Mazda CX-9 Grand Touring 2009 Manual page 1126

2008 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.7) - Mazda CX-9
VERIFY TROUBLESHOOTING OF
DTC P0602 HAS BEEN COMPLETED
Verify that all disconnected
connectors are reconnected.
Turn the ignition switch to the ON
position (Engine off).
Clear the DTC from the PCM
3
memory using the M-MDS.
Perform the "KOEO and KOER self-
test". (See KOEO/KOER SELF
TEST [MZI-3.7].)
Retrieve DTCs using the M-MDS.
Is the PENDING CODE for this DTC
present?
VERIFY AFTER REPAIR
PROCEDURE
Perform the "After Repair
4
Procedure". (See AFTER REPAIR
PROCEDURE [MZI-3.7].)
Are any DTCs present?
DTC P0603 [MZI-3.7]
DTC P0603 (MZI-3.7) DETECTION CONDITIONS AND POSSIBLE CAUSES
DTC P0603
DETECTION
CONDITION
POSSIBLE CAUSE
2008 Mazda CX-9 Grand Touring
PCM keep alive memory (KAM) error
Indicates the PCM has experienced an internal memory concern. However, there
are external items that can cause this DTC.
Reprogramming
Battery terminal corrosion
Open circuit between battery positive terminal and PCM terminal 1 BB
Connector or terminal malfunction
Loose battery connection
Replace the PCM, then go to the next step. (See
Yes PCM REMOVAL/INSTALLATION [MZI-
3.7] .)
No Go to the next step.
Go to the applicable DTC inspection. (See DTC
Yes
TABLE [MZI-3.7].)
No Troubleshooting completed.