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P2107, P2108 Throttle actuator control module processor, performance failure

Land Rover OBD-II Trouble Codes -------------------------------------------------The diagnostic trouble codes (DTCs) P2107 and P2108 both relate to issues with the Throttle Actuator Control (TAC) module. These codes indicate a problem with the performance of the TAC module processor. Here's a breakdown of each code:

1. **P2107 - Throttle Actuator Control Module Processor:**
   - This code suggests that there is a performance failure in the Throttle Actuator Control (TAC) module processor.

2. **P2108 - Throttle Actuator Control Module Performance:**
   - P2108 points to a more general performance issue with the TAC module.

### Possible Causes:

1. **Faulty Throttle Actuator Control Module:** Issues with the TAC module, which controls the operation of the throttle actuator.

2. **Wiring Issues:** Problems with the wiring or connectors associated with the TAC module.

3. **Electronic Control Module (ECM) Issues:** Problems with the Engine Control Module (ECM) that communicates with the TAC module.

4. **Software or Programming Issues:** Errors in the software or programming of the TAC module.

### Diagnostic Steps:

1. **Inspect Throttle Actuator Control Module:** Check the TAC module for signs of damage or wear. If it appears faulty, consider replacement.

2. **Check Wiring and Connectors:** Inspect the wiring and connectors associated with the TAC module. Look for any signs of damage, corrosion, or loose connections.

3. **Verify ECM Operation:** Test the ECM for proper operation and communication with the TAC module.

4. **Check for Software Updates:** In some cases, updating the software or programming of the TAC module may resolve performance issues.

5. **Perform Continuity Tests:** Check for continuity in the wiring from the TAC module to the ECM.

6. **Clear Codes:** After addressing any identified issues, clear the trouble codes and monitor the system for recurrence.

7. **Consider Professional Assistance:** If you are unsure about diagnosing or addressing these issues yourself, or if the faults persist, it's advisable to consult with a qualified mechanic or technician.

Addressing the root cause of the TAC module performance issues is essential for proper engine performance and throttle response. If in doubt or if the faults persist, seeking professional assistance is recommended for a thorough diagnosis and effective repair.
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