
Diagnostic Procedure

Dtc 21
Dtc 58Mazda 6 Service Manual: Caliper (front) disassembly/assembly
1. Disassemble in the order indicated in the table.
2. Assemble in the reverse order of removal.
Piston Disassembly Note
Caution
Blow the compressed air slowly to prevent the piston from suddenly
popping out.
1. Place a piece of wood in the caliper, then blow compressed air through ...
Mazda 6 Service Manual: Heated oxygen sensor (ho2s) inspection
HO2S Voltage Inspection
Note
Perform the following inspection only when directed.
1. Warm up the engine and run it at idle.
2. Disconnect the HO2S connector.
3. Connect the voltmeter test leads to the following HO2S terminals:
HO2S (front and rear)
- (+) leadterminal A
- (-) le ...