Engine-CodesGeneric – P1E49

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

Quick Answer

The P1E49 code indicates a problem with the 14 Volt Power Module Temperature Sensor 2 circuit, specifically a high temperature reading. Common causes include Faulty temperature sensor, Wiring or connection issues in the circuit, Overheating of the 14 Volt Power Module. 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 indicates 14 Volt Power Module Temperature Sensor 2 Circuit High Temperature.
Common causes
Common causes include Faulty temperature sensor, Wiring or connection issues in the circuit, Overheating of the 14 Volt Power Module.
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.
Table of contents Created and updated by William Orellana on Aug 19, 2024
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Code P1E49 Description

The P1E49 code indicates a problem with the 14 Volt Power Module Temperature Sensor 2 circuit, specifically a high temperature reading. The 14 Volt Power Module is responsible for regulating the voltage in the vehicle's electrical system, ensuring that components receive the appropriate power levels. The Temperature Sensor 2 is used to monitor the temperature of the module to prevent overheating. When this sensor detects a high temperature that is outside the normal operating range, it triggers the P1E49 code.

OBDII Code P1E49 - 14 Volt Power Module Temperature Sensor 2 Circuit High Temperature
P1E49 Code - 14 Volt Power Module Temperature Sensor 2 Circuit High Temperature

Common Causes of P1E49

  1. Faulty temperature sensor
  2. Wiring or connection issues in the circuit
  3. Overheating of the 14 Volt Power Module
  4. Electrical system overload
  5. Software or programming issues

Symptoms of P1E49

  1. Check engine light illuminated on the dashboard
  2. Fluctuating voltage readings on the gauge cluster
  3. Electrical system malfunctions, such as dimming lights or erratic behavior
  4. Battery not charging properly
  5. Overheating of the 14 Volt Power Module

How to Fix P1E49

  1. Diagnose the issue by using a diagnostic scanner to retrieve the fault codes and inspect the temperature sensor and circuit connections.
  2. Test the temperature sensor for proper operation and replace if necessary.
  3. Check the wiring and connections in the circuit for any damage or corrosion, repairing or replacing as needed.
  4. Inspect the 14 Volt Power Module for overheating and address any underlying causes, such as electrical system overload.
  5. Clear the fault codes, reset the system, and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P1E49

The cost of repairing a P1E49 code can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the cost of parts for replacing a temperature sensor and repairing wiring or connections can range from $100 to $300. Labor costs at an auto repair shop can add an additional $100 to $300, bringing the total repair cost to approximately $200 to $600. It's important to factor in diagnostic time and labor rates, which can vary based on location and other factors.

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Code P1E49 Information for Specific Makes

  • P1E49 Acura — Slave Cylinder Drive Motor Current Malfunction Stuck
  • P1E49 Buick — 14 Volt Power Module Temperature Sensor 2 Circuit High Temperature
  • P1E49 Cadillac — 14 Volt Power Module Temperature Sensor 2 Circuit High Temperature
  • P1E49 Chevrolet — 14 Volt Power Module Temperature Sensor 2 Circuit High Temperature
  • P1E49 GMC — 14 Volt Power Module Temperature Sensor 2 Circuit High Temperature
  • P1E49 Honda — Slave Cylinder Drive Motor Current Malfunction Stuck
  • P1E49 Saturn — 14 Volt Power Module Temperature Sensor 2 Circuit High Temperature
About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1E49 Code

1. What does the OBDII code P1E49 mean?

P1E49 indicates that the 14 Volt Power Module’s Temperature Sensor 2 is detecting a temperature reading that is abnormally high or outside the expected range.

2. What are the common symptoms of the P1E49 code?

Symptoms may include an illuminated check engine light, reduced charging system performance, issues with the 14V power module, or potential electrical system malfunctions.

3. What causes the P1E49 code to be triggered?

Common causes include a faulty 14 Volt Power Module temperature sensor, damaged wiring or connectors, overheating of the module, or a malfunctioning power module itself.

4. How can I diagnose the P1E49 code?

Start by inspecting the wiring and connectors for damage or corrosion, check the temperature sensor's resistance values, and use a scan tool to monitor live data from the sensor and power module.

5. Is it safe to drive with the P1E49 code?

Driving may still be possible, but it’s not recommended, as overheating of the 14 Volt Power Module could lead to electrical failures or further damage to the system.

6. How can I fix the P1E49 code?

Repairs may include replacing the faulty temperature sensor, repairing or replacing damaged wiring or connectors, or replacing the 14 Volt Power Module if it is defective.

7. Can a blown fuse cause the P1E49 code?

A blown fuse is unlikely to directly cause this code, but electrical issues related to the sensor's circuit could result in similar faults.

8. How much does it cost to repair the P1E49 code?

Repair costs vary depending on the exact issue but can range from $50 for minor wiring repairs to $500 or more if the entire power module needs replacement.

9. Can extreme weather conditions trigger the P1E49 code?

Yes, extreme heat or poor cooling system function can contribute to overheating and potentially trigger the code.

10. Do I need a professional mechanic to fix the P1E49 code?

While experienced DIYers may be able to handle simple repairs, diagnosing and replacing the 14 Volt Power Module may require professional expertise.

Discuss the causes and fixes for P1E49 OBDII Code

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