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 resistance between each two terminals as follows. If check results are as specified, proceed to next operation check. If not, replace.
Main relay resistance

Between terminals "A" and "B": (Infinity)

Between terminals "C" and "C": 160 - 240 ohm

Fig 2: Checking Resistance Between Main Relay Terminals
Courtesy of SUZUKI OF AMERICA CORP.
Check that there is continuity between terminals "A" and "B" when battery is connected to terminals "C" and "D". If found defective, replace.

Fig 3: Checking Continuity Between Terminals "A" And "B"
Courtesy of SUZUKI OF AMERICA CORP.