P0143 OBD Trouble Code
1 result found
| Type | Powertrain - Fuel and Air Metering - ISO/SAE Controlled |
|---|---|
| Description | HO2S Shorted To Ground Conditions: |
| Location | Bank 1 Sensor 3 |
| Cause | ECT sensor input more than 170°F on the previous key on cycle, cold engine startup completed (ECT sensor input under 90-98°F, BTS input reading ±59°F of ECT) or BTS within 27°F of the ECT input, then test started and the PCM detected that the rear HO2S-13 signal was less than 156 mv for 28 seconds after startup or prior to the heater test. |
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