Mazda 3 Workshop Manual page 88

Mazda 3 Workshop Manual – Engine + Wiring Diagrams + Diagnostic Trouble Codes
Diagnostic support note
• This is a continuous monitor (CCM).
• The MIL illuminates if the PCM detects the above malfunction condition in two
consecutive drive cycles or in one drive cycle while the DTC for the same malfunction
has been stored in the PCM.
• PENDING CODE is available if the PCM detects the above malfunction condition
during the first drive cycle.
• FREEZE FRAME DATA is available.
• The DTC is stored in the PCM memory.
• TP sensor malfunction
• Electrical corrosion in TP signal circuit
POSSIBLE
• MAF sensor malfunction
CAUSE
• PCM malfunction
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?
VERIFY RELATED PENDING CODE OR
STORED DTC
• Turn the ignition switch off, then to the ON
position (Engine off).
3
• Verify the related PENDING CODE or stored
DTCs.
• Are other DTC present?
VERIFY CURRENT INPUT SIGNAL STATUS
: IS CONCERN INTERMITTENT OR
CONSTANT?
4
• Start the engine.
• Access the ECT, TP and MAF PIDs using
the WDS or equivalent.
Downloaded from
- MAF sensor signal is less than 3.3 g/s {0.4 lb/min}.
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 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.
Go to the appropriate DTC inspection.
Yes
(See DTC TABLE [Z6].)
No Go to the next step.
Yes Go to Step 7.
No Go to the next step.
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