Open / Short In Steering Lock ECU
Table of contents
B2781 TOYOTA Possible Causes
- Faulty Steering Lock ECU
- Steering Lock ECU harness is open or shorted
- Steering Lock ECU circuit poor electrical connection
How do I fix code B2781 TOYOTA?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Cost of diagnosing the B2781 TOYOTA code
The cost of diagnosing the B2781 TOYOTA code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
B2781 TOYOTA Description
The Steering Lock ECU and steering lock actuator assembly are supplied as a unit. The Steering Lock ECU detects the steering lock position through the signals from the lock and unlock position sensors. The Steering Lock ECU activates the steering lock motor based on permission signals from the main body ECU and the certification ECU (smart key ECU assembly). The diagnosis information of the steering lock ECU is transmitted to the Techstream via the certification ECU (smart key ECU assembly) as the steering lock ECU is not connected to the CAN communication system. The Diagnostic Trouble Code (DTC) sets when either condition below is met: A steering lock motor drive power circuit malfunction and the ON condition for both the lock and unlock position sensors is detected.