Main Relay
- Relay is mounted on top of ECM, located under glove compartment. Turn ignition off. Check for battery voltage on White wire terminal of relay. If battery voltage is present, go to next step. If battery voltage is not present, check White wire circuit between relay and battery, including fuse No. 7.
- 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. Remove relay from main fuse box. Check for continuity between terminals "A" and "B". See Fig 1
. Continuity should not be present. If continuity exists, replace relay.
- Measure resistance between terminals "C" and "D". Resistance should be 56-84 ohms. If resistance is not correct, replace relay. Apply battery voltage and ground to terminals "C" and "D". Continuity should now be present across terminals "A" and "B". If continuity is not present, replace relay.
Courtesy of SUZUKI OF AMERICA CORP.