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Home/DTC Codes/Chevrolet/Impala/2005-2005 3.4L V6/P0502
P0502

Vehicle Speed Sensor A Low Input

2005-2005 Chevrolet Impala 3.4L V6

Moderate SeverityPowertrainGeneric (SAE)

The 2005 Chevrolet Impala is equipped with a 3.4L V6 engine. Below you'll find detailed p0502 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.

Description

Low or no signal from VSS.

Symptoms

  • Speedometer reads zero
  • No shifting
  • Cruise control dead

Common Causes

  • Faulty VSS
  • Open circuit
  • Disconnected sensor

Diagnostic Steps

  1. Test signal output
  2. Check wiring
  3. Test sensor

Repair Notes

Replace VSS or repair wiring.

Related Codes

P0500Vehicle Speed Sensor AP0503Vehicle Speed Sensor A Intermittent/Erratic/High

Other Powertrain Codes

P0502 on Other Vehicles

Chevrolet Astro

1996-1996 4.3L V6 Vortec

Chevrolet Astro

1997-1997 4.3L V6 Vortec

Chevrolet Astro

1998-1998 4.3L V6 Vortec

Chevrolet Astro

1999-1999 4.3L V6 Vortec

Chevrolet Astro

2000-2000 4.3L V6 Vortec

Chevrolet Astro

2001-2001 4.3L V6 Vortec

Chevrolet Astro

2002-2002 4.3L V6 Vortec

Chevrolet Astro

2003-2003 4.3L V6 Vortec

Common Questions

What does code P0502 mean on a 2005-2005 Chevrolet Impala?

P0502 stands for "Vehicle Speed Sensor A Low Input". Low or no signal from VSS.

What are the symptoms of P0502 on a Chevrolet Impala?

Common symptoms of P0502 include: Speedometer reads zero, No shifting, Cruise control dead.

What causes P0502 on a 2005-2005 Chevrolet Impala?

Common causes of P0502 include: Faulty VSS, Open circuit, Disconnected sensor.

Last updated: March 2026

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