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









MFI RELAY (ASD RELAY) AND FUEL PUMP RELAY INSPECTION
1. Remove the relay.
2. Check that there is continuity between (4) and (6) terminals.
- 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 terminals No. 2 & 8 while connecting and disconnecting the jumper lead at the battery (-) terminal.

Continuity between terminals No. 2 & 8
- Connected Continuity (0 ohms)
- Disconnected No continuity (infinite ohms)

4. If there is a defect, replace the relay.