Suzuki SY413 Service Manual page 2062

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 of an IC, transistor, diode, etc. It is installed at the right side of the steering column.
For Vehicle with WU-TWC
1. TCM
2. ECM
3. Output shaft speed sensor (A/T VSS)
4. Input shaft speed sensor
(Forward clutch cylinder revolution sensor)
5. Brake lamp switch
6. Power mode lamp
7. Snow mode lamp
8. Brake lamp
9. Power mode switch
10. Snow mode switch
11. O/D off switch
12. Transmission range sensor (Shift switch)
13. Shift lock solenoid (if equipped)
AUTOMATIC TRANSMISSION 7B1-9
14. Backup lamp
15. Shift indicator (if equipped)
16. Monitor connector No.2
17. Data link connector (DLC)
18. Shift solenoid-A (No. 1)
19. Shift solenoid-B (No. 2)
20. TCC (Lock-up) solenoid
21. Throttle pressure control solenoid
22. Transmission temperature sensor
(A/T fluid temp. sensor)
23. "O/D OFF" lamp
24. Ignition switch
25. Inhibitor switch
26. Starter relay
27. Terminal arrangement of TCM cou-
pler (viewed from harness side)