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 wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
C1230TRANSFER ACTUATOR CIRCUIT MALFUNCTION
Manufacturer communications
6Original wording in English
FORD
FALSE ABS ACTIVATION OR AN ABS LIGHT ON WITH DTC C1175 OR C1236 OR DTC C1230 OR C1237. *EH
FORD
CONCERNS THAT THE ANTI-LOCK BRAKE SYSTEM (ABS) LAMP IS ON WITH DIAGNOSTIC TROUBLE CODES C1230, C1229, OR C1237. *TT
FORD
SOME CUT-AWAY VEHICLES MAY EXHIBIT ANTI-SKID BRAKE SYSTEM DIAGNOSTIC TROUBLE CODE C1229, C1230 AND C1237. *TT
FORD, MERCURY
SOME VEHICLES MAY EXHIBIT AN ANTI-LOCK BRAKE SYSTEM LIGHT ON WITH DIAGNOSTIC TROUBLE CODE C1230 AND / OR C1237 FROM THE ANTI-LOCK BRAKE SYSTEM. *TT
Check vehicle applicability
33A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Ford | E SERIES ↗ | 2001 |
| Ford | E SERIES ↗ | 2000 |
| Ford | E-350 ↗ | 2002 |
| Ford | E-350 ↗ | 2001 |
| Ford | E-350 ↗ | 2000 |
| Ford | E-350 ↗ | 1999 |
| Ford | E-350 ↗ | 1998 |
| Ford | E-350 ↗ | 1997 |
Code meaning and manufacturer information
Original wording in English · Historical directory labels; manufacturer applicability has not been established for every entry.
Speed Wheel Sensor Rear Center Input Circuit Failure
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.