Main Relay (Computer/Fuel System): Testing and Inspection

1. Remove the relay.
2. Check that there is continuity between terminals 4 and 6.

Standard value: 35 - 75 ohms





3. Use jumper leads to connect relay terminal No. 6 to the battery (+) terminal and terminal No. 4 to the battery (-) terminal. Check the continuity between relay terminal Nos. 2 - 8 while connecting and disconnecting the jumper lead at the battery (-) terminal.

Jumper lead Continuity between terminal
Nos. 2 - 8

Connected Continuity (0 ohms)
Disconnected No continuity (infinite ohms)

4. If there is a defect, replace the multiport fuel injection relay.