DTC P0603 [MZI-3.7]
DTC P0603 (MZI-3.7) DETECTION CONDITIONS AND POSSIBLE CAUSES
3
VERIFY TROUBLESHOOTING OF
DTC P0602 HAS BEEN COMPLETED
z
Verify that all disconnected
connectors are 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
Perform the "KOEO and KOER self-
test". (See
KOEO/KOER SELF
TEST [MZI-3.7]
.)
z
Retrieve DTCs using the M-MDS.
z
Is the PENDING CODE for this 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.
4
VERIFY AFTER REPAIR
PROCEDURE
z
Perform the "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 P0603
PCM keep alive memory (KAM) error
DETECTION
CONDITION
z
Indicates the PCM has experienced an internal memory concern. However, there
are external items that can cause this DTC.
POSSIBLE CAUSE
z
Reprogramming
z
Battery terminal corrosion
z
Open circuit between battery positive terminal and PCM terminal 1 BB
z
Connector or terminal malfunction
z
Loose battery connection
2008 Mazda CX-9 Grand Touring
2008 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.7) - Mazda CX-9
Microsoft
Sunday, November 15, 2009 10:08:39 AM
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© 2005 Mitchell Repair Information Company, LLC.
