Starter Relay
- Remove starter relay from battery junction box. Check relay continuity. Continuity should exist between relay terminals No. 85 and 86, and between relay terminals No. 30 and 87a. See Fig 1
. Continuity should not exist between relay terminals No. 30 and 87. If continuity is as specified, go to next step. If continuity is not as specified, replace relay.
- Disconnect the ohmmeter. Connect terminals No. 30 and 85 to a 12 volt DC power and terminal No. 86 to ground. Measure voltage between terminal No. 86 and 87. If voltage is 12 volts, continue the test. If not , replace the relay. Disconnect power from terminal No. 85 and measure voltage between terminal No. 87a and 86. If the voltage is 12 volts, the relay is okay. If not, replace the relay.
Courtesy of FORD MOTOR CO.