P1E46 GMC Code - 14 Volt Power Module Temperature Sensor 1 High Temperature Sensing Circuit
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
- P1E46 GMC indicates 14 Volt Power Module Temperature Sensor 1 High Temperature Sensing Circuit.
- 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 P1E46 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 P1E46 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 P1E46 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 P1E46 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 P1E46 GMC Code
1. What does the OBDII code P1E46 on a GMC vehicle mean?
The P1E46 code indicates an issue with the 14 Volt Power Module Temperature Sensor 1, specifically a high temperature sensing circuit problem.
2. What are the common symptoms of the P1E46 code?
Symptoms may include a check engine light, reduced fuel efficiency, electrical system malfunctions, or the vehicle entering limp mode.
3. What causes the P1E46 code to be triggered?
Common causes include a faulty 14 Volt Power Module temperature sensor, damaged wiring or connectors, or an issue with the power module itself.
4. Can I drive my GMC vehicle with the P1E46 code?
Driving with this code is not recommended, as it may lead to further electrical or power module damage and reduced vehicle performance.
5. How do I diagnose the P1E46 code?
Diagnose the code by using an OBDII scanner to confirm the fault, inspecting the temperature sensor and its wiring, and checking for signs of overheating in the power module.
6. How can I fix the P1E46 code?
Repairs may involve replacing the temperature sensor, repairing damaged wiring, or replacing the 14 Volt Power Module if necessary.
7. What tools are needed to repair the P1E46 code?
You’ll need an OBDII scanner, a multimeter for electrical testing, and basic automotive tools to inspect and repair components.
8. Is the P1E46 code common in GMC vehicles?
While not extremely common, it can occur in GMC vehicles with advanced electrical systems that use a 14 Volt Power Module.
9. How much does it cost to fix the P1E46 code?
Repair costs can range from $100 to $500 or more, depending on whether the temperature sensor, wiring, or power module needs replacement.
10. Can a software update fix the P1E46 code?
In some cases, a software update to the vehicle's control module may resolve the issue if it’s related to system calibration.
Discuss the causes and fixes for P1E46 GMC OBDII Code
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