power control module MITSUBISHI ENDEAVOR 2004 Service User Guide

Fig. 41: Connecting Scan Tool To Data Link Connector

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
2. Turn the ignition switch to the "ON" position.
3. Set scan tool MB991958 to read the diagnostic trouble codes.
4. Turn the ignition switch to the "LOCK" (OFF) position.
5. Disconnect scan tool MB991958.
Q: Is DTC 15 set?
YES : Replace the PCM. [Refer to POWERTRAIN CONTROL
MODULE (PCM)
]. Then go to Step 18.
NO : It can be assumed that this malfunction is intermittent. (Refer to
HOW TO COPE WITH INTERMITTENT MALFUNCTIONS
).
Step 18. Using scan tool MB991958, read the diagnostic trouble code.
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 BODY & ACCESSORIES Auto, Cruise Control System - Endeavor

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA
.
2. Turn the ignition switch to the "ON" position.
3. Set scan tool MB991958 to read the diagnostic trouble codes.
4. Turn the ignition switch to the "LOCK" (OFF) position.
5. Disconnect scan tool MB991958.
Q: Is DTC 15 set?
YES : Return to Step 1 .
NO : The procedure is complete.
DTC 21: Cancel Latch Signal System DTC SET CONDITIONS The PCM communicates cancellation retention information between the two
microprocessors. This DTC is set when cancellation retention information contains
inconsistency. TROUBLESHOOTING HINTS (The most likely causes for this code to be set are:) Malfunction of the PCM. DIAGNOSIS Replace the PCM. [Refer to POWERTRAIN CONTROL MODULE (PCM)
].
Check that diagnostic trouble code 21 is not set.
DTC 22: Stoplight Switch System
2004 Mitsubishi Endeavor LS
2004 BODY & ACCESSORIES Auto, Cruise Control System - Endeavor

5. Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the measured voltage battery positive voltage (approximately 12
volts) when the brake pedal is depressed and 1 volt or less when the brake
pedal is released?
YES : It can be assumed that this malfunction is intermittent. (Refer to
HOW TO COPE WITH INTERMITTENT MALFUNCTIONS
).
Then go to Step 22 .
NO : Replace the PCM. [Refer to POWERTRAIN CONTROL
MODULE (PCM)
]. Then go to Step 22 .
STEP 8. Measure the power supply voltage at stoplight switch connector
C-03 by backprobing.
1. Do not disconnect stoplight switch connector C-03.

2004 Mitsubishi Endeavor LS
2004 BODY & ACCESSORIES Auto, Cruise Control System - Endeavor

Fig. 79: Measuring Terminal Voltage

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
5. Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the measured voltage battery positive voltage (approximately 12
volts) when the brake pedal is depressed and 1 volt or less when the brake
pedal is released?
YES : It can be assumed that this malfunction is intermittent. (Refer to
HOW TO COPE WITH INTERMITTENT MALFUNCTIONS
).
Then go to Step 22 .
NO : Replace the PCM. [Refer to POWERTRAIN CONTROL
MODULE (PCM)
]. Then go to Step 22 .
STEP 21. Using scan tool MB991958, read the diagnostic trouble codes.
1. Connect scan tool MB991958 to the data link connector. (Refer to AUTO
-
CRUISE CONTROL SYSTEM DIAGNOSTIC TROUBLESHOOTING STRATEGY
).
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 BODY & ACCESSORIES Auto, Cruise Control System - Endeavor

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA
.
2. Turn the ignition switch to the "ON" position.
3. Set scan tool MB991958 to read the diagnostic trouble codes.
4. Turn the ignition switch to the "LOCK" (OFF) position.
5. Disconnect scan tool MB991958.
Q: Is DTC 22 set?
YES : Replace the PCM. [Refer to POWERTRAIN CONTROL
MODULE (PCM)
]. Then go to Step 22.
NO : It can be assumed that this malfunction is intermittent. (Refer to
HOW TO COPE WITH INTERMITTENT MALFUNCTIONS
).
Step 22. Using scan tool MB991958, read the diagnostic trouble codes.
1. Connect scan tool MB991958 to the data link connector. (Refer to AUTO
-
CRUISE CONTROL SYSTEM DIAGNOSTIC TROUBLESHOOTING STRATEGY
).
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 BODY & ACCESSORIES Auto, Cruise Control System - Endeavor

