Main Relay Inspection

1. Disconnect negative cable at battery.
2. Remove main relay (1) from relay box (2).
   Fig 1: Removing Main Relay From Relay Box

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3. Check for resistance between each two terminals as in table below. 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 Resistance Between Each Terminals

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4. 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 Resistance Between Terminals

Courtesy of SUZUKI OF AMERICA CORP.