose fuse 13 and the steering wheel sensor terminal 2. If the power supply to the steering wheel sensor has failed, scan tool (MUT-III
Sub Assembly) will not be able to communicate with it.
TROUBLESHOOTING HINTS (The most likely causes for this case:)
Damaged wiring harness or connector Defective battery Charging system failed Malfunction of the steering wheel sensor
DIAGNOSIS Required Special Tools:
MB991958: Scan Tool (MUT-III Sub Assembly)
MB991824: Vehicle Communication Interface (V.C.I.) MB991827: MUT-III USB Cable MB991910: MUT-III Main Harness A
MB991952: ABS Check Harness
STEP 1. Measure the volta
ge at steerin
g wheel sensor connector C-312
.

2004 Mitsubishi Endeavor LS
2004 BRAKES Traction Control, Active Skid Control System - Endeavor

Malfunction of the G and yaw rate sensor
DIAGNOSIS Required Special Tools:
MB991958: Scan Tool (MUT-III Sub Assembly)
MB991824: Vehicle Communication Interface (V.C.I.) MB991827: MUT-III USB Cable MB991910: MUT-III Main Harness A
MB991952: ABS Check Harness
STEP 1. Measure the voltage at G and yaw rate sensor connector C-36.
1. Disconnect the G and yaw rate sensor connector C-36, and measure at the
harness side connector.
2. Turn the ignition switch to the "ON" position.
3. Measure the voltage between terminal 1 and body ground.
Voltage should measure battery positive voltage (approximately 12
volts
).

2004 Mitsubishi Endeavor LS
2004 BRAKES Traction Control, Active Skid Control System - Endeavor

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA
.
2. Turn the ignition switch to the "ON" position.
3. Read the TCL/ASC diagnostic trouble code.
Q: Is the DTC U1105 (current trouble) set?
YES: Diagnose the TCL/ASC by referring to DTC U1105: YR/G CAN
TIMEOUT/NOT EQUIPPED
.
NO: The procedure is complete.
INSPECTION PROCEDURE 11: TCL/ASC System dose not Operate. COMMENT The fall-safe function is probably canceling TCL/ASC system. In this case, scan
tool MB991958 can be used to Retest each system by checking the diagnostic
trouble codes. TROUBLESHOOTING HINTS (The most likely causes for this case:)
Malfunction of the CAN bus line. Malfunction of the TCL/ASC-ECU.
DIAGNOSIS Required Special Tools:
MB991958: Scan Tool (MUT-III Sub Assembly)
MB991824: Vehicle Communication Interface (V.C.I.) MB991827: MUT-III USB Cable MB991910: MUT-III Main Harness A
STEP 1. Hydraulic unit check
Refer to POINTS IN WAVEFORM MEASUREMENT
.
Q: Is the hydraulic unit normal?

2004 Mitsubishi Endeavor LS
2004 BRAKES Traction Control, Active Skid Control System - Endeavor

4. After checking that the selector lever is in "P" range, start the engine.
5. Select "Interactive Diagnosis" from the start-up screen.
6. Select "System Select."
7. Choose "ABS/ASC/ASTC" from the "CHASSIS" tab.
8. Select "Actuator Test" from "ABS/ASC/ASTC" screen
Fig. 243: Selecting Scan Tool Actuator Test

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
9. Choose an appropriate item for hydraulic unit check.
NOTE: The TCL/ASC system will switch to the scan tool mode
and the ABS warning light, TCL/ASC indicator and TCL
OFF indicator will illuminates.
NOTE: When the ABS and TCL/ASC has been interrupted by
the fail-safe function, scan tool MB991958 actuator
testing cannot be used.

2004 Mitsubishi Endeavor LS
2004 BRAKES Traction Control, Active Skid Control System - Endeavor

10. Turn the wheel by hand and check the change in braking force when the brake
pedal is depressed. When using the braking force tester, depress the brake
pedal until the braking force is at the following values, and check that the
braking force changes to the brake drag force reading taken in step 2 when the
actuator is force-driven. The result should be as shown in the diagram above.
Fig. 244: Braking Force Specification

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
11. If the result of inspection is abnormal, repair according to the Diagnosis Table
below.

2004 Mitsubishi Endeavor LS
2004 BRAKES Traction Control, Active Skid Control System - Endeavor

Fig. 245: Identifying Diagnosis Table

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
12. After inspection, disconnect scan tool MB991958 immediately after turning the
ignition switch to the "LOCK" (OFF) position.
IN THE EVENT OF A DISCHARGED BATTERY If the engine is started using a booster cable when the battery is completely flat, and
the vehicle is then driven without waiting for the battery to be recharged, the engine
may misfire and it may not be possible to drive the vehicle. This is because the ABS
consumes a large amount of current when carrying out its initial checks. If this
happens, recharge the battery fully.
WARNING:If the ABS is not operating, the vehicle will be
unstable during braking, Do not drive the vehicle
with the TCL/ASC-ECU connector disconnected or
with the TCL/ASC not operating for any other
reason.

2004 Mitsubishi Endeavor LS
2004 BRAKES Traction Control, Active Skid Control System - Endeavor