P1E48

DTC P1E46-P1E49

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 P1E46
- 14 Volt Power Module Temperature Sensor 1 High Temperature Sensing Circuit

DTC P1E47
- 14 Volt Power Module Temperature Sensor 1 Circuit High Temperature

DTC P1E48
- 14 Volt Power Module Temperature Sensor 2 High Temperature Sensing Circuit

DTC P1E49
- 14 Volt Power Module Temperature Sensor 2 Circuit High Temperature

Circuit/System Description

The 14V power module, also called the accessory DC power control module, constantly monitors system temperature, to protect against overheat conditions. The module also monitors the function of the temperature sensors. These sensors are internal to the 14V power module and are not serviced separately from the control module.

The 14V power module is an air cooled component. The 14V power module vent fan is controlled by the hybrid powertrain control module 2.

Conditions for Running the DTC

The vehicle is ON.

Conditions for Setting the DTC

The sensor signal is out of range for greater than 5 seconds.

Action Taken When the DTC Sets

* DTCs P1E46 and P1E47 are Type B DTCs.
* DTCs P1E48 and P1E49 are Type C DTCs.

Conditions for Clearing the DTC

* DTCs P1E46 and P1E47 are Type B DTCs.
* DTCs P1E48 and P1E49 are Type C DTCs.

Reference Information
Electrical Information Reference

* Circuit Testing 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

1. Verify that DTC P1EA6 or P1EA7 is not set.

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

2. Program the K1 14V power module. If the DTC resets, replace the K1 14V power module.

Repair Instructions

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

Control Module References Programming and Relearning for Accessory DC Power Control Module, also called the 14V power module, replacement, programming, and setup.