IG2 Power Source Circuit
Table of contents
C1242 TOYOTA Possible Causes
- Faulty Battery
- Charging System
- Faulty Master Cylinder Solenoid (Skid Control ECU)
How do I fix code C1242 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 C1242 TOYOTA code
The cost of diagnosing the C1242 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)
C1242 TOYOTA Description
If there is a problem with the Master Cylinder Solenoid (Skid Control ECU) power supply circuit, the skid control ECU outputs the DTC and prohibits operation under the fail-safe function.
If the voltage supplied to terminal IG2 is not within the DTC detection threshold due to malfunctions in parts such as the battery and generator circuit, this DTC is stored.