P163E

DTC P163E

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 P163E
- Glow Plug Control Module Overtemperature

Circuit/System Description

The glow plug control module has the ability to perform internal diagnostics for voltage and output state of the glow plugs. If the internal temperature of the glow plug control module is greater than 85°C (185°F) and the engine temperature is less the 60°C (140°F), this DTC will set. The glow plug control module will send a message to the engine control module (ECM) to set this DTC.

Conditions for Running the DTC

* The ignition is ON.
* DTC P163E runs continuously.

Conditions for Setting the DTC

The glow plug control module temperature is greater than 85°C (185°F), and the engine coolant temperature is less than 60°C (140°F).

Action Taken When the DTC Sets

DTC P163E is a Type B DTC.

Conditions for Clearing the DTC

DTC P163E is a Type B DTC.

Diagnostic Aids

Ensure the glow plug control module is clear of any aftermarket devices.

Reference Information
Schematic Reference

Engine Controls Schematics ([1][2]Electrical Diagrams)
Connector End View Reference

Component Connector End Views (Connector End Views By Name)
Description and Operation

Glow Plug System Description (Description and Operation)
Electrical Information Reference

* Circuit Testing (Circuit Testing)
* Connector Repairs (Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (Wiring Repairs)

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions (Powertrain Diagnostic Trouble Code (DTC) Type Definitions)
Scan Tool Reference

Control Module References (Programming and Relearning) for scan tool information

Circuit/System Verification

1. If you cannot duplicate the conditions, refer to Testing for Intermittent Conditions and Poor Connections (Testing for Intermittent Conditions and Poor Connections).
2. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.

Circuit/System Testing

Note: Verify there are no aftermarket air flow restrictions near the glow plug control module.

Verify there are no other DTC's present.

If other DTC's are present, refer to Diagnostic Trouble Code (DTC) List - Vehicle (Diagnostic Trouble Code (DTC) List - Vehicle).
If there are no other DTC's and DTC P163E is present, replace the K34 glow plug control module.

Repair Instructions

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

Control Module References (Programming and Relearning) for glow plug control module replacement, setup, and programming