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.
P0503Vehicle Speed Sensor 1 Erratic
Manufacturer communications
14Original wording in English
CHRYSLER
Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, a technician may find one or more of the following DTCs have been set: P06E9 - Engine Starter Perfor…
CHEVROLET
This preliminary informational bulletin provides a diagnostic tip for a customer concern of Malfunction Indicator Lamp (MIL) on, and technician finding DTC P0503 only set with no other symptoms.
CHEVROLET
This preliminary informational bulletin provides a diagnostic tip for a customer concern of Malfunction Indicator Lamp (MIL) on, and technician finding DTC P0503 only set with no other symptoms.
HYUNDAI
DIAGNOSTIC TROUBLE CODE (DTC) P0130 (OXYGEN SENSOR MALFUNCTION); DIAGNOSTIC TROUBLE CODE (DTC) P0503 (SPEED SENSOR MALFUNCTION; REVERSE TO DRIVE LURCH WHILE ROLLING BACKWARDS (ON AUTOMATIC TRANSAXLE EQUIPPED VEHICLES ONLY). *TT
Check vehicle applicability
29A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Cadillac | DEVILLE ↗ | 2003 |
| Cadillac | SEVILLE ↗ | 2003 |
| Chevrolet | CORVETTE ↗ | 2015 |
| Chrysler | PACIFICA ↗ | 2018 |
| Ford | EXPEDITION ↗ | 1998 |
| Ford | EXPEDITION ↗ | 1997 |
| Ford | F SERIES ↗ | 1998 |
| Ford | F SERIES ↗ | 1997 |
Code meaning and manufacturer information
Original wording in English · Historical directory labels; manufacturer applicability has not been established for every entry.
Vehicle Speed Sensor Intermittent/Erratic/High
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.