Pinpoint Test 4

PINPOINT TEST 4: THE AUDIO SYSTEM ILLUMINATION IS INOPERATIVE

Step 1-Step 2:

Normal Operation
Variable voltage is supplied to the audio unit from the instrument panel dimmer switch on circuit (L/W). The audio unit is grounded through circuit (B/Y).

Possible Causes
- Circuit (L/W) open
- Circuit (B/Y) open
- Audio unit

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