B2228 Code - Power Back Door Unit Motor Left Circuit
Quick Answer
The Power Back Door system enables the back door to be opened and closed automatically by a motor in accordance with signals from the back door control switch or the power back door button on an electrical key transmitter sub-assembly or door control transmitter. Common causes include Faulty Power Back Door (PBD) Unit Assembly Left (LH), Power Back Door Unit Assembly Left harness is open or shorted, Power Back Door Unit Assembly Left circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- B2228 indicates Power Back Door Unit Motor Left Circuit.
- Common causes
- Common causes include Faulty Power Back Door (PBD) Unit Assembly Left (LH), Power Back Door Unit Assembly Left harness is open or shorted, Power Back Door Unit Assembly Left circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code B2228 Description
This Diagnostic Trouble Code (DTC) is output when the Multiplex Network Door ECU detects a Power Back Door (PBD) Unit Assembly set Left (LH) Motor malfunction.
What are the Possible Causes of the DTC B2228?
- Faulty Power Back Door (PBD) Unit Assembly Left (LH)
- Power Back Door Unit Assembly Left harness is open or shorted
- Power Back Door Unit Assembly Left circuit poor electrical connection
- Faulty Multiplex Network Door ECU
How to Fix the DTC B2228?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B2228 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the B2228 code?
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Need Help with the Code?
Get the B2228 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- B2228 Buick — Mirror Left Switch Fault
- B2228 Cadillac — Mirror Left Switch Fault
- B2228 Chevrolet — Mirror Left Switch Fault
- B2228 Chrysler — Sentry Key Remote Entry Module Internal
- B2228 Dodge — Sentry Key Remote Entry Module Internal
- B2228 Ford — Air Bag Driver Circuit Short to Ground
- B2228 GMC — Mirror Left Switch Fault
- B2228 Jeep — Sentry Key Remote Entry Module Internal
- B2228 Lexus — Power Back Door Unit Motor Left Circuit
- B2228 Lincoln — Air Bag Driver Circuit Short to Ground
- B2228 Mazda — Air Bag Driver Circuit Short to Ground
- B2228 Mercury — Air Bag Driver Circuit Short to Ground
- B2228 RAM — Sentry Key Remote Entry Module Internal
- B2228 Toyota — Power Back Door Unit Motor Left Circuit
Frequently Asked Questions about B2228 Code
1. What are the common symptoms of OBDII code B2228 (Power Back Door Unit Motor Left Circuit)?
- The common symptoms include the power back door not functioning properly, failure to open or close, or unusual noises coming from the motor.
2. What are the possible causes of OBDII code B2228?
- Possible causes include a faulty power back door unit motor, damaged wiring or connectors in the circuit, or a malfunctioning control module.
3. How can I diagnose the issue related to OBDII code B2228?
- To diagnose the issue, you can use an OBDII scanner to retrieve the specific trouble code, visually inspect the wiring and connectors for any visible damage, and test the power back door unit motor for proper functionality.
4. Can a DIYer repair OBDII code B2228 at home?
- Depending on your automotive repair skills, you may be able to repair the issue at home by replacing the faulty power back door unit motor or repairing any damaged wiring or connectors in the circuit.
5. Are there any repair tips for fixing OBDII code B2228?
- Some repair tips include ensuring all connections are secure, using electrical tape or heat shrink tubing to repair damaged wiring, and following the manufacturer's repair procedures outlined in the service manual.
6. Is it safe to drive with OBDII code B2228 active?
- It is generally safe to drive with this code active, but it is recommended to address the issue promptly to ensure the proper functioning of the power back door system.
7. How much does it typically cost to repair OBDII code B2228?
- The cost of repair can vary depending on the specific cause of the issue, but it may range from $100 to $300 for parts and labor.
8. Can OBDII code B2228 be intermittent?
- Yes, this code can be intermittent, especially if the issue is related to loose connections or intermittent faults in the circuit.
9. Will resetting the trouble codes make OBDII code B2228 disappear permanently?
- Resetting the trouble codes may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to reappear upon further use of the power back door system.
10. How long does it typically take to repair OBDII code B2228?
- The repair time can vary based on the complexity of the issue, but a skilled technician can usually diagnose and repair the problem within a couple of hours.
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