Check Power Supply And Ground Circuit

POWER SUPPLY AND GROUND CIRCUIT CHECKING PROCEDURE CHART

Step	Check	Yes	No
1 CHECK POWER SUPPLY. Disconnect the harness connector of body integrated unit. Measure the voltage between harness connector terminal and chassis ground. Connector & terminal (i84) No. 34 (+) - Chassis ground (-): (B281) No. 2 (+) - Chassis ground (-):	Is the voltage more than 10 V?	Go to step 2.	Check the harness for open or short circuit between body integrated unit and fuse.
2 CHECK GROUND CIRCUIT. Measure the resistance between harness connector terminal and chassis ground. Connector & terminal (B280) No. 22 - Chassis ground: (B281) No. 8,9 - Chassis ground:	Is the resistance less than 10 Ω?	The power supply and ground circuit are OK.	Repair the harness.