Land Rover DTC P1185 – Oxygen Sensor Heater Circuit Open Upstream
DTC P1185 meaning on Land Rover
DTC P1185 on a Land Rover indicates an issue with the Oxygen Sensor Heater Circuit Open Upstream. This means that the heating element in the upstream oxygen sensor is not functioning properly, which can affect the sensor’s performance.
Land Rover DTC P1185 symptoms
Symptoms of DTC P1185 on a Land Rover may include:
- Check Engine Light illuminated
- Poor fuel economy
- Engine running rough
- Reduced engine performance
Land Rover DTC P1185 causes
Common causes of DTC P1185 on a Land Rover include:
- Faulty oxygen sensor
- Open or short circuit in the oxygen sensor heater circuit
- Corrosion or damage to sensor wiring
- Defective engine control module (ECM)
Land Rover DTC P1185 seriousness
DTC P1185 should not be ignored as it can lead to poor engine performance and increased emissions. It is important to address this issue promptly to prevent further damage to the vehicle and ensure optimal fuel efficiency.
How to diagnose DTC P1185 on Land Rover
To diagnose DTC P1185 on a Land Rover, a mechanic may perform the following steps:
- Use a scan tool to retrieve the fault code and freeze frame data
- Inspect the oxygen sensor and its wiring for any visible damage
- Check the resistance of the oxygen sensor heater circuit
- Test the oxygen sensor heater circuit for power and ground signals
How to fix DTC P1185 on Land Rover
To fix DTC P1185 on a Land Rover, the following steps may be taken:
- Replace the faulty oxygen sensor
- Repair any open or short circuits in the oxygen sensor heater circuit
- Repair or replace damaged sensor wiring
- If necessary, replace the engine control module (ECM)
How to erase DTC P1185 on Land Rover
To erase DTC P1185 on a Land Rover, the fault code can be cleared using a scan tool. After the repair has been completed, the scan tool can be used to reset the Check Engine Light and erase the diagnostic trouble code from the vehicle’s memory.
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