Test 21: Open Door Indicator Problem

Disconnect instrument panel connector "D". Ground connector "D" terminal No. 9 and turn ignition on. If OPEN DOOR light does not illuminate, check wiring between connector "D" terminal No. 9 and cruise control ECU. Check power from ECU. If wiring is okay, check light bulb. Replace as needed and retest. If OPEN DOOR light illuminates, replace circuit plate and retest. If problem still exists, replace power source unit.