C0079 — Variable Effort Steering

What Does C0079 Mean?

C0079 is a diagnostic trouble code indicating: Variable Effort Steering. This code relates to the chassis system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

Symptoms of C0079

⚠️ Check Engine Light (MIL) illuminated
⚠️ Variable Effort Steering not functioning as expected
⚠️ Related system may be in fail-safe mode
⚠️ ABS or stability control warning light

Common Causes

🔍 Faulty Variable Effort Steering
🔍 Wiring or connector issue in Variable Effort Steering circuit
🔍 Related mechanical or electrical fault
🔍 ECM/PCM issue (rare)

Frequently Asked Questions

What does C0079 mean?

C0079 indicates: Variable Effort Steering. The vehicle's computer has detected that the Variable Effort Steering is not operating within its expected parameters and stored this diagnostic trouble code.

Can I drive with code C0079?

Only short distances if absolutely necessary. C0079 affects a critical system and should be diagnosed within a few days to avoid further damage.

How much does it cost to fix C0079?

Repair costs for C0079 typically range from $100 to $400, depending on the root cause. Simple wiring or connector repairs are on the lower end, while component replacement costs more. A proper diagnosis ($80–$150 at most shops) will identify the exact cause before committing to expensive parts.

What To Do Next

Possible Fixes

🔧 Inspect Variable Effort Steering and related wiring
🔧 Replace faulty Variable Effort Steering

1
Find your vehicle above
Click your make and model for real owner reports and common causes specific to your vehicle.
2
Check for recalls
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.
3
Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.

C0079: Variable Effort Steering