F 450 4WD Super Duty V10-6.8L VIN D (2004)
Mini ISO Relay: Testing and Inspection
Relay Component Test - Mini ISO Relay
RELAY COMPONENT TEST - MINI ISO RELAY
Use the 73III Automotive Meter to check for continuity between terminal 85 and all other terminals. If resistance is 5 ohms or less between terminal 85
and any other terminal, install a new relay. If resistance is greater than 5 ohms, continue with the test. Use two jumper wires to connect relay terminals
86 and 30 directly to the positive battery terminal. Use the 73 Digital Multimeter set in the volts position to check for voltage at terminal 87A. If battery
voltage is not indicated, install a new relay. If battery voltage is indicated, connect a third jumper wire to terminal 85 and ground the jumper wire to a
know good ground. Check for voltage at terminal 87. If battery voltage is not indicated, install a new relay.
