Mazda CX-9 Grand Touring 2009 Manual page 926

2008 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.7) - Mazda CX-9
Clear DTC from memory using M-
MDS.
Start the engine.
10
Perform the "KOEO/KOER self-
test" (See AFTER REPAIR
PROCEDURE [MZI-3.7].)
Is same DTC present?
VERIFY AFTER REPAIR PROCEDURE
Perform the "AFTER REPAIR
11
PROCEDURE". (See AFTER
REPAIR PROCEDURE [MZI-3.7].)
Are any DTCs present?
DTC P0111 [MZI-3.7]
DTC P0111 (MZI-3.7) DETECTION CONDITIONS AND POSSIBLE CAUSES
DTC P0111 IAT sensor circuit range/performance
DETECTION
CONDITION
POSSIBLE
CAUSE
DIAGNOSTIC PROCEDURE
DTC P0111 (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
2
Verify related Service Bulletins and/or
on-line repair information availability.
Is any related Service Bulletins
2008 Mazda CX-9 Grand Touring
Indicates the IAT rationality test has failed. This DTC indicates that the IAT
value is higher than a calibrated value and could prevent 1 or more on-board
diagnostic (OBD) monitors from completing. The PCM runs this logic after an
engine off and a calibrated soak period (typically 6 hours) This soak period
allows IAT and CHT to stabilize and not differ by more than a calibrated value.
DTC P0111 is set when: the IAT at engine start exceeds the CHT by more than a
calibrated value, typically 17°C {30°F}.
IAT sensor malfunction
INSPECTION
3.7] .)
No Go to next step.
Go to the applicable DTC inspection. (See DTC
Yes
TABLE [MZI-3.7].)
No Troubleshooting completed.
ACTION
Yes Go to the next step.
Record FREEZE FRAME DATA on the repair
No
order, then go to the next step.
Perform repair or diagnosis according to the
available Service Bulletins.
Yes
If the vehicle is not repaired, go to the
next step.