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Acura DTC

Acura DTC P2237

Manufacture

Acura DTC

Code

P2237

Definition

Rear Air Fuel Ratio (A F) Sensor (Bank 1, Sensor 1) IP Circuit High Voltage

Description

With the engine running the IPB1 terminal voltage is 2 volts or less, or 5.6 volts or more, for at least 15 seconds. The execution time is continuous and DTCs P0135, P2195, P2238, P2243, P2245, P2251, P2252, P2627, P2628 are not active. NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot.

Cause

  • Poor connections or loose terminals at the A F sensor (Sensor 1) and the PCMOpen 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 softwareFaulty PCM

_P2237  There are 0 products.