P1291 – Chrysler DTC

Chrysler DTC P1291 – No Temp Rise Seen From Fuel Heaters

DTC P1291 meaning on Chrysler

DTC P1291 on a Chrysler indicates “No Temp Rise Seen From Fuel Heaters.” This diagnostic trouble code is related to the fuel heaters in the vehicle.

Chrysler DTC P1291 symptoms

Symptoms of DTC P1291 on a Chrysler may include:

• Check Engine Light illuminated
• Reduced engine performance
• Poor fuel economy

Chrysler DTC P1291 causes

Possible causes of DTC P1291 on a Chrysler include:

• Defective fuel heater
• Wiring issues related to the fuel heater circuit
• Faulty fuel heater relay

Chrysler DTC P1291 seriousness

While DTC P1291 may not cause immediate drivability issues, it is important to address this code promptly to prevent potential fuel system problems and ensure optimal engine performance.

How to diagnose DTC P1291 on Chrysler

To diagnose DTC P1291 on a Chrysler, follow these steps:

1. Use a scan tool to retrieve the fault codes and freeze frame data.
2. Inspect the fuel heater and related wiring for any visible damage or corrosion.
3. Test the fuel heater resistance to determine if it is within specifications.
4. Check the fuel heater relay for proper operation.

How to fix DTC P1291 on Chrysler

To fix DTC P1291 on a Chrysler, consider the following:

1. Replace the faulty fuel heater if it is determined to be the cause.
2. Repair any damaged wiring in the fuel heater circuit.
3. Replace the fuel heater relay if found to be defective.

How to erase DTC P1291 on Chrysler

To erase DTC P1291 on a Chrysler:

1. Use a scan tool to clear the fault codes from the vehicle’s memory.
2. Ensure the underlying issue causing the code has been resolved before clearing the code.

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