All Function Fails To Operate

TROUBLESHOOTING CHART - ALL FUNCTION FAILS TO OPERATE

Step	Check	Yes	No
1 CHECK SEAT FUNCTIONS. Operate each power seat switch and check that each power seat function operates normally.	Does all function fails to operate?	Go to step 2.	Check the motor which does not operate. < Ref. to SOME OF THE MOTORS DO NOT OPERATE (DRIVER'S SEAT) , INSPECTION, Power Seat System. >
2 CHECK FUSE. Check the power seat fuse inside the fuse box.	Is the fuse blown out?	Replace the appropriate fuse.	Go to step 3.
3 CHECK POWER SUPPLY CIRCUIT. Disconnect the connectors for power seat switch and lumbar switch. Measure the voltage between harness connector and chassis ground. Connector & terminal (R200) No. 7 (+) - Chassis ground (-): (R195) No. 1 (+) - Chassis ground (-):	Is the voltage 10 V or more?	Go to step 4.	Check body harness.
4 CHECK POWER SUPPLY CIRCUIT. Measure the resistance between the harness connectors for power seat switch and lumbar switch and the chassis ground. Connector & terminal (R200) No. 8 - Chassis ground: (R195) No. 2 - Chassis ground:	Is the resistance less than 10 Ω?	Replace the faulty switch assembly.	Check body harness.