Mazda CX-9 Grand Touring 2009 Manual page 936

2008 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.7) - Mazda CX-9
POSSIBLE
CAUSE
DIAGNOSTIC PROCEDURE
DTC P0116 (MZI-3.7) DIAGNOSTIC PROCEDURE
STEP
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
Has FREEZE FRAME DATA been
recorded?
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
Verify related Service Bulletins and/or
2
on-line repair information availability.
Is any related Service Bulletins
available?
VERIFY RELATED PENDING CODE OR
STORED DTC
3
Verify the related PENDING CODE or
stored DTCs.
Are other DTCs present?
INSPECT CHT SENSOR
Inspect the CHT sensor. (See
CYLINDER HEAD
4
TEMPERATURE (CHT) SENSOR
INSPECTION [MZI-3.7] .)
Are there any malfunction?
VERIFY TROUBLESHOOTING OF DTC
P0116 HAS BEEN COMPLETED
Make sure to reconnect all disconnected
connectors.
5
Clear DTC from memory using M-
MDS.
Start the engine.
Perform the "KOEO/KOER self-
test" (See KOEO/KOER SELF TEST
[MZI-3.7].)
2008 Mazda CX-9 Grand Touring
Cooling system malfunction
CHT sensor malfunction
INSPECTION ACTION
Yes Go to the next step.
Record FREEZE FRAME DATA on the
No
repair order, then go to the next step.
Perform repair or diagnosis according to the
Yes available Service Bulletins.
If the vehicle is not repaired, go to next step.
No Go to the next step.
Go to appropriate DTC inspection. (See DTC
Yes
TABLE [MZI-3.7].)
No Go to the next step.
Replace the CHT sensor, then go to the next
Yes
step.
No Go to the next step.
Replace the PCM, then go to next step. (See
Yes PCM REMOVAL/INSTALLATION [MZI-
3.7] .)
No Go to the next step.