DTC P0463 [MZI-3.7]
DTC P0463 (MZI-3.7) DETECTION CONDITIONS AND POSSIBLE CAUSES
DIAGNOSTIC PROCEDURE
DTC P0463 (MZI-3.7) DIAGNOSTIC PROCEDURE
cluster.
z
Is other DTCs present?
No
Go to the next step.
5
VERIFY TROUBLESHOOTING OF
DTC P0462 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/KOER self-
test". (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.
6
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 P0463
Fuel gauge sender unit circuit high input
DETECTION
CONDITION
z
The PCM monitors the fuel level input communications network message-for a
concern. The test fails if the fuel level input signal is more than the maximum
allowable calibrated parameter for a specified fuel-fill percentage in the fuel
tank.
POSSIBLE
CAUSE
z
Fuel pump malfunction
z
Incorrectly installed fuel gauge
z
Instrument cluster malfunction
z
Fuel level input signal circuit malfunction
z
Overfilled fuel tank
z
Fuel gauge malfunction
STEP
INSPECTION
ACTION
2008 Mazda CX-9 Grand Touring
2008 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.7) - Mazda CX-9
Microsoft
Sunday, November 15, 2009 10:08:38 AM
Page 232
© 2005 Mitchell Repair Information Company, LLC.
