2004 MITSUBISHI ENDEAVOR ECU

6. Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is DTC C1860 or C1861 set?
YES: Replace the hydraulic unit (integrated with TCL/ASC-ECU). Then
go to Step 8.
NO: It can be assumed that this malfunction is intermittent. Refer to
HOW TO COPE WITH INTERMITTENT MALFUNCTIONS
.
STEP 8. 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.
6. Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is DTC C1860 or C1861 set?
YES: Go to Step 1.
NO: The
procedure is com
plete.

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

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA
.
DTC U1073: BUS OFF TROUBLE JUDGMENT This code is stored when the TCL/ASC-ECU has ceased the CAN communication
(bus off). Then, if a penalty mode is entered after approximately five minutes,
regular data transmission will be cancelled. TROUBLESHOOTING HINTS (The most likely causes for these DTCs are to set are:)
Damaged wiring harness or connector 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 DTC U1073 is set in the TCL/ASC-ECU, always
diagnose the CAN main bus line. If there is any
fault in the CAN bus lines, an incorrect DTC may
be set. Whenever the ECU is replaced, ensure that the
communication circuit is normal.
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 U1073 set?
YES: Replace the hydraulic unit (integrated with TCL/ASC-ECU). Then
go to Step 3.
NO: It can be assumed that this malfunction is intermittent. Refer to
HOW TO COPE WITH INTERMITTENT MALFUNCTIONS
.
STEP 3. 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 U1073 set?
YES: Go to Step 1.
NO: The procedure is complete.
DTC U1104: SAS CAN TIMEOUT/NOT EQUIPPED 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 information to the
ECU. TCL/ASC DTC SET CONDITIONS
Current trouble
Connector(s) or wiring harness in the CAN bus lines between the TCL/ASC-
ECU and the steering wheel sensor, the power supply system to the steering
wheel sensor, the steering wheel sensor itself, or the TCL/ASC-ECU may be
defective.
Past trouble
Carry out diagnosis with particular emphasis on connector(s) or wiring harness
in the CAN bus lines between the steering wheel sensor and the TCL/ASC-
ECU, and the power supply system to the steering wheel sensor. For diagnosis
procedures, refer to "HOW TO USE TROUBLESHOOTING/INSPECTION SERVICE POINTS
). CAUTION: If DTC U1104 is set in the TCL/ASC-ECU, always
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

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) Malfunction of the steering wheel sensor
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.
Use scan tool MB991958 to diagnose the CAN bus lines.
1. Connect scan tool MB991958 to the data link connec
tor. NOTE: For a past trouble, you may not find it by the MUT-III
CAN bus diagnostics even if there is any failure in CAN
bus lines. In this case, Refer to HOW TO COPE WITH
INTERMITTENT MALFUNCTIONS
). and check the CAN
bus lines. You can narrow down the possible cause of
the trouble by referring to the DTC, which is set
regarding the CAN communication-linked ECUs (Refer
to HOW TO DIAGNOSE THE CAN BUS LINE
).

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

2. Turn the ignition switch to "ON" position.
3. Diagnose the CAN bus line.
Q: Is the check result satisfactory?
YES: Go to Step 2
NO: Repair the CAN bus lines (Refer to DIAGNOSTIC TROUBLE
CODE DIAGNOSIS
or DIAGNOSIS < VEHICLES WITHOUT
ADVANCED AIR BAG
). On completion, go to Step 6.
STEP 2. Using scan tool MB991958, read the steering wheel sensor
diagnostic trouble code.
Check if a steering wheel sensor DTC is set.
Q: Is the DTC set?
YES: Diagnose the steering wheel sensor by referring to DIAGNOSTIC
TROUBLE CODE CHART
.
NO: Go to Step 3.
STEP 3. Using scan tool MB991958 read any of the diagnostic trouble
code.
Check if a DTC, which relates to CAN communication-linked systems below,
is set.
Power train control module
DTC U1100: ABS-ECU time-out
Combination meter DTC 011: ABS-ECU time-out
Q: Is the DTC set?
YES: Go to Step 4. NO:
Go to Step
5.

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

STEP 4. Recheck for diagnostic trouble code.
Recheck if the DTC is set.
1. Erase the DTC.
2. Turn the ignition switch to "ON" position.
3. Check if the DTC is set.
Q: Is the check result satisfactory?
YES: A poor connection, open circuit or other intermittent malfunction is
present in the CAN bus lines between the steering wheel sensor and the
TCL/ASC-ECU (Refer to HOW TO COPE WITH INTERMITTENT
MALFUNCTIONS
).
NO: Replace hydraulic unit (integrated with TCL/ASC-ECU) and then go
to Step 6.
STEP 5. Recheck for diagnostic trouble code.
Recheck if the DTC is set.
1. Erase the DTC.
2. Turn the ignition switch to "ON" Position.
3. Check if the DTC is set.
Q: Is the check result satisfactory?
YES: A poor connection, open circuit or other intermittent malfunction is
present in the CAN bus lines between the steering wheel sensor and the
TCL/ASC-ECU (Refer to HOW TO COPE WITH INTERMITTENT
MALFUNCTIONS
).
NO: Replace steering wheel sensor and then go to Step 6.
STEP 6. Recheck for diagnostic trouble code.
Recheck if the DTC is set.
1. Erase the DTC.

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

2. Turn the ignition switch to "ON" position.
3. Check if the DTC is set.
Q: Is the check result satisfactory?
YES: The procedure is complete.
NO: Go to Step 1.
DTC U1105: YR/G CAN TIMEOUT/NOT EQUIPPED CIRCUIT OPERATION The TCL/ASC-ECU and the G and yaw rate sensor are connected each other via
CAN bus line, and the sensor sends longitudinal and lateral acceleration
information to the ECU. TCL/ASC DTC SET CONDITIONS
Current trouble
Connector(s) or wiring harness in the CAN bus lines between the TCL/ASC-
ECU and the G and yaw rate sensor, the power supply system to the G and yaw
rate sensor, the G and yaw rate sensor itself, or the TCL/ASC-ECU may be
defective.
Past trouble
Carry out diagnosis with particular emphasis on connector(s) or wiring harness
in the CAN bus lines between the G and yaw rate sensor and the TCL/ASC-
ECU, and the power supply system to the G and yaw rate sensor. For diagnosis
procedures, refer to HOW TO COPE WITH INTERMITTENT MALFUNCTIONS
). CAUTION: If DTC U1105 is set in the TCL/ASC-ECU, always
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