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Home >> Infiniti >> 1997 >> J30 Base >> Repair and Diagnosis >> Body & Frame >> Body, Cab Control Systems >> Timer Control System >> System Tests >> Main Power Supply & Ground Circuit Check >> Main Power Supply Circuit

Main Power Supply Circuit

Using a DVOM, check for battery voltage between ground and appropriate fuse with ignition switch in each specified position. See MAIN POWER SUPPLY VOLTAGE CHECK  table. Repair or replace as necessary. See WIRING DIAGRAMS  .

MAIN POWER SUPPLY VOLTAGE CHECK (1)

Fuse No. Ignition Switch Position Battery Voltage
7 OFF No
ACC Yes ON
Yes 23 OFF
Yes ACC Yes
ON Yes 32
OFF No ACC
No ON Yes
(1) See Figure .