Pinpoint Test 4

PINPOINT TEST 4: ONE LOW BEAM HEADLAMP IS INOPERATIVE

Step 1-Step 2:

Step 3:

Normal Operation
When the headlamp switch is placed in the HEAD-LAMPS ON position, the smart junction box (SJB) routes voltage to the LH and RH low beams through circuits (V) and (GY), respectively. Ground is provided to the LH and RH head lamps through circuits (B/Y) and (B/GY) respectively.

Possible Causes
- Fuse
- Circuit (GY) open
- Circuit (V) open
- Circuit (B/Y) open
- Circuit (B/GY) open
- SJB

CAUTION: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.