Check Power Supply And Ground Circuit

STEP CHECK SHEET

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.

Step

Check

Yes

1. CHECK POWER SUPPLY.

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.