Mazda 3 Workshop Manual page 268

Mazda 3 Workshop Manual – Engine + Wiring Diagrams + Diagnostic Trouble Codes
POSSIBLE CAUSE
Diagnostic procedure
STEP
VERIFY FREEZE FRAME DATA HAS BEEN
RECORDED
1
• Has FREEZE FRAME DATA been recorded?
VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
• Verify related service repair information
2
availability.
• Is any related repair information available?
Downloaded from
• FREEZE FRAME DATA is available.
• The DTC is stored in the PCM memory.
• Short to power supply in wiring harness between rear HO2S terminal D and
PCM terminal 2C
• Short circuit in rear HO2S or PCM
• Rear HO2S heater malfunction
• PCM malfunction
INSPECTION
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ACTION
Yes Go to the next step.
Record the FREEZE FRAME DATA on the
No
repair order, then go to the next step.
Perform the repair or diagnosis according to
the available repair information.
Yes
• If the vehicle is not repaired, go to the next
step.
No Go to the next step.
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