Inspection Procedure 16

INSPECTION PROCEDURE 16: Selector Lever Position Indicator Light System

OPERATION

- The PCM detects the transmission range (P, R, N D, sport mode 4, 3, 2, or 1), and display it on the combination meter.

COMMENT

Connector(s), wiring harness in the CAN bus line between the PCM and the combination meter, power supply to the PCM, the combination meter, the PCM may be defective.

TROUBLESHOOTING HINTS (THE MOST LIKELY CAUSES FOR THIS CONDITION:)

- Malfunction of the combination meter
- Damaged harness, connector
- Malfunction of the PCM

DIAGNOSIS

Required Special Tools:

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

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





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.

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 the "ON" position.
(3)Diagnose the CAN bus line.
(4)Turn the ignition switch to the "LOCK" (OFF) position.

Q. Is the check result OK?

YES Go to Step 2.

NO Repair the CAN bus lines CAN Bus Diagnostics Chart).

STEP 2. Using scan tool MB991958, read the MFI 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.

(1)Connect scan tool MB991958 to the data link connector.
(2)Turn the ignition switch to the "ON" position.
(3)Check for MFI diagnostic trouble code.
(4)Turn the ignition switch to the "LOCK" (OFF) position.

Q. Is DTC U1108 set?

YES DTC U1101: Combination Meter-ECU CAN Communication Time Out

NO Replace the PCM. When the PCM is replaced, register the encrypted code. Encrypted Code Registration Criteria Table.