Seat Temperature Relay: Testing and Inspection

INSPECTION

CONTINUITY TEST OF HEATED SEAT SWITCH





1. Check for continuity between terminals.





2. Check that the indicator is lighted at HI or LO when battery voltage is supplied to terminal 5 and terminal 8 is grounded.
3. Check that indicator is lighted when battery voltage is supplied to terminals 2 and terminal 6.

SEAT CUSHION HEATER CHECK





Measure the resistance between terminals.
Standard value: At room temperature 20° C (68° F)
Between heated seat assembly terminals 1 and seatback heater terminal 1: 3.84 - 4.69ohms
Between heated seat assembly terminals 2 and seatback heater terminal 1: 0.14 - 0.18ohms


SEATBACK HEATER CHECK





Measure the resistance between terminals.
Standard value: At room temperature 20° C (68° F)
Between terminals 1 and terminal 2: 5.40 - 6.60ohms


HEATED SEAT RELAY CONTINUITY CHECK