2004 MITSUBISHI ENDEAVOR ECU

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA
.
6. Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is DTC C1393 set?
YES: Initialize the G and yaw rate sensor (Refer to G AND YAW RATE
SENSOR
).
NO: The procedure is complete.
DTC C1394: INCOMP. LEARN NEUTRAL (SAS) TCL/ASC DTC SET CONDITIONS This DTC is set if the steering sensor has not been initialized. TROUBLESHOOTING HINTS (The most likely causes for these DTCs are to set are:)
The CAN bus line is defective. Malfunction of the hydraulic unit (integrated with TCL/ASC-ECU)
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
STEP 1. Using scan tool MB991958, diagnose the CAN bus line.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.
CAUTION: Whenever the ECU is replaced, ensure that the CAN
bus lines are normal.

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 C1394 set?
YES: Initialize the steering sensor (Refer to STEERING WHEEL
SENSOR
).
NO: The procedure is complete.
DTC C1395: INCOMP. BRAKE FLUID FILLING TCL/ASC DTC SET CONDITIONS This DTC is set if air-bleeding has not been performed. TROUBLESHOOTING HINTS (The most likely causes for these DTCs are to set are:)
The CAN bus line is defective. Malfunction of the hydraulic unit (integrated with TCL/ASC-ECU)
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
STEP 1. Using scan tool MB991958, diagnose the CAN bus line. 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.
CAUTION: Whenever the ECU is replaced, ensure that the CAN
bus lines are normal.
CAUTION: To prevent damage to scan tool MB991958,

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

CIRCUIT OPERATION
The TCL/ASC-ECU and the steering wheel sensor are connected each other
via a CAN bus line, and the sensor sends the steering wheel angle and angular
velocity information to the ECU.
TCL/ASC DTC SET CONDITIONS
These diagnostic trouble codes will be set under the cases below.
DTC C1505: STEERING ANGLE SENSOR (SIGNAL SEIZURE OR ABNORMAL NEUTRAL POINT)
The steering wheel sensor output value does not fluctuate for more than 20
seconds although the vehicle speed is 15 km/h or more and the G and yaw rate
sensor output value is fluctuating. The neutral point has been +/- 180 deg or more and the vehicle speed remains
10 km/h or more for at least one second.
DTC C1506: STEERING ANGLE SENSOR (ABNORMAL STEERING ANGLE)
The steering wheel sensor sets the DTC.
TROUBLESHOOTING HINTS (The most likely causes for these DTCs are to set are:)
Current trouble
Damaged wiring harness or connector. Malfunction of the steering wheel sensor Malfunction of the hydraulic unit (integrated with TCL/ASC-ECU)
Past trouble Carry out diagnosis with particular emphasis on connector(s) or wiring harness
between the TCL/ASC-ECU and the steering sensor. For diagnosis procedures,
refer to HOW TO TREAT PAST TROUBLE
and (Refer to HOW TO USE
TROUBLESHOOTING/INSPECTION SERVICE POINTS
).
DIAGNOSIS
sensor first when the steering wheel sensor-related
DTC is set.

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

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 C1505 set?
YES: Replace the hydraulic unit (integrated with TCL/ASC-ECU). Then
go to Step 7.
NO: The procedure is complete.
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 C1505 set?
YES: Replace the hydraulic unit (integrated with TCL/ASC-ECU). Then
go to Step 7.
NO: It can be assumed that this malfunction is intermittent. Refer to
HOW TO COPE WITH INTERMITTENT MALFUNCTIONS
.
STEP 7. 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

Fig. 171: Rechecking For Diagnostic Trouble Code

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
6. Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is DTC C1505 set?
YES: Go to Step 1.
NO: The procedure is complete.
DTC C1607: TROUBLE IN TCL/ASC-ECU
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.
CAUTION: Whenever the ECU is replaced, ensure that the CAN
bus lines are normal.

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

TCL/ASC DTC SET CONDITION
S
The TCL/ASC-ECU always monitors itself while the system is working. If the ECU
detects any faults, it will set this DTC. TROUBLESHOOTING HINTS (The most likely causes for these DTCs are to set are:)
Malfunction of the hydraulic unit (integrated with TCL/ASC-ECU)
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
STEP 1. Using scan tool MB991958, diagnose the CAN bus line.
1. Connect scan tool MB991958 to the data link connector.
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 2.
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. 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 C1607 set?
YES: Replace the hydraulic unit (integrated with TCL/ASC-ECU).
NO: The procedure is complete.
DTC C1860: POWER SUPPLY HIGH VOLTAGE, DTC C1861: POWER SUPPLY LOW VOLTAGE
2004 Mitsubishi Endeavor LS
2004 BRAKES Traction Control, Active Skid Control System - Endeavor