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Home >> Mazda >> 2008 >> B2300 L4-2.3L >> Repair and Diagnosis >> Instrument Panel, Gauges and Warning Indicators >> Instrument Cluster / Carrier >> Testing and Inspection >> Pinpoint Tests >> Instrument Cluster and Panel Illumination >> Pinpoint Test 4

Pinpoint Test 4

PINPOINT TEST 4: THE AUDIO SYSTEM ILLUMINATION IS INOPERATIVE

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

This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- ACM

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 2:




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