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DTC 10 or 11

DTC 10 or 11

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 Descriptors

DTC 10

Parking Heater Overvoltage - Shutdown

DTC 11

Parking Heater Undervoltage - Shutdown

Circuit/System Description

The parking heater controller monitors the system voltage to ensure that the voltage stays within the proper range.

Conditions for Running the DTC

The vehicle must not be ON. Battery voltage must be between 10-15 V.

Conditions for Setting the DTC

10

The parking heater controller detects voltage greater than 15 V for at least 20 s without interruption.

11

The parking heater controller detects voltage less than 10 V for at least 20 s without interruption.

Action Taken When the DTC Sets

The parking heater will not operate.

Conditions for Clearing the DTC


• This DTC will be current for as long as the fault is present.

• When the fault is no longer present, the DTC will be a history DTC.

• A history DTC will clear after 50 ignition cycles.


Diagnostic Aids

If DTC P0562 or P0563 are current, diagnose those DTCs first.

Reference Information

Schematic Reference

HVAC Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Fuel Operated Heater Description and Operation

Electrical Information Reference


• Circuit Testing

• Connector Repairs

• Testing for Intermittent Conditions and Poor Connections

• Wiring Repairs


Circuit/System Verification

Ignition OFF, command the parking heater ON and OFF with the remote control. Verify the parking heater turns ON and OFF with no DTCs.

Circuit/System Testing


1. Ignition OFF, separate the K87 Parking Heater Control Module from the X150 Parking Heater Harness & Parking Heater Assembly Harness.

2. Test for 10-15 V between harness connector terminal 1 and ground.

3. If not in the specified range, test power circuit for an open/high resistance.

4. Test for 10-15 V between harness connector terminal 1 and terminal 2.

5. If not in the specified range, test the ground circuit for an open/high resistance.

6. If all circuits test normal, replace the K87 Parking Heater Control Module.


Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.