STI Home
Diagnostic Manual, Body and Accessories,
Volume 4.1

 Printable version
LOCATION:    14.4 Heated Seats (HS)   >   11 Diagnosis - Function Test


Diagnosis - Function Test

Preparation for Test:
1. Review 20, 22, 23,
2. Fuses OK,
3. Battery voltage 11 - 14 V,
4. Convienence feature (CF) functional, see GF72.29-P-2002GH

Electrical wiring diagrams:
Electrical Troubleshooting Manual, Model 163,
(available in Work Shop Information System [WIS] only).

Test step/Test scope Test condition Nominal value Possible cause/Remedy 1)
1.0 Left front seat
Seat heating stage I
Start engine.
Press front of left front seat heater switch (S51/1)
1 LED in switch will illuminate.
Seat bottom cushion and backrest will warm up.
23 1.0, 4.0, 5.0, 6.0,6.1

2.0 Left front seat
Seat heating stage II
Start engine.
Press rear of left front seat heater switch (S51/1)
2 LED'S in switch will illuminate. Seat cushion and backrest cushion will warm up noticeably more than stage I. 23 2.0, 5.1, 6.0, 6.1
3.0 Right front seat
Seat heating stage I
Start engine.
Press front of right front seat heater switch (S51/2)
1 LED in switch will illuminate.
Seat bottom cushion and backrest will warm up.
23 7.0, 10.0, 11.0,13.0, 3.1

4.0 Right front seat
Seat heating stage II
Start engine.
Press rear of right front seat heater switch (S51/2)
2 LED'S in switch will illuminate. Seat cushion and backrest cushion will warm up noticeably more than stage I. 23 9.0, 10.0, 12.0, 3.0, 3.1
1) Observe Preparation for Test, see 22.