FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

Diagnostic Procedure

DIAGNOSTIC PROCEDURE

1. Check operation of speedometer.
- If OK proceed to step 2.
- If not OK check speedometer circuit.
2. Check voltage of terminal SPD.
- If OK check and replace Engine Control Module.
- If not OK check speedometer circuit.