Page 220 of 3870
Q: Is battery positive voltage (approximately 12 volts) present?
YES: Go to Step 3 .
NO: Go to Step 2.
STEP 2. Check the following connectors.
AB
S-ECU connector A-02
2004 Mitsubishi Endeavor LS
2004 BRAKES Anti-Lock Braking System (ABS) - Endeavor
Page 221 of 3870
Fig. 128: Checking 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 224 of 3870
Fig. 131: Checking Ignition Switch Connector C
-308
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Check the connectors, for loose, corroded or damaged terminals, or terminals
pushed back in the connector.
Q: Are the connectors and terminals in good condition?
YES: An open or short circuit may be present in the power supply line to
the ABS-ECU. Repair the wiring harness between ABS-ECU connector
A-02 terminal 20 and ignition switch connector C-308 terminal 4. Then go
to Ste
p 8 .
2004 Mitsubishi Endeavor LS
2004 BRAKES Anti-Lock Braking System (ABS) - Endeavor
Page 225 of 3870
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
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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)?
2004 Mitsubishi Endeavor LS
2004 BRAKES Anti-Lock Braking System (ABS) - Endeavor
