P0500 — Vehicle Speed Sensor A Malfunction — 6.7 Powerstroke

Diagnostic reference for P0500 on 6.7 Powerstroke. Focus on how to diagnose the vehicle-speed signal issue; do not provide step-by-step repair of…

Updated October 15, 2026

What it means

The PCM sees no or implausible vehicle-speed signal.¹

Most likely causes

1. ABS-module / wheel-speed data path to PCM — On this platform P0500 is usually a wiring/ABS-module data issue rather than the engine.¹
2. Wiring/connector integrity for vehicle-speed signal — Generic definition is PCM sees no or implausible vehicle-speed signal, which can be caused by wiring/ABS-module data issues on this platform.¹

How to diagnose

1. Verify code and freeze-frame conditions; confirm P0500 is present and note speed, gear, and ABS status.
2. Check for related ABS codes or wheel-speed sensor faults; P0500 on 6.7 Powerstroke is typically a wiring/ABS-module data issue rather than engine.
3. Inspect vehicle-speed signal availability at PCM via scan tool data; look for implausible or missing speed while wheels are turning.
4. Check wiring and connectors in the ABS-to-PCM data path for corrosion, damage, or poor contact.
5. Compare wheel-speed sensor readings across all wheels; mismatch or dropout points to ABS module/wiring rather than engine sensors.

Parts and tools you may need

• Scan tool with live data and ABS module access
• Digital multimeter
• Wiring diagrams for ABS/PCM communication

Tools you’ll need

• OBD-II scan tool — Reads P0500 and live vehicle speed/ABS wheel-speed data to confirm missing or implausible speed signal.
• digital multimeter — Checks continuity and voltage on the ABS-to-PCM vehicle-speed signal wiring and connectors for opens or corrosion.
• oscilloscope — Captures the vehicle-speed signal waveform from the ABS module to the PCM to detect dropouts or implausible pulses.
• wheel-speed sensor tester — Verifies each wheel-speed sensor output while rotating wheels to isolate a sensor or ABS module data path fault.

Rough cost and difficulty

Typical US independent-shop figures; labor runs about $120–$180 per hour (dealers charge more). Confirm the diagnosis before buying parts.

When to see a pro

If speed signal remains implausible after data checks, have a qualified diesel technician inspect the ABS module and PCM communication wiring. Do not attempt repairs on safety-critical systems without proper training and equipment.

Check for recalls

Recalls are tied to your truck’s VIN, so check yours directly: enter the VIN at NHTSA’s recall lookup. Open safety recalls are repaired free at a dealer.

Sources

Repair videos: P0500 on the 6.7 Power Stroke

Third-party videos, not ours — picked for this engine. Confirm anything against the factory service information for your truck.

How to Replace Vehicle Speed Sensor 2011-2016 Ford F-350 (6R140 Transmission) — TRQ · 17K views