P0A89

DTC P0A89

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

* Review Strategy Based Diagnosis Strategy Based Diagnosis for an overview of the diagnostic approach.

* Diagnostic Procedure Instructions Diagnostic Procedure Instructions provides an overview of each diagnostic category.

DTC Descriptor

DTC P0A89

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14 Volt Power Module Current Sensor High Current

Circuit/System Description

The 14V power module, also called the accessory DC power control module, monitors output current. This sensor is internal to the 14V power module and is not serviced separately from the control module.

Conditions for Running the DTC

The vehicle is ON.

Conditions for Setting the DTC

The sensor signal is out of range for greater than 5 seconds.

Action Taken When the DTC Sets

* The 14V power module stops supplying power to the 12V system.

* DTC P0A89 is a Type C DTC.

Conditions for Clearing the DTC

DTC P0A89 is a Type C DTC.

Reference Information

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions Powertrain Diagnostic Trouble Code (DTC) Type Definitions

Circuit/System Verification

If the DTC is set, program the K1 14V power module. If the DTC resets, replace the K1 14V power module.

Repair Instructions

Perform the Diagnostic Repair Verification Verification Tests after completing the diagnostic procedure.

Control Module References Programming and Relearning for Accessory DC Power Control Module, also called the 14V Power Module, replacement, programming, and setup.