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

Required Special Tools:
^ MB991958: Scan Tool (M.U.T.-III Sub Assembly)
^ MB991824: Vehicle Communication Interface (V.C.I.)
^ MB991827: M.U.T.-III USB Cable
^ MB991910: M.U.T.-III Main Harness A

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 (Data List Reference Table)
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 (Special Function (Actuator Test Reference Table))
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.