B1698 – OBD-II DTC

OBD-II DTC B1698 – Mirror Driver/Passenger Switch Circuit Short To Ground

DTC B1698 meaning

DTC B1698 refers to a diagnostic trouble code indicating a short circuit to ground in the mirror driver or passenger switch circuit. This code is part of the On-Board Diagnostics II (OBD-II) system, which monitors various vehicle components for faults. When the system detects an abnormal voltage level or a direct connection to ground in the mirror switch circuit, it triggers this code.

DTC B1698 symptoms

Common symptoms associated with DTC B1698 may include:

• Inoperable side mirror adjustments
• Malfunctioning mirror heating features
• Warning lights on the dashboard
• Intermittent electrical issues in the vehicle

DTC B1698 causes

Several factors can lead to the occurrence of DTC B1698, including:

• Damaged wiring or connectors in the mirror switch circuit
• Faulty mirror driver or passenger switch
• Corrosion or moisture in electrical connections
• Short circuits caused by aftermarket installations or modifications

DTC B1698 seriousness

The seriousness of DTC B1698 can vary. While it may not pose an immediate safety risk, it can lead to the inability to adjust mirrors, which is crucial for safe driving. Additionally, unresolved electrical issues may lead to further complications in the vehicle’s electrical system.

How to diagnose DTC B1698

To diagnose DTC B1698, follow these steps:

1. Use an OBD-II scanner to confirm the presence of the code.
2. Inspect the mirror switch and associated wiring for visible damage.
3. Check for continuity in the wiring harness to identify any shorts to ground.
4. Test the mirror switch functionality using a multimeter.
5. Examine related components for faults, such as the body control module.

How to fix DTC B1698 step-by-step instructions

To fix DTC B1698, follow these step-by-step instructions:

1. Disconnect the vehicle’s battery to ensure safety while working on electrical components.
2. Inspect the wiring and connectors for any signs of damage or corrosion.
3. Repair or replace any damaged wiring or connectors found during the inspection.
4. Test the mirror switch for proper operation and replace it if necessary.
5. Reconnect the battery and clear the DTC using an OBD-II scanner.
6. Test the mirror functions to ensure they operate correctly.

How to erase DTC B1698

To erase DTC B1698, 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 reappear.

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