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DTC P160A

DTC P160A

Diagnostic Instructions


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

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

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


DTC Descriptor

DTC P160A 00

Vehicle Speed Limit Not Programmed

Circuit/System Description

This diagnostic addresses if the ECM is not programmed with the speed limit.

Conditions for Running the DTC


• The ignition is ON.

• The DTC runs continuously once the above condition is met.


Conditions for Setting the DTC

The ECM detects that the speed limit is not programmed in the EEPROM for greater than 1 second.

Action Taken When the DTC Sets

DTC P160A is a Type A DTC.

Conditions for Clearing the DTC

DTC P160A is a Type A DTC.

Reference Information

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions

Circuit/System Testing

Program the ECM. If DTC P160A sets after programming, perform the following steps:


• Ensure that all tool connections are secure.

• Ensure that the programming equipment is operating correctly.

• Ensure the correct software and the correct calibrations are being used.

• Attempt to program the K20 Engine Control Module.

• If DTC P160A sets, replace the K20 Engine Control Module.


Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Control Module References