Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSMAZDA20086 S SPORT, 4D HATCHBACK, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 688 (ON-BOARD DIAGNOSTIC (ENGINE CONTROL SYSTEM L3) (3 OF 5))DTC P0500NOTES

2008 Mazda 6 s Sport, 4D Hatchback, Standard

DTC P0500: Notes

2008 Mazda 6 s Sport, 4D Hatchback, StandardSECTION Notes

WARNING: This page is about a different car, the 2007 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

DTC P0500 DETECTION CONDITION AND POSSIBLE CAUSES

DTC P0500

Vehicle speed sensor (VSS) circuit malfunction

DETECTION CONDITION

With ABS/TCS

If an error in the wheel speed signal from the ABS/DSC HU/CM is detected by CAN when the following conditions are met:
- Shift range in except P, N or R position (ATX)
- Neutral switch and clutch pedal position switch are OFF (MTX)
- Load is above 40%
- Engine speed is 2, 000 RPM or above
- Brake switch is OFF

MTX without ABS/TCS

Vehicle speed signal from vehicle speed sensor is below 3.7 km/h {2.3 mph} when following conditions are met:
- Neutral switch and clutch pedal position switch are OFF
- Load is above 40%
- Engine speed is 2, 000 RPM or above
- Brake switch is OFF

Diagnostic support note

This is a continuous monitor (CCM).
MIL illuminates if PCM detects above malfunction condition in two consecutive drive cycles or in one drive cycle while DTC for the same malfunction has been stored in PCM.
PENDING CODE is available if PCM detects the above malfunction condition during first drive cycle.
FREEZE FRAME DATA is available.
DTC is stored in PCM memory.

POSSIBLE CAUSE

Without ABS/TCS

VSS malfunction
Connector or terminal malfunction
Open circuit between PCM terminal 2M and VSS terminal A (MTX)
Open circuit between PCM terminal 2N and VSS terminal B (MTX)
Short to ground between PCM terminal 2M and VSS terminal A (MTX)
Short to ground between PCM terminal 2N and VSS terminal B (MTX)
Short to power supply between PCM terminal 2M and VSS terminal A (MTX)
Short to power supply between PCM terminal 2N and VSS terminal B (MTX)
PCM malfunction

With ABS/TCS

Front ABS wheel-speed sensor malfunction
ABS/TCS/DSC malfunction
Connector or terminal malfunction
PCM malfunction

Courtesy of MAZDA MOTORS CORP.

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.