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.
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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.
C1278STEERING WHEEL ANGLE 1 AND 2 SIGNAL FAULTED
C1278STEERING WHEEL ANGLE 1 AND 2 SIGNAL FAULTED
Manufacturer communications
4Original wording in English
FORD
FORD: DUE TO TRACTION CONTROL FLASHING OR ILLUMINATING INDICATOR, DIAGNOSTIC CODES (DTC) C1963, C1278, C1280, C1282 ARE STORED IN ANTI LOCK BRAKE SYSTEM (ABS), DURING LOW SPEED MANEUVERS . MODELS 2009-2012 F-150. *PE
FORD, LINCOLN
FORD: STEERING WHEEL ANGLE CIRCUIT AND/OR SIGNAL FAILURE-C1277-C1278-BUILT ON OR BEFORE 4/10/08. VEHICLES MAY EXHIBIT A TRACTION CONTROL LIGHT (TCL) ON WITH DIAGNOSTIC TROUBLE CODES. *PE
FORD, LINCOLN
ADVANCETRAC LIGHTING ON WITH DIAGNOSTIC TROUBLE CODE C1277 (STEERING WHEEL ANGLE 1 AND 2 CIRCUIT FAILURE) OR C1278 (STEERING WHEEL ANGLE 1 AND 2 SIGNAL FAULTED) IN THE IVD MODULE. *TT
FORD, LINCOLN
ADVANCETRAC MALFUNCTION INDICATOR LAMP ON WITH DIAGNOSTIC TROUBLE CODE C1277 (STEERING WHEEL ANGLE 1 AN 2 CIRCUIT FAILURE) OR C1278 (STEERING WHEEL ANGLE 1 AND 2 SIGNAL FAULTED) IN THE IVD MODULE. *TT
Check vehicle applicability
10A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Ford | EXPEDITION ↗ | 2008 |
| Ford | EXPEDITION ↗ | 2007 |
| Ford | EXPEDITION ↗ | 2003 |
| Ford | F-150 ↗ | 2012 |
| Ford | F-150 ↗ | 2011 |
| Ford | F-150 ↗ | 2010 |
| Ford | F-150 ↗ | 2009 |
| Lincoln | NAVIGATOR ↗ | 2008 |
Code meaning and manufacturer information
Original wording in English · Historical directory labels; manufacturer applicability has not been established for every entry.
STEERING Wheel Angle 1and 2 Signal Faulted
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.