B2220 – OBD-II DTC

OBD-II DTC B2220 – Window Driver Rear Current Feedback Exceeded

DTC B2220 meaning

DTC B2220 refers to a diagnostic trouble code indicating that the current feedback from the rear window driver has exceeded the expected range. This code is specific to the window control system and typically relates to issues with the window motor or the associated wiring and connectors.

DTC B2220 symptoms

Common symptoms associated with DTC B2220 may include:

• Rear window not operating or functioning intermittently
• Window motor making unusual noises
• Window moving slowly or erratically
• Inoperative window switches
• Other electrical issues in the vehicle

DTC B2220 causes

Several factors can lead to the triggering of DTC B2220, including:

• Faulty rear window motor
• Damaged or frayed wiring in the window control circuit
• Corroded or loose connectors
• Faulty window switch
• Issues with the body control module (BCM)

DTC B2220 seriousness

DTC B2220 is considered a moderate issue. While it may not affect the overall drivability of the vehicle, it can lead to safety concerns if the rear window is stuck in an open or closed position. Additionally, it may indicate underlying electrical problems that could affect other systems in the vehicle.

How to diagnose DTC B2220

To diagnose DTC B2220, follow these steps:

1. Use an OBD-II scanner to confirm the presence of DTC B2220.
2. Inspect the rear window motor and wiring for visible damage or wear.
3. Check the connectors for corrosion or loose connections.
4. Test the window switch for proper operation.
5. Perform a continuity test on the wiring to ensure there are no breaks.
6. Check the body control module for any related fault codes.

How to fix DTC B2220 step-by-step instructions

To fix DTC B2220, follow these steps:

1. Repair or replace any damaged wiring or connectors found during diagnosis.
2. If the window motor is faulty, replace it with a new or refurbished unit.
3. Replace the window switch if it is not functioning correctly.
4. Clear the DTC using an OBD-II scanner after repairs are made.
5. Test the rear window operation to ensure it functions properly.

How to erase DTC B2220

To erase DTC B2220, follow these steps:

1. Connect an OBD-II scanner to the vehicle’s diagnostic port.
2. Turn the ignition key to the “On” position without starting the engine.
3. Navigate to the “Erase Codes” or “Clear DTCs” option on the scanner.
4. Confirm the action to clear the trouble codes.
5. Disconnect the scanner and start the vehicle to verify that the code does not return.

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