Note

1. Verify the concern.
2. Turn the ignition switch to LOCK position.
3. Disconnect the negative battery cable.
4. Connect the negative battery cable.
5. Turn the ignition switch to ON position.
6. Verify that the needle returns to zero.
Instrument cluster inspection
Instrument cluster input/output check modeMazda 6 Service Manual: Power steering fluid inspection
Fluid Level Inspection
1. Inspect the power steering fluid level.
Add fluid to the specified level as necessary.
Fluid specification
ATF M-III or equivalent (e.g. Dexron®II)
Fluid Leakage Inspection
1. Start the engine and let it idle.
2. Turn the steering wheel fully to the left and ...
Mazda 6 Service Manual: Dtc c1148, c1158, c1168, c1178, c1233, c1234, c1235, c1236
Caution
When attaching the tester lead to the ABS (ABS/TCS) HU/CM harness
connector, the SST (49 G066 001) must be used. (See ABS (ABS/TCS) HU/CM
INSPECTION.)
Diagnostic procedure
...