2 Mil Illuminates [Z6] - Mazda 3 Workshop Manual

Mazda 3 Workshop Manual – Engine + Wiring Diagrams + Diagnostic Trouble Codes
• PCM
(10 A)
• Fuel pump relay
FUEL PUMP fuse
FUEL PUMP
(15 A)
• Fuel pump relay
FAN fuse
FAN
(40 A)
• FAN control module
BTN fuse
BTN
(40 A)
• OBD fuse
OBD fuse
OBD
(10 A)
• DLC-2
2
The MIL is illuminated incorrectly.
DESCRIPTION
• The PCM illuminates for emission-related concern (DTC is stored in the PCM).
• Instrument cluster malfunction
POSSIBLE CAUSE
Diagnostic procedure
STEP INSPECTION
Connect WDS or equivalent to DLC-
2.
1
Retrieve any DTC.
Are there any DTCs displayed?
2 Verify test results.
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NO.2 MIL ILLUMINATES [Z6]
Note
• If the MIL blinks at steady rate, misfire condition could exist.
RESULTS
Yes
No
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MIL ILLUMITATES
ACTION
DTC is displayed:
• Go to the appropriate DTC inspection.
(See DTC TABLE [Z6].)
No DTC is displayed:
• Inspect the instrument cluster operation.
(See INSTRUMENT CLUSTER
INSPECTION.)
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B3E010318881W35