B0005

DTC B0005

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (Initial Inspection and Diagnostic Overview) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (Initial Inspection and Diagnostic Overview) for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions (Initial Inspection and Diagnostic Overview) provides an overview of each diagnostic category.

DTC Descriptor
DTC B0005 00
- In Park Signal Circuit

Diagnostic Fault Information





Circuit/System Description

The park enable signal circuit is a voltage output from the body control module (BCM) only when the vehicle is not in the PARK position. This circuit is for the control of a SEO device relay when equipped with RPO 6J1.

Conditions for Running the DTC

* The system voltage is between 9-16 volts.
* The DTC can only set when the output is actively being requested by the module.

Conditions for Setting the DTC

The DTC will set only when the module requests the output and there is a short to ground.

Action Taken When the DTC Sets

The module output driver will be shut down and not supply voltage to the circuit.

Conditions for Clearing the DTC

* The current DTC will clear when the malfunction is no longer present.
* A history DTC clears when the module ignition cycle counter reaches the reset threshold of 50, without a repeat of the malfunction.

Reference Information
Schematic Reference

Upfitter Provision Schematics (Upfitter Provision Diagrams)
Connector End View Reference

Component Connector End Views (Connector Views)
Description and Operation

Refer to the Supplement - Chevrolet Impala Police Package - Special Equipment Options - Special Equipment Options Standard with Impala Police Package - Description and Operation - Wiring Provisions for 12-Volt Battery Power Supply.
Electrical Information Reference

* Circuit Testing (Component Tests and General Diagnostics)
* Connector Repairs (Component Tests and General Diagnostics)
* Testing for Intermittent Conditions and Poor Connections (Component Tests and General Diagnostics)
* Wiring Repairs (Component Tests and General Diagnostics)

Scan Tool Reference

Control Module References (Programming and Relearning) for Scan Tool Information

Circuit/System Testing

1. Ignition OFF, disconnect the SEO relay controlled by the park enable signal circuit.
2. Connect a test lamp between the park enable signal circuit and battery positive voltage.
3. Ignition ON, transmission in the PARK position. Verify the test lamp does not illuminate.

• If the test lamp illuminates, test for a short to ground on the park enable signal circuit. If the circuit tests normal and the DTC is current, replace the BCM.

4. If the circuit tests normal and the DTC is current, test or replace the SEO relay.

Repair Instructions

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

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