Hybrid/EV Controls

DTC P2534, P2535, or P2537

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 Instructionsprovides an overview of each diagnostic category.

DTC Descriptor
DTC P2534
- Ignition Switch Run/Start Position Circuit Low

DTC P2535
- Ignition Switch Run/Start Position Circuit High

DTC P2537
- Ignition Switch Accessory Position Circuit Low

Circuit/System Description

The accessory DC power module continuously monitors its 14-volt circuit whenever it is awake. This DTC sets when the 14-volt circuit in the accessory DC power module goes above or below a set level. Accessory DC power module functions will run only when an accessory DC power module enable message from the hybrid powertrain control module is active on the serial data circuit.

Conditions for Running the DTC

* The ignition is ON.
* The system voltage is at least 7 V.

Conditions for Setting the DTC

DTC P2534

The 14 volt circuit is less than 10.0 V.

DTC P2535

The 14 volt circuit is greater than 16.5 V.

DTC P2537

The 14 volt circuit is less than 10.0 V.

Action Taken When the DTC Sets

DTCs P2534, P2535, and P2537 are Type A DTCs.

Conditions for Clearing the DTC

DTCs P2534, P2535, and P2537 are Type A DTCs.

Reference Information
Electrical Information Reference

* Circuit Testing
* Connector Repairs Connector Repairs
* Testing for Intermittent Conditions and Poor Connections Testing for Intermittent Conditions and Poor Connections
* Wiring Repairs Wiring Repairs

DTC Type Reference

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

Circuit/System Verification

TBD

Repair Instructions

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

Control Module References Control Module References for Drive Motor Generator Power Inverter Module replacement, setup, and programming.