DTC P115E [MZI-3.7]
DTC P115E (MZI-3.7) DETECTION CONDITIONS AND POSSIBLE CAUSES
DIAGNOSTIC PROCEDURE
DTC P115E (MZI-3.7) DIAGNOSTIC PROCEDURE
4
z
Verify that all disconnected
connectors reconnected.
z
Clear DTC from memory using M-
MDS.
z
Start engine.
z
Perform "KOEO/KOER self-
test" (See
KOEO/KOER SELF
TEST [MZI-3.7]
.)
z
Is same DTC present?
Yes
Replace PCM, then go to the next step. (See
PCM REMOVAL/INSTALLATION [MZI-
3.7]
.)
No
Go to the next step.
5
VERIFY AFTER REPAIR
PROCEDURE
z
Perform "AFTER REPAIR
PROCEDURE". (See
AFTER
REPAIR PROCEDURE [MZI-
3.7]
.)
z
Are any DTC present?
Yes
Go to the applicable DTC inspection. (See
DTC
TABLE [MZI-3.7]
.)
No
Troubleshooting completed.
DTC P115E
Throttle actuator control throttle body air flow trim at max limit
DETECTION
CONDITION
z
During idle, the PCM monitors the throttle angle and air flow. If the air flow is
determined to be less than expected, the PCM adjusts the throttle angle to
compensate. The air flow reduction is typically the result of sludge buildup
around the throttle plate. This DTC indicates the PCM has reached the maximum
allowed compensation and is no longer able to compensate for the build up.
POSSIBLE
CAUSE
z
Sludge around the throttle plate
STEP
INSPECTION
ACTION
1
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
z
Has FREEZE FRAME DATA been
recorded?
Yes Go to the next step.
No
Record FREEZE FRAME DATA on the repair
order, then go to the next step.
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
z
Verify related Service Bulletins
Yes
Perform repair or diagnosis according to the
available Service Bulletins.
2008 Mazda CX-9 Grand Touring
2008 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.7) - Mazda CX-9
Microsoft
Sunday, November 15, 2009 10:08:40 AM
Page 317
© 2005 Mitchell Repair Information Company, LLC.
