DTC P2112 [MZI-3.7]
DTC P2112 (MZI-3.7) DETECTION CONDITIONS AND POSSIBLE CAUSES
8
z
Turn the ignition switch off.
z
Disconnect the throttle body and PCM
connector.
z
Measure resistance between throttle actuator
terminal A and B.
z
Is the resistance more than 10 kilohms?
No
Repair or replace suspected part, then go
to the next step.
9
VERIFY TROUBLESHOOTING OF DTC
P2111 HAS BEEN COMPLETED
z
Verify that all disconnected connectors
reconnected.
z
Clear the DTC from the PCM memory using
the M-MDS.
z
Perform the "KOEO or KOER self-test" using
the M-MDS.
(See
KOEO/KOER SELF TEST [MZI-
3.7]
.)
z
Is the PENDING CODE for the DTC present?
Yes
Replace the PCM, then go to the next
step. (See
PCM
REMOVAL/INSTALLATION [MZI-
3.7]
.)
No
Go to the next step.
10
VERIFY AFTER REPAIR PROCEDURE
z
Perform the "AFTER REPAIR
PROCEDURE". (See
AFTER REPAIR
PROCEDURE [MZI-3.7]
.)
z
Are any DTCs present?
Yes Go to the applicable DTC inspection.
(See
DTC TABLE [MZI-3.7]
.)
No
Troubleshooting completed.
DTC P2112
Throttle actuator control system - stuck closed
DETECTION
CONDITION
z
This PCM fault status indicates the throttle plate is at a lower angle than
commanded.
POSSIBLE CAUSE
z
Binding throttle body, stuck open
z
Throttle actuator control circuits are cross-wired
z
Throttle actuator control circuits are shorted each other
z
PCM malfunction
2008 Mazda CX-9 Grand Touring
2008 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.7) - Mazda CX-9
Microsoft
Sunday, November 15, 2009 10:08:42 AM
Page 374
© 2005 Mitchell Repair Information Company, LLC.
