DTC P0461 [MZI-3.7]
DTC P0461 (MZI-3.7) DETECTION CONDITIONS AND POSSIBLE CAUSES
DIAGNOSTIC PROCEDURE
DTC P0461 (MZI-3.7) DIAGNOSTIC PROCEDURE
z
Is other DTCs present?
5
VERIFY TROUBLESHOOTING OF
DTC P0460 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 P0461
Fuel gauge sender unit range/performance problem
DETECTION
CONDITION
z
The PCM monitors the fuel level input communications network message for a
concern. The test fails when the fuel level input signal repeatedly moves in and
out of range, exceeding the minimum or maximum allowable calibrated
parameters for a specified fuel fill percentage in the fuel tank.
POSSIBLE
CAUSE
z
Excessive electrical noise
z
Fuel level input signal circuit malfunction
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 the FREEZE FRAME DATA on the repair
order, then go to the next step.
VERIFY REPAIR INFORMATION
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 229
© 2005 Mitchell Repair Information Company, LLC.
