Dtc P0669 [Z6] - Mazda 3 Workshop Manual

Mazda 3 Workshop Manual – Engine + Wiring Diagrams + Diagnostic Trouble Codes
• Are any DTCs present?
DTC P0669
• The PCM monitors the PCM temperature sensor (integrated the PCM) signal. If the
PCM detects that the PCM temperature sensor voltage is 4.98 V or more, the PCM
determines that the PCM temperature sensor has a malfunction.
Diagnostic support note
• This is a continuous monitor (Other).
DETECTION
CONDITION • The MIL does not illuminate.
• PENDING CODE is available if the PCM detects the above malfunction condition.
• FREEZE FRAME DATA is not available.
• The DTC is stored in the PCM memory.
• PCM temperature sensor malfunction
POSSIBLE
CAUSE
Diagnostic procedure
STEP INSPECTION
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 TROUBLESHOOTING OF DTC
P0669 COMPLETED
• Make sure to reconnect all disconnected
3
connectors.
• Turn the ignition switch to the ON
position (Engine off).
Downloaded from

DTC P0669 [Z6]

PCM temperature sensor circuit high input
Yes Go to the next step.
No
Yes
No Go to the next step.
Yes
No Go to the next step.
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ACTION
Record the FREEZE FRAME DATA on the repair
order, then go to the next step.
Perform repair or diagnosis according to the
available repair information.
• If the vehicle is not repaired, go to the next
step.
Replace the PCM, then go to the next step.
(See PCM REMOVAL/INSTALLATION
- automotive repair manuals website
B3E010200600W05
[Z6].)