Main Relay Inspection

Disconnect negative cable at battery.
Remove main relay (1) from relay box (2).

Fig 1: Removing Main Relay From Relay Box
Courtesy of SUZUKI OF AMERICA CORP.
Check for resistance between each two terminal. If check results are as specified, proceed to next operation check. If not, replace main relay.
Main relay resistance

Between "A" and "B": (infinity)

Between "C" and "D": 79-95 ohm at 20 °C (68 °F)

Fig 2: Checking Main Relay Resistance
Courtesy of SUZUKI OF AMERICA CORP.
Check for resistance between terminals "A" and "B" when battery is connected to terminals "C" and "D".
If check result is not specified, replace main relay.

Main relay resistance with turned on

Less than 1 ohm

Fig 3: Checking Main Relay Resistance With Turned On
Courtesy of SUZUKI OF AMERICA CORP.