INSPECTION PROCEDURE 16: Selector Lever Position Indicator Light System: Diagnosis

Required Special Tools: 

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

1. 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? 

      1. YES:  Go to Step 2.
      2. NO:  Repair the CAN bus lines (Refer to CAN BUS DIAGNOSTIC CHART ).
         Fig 1: Connecting Scan Tool MB991958 To Data Link Connector

         Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
2. 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? 

      1. YES:  Refer to DTC U1101: COMBINATION METER - ECU CAN COMMUNICATION TIME OUT
      2. NO:  Replace the PCM. When the PCM is replaced, register the encrypted code. Refer to ENCRYPTED CODE REGISTRATION CRITERIA TABLE .
         Fig 2: Connecting Scan Tool MB991958 To Data Link Connector

         Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.