HV System Regenerative Malfunction
Table of contents
C1259 TOYOTA Possible Causes
- Hybrid Control System
- Faulty Hybrid Control ECU
How do I fix code C1259 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 C1259 TOYOTA code
The cost of diagnosing the C1259 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
- Anti-Lock Brake System (ABS) Warning Light ON
- Engine Light ON (or Service Engine Soon Warning Light)
C1259 TOYOTA Description
The Skid Control ECU communicates with the Hybrid Control ECU and controls braking force according to the motor’s regenerative force. The Skid Control ECU sends Enhanced VSC signal to the Hybrid Control ECU and inputs operating signal from the Hybrid Control ECU. The Skid Control ECU uses CAN communication for communication with the Hybrid Control ECU. If a communication malfunction is memorized, the Skid Control ECU prohibits Enhanced VSC operation and a part of ECB control by fail safe function.