B1692 – OBD-II DTC

OBD-II DTC B1692 – Autolamp Delay Circuit Short To Ground

DTC B1692 meaning

DTC B1692 refers to a diagnostic trouble code indicating a fault in the autolamp delay circuit, specifically a short to ground condition. This code is part of the On-Board Diagnostics II (OBD-II) system, which monitors various vehicle systems for malfunctions. The autolamp delay circuit is responsible for controlling the automatic lighting system, allowing headlights to remain on for a specified duration after the vehicle is turned off.

DTC B1692 symptoms

Common symptoms associated with DTC B1692 may include:

• Headlights not turning on or off as expected
• Headlights staying on longer than intended
• Dashboard warning lights illuminated
• Inconsistent operation of the autolamp feature

DTC B1692 causes

Several factors can lead to the occurrence of DTC B1692, including:

• Wiring issues, such as frayed or damaged wires
• Faulty connectors or terminals in the autolamp circuit
• Defective autolamp control module
• Short circuits caused by moisture or corrosion

DTC B1692 seriousness

DTC B1692 is considered a moderate issue. While it may not immediately affect vehicle safety, it can lead to problems with visibility if the headlights do not function correctly. Additionally, prolonged use of headlights can drain the vehicle’s battery, leading to further complications.

How to diagnose DTC B1692

To diagnose DTC B1692, follow these steps:

1. Use an OBD-II scanner to confirm the presence of the DTC.
2. Inspect the wiring and connectors associated with the autolamp delay circuit for any visible damage.
3. Check for continuity in the circuit to identify any shorts to ground.
4. Test the autolamp control module for proper operation.
5. Clear the DTC and perform a road test to see if the code returns.

How to fix DTC B1692 step-by-step instructions

To fix DTC B1692, follow these steps:

1. Disconnect the vehicle’s battery to ensure safety while working on the electrical system.
2. Inspect and repair any damaged wiring or connectors in the autolamp delay circuit.
3. Replace the autolamp control module if it is found to be defective.
4. Reconnect the battery and clear the DTC using an OBD-II scanner.
5. Test the autolamp feature to ensure it operates correctly.

How to erase DTC B1692

To erase DTC B1692, follow these steps:

1. Connect an OBD-II scanner to the vehicle’s diagnostic port.
2. Turn on the vehicle’s ignition without starting the engine.
3. Navigate to the DTC menu on the scanner and select the option to clear or erase codes.
4. Confirm the action and wait for the scanner to complete the process.
5. Disconnect the scanner and perform a test drive to ensure the code does not return.

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