B4000 2WD V6-4.0L OHV (1994)
Main Relay (Computer/Fuel System): Testing and Inspection
Component
View: Underhood Power Distribution Box
INSPECTION
1. Remove the Powertrain Control Module (PCM) power relay from the underhood Power Distribution Box.
Check Continuity Between Terminals 30-87
2. Apply battery voltage (B+) to relay terminal 85, then ground relay terminal 86. Check for continuity between terminals 30 and 87 of the relay.
3. It not as specified, replace the PCM power relay.
