B2781
Open / Short in Steering Lock ECU
B2781 is an OBD-II diagnostic trouble code meaning: Open / Short in Steering Lock ECU. Common causes: broken wiring harness to the lock control unit, short circuit in control circuit. Estimated repair cost: $56–167.
Symptoms
- Inability to start the engine
- Steering wheel lock
- The anti-theft system malfunction indicator is on
- Error message on the dashboard
Causes
- Broken wiring harness to the lock control unit
- Short circuit in control circuit
- Malfunction of the steering column lock control unit
- Problems with power or ground of the control unit
- Corrosion of contacts or connectors
How to Fix
- Check the integrity of the wiring harness to the lock control unit
- Check the supply voltage and ground of the control unit
- Inspect connectors for corrosion or damage
- Check control circuit resistance
- If necessary, replace the steering column lock control unit
Related codes
FAQ
What does the B2781 code mean?
B2781 is an OBD-II diagnostic trouble code that indicates: Open / Short in Steering Lock ECU
What causes a B2781 error code?
The most common causes of B2781 include: Broken wiring harness to the lock control unit; Short circuit in control circuit; Malfunction of the steering column lock control unit; Problems with power or ground of the control unit.
How do I fix a B2781 diagnostic trouble code?
To fix B2781: Check the integrity of the wiring harness to the lock control unit. Check the supply voltage and ground of the control unit. Inspect connectors for corrosion or damage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B2781?
Yes, but get it checked soon
How much does it cost to fix B2781?
The estimated repair cost for B2781 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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