Kia Optima Hybrid Owner's Manual Quiz
Automatic Transmission

Transmission Control Module (TCM) Circuit Diagrams

In this manual: Automatic Transmission
General Information — 4Engine Mechanical System — 50Engine Electrical System — 20Emission Control System — 30Engine Control System/Fuel System — 84Automatic Transmission — 98Drive Shaft and Axle — 15Suspension System — 36Steering — 12Restraints — 50Brake System — 38Body (Interior and Exterior) — 54Body Electrical System — 233Heating, Ventilation, and Air Conditioning — 57
~4min read

TCM Connector and Terminal Function

TCM Terminal Function

Connector [A]
Pin Description Pin Description
2 - 33 On/Off Solenoid Valve A (SS-A)
3 Line Pressure Control Solenoid Valve (LINE_VFS) 34 Ground (Power 1)
4 Engine Clutch Control Solenoid Valve (EC_VFS) 35 Ground (Power 2)
5 35R Clutch Control Solenoid Valve (35R/C_VFS) 36 Sport Mode Down Switch
6 Input Speed Sensor Power 37 Sport Mode Up Switch
7 Output Speed Sensor Power 38 Sport Mode Select Switch
8 Input Speed Sensor Signal 40 Inhibitor Switch Signal "S1"
9 Output Speed Sensor Signal 47 Solenoid Power Supply 1
17 Underdrive Brake Control Solenoid Valve
(UD/B_VFS)		 48 Solenoid Power Supply 2
49 TCM Input Power 1 (for Solenoid)
18 2-6 Brake Control Solenoid Valve (26/B_VFS) 50 TCM Input Power 2 (for Solenoid)
19 Shift Lock Solenoid 51 PWM Command
20 Overdrive Clutch Control Solenoid Valve
(OD/C_VFS)		 52 OPU Status
53 Oil Temperature Sensor (-)
25 Inhibitor Switch Signal "S2" 54 Transmission Fluid Temperature Sensor (+)
26 Inhibitor Switch Signal "S3" 55 CAN Communication Line (HIGH)
27 "S4" Inhibitor Switch Signal 56 CAN Communication Line (Low)
32 On/Off Solenoid Valve (SS-B) 56 CAN Communication Line (Low)
33 On/Off Solenoid Valve A (SS-A) ? ?

Connector [B]
Pin Description Pin Description
1 Power Ground 4 Battery Power (B+)
2 Battery Power (B+) 5 ECU Ground
3 Power Ground 6 Battery Power (B+)

TCM Input/Output Signal Terminals
Pin Description Condition Input/Output Value
Type Level
3 Line Pressure Control Solenoid Valve (LINE_VFS) ? Output 0 V/Battery Voltage Level
9 V < Battery Voltage Level < 16 V
4 Engine Clutch Control Solenoid Valve (EC_VFS) ? Output 0 V/Battery Voltage Level
9 V < Battery Voltage Level < 16 V
5 35R Clutch Control Solenoid Valve (35R/C_VFS) ? Output 0 V/Battery Voltage Level
9 V < Battery Voltage Level < 16 V
6 Input Speed Sensor Power ON Power 0 V/7.5 V
OFF
7 Output Speed Sensor Power ON Power 0 V/7.5 V
OFF
8 Input Speed Sensor Signal High Input 0.7 V/1.4 V
Low
9 Output Speed Sensor Signal High Input 0.7 V/1.4 V
Low
17 Underdrive Brake Control Solenoid Valve (UD/B_VFS) ? Output 0 V/Battery Voltage Level
9 V < Battery Voltage Level < 16 V
Power Source: V_SOL2
18 2-6 Brake Control Solenoid Valve (26/B_VFS) ? Output 0 V/Battery Voltage Level
9 V < Battery Voltage Level < 16 V
Power Source: V_SOL2
19 Shift Lock Solenoid High Output 0 V/Battery Voltage Level 9 V < Battery Voltage Level < 16 V
Low
20 Overdrive Clutch Control Solenoid Valve (OD/C_VFS) ? Output 0 V/Battery Voltage Level
9 V < Battery Voltage Level < 16 V
Power Source: V_SOL1
22 Back-Up Lamp Relay R ON Output 0 V/Battery Voltage Level
9 V < Battery Voltage Level < 16
Other
25 Inhibitor Switch Signal "S2" High Input 0 V/Battery Voltage Level
9 V < Battery Voltage Level < 16 V
Low
26 Inhibitor Switch Signal "S3" High Input 0 V/Battery Voltage Level
9 V < Battery Voltage Level < 16 V
Low
27 "S4" Inhibitor Switch Signal High Input 0 V/Battery Voltage Level
9 V < Battery Voltage Level < 16 V
Low
32 On/Off Solenoid Valve B (SS-B) High Output 0 V / Battery Voltage Level
9 V < Battery Voltage Level < 16 V
Low
33 On/Off Solenoid Valve A (SS-A) High Output 0 V / Battery Voltage Level
9 V < Battery Voltage Level < 16 V
Low
34 Ground (Power 1) ?
?		 Ground 0 V
35 Ground (Power 2) Ground 0 V
36 Sport Mode Down Switch Down Input 0 V/Battery Voltage Level
9 V < Battery Voltage Level < 16 V
Other
37 Sport Mode Up Switch On Input 0 V/Battery Voltage Level
9 V < Battery Voltage Level < 16 V
Other
38 Sport Mode Select Switch Sport Mode Input 0 V/Battery Voltage Level
9 V < Battery Voltage Level < 16 V
Other
40 Inhibitor Switch Signal "S1" High Input 0 V/Battery Voltage Level
9 V < Battery Voltage Level < 16
Low
47 Solenoid Power Supply 1 ON Power 0 V/Battery Voltage Level
9 V < Battery Voltage Level < 16 V
OFF
48 Solenoid Power Supply 2 ON Power 0 V/Battery Voltage Level
9 V < Battery Voltage Level < 16 V
OFF
49 TCM Input Power 1 (for Solenoid) ? Power Battery Voltage Level
9 V < Battery Voltage Level < 16 V
50 TCM Input Power 2 (for Solenoid) ? Power Battery Voltage Level
9 V < Battery Voltage Level < 16
51 PWM Command ?
?		 Output 0 V / Battery Voltage Level
9 V < Battery Voltage Level < 16 V
52 OPU Status Input 0 V / Battery Voltage Level
9 V < Battery Voltage Level < 16 V
53 Oil Temperature Sensor (-) ? Ground 0 V
54 Transmission Fluid Temperature Sensor (+) ON? Input? 0 V/3.3 V
OFF
55 CAN Communication Line (HIGH) High? Command? ?
Low?
56 CAN Communication Line (Low Level)? High? Command? ?
Low?

Wiring Diagram

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