Mazda CX-9 Grand Touring 2007 Manual page 428

2007 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.5) - CX-9
DIAGNOSTIC PROCEDURE
DTC P0123 (MZI-3.5) DIAGNOSTIC PROCEDURE
STEP
1 VERIFY FREEZE FRAME DATA
HAS BEEN RECORDED
Has FREEZE FRAME DATA
been recorded?
2 VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
Verify related Service Bulletins
and/or on-line repair information
availability.
Is any related Service Bulletins
available?
3 INSPECT TP SENSOR
CONNECTOR FOR POOR
CONNECTION
Turn the ignition switch off.
Disconnect the throttle body
connector.
Inspect for poor connection (such
as damaged/pulled-out pins,
corrosion).
Are there any malfunction?
4 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?
5 INSPECT TP SIGNAL CIRCUIT
FOR SHORT TO POWER SUPPLY
Turn the ignition switch to the ON
position (Engine off).
Measure the voltage between
Throttle body connector terminal
2007 Mazda CX-9 Grand Touring
INSPECTION ACTION
Yes Go to the next step.
No Record FREEZE FRAME DATA on the
repair order, then go to the next step.
Yes Perform repair or diagnosis according to
the available Service Bulletins.
If the vehicle is not repaired, go to
the next step.
No Go to the next step.
Yes Repair or replace suspected part, then go to
Step 8.
No Go to the next step.
Yes Repair or replace suspected part, then go to
Step 8.
No Go to the next step.
Yes Repair or replace suspected part, then go to
Step 8.