Inspection Procedure 2: Shift Indicator Light Does Not Illuminate

INSPECTION PROCEDURE 2: Shift indicator light does not illuminate.








CAUTION: Whenever the ECU is replaced, ensure that the CAN bus lines are normal.

COMMENTS ON TROUBLE SYMPTOM
The shift indicator light or shift lever-ECU may have a problem.

PROBABLE CAUSES
^ Malfunction of the shift indicator light
^ Damaged harness wires and connectors
^ Malfunction of the shift lever-ECU

DIAGNOSTIC PROCEDURE

STEP 1. Scan tool CAN bus diagnostics
Using scan tool MB991958, diagnose the CAN bus lines.

Q: Is the check result normal?
YES: Go to Step 2.
NO: Repair the CAN bus lines. After repairing the CAN bus line, go to Step 2.

STEP 2. Scan tool service data
Item No. 1: Shift lever position

Q: Is the check result normal?
YES: Go to Step 3.
NO: Replace the shift lever assembly.

STEP 3. Scan tool actuator test
Item No. 1: Shift indicator

Q: Is the check result normal?
YES: Intermittent malfunction.
NO: Go to Step 4.

STEP 4. Inspection of the floor console panel assembly connector: C-27-1
Check for the contact with terminals.

Q: Is the check result normal?
YES: Replace the floor console panel assembly.
NO: Repair the defective connector.