2004 MITSUBISHI ENDEAVOR diagnosis

2. Turn the ignition switch to the "ON" position.
3. Check for MFI system diagnostic trouble code. (Refer to HOW TO
READ AND ERASE DIAGNOSTIC TROUBLE CODE
).
4. Turn the ignition switch to the "LOCK" (OFF) position.
5. Disconnect scan tool MB991958.
Q: Is any DTC set?
YES: Repair the MFI control system. (Refer to DIAGNOSTIC TROUBLE
CODE CHART
). Then go to Step 6 .
NO: Go to Step 2.
STEP 2. Using scan tool MB991958, diagnose the CAN bus line.
1. Connect scan tool MB991958 to the data link connector. (Refer to
TRACTION CONTROL SYSTEM (TCL) DIAGNOSIS
). 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 System (TCL) - Endeavor

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA
.
2. Turn the ignition switch to the "ON" position.
3. Diagnose the CAN bus line. (Refer to PRECAUTONS ON HOW TO
REPAIR THE CAN BUS LINES
).
4. Turn the ignition switch to the "LOCK" (OFF) position.
5. Disconnect scan tool MB991958.
Q: Is the CAN bus line found to be normal?
YES: Go to Step 3.
NO: Repair the CAN bus line. (Refer to MULTIPORT FUEL INJECTION
(MFI) DIAGNOSIS
). Then go to Step 6 .
STEP 3. Using scan tool MB991958, read the diagnostic trouble code.
1. Connect scan tool MB991958 to the data link connector. (Refer to
TRACTION CONTROL SYSTEM (TCL) DIAGNOSIS
). 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 System (TCL) - Endeavor

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA
.
2. Turn the ignition switch to the "ON" position.
3. Check if a DTC, which relates to CAN communication-linked systems
below, is set. A/C-ECU
DTC U1120: Failure Information on Power train control module
(related to engine)
4. Turn the ignition switch to the "LOCK" (OFF) position.
5. Disconnect scan tool MB991958.
Q: Is DTC U1120 set?
YES: Go to Step 4.
NO: Go to Step 5 .
STEP 4. Recheck for diagnostic trouble code.
Check again if the DTC is set.
1. Connect scan tool MB991958 to the data link connector. (Refer to
TRACTION CONTROL SYSTEM (TCL) DIAGNOSIS
). 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 System (TCL) - Endeavor

2. Turn the ignition switch to the "ON" position.
3. Erase the DTC. (Refer to TRACTION CONTROL SYSTEM (TCL)
DIAGNOSIS
).
4. Turn the ignition switch to the "LOCK" (OFF) position.
5. Turn the ignition switch to the "ON" position.
6. Check if the DTC is set.
7. Turn the ignition switch to the "LOCK" (OFF) position.
8. Disconnect scan tool MB991958.
Q: Is DTC U1120 set?
YES: Replace the PCM. [Refer to POWERTRAIN CONTROL MODULE
(PCM)
]. Then go to Step 6 .
NO: It can be assumed that this malfunction is intermittent. (Refer to HOW
TO COPE WITH INTERMITTENT MALFUNCTIONS
).
STEP 5. Recheck for diagnostic trouble code.
Check again if the DTC is set.
1. Connect scan tool MB991958 to the data link connector. (Refer to
TRACTION CONTROL SYSTEM (TCL) DIAGNOSIS
). 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 System (TCL) - Endeavor

2. Turn the ignition switch to the "ON" position.
3. Erase the DTC. (Refer to TRACTION CONTROL SYSTEM (TCL)
DIAGNOSIS
).
4. Turn the ignition switch to the "LOCK" (OFF) position.
5. Turn the ignition switch to the "ON" position.
6. Check if the DTC is set.
7. Turn the ignition switch to the "LOCK" (OFF) position.
8. Disconnect scan tool MB991958.
Q: Is DTC U1120 set?
YES: Replace the hydraulic unit (integrated with ABS/TCL-ECU < FWD > or
TCL/ASC-ECU < AWD >). (Refer to HYDRAULIC UNIT
). 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. Connect scan tool MB991958 to the data link connector. (Refer to
TRACTION CONTROL SYSTEM (TCL) DIAGNOSIS
). 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 System (TCL) - Endeavor

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA
.
2. Turn the ignition switch to the "ON" position.
3. Erase the DTC. (Refer to TRACTION CONTROL SYSTEM (TCL)
DIAGNOSIS
).
4. Turn the ignition switch to the "LOCK" (OFF) position.
5. Turn the ignition switch to the "ON" position.
6. Check if the DTC is set.
7. Turn the ignition switch to the "LOCK" (OFF) position.
8. Disconnect scan tool MB991958.
Q: Is DTC U1120 set?
YES: Return to Step 1 .
NO: The procedure is complete.
DTC U1400: Dynamic range error APS1 DTC SET CONDITION This code is set when the MFI system sets either of DTC code Nos. P2138, P2122
or P2123. TROUBLESHOOTING HINTS (THE MOST LIKELY CAUSES FOR THESE DTCS ARE TO SET ARE:)
Malfunction of the MFI system
DIAGNOSIS Check whether the MFI system sets either of diagnostic trouble code P2138, P2122
or P2123, and repair if necessary. (Refer to HOW TO READ AND ERASE DIAGNOSTIC TROUBLE CODE
).
SYMPTOM CHART
2004 Mitsubishi Endeavor LS
2004 BRAKES Traction Control System (TCL) - Endeavor

CIRCUIT OPERATION
ABS/TCL-ECU < FWD > or TCL/ASC-ECU < AWD > send the illumination
signal of "TCL OFF" indicator light and TCL work indicator light to the
combination meter via the CAN communication. ABS/TCL-ECU < FWD > or TCL/ASC-ECU < AWD > operates the "TCL
OFF" indicator light and the TCL work indicator light for three seconds after
the ignition switch is turned "ON" position for bulb check.
COMMENT This may be caused by faults in the CAN bus line, the combination meter or the
ABS/TCL-ECU < FWD > or TCL/ASC-ECU < AWD >. TROUBLESHOOTING HINTS
Malfunction of the combination meter
Damaged harness, connector Malfunction of the ABS/TCL-ECU < FWD > or TCL/ASC-ECU < AWD
>
DIAGNOSIS
Required Special Tool:
MB991958: Scan tool (MUT-III sub Assembly)
MB991824: 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.
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 System (TCL) - Endeavor

1. Connect scan tool MB991958 to the data link connector. (Refer to
TRACTION CONTROL SYSTEM (TCL) DIAGNOSIS
).

2004 Mitsubishi Endeavor LS
2004 BRAKES Traction Control System (TCL) - Endeavor