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NO: Repair or replace the damaged component(s). Then go to Step 8 .
STEP 3. Measure the resistance at ABS-ECU connector A-02.
1. Disconnect the connector A-02, and connect special tool ABS Check
Harness (MB991970) to the wiring harness-side connector.
2. Measure the resistance between terminal 2, 18 and ground.
It should be 2 ohms or less.NOTE: Do not connect special tool ABS Check Harness
(MB991970) to the ABS-ECU.
2004 Mitsubishi Endeavor LS
2004 BRAKES Anti-Lock Braking System (ABS) - Endeavor
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Fig. 132: Measuring Resistance At ABS
-ECU Connector A
-02
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
2004 Mitsubishi Endeavor LS
2004 BRAKES Anti-Lock Braking System (ABS) - Endeavor
Page 227 of 3870
Q: Is the measured resistance 2 ohms or less?
YES: Go to Step 5 .
NO: Go to Step 4.
STEP 4. Check ABS-ECU connector A-02 for loose, corroded or damaged
terminals, or terminals
pushed back in the connector
.
2004 Mitsubishi Endeavor LS
2004 BRAKES Anti-Lock Braking System (ABS) - Endeavor
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Fig. 133: Checking ABS
-ECU Connector A
-02
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Q: Is ABS-ECU connector A-02 dama
ged?
2004 Mitsubishi Endeavor LS
2004 BRAKES Anti-Lock Braking System (ABS) - Endeavor
Page 229 of 3870

YES: Repair or replace the damaged components(s). Then go to Step 8 .
NO: An open circuit may be present in the ground circuit. Repair the
wiring harness between ABS-ECU connector A-02 terminals 2, 18 and the
body ground. Then go to Step 8 .
STEP 5. Check the battery.
Check the battery (Refer to BATTERY TEST
).
Q: Is the battery in good condition?
YES: Go to Step 6.
NO: Charge or replace the battery. Then go to Step 8 .
STEP 6. Check the charging system.
Check the charging system (Refer to GENERATORS & REGULATORS
).
Q: Is the charging system in good condition?
YES: Go to Step 7.
NO: Repair or replace the charging system component(s).
Then go to Step 8 .
STEP 7. Retest the system.
Q: Can the ABS-ECU communicate with the scan tool (MUT-III Sub
Assembly)?
YES: It can be assumed that this malfunction is intermittent. Refer to
HOW TO COPE WITH INTERMITTENT MALFUNCTIONS
.
NO: Replace the ABS-ECU. Then go to Step 8.
STEP 8. Retest the system.
Q: Can the ABS-ECU communicate with the scan tool (MUT-III Sub
Assembly)?
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2004 BRAKES Anti-Lock Braking System (ABS) - Endeavor
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YES: The procedure is complete.
NO: Go to Step 1 .
INSPECTION PROCEDURE 3: WHEN THE IGNITION KEY IS TURNED TO ON (ENGINE STOPPED), THE
BRAKE/ABS WARNING LIGHT DOES NOT ILLUMINATE, INSPECTION PROCEDURE 4: THE BRAKE/ABS
WARNING LIGHT REMAINS ILLUMINATED AFTER THE ENGINE IS STARTED
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2004 BRAKES Anti-Lock Braking System (ABS) - Endeavor
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2004 Mitsubishi Endeavor LS
2004 BRAKES Anti-Lock Braking System (ABS) - Endeavor
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Fig. 134: EBO And ABS Warning Light Circuit Diagram
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Fig. 135: Identifying Connectors: A
-02, C
-04, C
-31, C
-101, C
-102, C
-103, C
-
211, C
-215
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
TECHNICAL DESCRIPTION (COMMENT)
The ABS-ECU sends the ABS warning light and the brake warning light
signals to the combination meter via the CAN communication. This may be caused by faults in the CAN bus line, the combination meter or
the ABS-ECU.
TROUBLESHOOTING HINTS (THE MOST LIKELY CAUSES FOR THIS CASE:)
Damaged wiring harness or connector Combination meter defect Malfunction of the hydraulic unit (integrated with ABS-ECU)
DIAGNOSIS
2004 Mitsubishi Endeavor LS
2004 BRAKES Anti-Lock Braking System (ABS) - Endeavor