2004 MITSUBISHI ENDEAVOR ignition

1. Connect scan tool MB991958 to the data link connec
tor. 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
.
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 DIAGNOSTIC TROUBLE
CODE 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 Traction Control, Active Skid Control System - Endeavor

6. Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is DTC C1223 set?
YES: Go to Step 3.
NO: The procedure is complete.
STEP 3. Using scan tool MB991958, check data list items 30: Straight G
sensor, 31: Lateral G sensor and 33: Yaw rate G sensor.
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

2. Turn the ignition switch to the "ON" position.
3. Set scan tool MB991958 to data reading mode for item 30: Straight G
sensor, item 31: Lateral G sensor and item 33: Yaw rate G sensor.
Item 30: Straight G sensor
Acceleration should change within the range of -9.8 -9.8 m/s
2
during running.
Item 31: Lateral G sensor
Acceleration should change within the range of -9.8 -9.8 m/s
2
during running.
Item 33: Yaw late sensor
Angular velocity should change within the range of -50 -50 deg/s
during running.
Q: Does the G and yaw rate sensor output correct acceleration and
angular velocity?
YES: Go to Step 5.
NO: Go to Step 4.
STEP 4. Recheck for diagnostic trouble code after the G and yaw rate
sensor is replaced.
Replace the G and yaw rate sensor, and check whether DTC C1223 is reset.
1. Replace the G and yaw rate sensor.
2. 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
.
3. Turn the ignition switch to the "ON" position.
4. Erase the DTC.
5. Turn the ignition switch to the "LOCK" (OFF) position.
6. Turn the ignition switch to the "ON" position.
7. Check if the DTC is set.
8. Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is DTC C1223 set?
YES: Replace the hydraulic unit (integrated with TCL/ASC-ECU). Then
go to Step 6.
NO: The procedure is complete.
STEP 5. 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 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 C1223 set?
YES: Replace the hydraulic unit (integrated with TCL/ASC-ECU). Then
go to Step 6.
NO: It can be assumed that this malfunction is intermittent. Refer to
HOW TO COPE WITH INTERMITTENT MALFUNCTIONS
.
STEP 6. 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 Traction Control, Active Skid Control System - Endeavor

6. Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is DTC C1223 set?
YES: Go to Step 1.
NO: The procedure is complete.
DTC C1226: FR INLET VALVE, DTC C1231: FR OUTLET VALVE, DTC C1236: FL INLET VALVE, DTC C1241:
FL OUTLET VALVE, DTC C1246: RR INLET VALVE, DTC C1251: RR OUTLET VALVE, DTC C1256: RL INLET
VALVE, DTC C1261: RL OUTLET VALVE, DTC C1300: FR CUT VALVE, DTC C1305: FR SUCTION VALVE,
DTC C1310: FL CUT VALVE, DTC C1315: FL SUCTION VALVE
2004 Mitsubishi Endeavor LS
2004 BRAKES Traction Control, Active Skid Control System - Endeavor

Fig. 96: Solenoid Valve And Motor Power Supply Circuit Diagram & Connector Identification

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
CIRCUIT OPERATION
The TCL/ASC-ECU contains the power supply circuit (terminal 11) for the
solenoid valve. The solenoid valve is energized by the valve relay, which i
incorporated in the TCL/ASC-ECU. The valve relay, which is incorporated in the TCL/ASC-ECU, is always
energizing the solenoid valve unless the initial check is in progress when the
ignition switch is turned on. The TCL/ASC-ECU activates the solenoid valve by turning on its driving
transistor.
TCL/ASC DTC SET CONDITIONS These diagnostic trouble codes will be set under the cases below.
The solenoid valve is not energized even after the TCL/ASC-ECU has turned
on the driving transistor (Open circuit is present in the power supply circuit to
the TCL/ASC-ECU solenoid valve, or the valve relay has failed). The solenoid valve is not energized even after the TCL/ASC-ECU has turned
on the driving transistor (Open circuit is present in the solenoid valve circuit
inside the TCL/ASC-ECU, or the valve relay has failed). After the TCL/ASC-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 Traction Control, Active Skid Control System - Endeavor