Note

Diagnostic procedure

Dtc c1510, c1511, c1512, c1513Mazda 6 Service Manual: How to Use Stitcher™ Radio
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Mazda 6 Service Manual: Woofer inspection
1. Inspect for continuity between the audio amplifier connector terminals and
woofer connector terminals using an ohmmeter.
If not as specified, replace the related wiring harnesses.
2. Verify that there is battery positive voltage at the woofer connector
terminal A (4SD) or C (5HB) u ...