Mazda CX-9 Grand Touring 2009 Manual page 922

2008 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.7) - Mazda CX-9
[MZI-3.7] .)
Is there malfunction?
VERIFY TROUBLESHOOTING
OF DTC P0103 HAS BEEN
COMPLETED
Verify that all disconnected
connectors reconnected.
Turn the ignition switch to the
7
ON position (Engine off).
Clear the DTC from the PCM
memory using the M-MDS.
Start engine and warm it up
completely.
Is same DTC present?
VERIFY AFTER REPAIR
PROCEDURE
Perform "AFTER REPAIR
8
PROCEDURE". (See AFTER
REPAIR PROCEDURE
[MZI-3.7].)
Are any DTC present?
DTC P0104 [MZI-3.7]
DTC P0104 (MZI-3.7) DETECTION CONDITIONS AND POSSIBLE CAUSES
DTC P0104
DETECTION
CONDITION
POSSIBLE CAUSE
2008 Mazda CX-9 Grand Touring
No
Yes
No
Yes
No
MAF circuit intermittent/erratic
A concern exists in the MAF sensor circuit, or the air tube containing the sensor,
causing an incorrect air flow reading.
Air leaks in the tube from the MAF to the throttle body
Open circuit wiring harness between MAF sensor terminal C and PCM terminal
1AJ
Open circuit wiring harness between MAF sensor terminal D and PCM terminal
1 AN
Short to power supply in wiring harness between MAF sensor terminal C and
PCM terminal 1AJ
Short to power supply in wiring harness between MAF sensor terminal D and
PCM terminal 1 AN
Short to ground circuit between MAF sensor terminal C and PCM terminal 1 AJ
Short to ground circuit between MAF sensor terminal D and PCM terminal 1
AN
Go to the next step.
Replace PCM, then go to the next step. (See PCM
REMOVAL/INSTALLATION [MZI-3.7] .)
Go to the next step.
Go to the applicable DTC inspection. (See DTC
TABLE [MZI-3.7].)
Troubleshooting completed.