Power Steering Motor Relay Welding Failure
Table of contents
C1555 TOYOTA Possible Causes
- Faulty Power Steering ECU
- Power Steering ECU harness is open or shorted
- Power Steering ECU circuit poor electrical connection
How do I fix code C1555 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.
Tech Notes
- In some vehicles, it is necessary to replace the Power Steering ECU when there is a problem in the power relay because each relay is built into the Power Steering ECU.
Cost of diagnosing the C1555 TOYOTA code
The cost of diagnosing the C1555 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)
C1555 TOYOTA Description
If the Power Steering ECU detects this Diagnostic Trouble Code (DTC), it shuts off the motor relay circuit (built into the Power Steering ECU) and stops power assist.