Mazda Mazda6 Workshop Manual Supplement page 326

NO.2 MIL ILLUMINATES
2 MIL ILLUMINATES
• MIL illuminates incorrectly.
DESCRIPTION
• PCM illuminates for emission-related concern (DTC is stored in PCM)
• Instrument cluster malfunction
POSSIBLE
CAUSE
Note
• If MIL blinks at steady rate, misfire condition could possibly exist.
Diagnostic procedure
STEP
1 Connect WDS or equivalent to DLC-2.
Turn engine switch to ON.
Retrieve any DTC.
Is DTC displayed?
2 Verify test results.
• If okay, return to diagnostic index to service any additional symptoms.
• If malfunction remains, replace PCM. (See
End Of Sie
NO.3 WILL NOT CRANK
3 WILL NOT CRANK
• Starter does not work.
DESCRIPTION
• Open starter circuit between engine switch and starter
• Starter malfunction
• Seized/hydrolocked engine, flywheel
POSSIBLE
• Immobilizer system (PATS) and/or circuit malfunction (if equipped)
CAUSE
• Low or dead battery
• Charging system malfunction
Diagnostic procedure
STEP
1 Note
• The following test should be perform for
vehicles with immobilizer system. Go to
Step 10 for vehicles without immobilizer
system.
Connect WDS or equivalent to DLC-2.
Do following conditions appear?
• Engine is not completely started.
• DTC B1681 is displayed.
2 Is coil connector securely connected to coil?
3 Does security light illuminate?
4 Connect WDS or equivalent to DLC-2 and
retrieve DTC.
DTC
B1213, B1342, B1600, B1601, B1602, B1681,
B2103, B2431
F2–174
TROUBLESHOOTING
INSPECTION
INSPECTION
RESULTS
Yes DTC is displayed:
• Go to appropriate DTC test.
No No DTC is displayed:
• Inspect instrument cluster operation.
F2–64 PCM REMOVAL/INSTALLATION)
RESULTS
Yes Both conditions appear:
Go to Step 4.
No Either or other condition appears:
Go to next step.
Yes Go to next step.
No Connect coil connector securely.
Return to Step 1.
Yes Go to next step.
No Inspect instrument cluster and wiring harness.
Yes Go to appropriate DTC test.
No Go to next step.
A6E408018881204
ACTION
A6E408018881205
ACTION