P1E49 GMC Code - 14 Volt Power Module Temperature Sensor 2 Circuit High Temperature
Quick Answer
The 14 V power module, also called the accessory DC power control module, constantly monitors system temperature to protect against overheat conditions. Common causes include Program 14 V Power Module, Faulty 14 V Power Module, 14 V Power Module harness is open or shorted. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P1E49 GMC indicates 14 Volt Power Module Temperature Sensor 2 Circuit High Temperature.
- Common causes
- Common causes include Program 14 V Power Module, Faulty 14 V Power Module, 14 V Power Module harness is open or shorted.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P1E49 GMC Description
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.
What are the Possible Causes of the DTC P1E49 GMC?
- Program 14 V Power Module
- Faulty 14 V Power Module
- 14 V Power Module harness is open or shorted
- 14 V Power Module circuit poor electrical connection
How to Fix the DTC P1E49 GMC?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1E49 GMC code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P1E49 GMC Code
What does the OBDII code P1E49 mean for a GMC vehicle?
P1E49 indicates an issue with the 14 Volt Power Module Temperature Sensor 2 reporting a high temperature, suggesting a potential fault in the sensor circuit or related components.
What are the common symptoms of code P1E49 in a GMC?
Common symptoms include warning lights on the dashboard, reduced charging system performance, potential battery issues, or reduced fuel efficiency in hybrid or electric models.
What causes the P1E49 code to appear?
Possible causes include a faulty temperature sensor, damaged wiring or connectors in the circuit, overheating of the 14-volt power module, or a failing power module.
Can I continue driving my GMC with the P1E49 code?
Driving with this code may be possible in the short term, but it’s recommended to address the issue promptly to avoid potential damage to the charging system or power module.
How is the P1E49 code diagnosed?
A technician typically uses a scan tool to confirm the code, inspects the temperature sensor and wiring for damage, and tests the power module for proper operation.
What repairs are commonly performed to fix the P1E49 code?
Repairs may include replacing the faulty temperature sensor, repairing or replacing damaged wiring, cleaning corroded connectors, or, in rare cases, replacing the 14-volt power module.
How much does it cost to repair a P1E49 code?
The repair cost can vary, but replacing a temperature sensor typically costs between $100 and $300, while more extensive repairs, such as replacing the power module, can cost significantly more.
Can a bad battery cause the P1E49 code?
While an aging or failing battery is not a direct cause, it can contribute to charging system issues that might exacerbate the problem.
What tools are needed to troubleshoot the P1E49 code?
Common tools include an OBDII scan tool, a multimeter for testing voltage and continuity, and possibly a thermal imaging device to check for overheating components.
Is the P1E49 code unique to GMC vehicles?
While the code is specific to GMC and other GM vehicles, similar codes may appear in other manufacturers with slightly different descriptions.
Discuss the causes and fixes for P1E49 GMC OBDII Code
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