DTC P1E46-P1E49
Diagnostic Instructions
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 14 V 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 14 V power module and are not serviced separately from the control module.
The 14 V power module is an air cooled component. The 14 V 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 more 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
DTC Type Reference
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Circuit/System Verification
- Verify that DTC P1EA6 or P1EA7 is not set.
- Program the K1 14 V power module. If the DTC resets, replace the K1 14 V power module.
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for Accessory DC Power Control Module, also called the 14 V power module, replacement, programming and set-up.
| ©© Copyright Chevrolet. All rights reserved |
