Open Circuit in Rear Differential Lock
Table of contents
C1248 TOYOTA Possible Causes
- Transfer Indicator Switch (Rear Differential Lock)
- Rear Differential Lock Circuit
- Brake Actuator (Skid Control ECU)
How do I fix code C1248 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 C1248 TOYOTA code
The cost of diagnosing the C1248 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)
C1248 TOYOTA Description
The 4WD control ECU stimulates the actuator to lock the rear differential in accordance with the rear differential lock switch. The skid control ECU monitors the transfer indicator switch (rear differential lock) and if the rear differential is locked, at which time the rear differential lock indicator light is illuminated, prohibits ABS, TRAC and VSC controls. At the same time, the skid control ECU illuminates the ABS warning light, VSC OFF indicator light and SLIP indicator light