2004 MITSUBISHI ENDEAVOR ECU

Fig. 51: Checking ABS Sensor Connector D
-10
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Q: Are ABS-ECU connector A-02, intermediate connector C-32 and ABS
sensor < Rear: RH > connector D-10 damaged?
YES: Repair or replace the damaged component(s). Then go to Step 16 .
NO: Open or short circuit may be present in the rear right ABS sensor
circuit. Repair the wiring harness between ABS-ECU connector A-02
(terminals 11 and 17) and rear right ABS sensor D-10 (terminals 1 and 2).
Then go to Step 16 .
STEP 14. Check ABS-ECU connector A-02, intermediate connector C-32
and ABS sensor < rear: LH > connector D-15 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

Fig. 52: 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

Fig. 54: Checking ABS Sensor Connector D
-15
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Q: Are ABS-ECU connector A-02, intermediate connector C-32 and ABS
sensor < rear: LH > connector D-15 damaged?
YES: Repair or replace the damaged component(s). Then go to Step 16 .
NO: Open or short circuit may be present in the rear left ABS sensor
circuit. Repair the wiring harness between ABS-ECU connector A-02
(terminals 27 and 28) and rear left ABS sensor D-10 (terminals 2 and 1).
Then go to Step 16 .
STEP 15. Recheck for diagnostic trouble code.
Check again if the DTC is set.
1. Turn the i
gnition switch to the "ON"
position.

2004 Mitsubishi Endeavor LS
2004 BRAKES Anti-Lock Braking System (ABS) - Endeavor

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA
.
6. Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is DTC C1201, C1206, C1211 or C1216 set?
YES: Replace the hydraulic unit (integrated with ABS-ECU). Then go to
Step 16.
NO: It can be assumed that this malfunction is intermittent. Refer to
HOW TO COPE WITH INTERMITTENT MALFUNCTIONS
.
STEP 16. Recheck for diagnostic trouble code.
Check again if the DTC is set.
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.

2004 Mitsubishi Endeavor LS
2004 BRAKES Anti-Lock Braking System (ABS) - Endeavor

Fig. 57: Solenoid Valve And Motor Power Supply Circuit Diagram & Connector Identification

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
CIRCUIT OPERATION
The ABS-ECU contains the power supply circuit (terminal 1) for the solenoid
valve. The solenoid valve is energized by the valve relay, which is
incorporated in the ABS-ECU. The valve relay, which is incorporated in the ABS-ECU, is always energizing
the solenoid valve unless the initial check is in progress when the ignition
switch is turned on. The ABS-ECU activates the solenoid valve by turning on its driving transistor.
ABS DTC SET CONDITIONS These diagnostic trouble codes will be set under the cases below.
The solenoid valve is not energized even after the ABS-ECU has turned on the
driving transistor (Open circuit is present in the power supply circuit to the
ABS-ECU solenoid valve, or the valve relay has failed). The solenoid valve is not energized even after the ABS-ECU has turned on the
driving transistor (Open circuit is present in the solenoid valve circuit inside
the ABS-ECU, or the valve relay has failed). After the ABS-ECU has turned off the driving transistor, the solenoid valve
still remains energized (short in the solenoid valve circuit). When a solenoid valve failure is detected
TROUBLESHOOTING HINTS (THE MOST LIKELY CAUSES FOR THESE DTCS ARE TO SET ARE:)
Current trouble
Dama
ged wirin
g harness or connector CAUTION: If there is any problem in the CAN bus lines, an
incorrect diagnostic trouble code may be set. Prior to
this diagnosis, diagnose the CAN bus lines.

2004 Mitsubishi Endeavor LS
2004 BRAKES Anti-Lock Braking System (ABS) - Endeavor

Malfunction of the hydraulic unit (integrated with ABS-ECU)
PAST TROUBLE
Carry out diagnosis with particular emphasis on connector(s) or wiring harness
in the power supply circuit (terminal 1) to the ABS-ECU solenoid valve or
ground circuit (terminal 18). For diagnosis procedures, refer to HOW TO TREAT PAST TROUBLE
.
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
MB991970: ABS Check Harness
STEP 1. Using scan tool MB991958, diagnose the CAN bus line.
1. Connect scan tool MB991958 to the data link connec
tor. 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

4. Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is DTC C1226, C1231, C1236, C1241, C1246, C1251, C1256 or C1261
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
approximately 12 volts (battery positive voltage). 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

Fig. 60: 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