DTC No.
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Trouble diagnosis name
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DTC detecting condition
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Possible cause
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P0031
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Air fuel ratio (A/F) sensor 1 heater (bank 1) control circuit low
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The current amperage in the A/F sensor 1 heater circuit is out of the normal range. (An excessively low voltage signal is sent to ECM through the A/F sensor 1 heater.)
|
- Harness or connectors
(The A/F sensor 1 heater circuit is open or shorted.)
- A/F sensor 1 heater
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P0032
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Air fuel ratio (A/F) sensor 1 heater (bank 1) control circuit high
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The current amperage in the A/F sensor 1 heater circuit is out of the normal range. (An excessively high voltage signal is sent to ECM through the A/F sensor 1 heater.)
|
- Harness or connectors
(The A/F sensor 1 heater circuit is shorted.)
- A/F sensor 1 heater
|
P0051
|
Air fuel ratio (A/F) sensor 1 heater (bank 2) control circuit low
|
The current amperage in the A/F sensor 1 heater circuit is out of the normal range. (An excessively low voltage signal is sent to ECM through the A/F sensor 1 heater.)
|
- Harness or connectors
(The A/F sensor 1 heater circuit is open or shorted.)
- A/F sensor 1 heater
|
P0052
|
Air fuel ratio (A/F) sensor 1 heater (bank 2) control circuit high
|
The current amperage in the A/F sensor 1 heater circuit is out of the normal range. (An excessively high voltage signal is sent to ECM through the A/F sensor 1 heater.)
|
- Harness or connectors
(The A/F sensor 1 heater circuit is shorted.)
- A/F sensor 1 heater
|