P062B

DTC P062B

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 P062B
- Control Module Fuel Injector Control Performance

Circuit/System Description

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

Conditions for Running the DTC

* The engine is running or cranking.
* The ignition voltage is between 8-18 V.
* DTC P062B runs continuously when the conditions are met for greater than 500 mS.

Conditions for Setting the DTC

The ECM detects a condition with the integrated circuits of the fuel injector driver module or a short to ground on a fuel injector circuit for greater than 4 s, or a cumulative of 30 s.

Action Taken When the DTC Sets

DTC P062B is a Type B DTC.

Conditions for Clearing the DTC

DTC P062B is a Type B DTC.

Reference Information
Description and Operation

Engine Control Module Description (Engine Control Module Description)
DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions (Powertrain Diagnostic Trouble Code (DTC) Type Definitions)

Circuit/System Verification

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 engine control module replacement, setup, and programming