DTC P0232 [MZI-3.7]
DTC P0232 (MZI-3.7) DETECTION CONDITIONS AND POSSIBLE CAUSES
INSPECTION
.)
z
Is there any malfunction?
No
Go to the next step.
9
VERIFY TROUBLESHOOTING OF DTC P0231
HAS BEEN COMPLETED
z
Verify that all disconnected connectors
reconnected.
z
Clear DTC from memory using M-MDS.
z
Start the engine.
z
Perform the "KOEO/KOER self-test" (See
KOEO/KOER SELF TEST [MZI-3.7]
.)
z
Is same DTC present?
Yes
Replace the PCM, then go to the
next step.
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 P0232
FP secondary circuit high
DETECTION
CONDITION
z
The PCM monitors the fuel pump monitor circuit. This test fails when the PCM detects
voltage on the fuel pump monitor circuit while the fuel pump is commanded OFF. The
fuel pump monitor circuit is wired to a pull-up voltage inside the PCM. The fuel pump
monitor circuit goes high if, with the key ON, engine OFF and the fuel pump
commanded OFF, the fuel pump monitor/fuel pump power circuit loses its path to
ground through the fuel pump. The fuel pump monitor circuit also goes high if the fuel
pump monitor/fuel pump power circuit is short to voltage.
POSSIBLE
CAUSE
z
Fuel pump relay malfunction
z
Fuel pump malfunction
z
Connector or terminal malfunction
z
Open circuit between fuel pump terminal B and PCM terminal 1Q
z
Fuel pump connector for poor connection
z
Short to power supply between fuel pump terminal B and PCM terminal 1Q
z
Short to power supply between fuel pump relay terminal D and PCM terminal 1Q
2008 Mazda CX-9 Grand Touring
2008 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.7) - Mazda CX-9
Microsoft
Sunday, November 15, 2009 10:08:36 AM
Page 146
© 2005 Mitchell Repair Information Company, LLC.