2. Turn the ignition switch to the "ON" position.
3. Set scan tool MB991958 to read the diagnostic trouble codes.
4. Turn the ignition switch to the "LOCK" (OFF) position.
5. Disconnect scan tool MB991958.
Q: Is DTC 22 set?
YES : Replace to Step 1 .
NO : The procedure is complete.
DTC 23: Powertrain Control module (PCM) and Its Related Components DTC SET CONDITIONS This DTC is set when there is a failure in the PCM and its related components. TROUBLESHOOTING HINTS (The most likely causes for this code to be set are:)
Malfunction of the MFI system. Malfunction of the A/T system. Malfunction of the PCM.
DIAGNOSIS REQUIRED SPECIAL TOOL:
MB991958: Scan Tool (MUT-III sub assembly)
MB991824: V.C.I. MB991827: USB Cable MB991910: Main Harness A
STEP 1. Using scan tool MB991958, read the 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 BODY & ACCESSORIES Auto, Cruise Control System - Endeavor

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA
.
2. Turn the ignition switch to the "ON" position.
3. Check for A/T 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 : Diagnose the A/T system. (Refer to DIAGNOSTIC TROUBLE
CODE CHART
). Then go to Step 3.
NO : Replace the PCM. [Refer to POWERTRAIN CONTROL
MODULE (PCM)
]. Then go to Step 3.
STEP 3. Using scan tool MB991958, read the diagnostic trouble code.
1. Connect scan tool MB991958 to the data link connector. (Refer to AUTO
-
CRUISE CONTROL SYSTEM DIAGNOSTIC TROUBLESHOOTING STRATEGY
).
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 BODY & ACCESSORIES Auto, Cruise Control System - Endeavor

2. Turn the ignition switch to the "ON" position.
3. Set scan tool MB991958 to data reading mode for auto-cruise control
system.
Item 07, Transmission Range Switch.
When selector lever is at the "P" or "N" position, the display on
scan tool MB991958 should be "ON". When selector lever is at the "R" or "D" position, the display on
scan tool MB991958 should be "OFF".
4. Turn the ignition switch to the "LOCK" (OFF) position.
5. Disconnect scan tool MB991958.
Q: Is the switch operating properly?
YES: Go to Step 6.
NO: Refer to SYMPTOM PROCEDURES
. Then go to Step 7 .
STEP 6. Check the Symptoms.
Q: Can auto-cruise control be set?
YES: It can be assumed that this malfunction is intermittent (Refer to
HOW TO COPE WITH INTERMITTENT MALFUNCTIONS
).
NO: Replace the PCM [Refer to POWERTRAIN CONTROL
MODULE (PCM)
]. Then go to Step 7.
STEP 7. Check the symptoms.
Q: Can auto-cruise control be set?
YES: The procedure is complete.
NO: Return to Step 1 .
INSPECTION PROCEDURE 5: Hunting (Repeated Acceleration and Deceleration) Occurs at the Set Vehicle Speed. COMMENT The out
put shaft s
peed sensor si
gnal or the throttle bod
y is sus
pected.

2004 Mitsubishi Endeavor LS
2004 BODY & ACCESSORIES Auto, Cruise Control System - Endeavor

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: Diagnose the MFI control system. (Refer to DIAGNOSTIC
TROUBLE CODE CHART
). Then go to Step 4 .
NO: Go to Step 3.
STEP 3. Retest the system
Q: Does hunting occur?
YES: Replace the PCM [Refer to POWERTRAIN CONTROL
MODULE (PCM)
]. Then go to Step 4.
NO: It can be assumed that this malfunction is intermittent (Refer to
HOW TO COPE WITH INTERMITTENT MALFUNCTIONS
).
STEP 4. Retest the system
Q: Does a hunting occur?
YES: Return to Step 1 .
NO: The procedure is complete.
INSPECTION PROCEDURE 6: Auto-cruise Control Indicator Light inside Combination Meter does not Illuminate.
(However, Auto-cruise Control is Normal).
2004 Mitsubishi Endeavor LS
2004 BODY & ACCESSORIES Auto, Cruise Control System - Endeavor

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA
.
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 DTC U1108 set?
YES: Refer to DTC U1108: COMBINATION METER TIME
-OUT
.
Then go to Step 4 .
NO: Go to Step 3.
STEP 3. Retest the system.
Q: Does the "CRUISE" indicator light illuminate when the
"CRUISE" (MAIN) switch is turned "ON"?
YES: It can be assumed that this malfunction is intermittent (Refer to
HOW TO COPE WITH INTERMITTENT MALFUNCTIONS
).
NO: Replace the PCM [Refer to POWERTRAIN CONTROL
MODULE (PCM)
]. Then go to Step 4.
STEP 4. Retest the system.
Q: Does the "CRUISE" indicator light illuminate when the
"CRUISE" (MAIN) switch is turned "ON"?
YES: The procedure is complete.
NO: Return to Step 1 .
DATA LIST REFERENCE TABLE
CAUTION:
When shifting the selector lever to "D" range, the
brakes should be applied so that the vehicle
does not move forward.

2004 Mitsubishi Endeavor LS
2004 BODY & ACCESSORIES Auto, Cruise Control System - Endeavor