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2A3-1 / 2C3-1 AND SIMILAR

wiring diagram

 

Connect pin #4 to ign ( master switch ) 7-30 volts positive.

Connect pin #2 to one of the sender leads. ( does not matter which sender lead )

Connect the other sender lead to a good engine ground.

Connect pin #5 to the same engine ground as the sender.

Note! Connecting pin #5 to the same ground point as the sender ground will help reduce the pointer fluctuation when a heavy load is applied to the electrical system. ie. lights, alternators, electric pumps etc.

 

 

CLICK HERE > TEMPERATURE INST < CLICK HERE

CLICK HERE > WIRING INDEX < CLICK HERE