Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Backup Lamp: Testing and Inspection

Symptom: *BACKUP LAMPS INOPERATIVE

POSSIBLE CAUSES
- OPEN BACKUP LAMP BULB(S)
- BACKUP LAMP GROUND CIRCUIT OPEN
- BACKUP LAMP SUPPLY CIRCUIT OPEN
- FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN
- TRANSMISSION RANGE SENSOR
- INTERMITTENT BACKUP LAMPS

Test 1 - Test 4:




Test 5 - Test 6: