Page 129 of 3870
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.
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 CAN bus line found to be normal?
YES: Go to Step 3 .
NO: Repair the CAN bus line (Refer to TCL/ASC DIAGNOSIS , or
DIAGNOSIS < VEHICLES WITHOUT ADVANCED AIR BAG
).
Then go to Step 2.
STEP 2. Recheck for diagnostic trouble code.
1. Turn the ignition switch to the "ON" position.
2. Erase the DTC.
3. Turn the ignition switch to the "LOCK" (OFF) position.
4. Turn the ignition switch to the "ON" position.
5. Check if the DTC is set. CAUTION: To prevent damage to scan tool MB991958,
always turn the ignition switch to the
"LOCK" (OFF) position before connecting or
disconnecting scan tool MB991958.
2004 Mitsubishi Endeavor LS
2004 BRAKES Anti-Lock Braking System (ABS) - Endeavor
Page 130 of 3870
Fig. 77: Rechecking For Diagnostic Trouble Code
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y of MITSUBISHI MOTOR SALES OF AMERICA
.
2004 Mitsubishi Endeavor LS
2004 BRAKES Anti-Lock Braking System (ABS) - Endeavor
Page 131 of 3870
6. Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is DTC C1278 or C1279 set?
YES: Go to Step 3.
NO: The procedure is complete.
STEP 3. Measure the voltage 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. Turn the ignition switch to the "ON" position.
3. Measure the voltage between terminal 1 and ground. It should be
a
pproximatel
y 12 volts
(batter
y positive volta
ge). 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
Page 132 of 3870
Fig. 78: Measuring Voltage 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 133 of 3870
Q: Is the voltage approximately 12 volts (battery positive voltage)?
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
Page 134 of 3870
Fig. 79: Checking ABS
-ECU Connector A
-02
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Q: Is ABS-ECU connector A-02 damaged?
2004 Mitsubishi Endeavor LS
2004 BRAKES Anti-Lock Braking System (ABS) - Endeavor
Page 135 of 3870
YES: Repair or replace the damaged component(s). Then go to Step 8 .
NO: An open or short circuit may be present in the solenoid valve power
supply circuit. Repair the wiring harness between ABS-ECU connector A-
02 terminal 1 and fusible link No.3. Then go to Step 8 .
STEP 5. 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 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
Page 136 of 3870
Fig. 80: 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