B1697 – OBD-II DTC

OBD-II DTC B1697 – Mirror Driver/Passenger Switch Circuit Short To Battery

DTC B1697 meaning

DTC B1697 refers to a diagnostic trouble code indicating a short circuit in the driver or passenger mirror switch circuit to battery voltage. This code is triggered when the vehicle’s onboard diagnostic system detects an abnormal voltage level in the mirror switch circuit, suggesting that the circuit is shorted to the battery, which can lead to malfunctioning of the mirror adjustment features.

DTC B1697 symptoms

Common symptoms associated with DTC B1697 may include:

• Inability to adjust the side mirrors
• Mirrors stuck in one position
• Mirror heating function not working (if equipped)
• Warning lights on the dashboard related to the mirror system
• Possible blown fuses related to the mirror circuit

DTC B1697 causes

Several factors can lead to the triggering of DTC B1697, including:

• Faulty mirror switch
• Wiring issues, such as frayed or damaged wires
• Corrosion or poor connections in the circuit
• Short circuit due to moisture intrusion
• Faulty body control module (BCM) or other related electronic components

DTC B1697 seriousness

The seriousness of DTC B1697 can vary. While it may not pose an immediate safety risk, it can lead to reduced visibility if the mirrors cannot be adjusted properly. Additionally, ignoring this code may result in further electrical issues or damage to the vehicle’s electrical system over time.

How to diagnose DTC B1697

To diagnose DTC B1697, follow these steps:

1. Use an OBD-II scanner to confirm the presence of the B1697 code.
2. Inspect the mirror switch for physical damage or wear.
3. Check the wiring and connectors for signs of corrosion, fraying, or disconnection.
4. Test the mirror switch with a multimeter to ensure it operates within specifications.
5. Examine the body control module for faults or issues.
6. Clear the code and perform a function test to see if the code returns.

How to fix DTC B1697 step-by-step instructions

To fix DTC B1697, 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 mirror switch circuit.
3. Replace the mirror switch if it is found to be faulty.
4. Clean any corrosion from connectors and ensure all connections are secure.
5. Reconnect the battery and clear the DTC using an OBD-II scanner.
6. Test the mirror adjustment functions to ensure they operate correctly.

How to erase DTC B1697

To erase DTC B1697, 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 trouble codes section on the scanner.
4. Select the option to clear or erase the codes.
5. Confirm the action and wait for the scanner to complete the process.
6. Disconnect the scanner and start the vehicle to ensure the code does not return.

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