P1E19 2018 GMC Sierra Code - Auxiliary Transmission Fluid Pump Control Module System Voltage Low
Quick Answer
The P1E19 diagnostic trouble code (DTC) for a 2018 GMC Sierra indicates that the Auxiliary Transmission Fluid Pump Control Module is detecting a low voltage condition within the system. Common causes include Faulty auxiliary transmission fluid pump control module, Electrical wiring issues or shorts, Weak or failing battery. 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
- P1E19 2018 GMC Sierra indicates Auxiliary Transmission Fluid Pump Control Module System Voltage Low.
- Common causes
- Common causes include Faulty auxiliary transmission fluid pump control module, Electrical wiring issues or shorts, Weak or failing battery.
- 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.
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Code P1E19 2018 GMC Sierra Description
The P1E19 diagnostic trouble code (DTC) for a 2018 GMC Sierra indicates that the Auxiliary Transmission Fluid Pump Control Module is detecting a low voltage condition within the system. This module is responsible for controlling the operation of the auxiliary transmission fluid pump, which helps to maintain proper fluid pressure and circulation within the transmission system. When the system voltage is low, it can lead to issues with the proper functioning of the transmission pump, potentially causing a decrease in transmission performance, efficiency, and overall drivability of the vehicle.
Common Causes of P1E19 2018 GMC Sierra
- Faulty auxiliary transmission fluid pump control module
- Electrical wiring issues or shorts
- Weak or failing battery
- Alternator malfunction
- Corrosion or poor connections in the electrical system
Symptoms of P1E19 2018 GMC Sierra
- Delayed or harsh shifting
- Transmission slippage
- Overheating of the transmission
- Illumination of the Check Engine Light
- Reduced fuel efficiency
How to Fix P1E19 2018 GMC Sierra
- Perform a thorough inspection of the auxiliary transmission fluid pump control module and associated wiring for any signs of damage or corrosion.
- Test the battery and alternator to ensure they are functioning properly and providing adequate voltage to the system.
- Replace the auxiliary transmission fluid pump control module if it is determined to be faulty.
- Repair any damaged or corroded wiring connections to restore proper voltage to the system.
- Clear the DTC and perform a test drive to verify that the issue has been resolved.
Cost to Fix P1E19 2018 GMC Sierra
The cost of repairing a P1E19 code on a 2018 GMC Sierra can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, replacing the auxiliary transmission fluid pump control module can range from $200 to $500, including parts and labor. Additional costs may apply if there are other underlying electrical issues that need to be addressed. It is recommended to consult with a qualified mechanic or dealership for a more accurate cost estimate based on the specific diagnosis and repair required. Labor rates at auto repair shops typically range from $80 to $150 per hour, but can vary based on location and other factors.
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Frequently Asked Questions about P1E19 2018 GMC Sierra Code
1. What does OBDII code P1E19 mean on a 2018 GMC Sierra?
P1E19 indicates the Auxiliary Transmission Fluid Pump Control Module System is experiencing low voltage, which can affect transmission fluid circulation.
2. What are the common symptoms of code P1E19 in a GMC Sierra?
Symptoms may include transmission overheating, reduced performance, erratic shifting, or warning lights on the dashboard.
3. What causes code P1E19 to appear on a 2018 GMC Sierra?
Causes may include a weak battery, faulty auxiliary transmission fluid pump, damaged wiring, or a malfunctioning control module.
4. Can I drive my 2018 GMC Sierra with code P1E19 active?
It’s not recommended, as transmission fluid circulation may be compromised, potentially leading to overheating or damage.
5. How do I diagnose code P1E19 on a GMC Sierra?
Use an OBDII scanner to confirm the code, inspect the wiring and connectors for damage, check the battery voltage, and test the auxiliary transmission fluid pump.
6. Is code P1E19 related to the main transmission system?
Yes, the auxiliary transmission fluid pump supports the main transmission system by ensuring proper fluid circulation, especially at low speeds.
7. How can I fix code P1E19 on a 2018 GMC Sierra?
Repairs may include replacing damaged wiring, repairing or replacing the auxiliary transmission fluid pump, or addressing issues with the control module.
8. How much does it cost to fix code P1E19 on a GMC Sierra?
Repair costs vary depending on the issue, ranging from $100 for wiring repair to over $500 for pump or module replacement.
9. Can a low battery cause code P1E19 on a GMC Sierra?
Yes, a weak or failing battery can lead to low voltage, triggering the code.
10. Do I need a professional mechanic to fix code P1E19 on my GMC Sierra?
While some repairs, like checking wiring, can be done at home, complex issues with the pump or control module may require professional assistance.
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