P0500

Test 1:

Tests 2 - 6:

Tests 7 - 11:

Tests 12 - 13:

SYMPTOM
P0500 - NO VEHICLE SPEED SENSOR SIGNAL

WHEN MONITORED
The Vehicle Speed Signal test is run when the engine boost is greater than 7 psi and the engine speed is above 1024 rpm but less than 2784 rpm.

SET CONDITION
This code will set if no Vehicle Speed Signal is received from the CAB (Controller Antilock Brakes) Module for more than 15 seconds for 2 consecutive trips.

POSSIBLE CAUSES
- CAB module diagnostic trouble codes present
- Vehicle speed signal circuit open
- Vehicle speed signal circuit shorted to voltage
- Controller Antilock Brakes (CAB)
- Powertrain Control Module (no vehicle speed sensor signal)
- Vehicle speed signal wiring harness observable defect
- Vehicle speed signal circuit shorted to ground