B1616 – OBD-II DTC

OBD-II DTC B1616 – Wiper Rear Disable Switch Circuit Open

DTC B1616 meaning

DTC B1616 refers to a diagnostic trouble code indicating an issue with the rear wiper disable switch circuit. Specifically, it signifies that the circuit is open, meaning there is a break in the electrical connection that prevents the rear wiper from functioning properly. This code is part of the On-Board Diagnostics II (OBD-II) system, which monitors various vehicle components for faults.

DTC B1616 symptoms

Common symptoms associated with DTC B1616 may include:

• Rear wiper not functioning
• Inability to activate rear wiper through controls
• Dashboard warning lights related to wiper system
• Intermittent operation of the rear wiper

DTC B1616 causes

Several factors can lead to the triggering of DTC B1616, including:

• Faulty rear wiper disable switch
• Damaged wiring or connectors in the rear wiper circuit
• Corrosion or poor connections at the switch or related components
• Issues with the body control module (BCM) that manages the wiper system

DTC B1616 seriousness

The seriousness of DTC B1616 can vary. While it may not affect the vehicle’s overall drivability, it can hinder visibility during inclement weather if the rear wiper is inoperative. It is advisable to address this issue promptly to ensure safe driving conditions.

How to diagnose DTC B1616

To diagnose DTC B1616, follow these steps:

1. Use an OBD-II scanner to confirm the presence of the B1616 code.
2. Inspect the rear wiper disable switch for physical damage or wear.
3. Check the wiring and connectors for signs of corrosion or breaks.
4. Test the continuity of the circuit using a multimeter.
5. Examine the body control module for any faults or error codes.

How to fix DTC B1616 step-by-step instructions

To fix DTC B1616, follow these step-by-step instructions:

1. Disconnect the vehicle’s battery to ensure safety.
2. Inspect and replace the rear wiper disable switch if faulty.
3. Repair or replace any damaged wiring or connectors in the circuit.
4. Clean any corroded connections to ensure proper electrical contact.
5. Reconnect the battery and clear the DTC using an OBD-II scanner.
6. Test the rear wiper operation to confirm the issue is resolved.

How to erase DTC B1616

To erase DTC B1616, follow these steps:

1. Connect an OBD-II scanner to the vehicle’s diagnostic port.
2. Turn on the 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 the DTC.
5. Disconnect the scanner and start the vehicle to ensure the code does not return.

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