B1611 – OBD-II DTC

OBD-II DTC B1611 – Wiper Rear Mode Select Switch Circuit Failure

DTC B1611 meaning

DTC B1611 refers to a fault in the rear wiper mode select switch circuit. This diagnostic trouble code indicates that the vehicle’s onboard diagnostic system has detected an issue with the electrical circuit responsible for controlling the rear wiper’s operational modes. The rear wiper mode select switch allows the driver to choose different settings for the rear wiper, such as intermittent or continuous operation. A failure in this circuit can prevent the rear wiper from functioning correctly.

DTC B1611 symptoms

Common symptoms associated with DTC B1611 may include:

• Rear wiper not functioning at all
• Rear wiper operating intermittently when it should not
• Inability to change the rear wiper mode
• Dashboard warning lights related to the wiper system

DTC B1611 causes

Several factors can lead to the occurrence of DTC B1611, including:

• Faulty rear wiper mode select switch
• Damaged wiring or connectors in the rear wiper circuit
• Short circuits or open circuits in the electrical system
• Issues with the body control module (BCM) that manages the wiper functions

DTC B1611 seriousness

The seriousness of DTC B1611 can vary depending on the vehicle’s usage and the driver’s reliance on the rear wiper. While it may not affect the vehicle’s overall drivability, it can pose safety concerns in adverse weather conditions where rear visibility is crucial. Therefore, it is advisable to address this issue promptly to ensure proper functionality of the rear wiper system.

How to diagnose DTC B1611

To diagnose DTC B1611, follow these steps:

1. Use an OBD-II scanner to confirm the presence of DTC B1611.
2. Inspect the rear wiper mode select switch for physical damage or wear.
3. Check the wiring and connectors for signs of corrosion, fraying, or disconnection.
4. Test the continuity of the circuit using a multimeter.
5. Examine the body control module for any fault codes or issues.

How to fix DTC B1611 step-by-step instructions

To fix DTC B1611, follow these step-by-step instructions:

1. Disconnect the vehicle’s battery to ensure safety while working on the electrical system.
2. Inspect and replace the rear wiper mode select switch if it is found to be faulty.
3. Repair or replace any damaged wiring or connectors in the rear wiper circuit.
4. Test the circuit for continuity and ensure proper voltage is present.
5. Reconnect the battery and clear the DTC using an OBD-II scanner.
6. Test the rear wiper operation to confirm that the issue has been resolved.

How to erase DTC B1611

To erase DTC B1611, 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 option to clear or erase trouble codes on the scanner.
4. Confirm the action to erase DTC B1611 from the system.
5. Disconnect the scanner and start the vehicle to ensure the code does not reappear.

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