P1699 – Jaguar DTC

Jaguar DTC P1699 – CAN data bus, ECM to A/C control module – network malfunction

DTC P1699 meaning on Jaguar

DTC P1699 on a Jaguar refers to a CAN data bus communication error between the Engine Control Module (ECM) and the Air Conditioning (A/C) control module. This error indicates a network malfunction where the ECM is unable to communicate properly with the A/C control module over the Controller Area Network (CAN) bus.

Jaguar DTC P1699 symptoms

Symptoms of DTC P1699 on a Jaguar may include:

• Malfunction indicator lamp (MIL) or check engine light illuminated on the dashboard
• Issues with the air conditioning system operation
• Potential loss of communication with the A/C control module

Jaguar DTC P1699 causes

Common causes of DTC P1699 on a Jaguar include:

• Faulty ECM or A/C control module
• Wiring or connection issues in the CAN bus network
• Interference or signal disruption on the CAN bus network

Jaguar DTC P1699 seriousness

The seriousness of DTC P1699 on a Jaguar depends on the underlying cause. While it may not directly affect the drivability of the vehicle, it can lead to issues with the A/C system operation and potentially impact overall vehicle performance.

How to diagnose DTC P1699 on Jaguar

To diagnose DTC P1699 on a Jaguar, a mechanic would typically perform the following steps:

1. Use a diagnostic scan tool to retrieve the fault codes and identify the specific error codes present
2. Inspect the wiring and connections in the CAN bus network for any damage or corrosion
3. Check the ECM and A/C control module for proper functionality and communication

How to fix DTC P1699 on Jaguar

To fix DTC P1699 on a Jaguar, the following steps may be taken:

1. Repair or replace any damaged wiring or connections in the CAN bus network
2. Verify proper communication between the ECM and A/C control module
3. If necessary, replace the faulty ECM or A/C control module

How to erase DTC P1699 on Jaguar

To erase DTC P1699 on a Jaguar, a mechanic can use a diagnostic scan tool to clear the fault codes stored in the vehicle’s ECM. Once the issue has been resolved and the repair completed, the fault codes can be cleared to reset the system and turn off the MIL or check engine light.

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