ABS Left Front Inlet Valve Coil Circuit Short to Ground (Ford, Lincoln, Mercury, Mazda) Front Traction Control Inlet Valve Control Circuit Low (Dodge, Chrysler, Plymouth, Jeep, FIAT) Right Front Wheel Speed Sensor Invalid Signal (Mitsubishi) Left Front Wheel Speed Sensor Circuit Range or Performance (Chevrolet) Vehicle Stability Control (VSC) Cancelled by Fault in Engine Control Module (Toyota, Scion, Lexus)

What does C1201 mean?

C1201 stands for ABS Left Front Inlet Valve Coil Circuit Short to Ground (Ford, Lincoln, Mercury, Mazda) Front Traction Control Inlet Valve Control Circuit Low (Dodge, Chrysler, Plymouth, Jeep, FIAT) Right Front Wheel Speed Sensor Invalid Signal (Mitsubishi) Left Front Wheel Speed Sensor Circuit Range or Performance (Chevrolet) Vehicle Stability Control (VSC) Cancelled by Fault in Engine Control Module (Toyota, Scion, Lexus). A chassis module has found a fault in a system like ABS, traction or stability control, steering or suspension.

Chassis codes cover the ABS, traction control, steering and suspension. When the car's computer sees a reading outside its normal range, it stores this code and may turn on a warning light on the dashboard.

Common causes

• Faulty or dirty wheel speed sensor
• Damaged sensor wiring
• Low brake fluid
• Faulty ABS pump or module

What to do

1. Read all stored and pending codes with a scanner. Several codes together often point to one cause.
2. Note the freeze frame data (speed, temperature, load) recorded when the code was set.
3. Inspect the wiring and connectors of the part named in the code for damage, corrosion or looseness.
4. Fix the most likely and cheapest cause first, then clear the code and drive to see if it comes back.

Read this code from your own car

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Frequently asked questions

What does C1201 mean?

C1201 means “ABS Left Front Inlet Valve Coil Circuit Short to Ground (Ford, Lincoln, Mercury, Mazda) Front Traction Control Inlet Valve Control Circuit Low (Dodge, Chrysler, Plymouth, Jeep, FIAT) Right Front Wheel Speed Sensor Invalid Signal (Mitsubishi) Left Front Wheel Speed Sensor Circuit Range or Performance (Chevrolet) Vehicle Stability Control (VSC) Cancelled by Fault in Engine Control Module (Toyota, Scion, Lexus)”. It belongs to the chassis system group: A chassis module has found a fault in a system like ABS, traction or stability control, steering or suspension.

Is it safe to drive with C1201?

Avoid driving long distances. This kind of fault can cause damage or affect safety, so get it checked as soon as possible.

How do I clear C1201?

Fix the cause, then clear the code with an OBD2 scanner or app. If the fault is still there, the code will come back.

Related codes

• C1197ABS Outlet Valve Coil LF Circuit Short To Ground
• C1198ABS Inlet Valve Coil LF Circuit Failure
• C1199ABS Inlet Valve Coil LF Circuit Open
• C1200ABS Inlet Valve Coil LF Circuit Short To Battery
• C1202ABS Outlet Valve Coil Rear Circuit Failure
• C1203ABS Outlet Valve Coil Rear Circuit Open
• C1204ABS Outlet Valve Coil Rear Circuit Short To Battery
• C1205ABS Outlet Valve Coil Rear Circuit Short To Ground

Code meanings can vary by manufacturer. This page is general guidance, not a repair manual. Always confirm the cause before replacing parts.