Exterior Lighting Diagnostic Tests: Notes
NOTE:
Perform SYSTEM ID TEST
before proceeding with following tests. For connector terminal identification and wiring diagrams, see
BODY CONTROL COMPUTER INTRODUCTION article. Perform VERIFICATION TEST: VER-2A
after each repair.
The following exterior lighting scan tool fault messages are covered:
- FOG LAMP RELAY CKT SHORTED HI
- FOG LAMP RELAY CKT SHORTED LO/OPEN
- HAZARD RELAY CKT SHORTED HI
- HEADLAMP SW OPEN CKT
- HEADLAMP SW SHORT TO GROUND
- HIGH BEAM RELAY CKT SHORTED HI
- LOW BEAM RELAY CKT SHORTED HI
- LOW BEAM RELAY CKT SHORTED LO/OPEN
- PARK LAMP RELAY CKT SHORTED HI
- PARK LAMP RELAY CKT SHORTED LO/OPEN