B051B:01 Code - Right Side Assist Step Motor Control Circuit Short to Battery
Quick Answer
The Assist Step Control (ASC) Module controls the running board actuators to extend or retract the running boards. Common causes include Faulty Right Side Assist Step Motor, Right Side Assist Step Motor harness is open or shorted, Right Side Assist Step Motor circuit poor electrical connection. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
- What it means
- B051B:01 indicates Right Side Assist Step Motor Control Circuit Short to Battery.
- Common causes
- Common causes include Faulty Right Side Assist Step Motor, Right Side Assist Step Motor harness is open or shorted, Right Side Assist Step Motor circuit poor electrical connection.
- Severity
- Low - monitor the vehicle and repair when practical.
- Can I drive?
- The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
Code B051B:01 Description
What are the Possible Causes of the DTC B051B:01?
- Faulty Right Side Assist Step Motor
- Right Side Assist Step Motor harness is open or shorted
- Right Side Assist Step Motor circuit poor electrical connection
- Faulty Assist Step Control (ASC) Module
How to Fix the DTC B051B:01?
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.
Code Tech Notes
B051B:01 Right Side Assist Step Motor Control Circuit Short to Battery
B051B:02 Right Side Assist Step Motor Control Circuit Short to Ground
B051B:04 Right Side Assist Step Motor Control Circuit Open Circuit
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B051B:01 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.
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Frequently Asked Questions about B051B:01 Code
1. What does the OBDII code B051B:01 mean?
This code indicates a "Right Side Assist Step Motor Control Circuit Short to Battery," meaning there’s an electrical issue causing the motor’s circuit to have a continuous power source when it shouldn’t.
2. What are the common symptoms of the B051B:01 code?
Symptoms may include the right side assist step not deploying or retracting properly, unusual noises from the motor, or a warning light on the dashboard.
3. What causes the B051B:01 code?
Common causes include damaged wiring, a short circuit in the motor control circuit, a faulty assist step motor, or a defective control module.
4. Can I still drive my vehicle with the B051B:01 code?
Yes, you can drive, but the right side assist step may not function properly, potentially causing inconvenience or safety concerns when entering or exiting the vehicle.
5. How do I diagnose the B051B:01 code?
Start by visually inspecting the wiring and connectors for damage, check for signs of a short circuit or corrosion, and test the assist step motor for proper operation.
6. How can I fix the B051B:01 code?
Repairs may involve replacing damaged wiring, repairing or replacing the assist step motor, or addressing issues with the control module if it’s faulty.
7. How much does it cost to fix the B051B:01 code?
Repair costs will vary depending on the issue, but wiring repairs may cost $50-$200, while replacing the motor or module could cost $300-$600 or more.
8. Can I reset the B051B:01 code without fixing the issue?
You can clear the code with an OBDII scanner, but if the underlying issue isn’t resolved, the code and symptoms will likely return.
9. What tools are needed to troubleshoot the B051B:01 code?
Tools include an OBDII scanner, a multimeter for checking voltage and continuity, and basic hand tools for inspecting and repairing wiring.
10. Is the B051B:01 code manufacturer-specific?
No, it is a generic OBDII code, but its specific meaning and troubleshooting steps may vary slightly depending on the vehicle manufacturer.
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