DTC P0104 [MZI-3.7]
DTC P0104 (MZI-3.7) DETECTION CONDITIONS AND POSSIBLE CAUSES
[MZI-3.7]
.)
z
Is there malfunction?
No
Go to the next step.
7
VERIFY TROUBLESHOOTING
OF DTC P0103 HAS BEEN
COMPLETED
z
Verify that all disconnected
connectors reconnected.
z
Turn the ignition switch to the
ON position (Engine off).
z
Clear the DTC from the PCM
memory using the M-MDS.
z
Start engine and warm it up
completely.
z
Is same DTC present?
Yes
Replace PCM, then go to the next step. (See
PCM
REMOVAL/INSTALLATION [MZI-3.7]
.)
No
Go to the next step.
8
VERIFY AFTER REPAIR
PROCEDURE
z
Perform "AFTER REPAIR
PROCEDURE". (See
AFTER
REPAIR PROCEDURE
[MZI-3.7]
.)
z
Are any DTC present?
Yes
Go to the applicable DTC inspection. (See
DTC
TABLE [MZI-3.7]
.)
No
Troubleshooting completed.
DTC P0104
MAF circuit intermittent/erratic
DETECTION
CONDITION
z
A concern exists in the MAF sensor circuit, or the air tube containing the sensor,
causing an incorrect air flow reading.
POSSIBLE CAUSE
z
Air leaks in the tube from the MAF to the throttle body
z
Open circuit wiring harness between MAF sensor terminal C and PCM terminal
1AJ
z
Open circuit wiring harness between MAF sensor terminal D and PCM terminal
1 AN
z
Short to power supply in wiring harness between MAF sensor terminal C and
PCM terminal 1AJ
z
Short to power supply in wiring harness between MAF sensor terminal D and
PCM terminal 1 AN
z
Short to ground circuit between MAF sensor terminal C and PCM terminal 1 AJ
z
Short to ground circuit between MAF sensor terminal D and PCM terminal 1
AN
2008 Mazda CX-9 Grand Touring
2008 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.7) - Mazda CX-9
Microsoft
Sunday, November 15, 2009 10:08:34 AM
Page 58
© 2005 Mitchell Repair Information Company, LLC.
