DTC P2626: O2 Sensor Positive Current Trim Circuit/Open (Bank 1 Sensor 1)
P2626 - O2 SENSOR POSITIVE CURRENT TRIM CIRCUIT/OPEN (BANK 1 SENSOR 1)
| Description: During deceleration fuel shut-off (DFSO) the powertrain control module (PCM) monitors the integrity of the universal heated oxygen sensor (HO2S) UO2SPCT circuit by comparing the actual oxygen sensor voltage signal to an expected oxygen sensor voltage signal. The test fails when the actual oxygen sensor voltage exceeds the maximum expected voltage threshold for a specified amount of time. | |||
Possible Causes:
|
|||
| Diagnostic Aids: | |||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to PINPOINT TEST DZ . | ||