DTC P2255 Acura
Front A F Sensor (Bank 2, Sensor 1) VS Circuit Low Voltage
Front A F Sensor (Bank 2, Sensor 1) VS Circuit Low Voltage
Description
With engine running the VSB2 terminal voltage is 0.3 V or less, and the IPB2 terminal voltage is 1 V or more, for at least 5 seconds after the sensor is active, 85 seconds before the sensor becomes active. NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot.
Cause and Solution
Poor connections or loose terminals at the A F sensor (Sensor 1) and the PCM
Short circuit between the PCM and the A F sensor (Sensor 1)
Faulty A F sensor (Sensor 1)
PCM may need to be updated with the latest software
Video Guide
Diagnostic Info
- DTC Code: P2255
- Brand: Acura