DTC P0053, P0054, P0059, P0060 [MZI-3.5]
DTC P0053, P0054, P0059, P0060 (MZI-3.5) DETECTION CONDITION AND POSSIBLE CAUSES
(See
AFTER REPAIR
PROCEDURE [MZI-3.5]
.)
z
Are any DTC present?
No
Troubleshooting completed.
DTC P0053
P0053: Front HO2S (RH) heater resistance
DTC P0054
P0054: Rear HO2S (RH) heater resistance
DTC P0059
P0059: Front HO2S (LH) heater resistance
DTC P0060
P0060: Rear HO2S (LH) heater resistance
DETECTION
CONDITION
z
Heater current requirements too low or high in the heated oxygen sensor (HO2S) h
control circuit.
POSSIBLE CAUSE
z
Open circuit between HO2S terminal C and main relay No.1 terminal E
z
Short to ground circuit between HO2S terminal A and body ground
z
HO2S circuits are shorted each other
z
DTC P0053: Open circuit between front HO2S (RH) terminal A and PCM termina
z
DTC P0054: Open circuit between rear HO2S (RH) terminal A and PCM terminal
z
DTC P0059: Open circuit between front HO2S (LH) terminal A and PCM termina
z
DTC P0060: Open circuit between rear HO2S (LH) terminal A and PCM terminal
z
HO2S heater malfunction
2007 Mazda CX-9 Grand Touring
2007 ENGINE PERFORMANCE On-Board Diagnostic (MZI-3.5) - CX-9
Microsoft
Sunday, November 15, 2009 9:26:29 AM
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