Lamps/Lighting - Exterior

WARNING: TO AVOID PERSONAL INJURY OR DEATH, ON VEHICLES EQUIPPED WITH AIRBAGS, DISABLE THE SUPPLEMENTAL RESTRAINT SYSTEM BEFORE ATTEMPTING ANY STEERING WHEEL, STEERING COLUMN, AIRBAG, OCCUPANT CLASSIFICATION SYSTEM, SEAT BELT TENSIONER, IMPACT SENSOR, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE. DISCONNECT AND ISOLATE THE BATTERY NEGATIVE (GROUND) CABLE, THEN WAIT TWO MINUTES FOR THE SYSTEM CAPACITOR TO DISCHARGE BEFORE PERFORMING FURTHER DIAGNOSIS OR SERVICE. THIS IS THE ONLY SURE WAY TO DISABLE THE SUPPLEMENTAL RESTRAINT SYSTEM. FAILURE TO TAKE THE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT.

NOTE:
- When diagnosing the exterior lighting circuits, remember that high generator output can burn out bulbs rapidly and repeatedly; and, that dim or flickering bulbs can be caused by low generator output or poor battery condition. If one of these symptoms is a problem on the vehicle, be certain to diagnose the battery and charging system, then repair as necessary.
- A good ground is necessary for proper lighting operation. If a lighting problem is being diagnosed that involves multiple symptoms, systems, or components, the problem can often be traced to a loose, corroded, or open ground.

The hard wired exterior lamp and lighting circuits may be diagnosed and tested using conventional diagnostic tools and procedures. The wiring information includes wiring diagrams, proper wire and connector repair procedures, details of wire harness routing and retention, connector pin-out information and location views for the various wire harness connectors, splices and grounds.

However, conventional diagnostic methods may not prove conclusive in the diagnosis of the Body Control Module (BCM), the ElectroMechanical Instrument Cluster (EMIC), the Powertrain Control Module (PCM), the Programmable Communications Interface (PCI) data bus, or the electronic message inputs used to provide exterior lamp and lighting service or many of the electronic features of the exterior lamp and lighting systems. The most reliable, efficient, and accurate means to diagnose the BCM, the EMIC, the PCM, the PCI data bus, and the electronic message inputs used for control of the exterior lamps and lighting system requires the use of a diagnostic scan tool.




BACKUP LAMPS




BRAKE LAMPS




DAYTIME RUNNING LAMPS

NOTE: Before performing the tests, determine whether the headlamp low and high beams operate. If the headlamp high and low beams are also inoperative, diagnose and repair that problem before attempting to repair the Daytime Running Lamps.







FRONT FOG LAMPS




HAZARD WARNING LAMPS

NOTE: Before performing the tests, confirm whether the left and right turn signals operate satisfactorily. If the turn signals are inoperative or operate improperly, diagnose and repair that problem before attempting to repair the Hazard Warning Lamps.







HEADLAMPS




HEADLAMP LEVELING

NOTE: Before performing the tests, confirm whether the park lamps operate properly. If the park lamps are inoperative, diagnose and repair that problem before attempting to repair the Headlamp Leveling System.







LIGHT BAR LAMPS
NOTE: Before performing the tests on vehicles manufactured for markets outside of North America, confirm whether both the park lamps and the low beam headlamps operate satisfactorily. If the park lamps or low beam headlamps are inoperative or operate improperly, diagnose and repair that problem before attempting to repair the light bar lamps.




PARK LAMPS




REAR FOG LAMPS




TURN SIGNAL LAMPS