Mazda CX-9 Grand Touring 2007 Manual page 777

2007 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.5) - CX-9
POSITION (APP) SENSOR
INSPECTION [MZI-3.5]. )
Is there any malfunction?
6 INSPECT PCM CONNECTOR FOR
POOR CONNECTION
Turn the ignition switch off.
Disconnect the PCM connector.
Inspect for poor connection (such
as damaged/pulled-out pins,
corrosion).
Are there any malfunction?
7 VERIFY TROUBLESHOOTING OF
DTC P2127 HAS BEEN
COMPLETED
Verify that all disconnected
connectors reconnected.
Clear the DTC from the PCM
memory using the M-MDS.
Start the engine.
Is the same DTC present?
8 VERIFY AFTER REPAIR
PROCEDURE
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR
PROCEDURE [MZI-3.5].)
Are any DTC present?
DTC P2128 [MZI-3.5]
DTC P2128 (MZI-3.5) DETECTION CONDITION AND POSSIBLE CAUSES
DTC P2128
DETECTION
CONDITION
2007 Mazda CX-9 Grand Touring
APP sensor No.2 circuit high input
APP sensor No.2 is out of self-test range high.
Open circuit wiring harness between APP sensor terminal F and PCM terminal 1B
Open circuit wiring harness between APP sensor terminal D and PCM terminal 1Y
Open circuit wiring harness between APP sensor terminal G and PCM terminal 1A
No Go to the next step.
Yes Repair or replace suspected part, then go to
Step 7.
No Go to the next step.
Yes Replace the PCM, then go to the next step.
(see PCM
REMOVAL/INSTALLATION [MZI-
3.5] .)
No Go to the next step.
Yes Go to the applicable DTC inspection.
(See DTC TABLE [MZI-3.5].)
No DTC troubleshooting completed.