HomeP0503 · Code meaning and manufacturer information
Powertrain

P0503

Code meaning and manufacturer information

P0503

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.

Manufacturer communications

2

Original wording in English

011403

CADILLAC

Reported code forms P0503

DIAGNOSTIC TROUBLE CODE P0503, VEHICLE SPEED SENSOR CIRCUIT INTERMITTENT. CUSTOMER MAY DESCRIBE THE CONDITION AS THE SPEEDOMETER INTERMITTENTLY GOES TO ZERO, THE VEHICLE MAY JERK AT TIMES, THEY ARE UNABLE TO SET THE…

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11272002

CADILLAC

Reported code forms P0503

AUTO TRANSMISSION DIAGNOSTIC TROUBLE CODE P0503, VEHICLE SPEED SENSOR CIRCUIT INTERMITTENT. *TT

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Check vehicle applicability

1

A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

MakeModelModel year
CadillacSEVILLE2003

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.

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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.