Suzuki Wagon R Manual page 719

7B-8 AUTOMATIC TRANSMISSION (4 A / T)
TRANSMISSION CONTROL MODULE (TCM)
The TCM is an electronic circuit component that controls gear shift and idle-up according to the signal from each
sensor. It is a microcomputer consisting of an IC, transistor, diode, etc. It is installed behind glove box.
1. Ignition switch
2. Stop lamp
3. Stop lamp switch
4. To battery
5. To ABS control module (if equipped)
6. To speedometer, EPS controller
(if equipped) and ABS control
module (if equipped)
7. To A / C compressor
8. Shift switch
9. Input revolution sensor
10. A / T VSS
11. A / T fluid temperature sensor
12. Lock-up solenoid
13. Shift solenoid No.1
14. Shift solenoid No.2
15. Shift solenoid No.3
16. Shift solenoid No.4
17. Shift solenoid No.5
18. Dropping resister
19. O / D (Over Drive) off switch
20. "O / D OFF" lamp
21. To IG 1
22. Monitor coupler
23. Data link connector
24. A / T relay