EFI Main Relay
- Relay is mounted under left side of instrument panel. Turn ignition off. Check for battery voltage on Black/Red wire terminal of relay. If battery voltage is present, go to next step. If battery voltage is not present, check Black/Red wire circuit between relay and battery, including fuse No. 14.
- Turn ignition on. Check for battery voltage on Black/White wire terminal of relay. If battery voltage is present, go to next step. If battery voltage is not present, check Black/White wire circuit between relay and battery, including fuse No. 8.
- Turn ignition off. Disconnect negative battery cable. Disconnect relay connector and remove relay. At relay connector, check continuity between Black/Red wire terminal and Blue/Black wire terminal. If continuity exists, replace relay. If continuity does not exist, go to next step.
- Check continuity between Black/White wire terminal and Black wire terminal. If resistance is 56-84 ohms, go to next step. If resistance is not within specification, replace relay.
- Energize relay by applying battery voltage to Black/White wire terminal and ground to Black wire terminal. With relay energized, if continuity does not exist between Black/Red wire terminal and Blue/Black wire terminal, replace relay.