Mazda CX-9 Grand Touring 2007 Manual page 381

2007 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.5) - CX-9
memory using the M-MDS.
Start the engine.
Is the same DTC present?
7 VERIFY AFTER REPAIR
PROCEDURE
Perform the "AFTER REPAIR
PROCEDURE".
(See AFTER REPAIR
PROCEDURE [MZI-3.5].)
Are any DTCs present?
DTC P0020 [MZI-3.5]
DTC P0020 (MZI-3.5) DETECTION CONDITION AND POSSIBLE CAUSES
DTC P0020
DETECTION
CONDITION
POSSIBLE CAUSE
2007 Mazda CX-9 Grand Touring
CMP actuator circuit open (LH)
The PCM monitors the OCV (LH) circuit to the PCM for high and low voltage. T
test fails if the voltage exceeds or falls below a calibrated limit for a calibrated am
of time.
OCV (LH) malfunction
Connector or terminal malfunction
Open circuit between OCV (LH) terminal A and main relay No.1 terminal D
Open circuit between OCV (LH) terminal B and PCM terminal 2BK
Short to ground circuit between OCV (LH) terminal B and PCM terminal 2BK
Short to power supply between OCV (LH) terminal B and PCM terminal 2BK
No Go to the next step.
Yes Go to the applicable DTC inspection.
(See DTC TABLE [MZI-3.5].)
No Troubleshooting completed.