Mazda CX-9 Grand Touring 2007 Manual page 722

2007 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.5) - CX-9
Verify that all disconnected
connectors reconnected.
Clear the DTC from the PCM
memory using the M-MDS.
Perform the "KOEO or KOER
self-test" using the M-MDS.
(See KOEO/KOER SELF TEST
[MZI-3.5].)
Is the PENDING CODE for the
DTC present?
5 VERIFY AFTER REPAIR
PROCEDURE
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR
PROCEDURE [MZI-3.5].)
Are any DTCs present?
DTC P1633 [MZI-3.5]
DTC P1633 (MZI-3.5) DETECTION CONDITION AND POSSIBLE CAUSES
DTC P1633
DETECTION
CONDITION
POSSIBLE CAUSE
2007 Mazda CX-9 Grand Touring
Keep alive power voltage too low
Indicates the keep alive power circuit has experienced a voltage interrupt.
Connector or terminal malfunction
Open circuit between battery positive terminal and PCM terminal 1 BB
No Go to the next step.
Yes Go to the applicable DTC inspection.
(See DTC TABLE [MZI-3.5].)
No Troubleshooting completed.