2004 MITSUBISHI ENDEAVOR ABS

Fig. 85: Checking ABS Sensor Connector D
-15 (Step 14)

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Q: Are TCL/ASC-ECU connector A-32, 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 TCL/ASC-ECU connector A-
32 (terminals 6 and 7) and rear left ABS sensor D-10 (terminals 1 and 2).
Then go to Step 16
.
STEP 15. Recheck for diagnostic trouble code.
Check again if the DTC is set.
1. Turn the ignition switch to the "ON" position.

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

Malfunction of the hydraulic unit (integrated with TCL/ASC-ECU)
Past trouble
Carry out diagnosis with particular emphasis on connector(s) or wiring harness
in the power supply circuit (terminal 11) to the TCL/ASC-ECU solenoid valve
or ground circuit (terminal 12). For diagnosis procedures, refer to HOW TO COPE WITH INTERMITTENT MALFUNCTIONS
).
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 Traction Control, Active Skid Control System - Endeavor

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA
.
4. Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is DTC C1226, C1231, C1236, C1241, C1246, C1251, C1256, C1261,
C1300, C1305, C1310 or C1315 set?
YES: Go to Step 3.
NO: The procedure is complete.
STEP 3. Measure the voltage at TCL/ASC-ECU connector A-32.
1. Disconnect the connector A-32, and connect special tool ABS Check
Harness (MB991952) to the wiring harness-side connector.
2. Turn the ignition switch to the "ON" position.
3. Measure the voltage between terminal 11 and ground. It should be
a
pproximatel
y 12 volts
(batter
y positive volta
ge). NOTE: Do not connect special tool ABS Check Harness
(MB991952) to the TCL/ASC-ECU.

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

Q: Is TCL/ASC-ECU connector A-32 damaged?
YES: Repair or replace the damaged component(s). Then go to Step 5.
NO: An open or short circuit may be present in the solenoid valve power
supply circuit. Repair the wiring harness between TCL/ASC-ECU
connector A-32 terminal 11 and fusible link No. 3. Then go to Step 4.
STEP 5. Measure the resistance at TCL/ASC-ECU connector A-32.
1. Disconnect the connector A-32, and connect special tool ABS Check
Harness (MB991952) to the wiring harness-side connector.
2. Measure the resistance between terminal 12 and ground. It should be 2
ohms or less. NOTE: Do not connect special tool ABS Check Harness
(MB991952) to the TCL/ASC-ECU.

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

Connector Identificatio
n
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
CIRCUIT OPERATION
The TCL/ASC-ECU contains the power supply circuit (terminal 33) for the
pump motor. The pump motor is energized by the motor relay, which is
incorporated in the TCL/ASC-ECU. The motor relay, which is incorporated in the TCL/ASC-ECU, is always off
unless the motor solenoid valve check is activated when the vehicle is started. The TCL/ASC-ECU activates the pump motor by turning on the ECU built-in
motor relay when the ABS is working.
TCL/ASC DTC SET CONDITIONS These diagnostic trouble codes will be set under the cases below. DTC C1266: MOTOR SYSTEM (SEIZURE)
If the TCL/ASC-ECU determines that the pump motor is not running smoothly
(i.e. motor seizure) after the motor relay is turned off, this DTC will be set.
DTC C1273: MOTOR RELAY PROBLEM (STUCK OFF)
If the TCL/ASC-ECU determines that the motor is not running after the motor
relay is turned on, the ECU determines that the motor relay is stuck off, and
sets this DTC.
DTC C1274: MOTOR RELAY PROBLEM (STUCK ON)
If the TCL/ASC-ECU determines that the motor is running after the motor
relay is turned off, the ECU determines that the motor relay is stuck on, and
sets this DTC.
TROUBLESHOOTING HINTS (The most likely causes for these DTCs are to set are:)
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 Traction Control, Active Skid Control System - Endeavor

Current trouble
Damaged wiring harness or connector Malfunction of the hydraulic unit (integrated with TCL/ASC-ECU)
Past trouble
Carry out diagnosis with particular emphasis on connector(s) or wiring harness
in the power supply circuit (terminal 33) to the TCL/ASC-ECU motor or
ground circuit (terminal 34). For diagnosis procedures, refer to HOW TO USE TROUBLESHOOTING/INSPECTION SERVICE POINTS
.
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. 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 Traction Control, Active Skid Control System - Endeavor

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA
.
6. Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is DTC C1266, C1273 or C1274 set?
YES: Go to Step 3.
NO: The procedure is complete.
STEP 3. Measure the voltage at TCL/ASC-ECU connector A-32.
1. Disconnect the connector A-32, and connect special tool ABS Check
Harness (MB991952) to the wiring harness-side connector.
2. Turn the ignition switch to the "ON" position.
3. Measure the voltage between terminal 33 and ground. It should be
a
pproximatel
y 12 volts
(batter
y positive volta
ge). NOTE: Do not connect special tool ABS Check Harness
(MB991952) to the TCL/ASC-ECU.

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

Q: Is TCL/ASC-ECU connector A-32 damaged?
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 TCL/ASC-ECU
connector A-32 terminal 33 and fusible link No. 3. Then go to Step 8.
STEP 5. Measure the resistance at TCL/ASC-ECU connector A-32.
1. Disconnect the connector A-32, and connect special tool ABS Check
Harness (MB991952) to the wiring harness-side connector.
2. Measure the resistance between terminal 34 and ground. It should be 2
ohms or less. NOTE: Do not connect special tool ABS Check Harness
(MB991952) to the TCL/ASC-ECU.

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