Component Inspection

Check Multifunction switch
1. Connect scantool to Data Link Connector (DLC).
2. Ignition "ON" & engine "OFF".
3. Substitute with a known-good Multifunction switch and Check if the DTC is erased.
4. Is the DTC erased?
  YES
  - Substitute with a known-good Multifunction switch and check for proper operation. If the problem is corrected, replace Multifunction switch and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
  NO
  - Go to " 2 Check BCM" procedure.
Check BCM
1. Connect scantool to Data Link Connector (DLC).
2. Ignition "ON" & engine "OFF".
3. Substitute with a known-good BCM and Check if the DTC is erased.
4. Is the DTC erased?
  YES
  - Substitute with a known-good BCM and check for proper operation.
    If the problem is corrected, replace BCM and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
  NO
  - Check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.