P062B

DTC P062B

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 P062B
- Control Module Fuel Injector Control Performance

Description

This diagnostic applies to internal microprocessor integrity conditions within the engine control module (ECM).

The ECM monitors its ability to read and write to the memory. It also monitors a timing function.

Conditions for Running the DTC

* The engine is running or cranking.
* The system voltage is between 8-18.1 volts.
* DTC P062B runs continuously when the above conditions are met.

Conditions for Setting the DTC

The ECM detects an internal failure or a short to ground on a fuel injector circuit for more than 10 seconds.

Actions Taken When the DTC Sets

DTC P062B is a Type B DTC.

Conditions for Clearing the MIL/DTC

DTC P062B is a Type B DTC.

Reference Information
Schematic Reference

Engine Controls Schematics (Electrical Diagrams)
Connector End View Reference

Component Connector End Views (Connector Views)
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)

DTC Type Reference

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

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

Circuit/System Testing

Test the fuel injector high voltage supply circuits and the fuel injector high voltage control circuits for a short to ground.

If all circuits test normal, replace the ECM.

Repair Instructions

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

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