GX 470 V8-4.7L (2UZ-FE) (2004)
Seat Heater Switch: Testing and Inspection
INSPECT SEAT HEATER SWITCH LH
a. Inspect the continuity between the terminals when the switch is operated.
Standard:
b. Inspect the seat heater switch indicator light.
1. Connect the positive (+) lead from the battery to terminal 3 and the negative (-) lead to terminal 1.
2. Push the seat heater switch ON and check that the indicator light lights up.
If the result is not as specified, replace the seat heater switch and inspect the circuits connected to the other parts.
c. Inspect the seat heater switch illumination.
1. Connect the positive (+) lead from the battery to terminal 6 and the negative (-) lead to terminal 5.
2. Check that the switch illuminates.
If the result is not as specified, replace the seat heater switch or bulb.
INSPECT SEAT HEATER SWITCH RH
a. Inspect the continuity between the terminals when the switch is operated.