Operation CHARM: Car repair manuals for everyone.
Home >> Mazda Truck >> 2009 >> B4000 V6-4.0L >> Repair and Diagnosis >> Lighting and Horns >> Headlamp >> Testing and Inspection >> Pinpoint Tests >> Headlamps >> Pinpoint Test 1: Both Headlamps Are Inoperative

Pinpoint Test 1: Both Headlamps Are Inoperative




UNPINNED TEST 1: BOTH HEADLAMPS ARE INOPERATIVE

Normal Operation

The smart junction box (SJB) provides voltage to the multifunction switch and the headlamp switch through circuit (W/R). When the headlamp switch is placed in the HEADLAMPS ON position, the voltage is routed to the multifunction switch through circuit (BR/W).

This pinpoint test is intended to diagnose the following:
- Fuse
- Wiring, terminals or connectors
- Headlamp switch
- Multifunction switch
- SJB

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

Step 1-Step 5:





Step 6:





pro multis · About Operation CHARM