Diagnostic procedure
Mazda 6 Service Manual: Water pump
1. Disconnect the negative battery cable.
2. Drain the engine coolant. (See COOLING SYSTEM SERVICE WARNINGS.) (See
ENGINE COOLANT REPLACEMENT.)
3. Loosen the water pump pulley bolt to remove the drive belt. (See DRIVE
BELT REPLACEMENT.)
4. Remove in the order indicated in the table.
5. Insta ...
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 ...