1. Remove the Multiport Fuel Injection (MFI) relay.
MFI Relay Terminal ID:
MFI Relay Inspection:
2. Check the continuity between the MFI relay terminals.
MFI Relay Inspection:
3. Use jumper leads to connect MFI relay terminal (7) to the battery (+) terminal and terminal (5) to the battery (-) terminal.
CAUTION: If jumper leads are not connected properly, the relay will be damaged.
MFI Relay Inspection:
4. Check the voltage at MFI relay terminal (1) while connecting and disconnecting the jumper lead at the battery (-)terminal.
MFI Relay Inspection:
5. Use the jumper leads to connect MFI relay terminal (8) to the battery (+) terminal and terminal D6 to the battery (-) terminal.
MFI Relay Inspection:
6. Check the continuity between MFI relay terminals (2) - (4) and terminals (3) - (4) while connecting and disconnecting the jumper lead at the battery (-) terminal.
7. If there is a defect, replace the MFI relay.