Mazda CX-9 Grand Touring 2007 Manual page 434

2007 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.5) - CX-9
DTC P0132, P0138, P0152, P0158 (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 VISUALLY INSPECT HO2S
WIRING HARNESS
NOTE:
Disconnect the HO2S wiring
harness connector.
Turn the ignition switch off.
Disconnect the HO2S connector.
Visually inspect the HO2S wiring
harness.
Check the connector (both
halves) for contamination
Make sure the connector
pins are fully seated
Is a concern present?
4 INSPECT WHETHER HO2S
SIGNAL LEVEL IS TOO HIGH
Connect the HO2S connector.
Turn the ignition switch to the ON
position (Engine running).
Access the PCM and monitor the
HO2S signal PID.
Is the voltage less than 1.1 V?
5 PERFORM THOROUGH WIGGLE
TEST ON HO2S WIRING HARNESS
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 if necessary. Go to Step 9.
No Go to the next step.
Yes Go to Step 6.
No Go to the next step.
Yes Repair if necessary. Go to Step 9.