Inspection Procedure 7

INSPECTION PROCEDURE 7: When "CRUISE" (MAIN) Switch is Turned "ON", "CRUISE" Indicator Light Inside Combination Meter does not Illuminate. (However, Auto-cruise Control System is Normal).





































CIRCUIT OPERATION

The ECM [M/T] or PCM [A/T] detects "CRUISE" (MAIN) switch "ON" signal to illuminate the "CRUISE" indicator light on the combination meter.

COMMENT

Connector(s), wiring harness in the CAN bus line between the ECM [M/T] or PCM [A/T] and the combination meter, power supply to the ECM [M/T] or PCM [A/T], the combination meter, the ECM [M/T] or PCM [A/T] may be defective.

TROUBLESHOOTING HINTS

- Malfunction of the combination meter.
- Damaged harness or connector.
- Malfunction of the ECM [M/T] or PCM [A/T].

DIAGNOSIS

Required Special Tools:

- MB991958: Scan Tool (M.U.T.-III Sub Assembly)
- MB991824: V.C.I.
- MB991827: M.U.T.-III USB Cable
- MB991910: M.U.T.-III Main Harness A

STEP 1. Using scan tool MB991958, diagnose the CAN bus line.





(1)
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.

Connect scan tool MB991958 to the data link connector. (Refer to Reading and Clearing Diagnostic Trouble Codes).
(2)Turn the ignition switch to the "ON" position.
(3)Diagnose the CAN bus line. (Refer to Scan Tool Testing and Procedures).
(4)Turn the ignition switch to the "LOCK" (OFF) position.
(5)Disconnect scan tool MB991958.

Q. Is the check result satisfactory?

YES Go to Step 2

NO Repair the CAN bus lines. CAN Bus Diagnostics Chart). Then go to Step 4.

STEP 2. Using scan tool MB991958, read the MFI diagnostic trouble code.





(1)
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.

Connect scan tool MB991958 to the data link connector. (Refer to Reading and Clearing Diagnostic Trouble Codes).
(2)Turn the ignition switch to the "ON" position.
(3)Check for MFI system diagnostic trouble code Reading and Clearing Diagnostic Trouble Codes) [2.4L engine] or OBD-II Drive Cycle) [3.8L engine].
(4)Turn the ignition switch to the "LOCK" (OFF) position.
(5)Disconnect scan tool MB991958.

Q. Is DTC U1108 set?

YES Multiport Fuel Injection (MFI) [2.4L engine] or Multiport Fuel Injection (MFI) [3.8L engine]. 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. How to Cope With Intermittent Malfunctions).
NO Replace the ECM [M/T] or PCM [A/T]. Immobilizer System). 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.