P1631 – Jaguar DTC

Jaguar DTC P1631 – Throttle motor relay, coil circuit OFF – malfunction

DTC P1631 meaning on Jaguar

DTC P1631 for Jaguar refers to the Throttle Motor Relay, Coil Circuit OFF – Malfunction. This diagnostic trouble code indicates an issue with the throttle motor relay or its coil circuit in the Jaguar’s engine management system.

Jaguar DTC P1631 symptoms

Symptoms of DTC P1631 on a Jaguar may include:

• Engine stalling or hesitation
• Reduced engine power
• Difficulty accelerating
• Illuminated check engine light

Jaguar DTC P1631 causes

Common causes of DTC P1631 on a Jaguar include:

• Defective throttle motor relay
• Faulty coil circuit connections
• Wiring issues or shorts
• ECU (Engine Control Unit) malfunction

Jaguar DTC P1631 seriousness

DTC P1631 should be addressed promptly as it can lead to drivability issues and potential safety concerns. Ignoring this code may result in further damage to the engine or related components.

How to diagnose DTC P1631 on Jaguar

To diagnose DTC P1631 on a Jaguar, follow these steps:

1. Use an OBD-II scanner to retrieve the specific fault code.
2. Inspect the throttle motor relay and its connections for any visible damage.
3. Check the coil circuit for continuity and proper voltage.
4. Test the ECU for any faults or communication errors.

How to fix DTC P1631 on Jaguar

To fix DTC P1631 on a Jaguar, consider the following:

1. Replace the faulty throttle motor relay if necessary.
2. Repair any damaged wiring or connections in the coil circuit.
3. If the ECU is faulty, consider reprogramming or replacing it.
4. Clear the fault code and test drive the vehicle to ensure the issue is resolved.

How to erase DTC P1631 on Jaguar

To erase DTC P1631 on a Jaguar:

1. Use an OBD-II scanner to clear the fault code.
2. Ensure the underlying issue has been addressed before clearing the code.
3. Perform a test drive to verify that the code does not return.