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DTC P2534 (Fuel Pump Control Module)

DTC P2534 (Fuel Pump Control Module)

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 Descriptor

DTC P2534

Ignition 1 Switch Circuit Low Voltage

Diagnostic Fault Information

Circuit Short to Ground Open or High Resistance Short to Voltage Signal Performance
IGN Voltage

P2534

P2534

-

-



Circuit/System Description

The fuel pump control module monitors the ignition voltage circuit in order to determine if the voltage is within the normal operating range.

Conditions for Running the DTC

The engine is running.

Conditions for Setting the DTC

The fuel pump control module detects that the IGN voltage is less than 6.0 V.

Action Taken When the DTC Sets

DTC P2534 is a Type A DTC.

Conditions for Clearing the DTC

DTC P2534 is a Type A DTC.

Reference Information

Schematic Reference

Engine Controls Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Fuel System Description

Electrical Information Reference


• Circuit Testing

• Connector Repairs

• Testing for Intermittent Conditions and Poor Connections

• Wiring Repairs


DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Testing


1. Verify that DTC P0562 is not set.

2. If DTC P0562 is set, refer to Diagnostic Trouble Code (DTC) List - Vehicle .

3. Ignition OFF, disconnect the harness connector at the K27 fuel pump control module.

4. Ignition ON, test for greater than 11 V between the IGN voltage circuit terminal 15 and ground.

5. If less than the specified voltage, test the IGN voltage circuit for a short to ground or an open/high resistance. If the circuit tests normal and the TRANS/IGN/FSCM fuse is open, test the voltage circuit for a short to ground. If the circuit tests normal, test or replace the Run/Crank relay.

6. If all circuits test normal, replace the K27 fuel pump control module.


Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.


• Relay Replacement (Attached to Wire Harness)

• Control Module References for fuel pump control module replacement, setup, and programming