Reference meaning
What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Narrow by vehicle
A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Scan worksheet →Manufacturer communications
4Original wording in English
KIA
"TECH TIP: DTC C1203 OR C1212 - SPEED SENSOR FAILURE SYMPTOM: C1203 – RH FRONT WHEEL SPEED SENSOR OPEN/SHORT AND/OR C1212 – VEHICLE SPEED SENSOR FAILURE. REPAIR: CHECK FOR A SHORT IN THE MAIN ESC HARNESS NEAR THE RADIATOR BRACKET. VERIFY POSSIBLE RUBBING BETWEEN THE BRACKET THAT RUNS UNDER THE HEADLIGHT TO THE RADIATOR AND THE H…
TOYOTA
VSC LIGHT ON CONDITION WITH DIAGNOSTIC TROUBLE CODE C1203 IN THE SKID CONTROL COMPUTER MEMORY. A MODIFICATION TO THE SKID CONTROL COMPUTER LOGIC HAS BEEN MADE TO PREVENT THIS CONDITION. *TT
TOYOTA
VSC COMMUNICATION BETWEEN SKID CONTROL COMPUTER AND ENGINE CONTROL MODULE (ECM) - DIAGNOSTIC TROUBLE CODE (DTC) C1203. REVISED. *TT
TOYOTA
VSC COMMUNICATION BETWEEN SKID CONTROL COMPUTER AND ENGINE CONTROL MODULE (ECM) - DIAGNOSTIC TROUBLE CODE (DTC) C1203. *TT
Check vehicle applicability
3A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Kia | OPTIMA HYBRID ↗ | 2015 |
| Toyota | 4 RUNNER ↗ | 2003 |
| Toyota | SEQUOIA ↗ | 2003 |
Code meaning and manufacturer information
Original wording in English · Historical directory labels; manufacturer applicability has not been established for every entry.
ABS Outlet Valve Coil Rear Circuit Open
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.