Audi DTC P1691 – Malfunction Indication Light Open
DTC P1691 meaning on Audi
DTC P1691 on an Audi indicates a malfunction in the Malfunction Indication Light circuit. This code is triggered when the Malfunction Indication Light is found to be open or disconnected.
Audi DTC P1691 symptoms
Symptoms of DTC P1691 on an Audi may include the Malfunction Indication Light not illuminating when there is a fault detected by the vehicle’s onboard diagnostic system. This can make it difficult for the driver to be alerted to potential issues with the vehicle.
Audi DTC P1691 causes
The causes of DTC P1691 on an Audi can vary, but common reasons include a faulty Malfunction Indication Light bulb, a disconnected or damaged wiring harness, or a malfunction in the Malfunction Indication Light circuit itself.
Audi DTC P1691 seriousness
While DTC P1691 may not directly affect the performance of the vehicle, it is important to address this issue as it can impact the ability to receive timely warnings about potential problems with the vehicle.
How to diagnose DTC P1691 on Audi
To diagnose DTC P1691 on an Audi, a mechanic would typically start by visually inspecting the Malfunction Indication Light bulb and the wiring harness connected to it. They may also use a multimeter to test for continuity in the circuit and check for any loose connections.
How to fix DTC P1691 on Audi
Fixing DTC P1691 on an Audi may involve replacing the Malfunction Indication Light bulb if it is found to be faulty. If the issue lies with the wiring or circuit, repairs or replacements may be necessary to restore proper functionality to the Malfunction Indication Light.
How to erase DTC P1691 on Audi
Once the underlying issue causing DTC P1691 on an Audi has been resolved, the diagnostic trouble code can be cleared using a compatible OBD-II scanner. This will reset the vehicle’s onboard computer and turn off the Malfunction Indication Light.
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