EPS Motor Current Too Low
The C0509 code means the vehicle's onboard diagnostic system has detected: EPS Motor Current Too Low. This is a critical severity code.
- Keep driving?
- Short distances only
- DIY difficulty
- hard
- Estimated cost
- $400 - $1200 (parts and labor)
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Common Symptoms
- Power steering warning light on
- Heavy steering effort
- Steering assist intermittent
- EPS warning message on display
Probable Causes (Ranked by Likelihood)
- Failed EPS motor Very High
- Damaged EPS wiring harness High
- Faulty EPS torque sensor Moderate
- EPS control module failure Low
Step-by-Step Diagnostic Procedure
-
Scan EPS module for specific fault codes
-
Check EPS motor resistance and current
-
Inspect EPS wiring and connectors
-
Test torque sensor input signals
Frequently Asked Questions
What does code C0509 mean?
C0509 indicates a fault with the eps motor current too low.
Can I drive with C0509?
You can drive short distances but steering will require more effort. Drive slowly and carefully to a repair shop.
How much does it cost to fix C0509?
Typical repair costs are $400 - $1200 (parts and labor).
Sources
This page is built from documented references. Verify against your own service info before repair work.
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