2004 MITSUBISHI ENDEAVOR ECU

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 G and yaw rate 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 connector.
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: Re
pair the CAN bus lines
(Refer to HOW TO DIAGNOSE THE
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

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA
.
STEP 2. Using scan tool MB991958 read the diagnostic trouble code.
Check if a DTC, which relates to CAN communication-linked systems below,
is set.
Power train control module
DTC U1102: ABS-ECU time-out
Combination meter DTC 018: ABS-ECU time-out
Q: Is the DTC set?
YES: Go to Step 3.
NO: Go to Step 4.
STEP 3. 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 G and yaw rate 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 4.
STEP 4. Recheck for diagnostic trouble code.

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

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 G and yaw rate sensor and the
TCL/ASC-ECU (Refer to HOW TO COPE WITH INTERMITTENT
MALFUNCTIONS
).
NO: Replace G and yaw rate sensor and then go to Step 5.
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: The procedure is complete.
NO: Go to Step 1.
DTC U1108: METER CAN TIMEOUT/NOT EQUIPPED CIRCUIT OPERATION The TCL/ASC-ECU and the combination meter are connected each other via a CAUTION: If DTC U1108 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

CAN bus line. The ECU sends signal to the combination meter, and controls the
TCL/ASC indicator and TCL OFF indicator. TCL/ASC DTC SET CONDITIONS
Current trouble
Connector(s) or wiring harness in the CAN bus lines between the TCL/ASC-
ECU and the combination meter, the power supply system to the combination
meter, the combination meter 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 combination meter and the TCL/ASC-ECU,
and the power supply system to the combination meter. For diagnosis
procedures, refer to HOW TO TREAT PAST TROUBLE
).
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 combination meter
DIAGNOSIS Required Special Tools:
MB991958: Scan Tool (MUT-III Sub Assembly)
MB991824: Vehicle Communication Interface
(V.C.I.
) 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

DTC 014: Combination meter time-out
Q: Is the DTC set?
YES: Go to Step 4.
NO: Go to Step 5.
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 combination meter and the
TCL/ASC-ECU (Refer to HOW TO COPE WITH INTERMITTENT MALFUNCTIONS
).
NO: Replace combination meter 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 combination meter and the
TCL/ASC-ECU (Refer to HOW TO COPE WITH INTERMITTENT
MALFUNCTIONS
).

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

NO: Replace hydraulic unit (integrated with TCL/ASC-ECU) and then go
to Step 6.
STEP 6. 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: The procedure is complete.
NO: Go to Step 1.
DTC U1433: DYNAMIC RANGE ERROR TPS, DTC SET CONDITION This code is set when the MFI system sets either of DTC code Nos. P0222, P0223
or P2135. 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 Nos. P0222,
P0223 or P2135, and repair if necessary (Refer to HOW TO READ AND ERASE DIAGNOSTIC TROUBLE CODE
, ).
DIAGNOSTIC TROUBLE CODE PROCEDURES < STEERING WHEEL SENSOR > DTC C1551: HALL-IC OUTPUT VOLTAGE, DTC C1552: HALL-IC OUTPUT PATTERN, DTC C1553: OPTICAL
SENSOR, DTC C1554: SPEED SENSOR IS OUT OF RANGE, DTC C1555: STEERING ANGLE SNS. OUT OF
RANGE, DTC C1608: EEPROM FAILURE
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

CIRCUIT OPERATION
The steering wheel sensor is energized via the ignition switch, and
communicates the TCL/ASC-ECU via a CAN bus-line. The steering wheel sensor has a self-diagnosis function and a memory
function. If the diagnosis function finds a trouble, it sends these DTC codes to
the TCL/ASC-ECU. Then the ECU will illuminate the TCL/ASC indicator
light. At this time, the TCL/ASC-ECU sets DTC No. C1506 (Steering angle
sensor error).
TCL/ASC/ASC DTC SET CONDITIONS These diagnostic trouble codes will be set under the cases below. DTC C1551: HALL-IC OUTPUT VOLTAGE
The Hall cell sends incorrect voltage signal for at least one second.
DTC C1552: HALL-IC OUTPUT PATTERN
Invalid Hall cell pattern fluctuates at least once.
DTC C1553: OPTICAL SENSOR
The optical sensor output is invalid.
DTC C1554: SPEED SENSOR IS OUT OF RANGE
The sensor speed is -25°/10 ms or more.
DTC C1555: STEERING ANGLE SNS. OUT OF RANGE
The sensor is out of a predetermined operation range.
DTC C1608: EEPROM FAILURE
The sensor detects an EEPROM error. CAUTION: If these DTCs has been set, TCL/ASC-ECU related
DTC C1506 is also set. After these DTCs has been
diagnosed, don't forget to erase DTC C1506.

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

Code

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
6. Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is DTC C1551, C1552, C1553, C1554, C1555 or C1608 set?
YES: Replace steering wheel sensor.
NO: The procedure is complete.
DTC U1073: BUS OFF TROUBLE JUDGMENT This code is stored when the steering wheel sensor 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: CAUTION:
If DTC U1073 is set in the steering wheel sensor,
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: If DTC U1073 has been set, TCL/ASC-ECU related
DTC C1506 is also set. After DTC U1073 has been
diagnosed, don't forget to erase DTC C1506.

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