C0245 critical

Electronic Power Steering Motor Circuit Malfunction

The C0245 code means the vehicle's onboard diagnostic system has detected: Electronic Power Steering Motor Circuit Malfunction. This is a critical severity code.

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Keep driving?: Short distances only
DIY difficulty: hard
Estimated cost: $300 - $1500 (parts and labor)

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Common Symptoms

Power steering warning light on
Steering becomes heavy or difficult
Electric power steering assist intermittent
Steering effort changes with temperature
Buzzing or whining noise from steering column or rack

Probable Causes (Ranked by Likelihood)

Failed electric power steering motor Very High
EPS motor wiring harness damage High
EPS control module failure Moderate
Corroded motor connector Moderate
Overheated motor from sustained heavy steering effort Low

Step-by-Step Diagnostic Procedure

Scan for DTCs and check EPS motor current draw in live data
Inspect EPS motor connector for corrosion or damage
Check motor wiring for chafing, especially near the steering column
Test EPS motor resistance against specifications
Verify battery voltage and alternator output -- EPS needs adequate power

Frequently Asked Questions

Can I still steer with a failed EPS motor?

Yes, but the steering will be very heavy, especially at low speeds and during parking. At highway speeds, steering effort is somewhat lighter. Use caution and get it repaired soon.

Is the EPS motor part of the steering rack?

It depends on the vehicle. Some have the motor on the steering column, while others have it mounted directly on the steering rack. Column-mounted motors are typically easier and cheaper to replace.

Can low battery voltage cause EPS failure?

Yes. The EPS motor draws significant electrical current. A weak battery or failing alternator may not provide enough power, causing the system to reduce or disable power steering assist.