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Acura DTC

Acura DTC P2138

Manufacture

Acura DTC

Code

P2138

Definition

APP Sensor A B or 1 2 (Throttle Position (TP) Sensor D E) Incorrect Voltage Correlation (Includes Hybrid Models)

Description

With the ignition ON (II) one of these conditions must be met for at least 300 milliseconds: (1) APP sensor B voltage exceeds the range from 0 V or less to 0.37 V or more when the APP sensor A voltage is 0.37 V. (2) APP sensor B voltage exceeds the range from 2.31 V or less to 2.69 V or more when the APP sensor A voltage is 5 V. The execution time is continuous and DTCs P2122, P2123, P2127, P2128 are not active. NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot.

Cause

  • Poor connections or loose terminals at the APP sensor and the PCMShort circuit between PCM (APSA line) and (APSB line)Faulty accelerator pedal modulePCM needs to be updated with the latest softwareFaulty PCM

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