Dtc P0480 [Z6] - Mazda 3 Workshop Manual

Mazda 3 Workshop Manual – Engine + Wiring Diagrams + Diagnostic Trouble Codes
- Purge solenoid valve terminal A
(wiring harness-side) and PCM
terminal 2T (wiring harness-side)
- Purge solenoid valve terminal B
(wiring harness-side) and PCM
terminal 2AV (wiring harness-side)
• Is there continuity?
VERIFY TROUBLESHOOTING OF DTC
P0443 COMPLETED
• Make sure to reconnect all disconnected
connectors.
• Clear the DTC from the PCM memory using
9
the WDS or equivalent.
• Start the engine.
• Is the PENDING CODE for this DTC
present?
VERIFY AFTER REPAIR PROCEDURE
• Perform the "AFTER REPAIR
PROCEDURE".
10
(See AFTER REPAIR PROCEDURE
• Are any DTCs present?
DTC P0480
DETECTION
CONDITION
POSSIBLE CAUSE
Downloaded from
[Z6].)

DTC P0480 [Z6]

Cooling fan control circuit problem
• The PCM monitors input voltage from the fan control module. If the voltage
at PCM terminal 1AP remains low or high, the PCM determines that there is
a cooling fan control circuit problem.
Diagnostic support note
• This is a continuous monitor (Other).
• The MIL does not illuminate.
• FREEZE FRAME DATA is not available.
• The DTC is stored in the PCM memory.
• Fan control module malfunction
• Connector or terminal malfunction
• Open circuit in wiring harness between fan control module terminal C and
PCM terminal 1AP
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Replace the PCM, then go to the next step.
Yes
(See PCM REMOVAL/INSTALLATION
[Z6].)
No Go to the next step.
Go to the applicable DTC inspection.
Yes
(See DTC TABLE [Z6].)
No DTC troubleshooting completed.
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B3E010200400W04