C1198 — ABS Inlet Valve Coil LF Circuit Failure

What Does C1198 Mean?

C1198 is a diagnostic trouble code indicating: ABS Inlet Valve Coil LF Circuit Failure. This code relates to the manufacturer-specific chassis system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

Symptoms of C1198

⚠️ Check Engine Light (MIL) illuminated
⚠️ Erratic ABS Inlet Valve Coil LF readings
⚠️ Related system operating intermittently
⚠️ ABS or traction control warning light

Common Causes

🔍 Wiring issue in ABS Inlet Valve Coil LF circuit (damaged, chafed, or corroded)
🔍 Faulty ABS Inlet Valve Coil LF connector or terminal
🔍 Failed ABS Inlet Valve Coil LF
🔍 ECM/PCM connection issue

Frequently Asked Questions

What does C1198 mean?

C1198 indicates: ABS Inlet Valve Coil LF Circuit Failure. The vehicle's computer has detected that the ABS Inlet Valve Coil LF is not operating within its expected parameters and stored this diagnostic trouble code.

Can I drive with code C1198?

You can drive short distances for essential trips, but schedule a diagnosis soon. Driving with C1198 for extended periods may cause additional problems.

How much does it cost to fix C1198?

Repair costs for C1198 typically range from $80 to $300, 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 and repair ABS Inlet Valve Coil LF wiring and connectors
🔧 Replace faulty ABS Inlet Valve Coil LF

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.

C1198: ABS Inlet Valve Coil LF Circuit Failure