DTC P1674 [MZI-3.7]
DTC P1674 (MZI-3.7) DETECTION CONDITIONS AND POSSIBLE CAUSES
DIAGNOSTIC PROCEDURE
DTC P1674 (MZI-3.7) DIAGNOSTIC PROCEDURE
z
Is the PENDING CODE for this DTC
present?
8
VERIFY TROUBLESHOOTING OF DTC
P1650 HAS BEEN COMPLETED
z
Verify that all disconnected connectors
reconnected.
z
Start the engine.
z
Clear DTC from PCM memory using
M-MDS.
z
Perform the "KOEO/KOER Self-Test".
(See
KOEO/KOER SELF TEST
[MZI-3.7]
.)
z
Is same DTC present?
Yes
Replace the PCM, then go to the next step.
(See
PCM REMOVAL/INSTALLATION
[MZI-3.7]
.)
No
Go to the next step.
9
VERIFY AFTER REPAIR PROCEDURE
z
Perform "AFTER REPAIR
PROCEDURE". (See
AFTER
REPAIR PROCEDURE [MZI-3.7]
.)
z
Are any DTCs present?
Yes Go to the applicable DTC inspection. (See
DTC TABLE [MZI-3.7]
.)
No
Troubleshooting completed.
DTC P1674
Control module software corrupted
DETECTION
CONDITION
z
Indicates that an error occurred in the PCM. This DTC is set in
combination with P2105.
POSSIBLE CAUSE
z
Software incompatibility issue
z
PCM malfunction
STEP
INSPECTION
ACTION
1
VERIFY FREEZE FRAME DATA
HAS BEEN RECORDED
z
Has FREEZE FRAME DATA been
recorded?
Yes Go to the next step.
No
Record FREEZE FRAME DATA on the repair
order, then go to the next step.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
Yes
Perform repair or diagnosis according to the
available Service Bulletins.
2008 Mazda CX-9 Grand Touring
2008 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.7) - Mazda CX-9
Microsoft
Sunday, November 15, 2009 10:08:41 AM
Page 354
© 2005 Mitchell Repair Information Company, LLC.
