Hyundai Equus: Transmission Control Module (TCM) Schematic Diagrams
Second generation VI (2009–2025) / Hyundai Equus VI 2009-2025 Service Manual / Automatic Transmission System (SBC) / Automatic Transmission Control System / Transmission Control Module (TCM) Schematic Diagrams
| 1. TCM Connector and Terminal Function |
| 2. TCM Terminal Function |
Connector
| Pin | Description | Pin | Description |
| 1 | Battery power | 48 | - |
| 2 | Battery power | 49 | - |
| 3 | Power(IG 1) | 50 | 27 Brake control solenoid valve |
| 4 | Ground | 51 | - |
| 5 | Ground | 52 | ON/OFF solenoid valve |
| 6 | Ground | 53 | - |
| 7 | - | 54 | Input speed sensor signal |
| 8 | - | 55 | Middle speed sensor signal |
| 9 | - | 56 | Output speed sensor signal |
| 10 | - | 57 | - |
| 11 | - | 58 | - |
| 12 | - | 59 | - |
| 13 | Inhibitor switch signal "S1" | 60 | - |
| 14 | Oil temperature sensor (+) | 61 | Sports mode select switch |
| 15 | - | 62 | - |
| 16 | Sports mode up switch | 63 | - |
| 17 | Sports mode down switch | 64 | - |
| 18 | Presure switch | 65 | CAN communication line (LOW) |
| 19 | - | 66 | - |
| 20 | - | 67 | - |
| 21 | Inhibitor switch signal "S2" | 68 | - |
| 22 | Inhibitor switch signal "S4" | 69 | - |
| 23 | Inhibitor switch signal "S3" | 70 | Solenoid supply power 2 |
| 24 | - | 71 | - |
| 25 | - | 72 | - |
| 26 | - | 73 | Solenoid supply power (4&OD/C,35R/C,6/C,L/P) |
| 27 | - | 74 | - |
| 28 | - | 75 | - |
| 29 | Solenoid supply power(UD/C,27/B,8LR/B,D/C) | 76 | - |
| 30 | Input speed sensor power | 77 | - |
| 31 | Middle speed sensor power | 78 | - |
| 32 | - | 79 | - |
| 33 | - | 80 | - |
| 34 | - | 81 | - |
| 35 | - | 82 | - |
| 36 | - | 83 | - |
| 37 | - | 84 | - |
| 38 | Oil temperature sensor (-) | 85 | CCP CAN Low |
| 39 | - | 86 | CCP CAN High |
| 40 | - | 87 | CAN communication line (High) |
| 41 | 35R Clutch control solenoid valve | 88 | - |
| 42 | 8LR Brake control solenoid valve | 89 | - |
| 43 | Underdrive clutch control solenoid valve | 90 | - |
| 44 | 6Speed clutch control solenoid valve | 91 | - |
| 45 | Line presure control solenoid valve | 92 | - |
| 46 | Damper clutch control solenoid valve | 93 | Output speed sensor power |
| 47 | 4&OD Clutch control solenoid valve | 94 | - |
| 3. TCM Terminal input/output signal |
| Pin | Description | Condition | Input/Output Value | |
| Type | Level | |||
| 1 | Battery power | ON | Power | 0V/Battery voltage level |
| 2 | OFF | 9V < Battery voltage level < 16V | ||
| 3 | Power (IG 1) | ON | Input | Battery voltage level |
| OFF | 0V voltage level | |||
| 4 | Ground | - | Ground | 0V(GND level) |
| 5 | Ground | - | Ground | 0V(GND level) |
| 6 | Ground | - | Ground | 0V(GND level) |
| 7 | - | ON | Output | About 1V |
| OFF | Battery voltage level | |||
| 8 | - | - | Output | 0V/Battery voltage level |
| 9V < Battery voltage level <16V | ||||
| 9 | - | - | - | - |
| 10 | - | ON | Pulse input | About 9V~11V voltage level |
| OFF | 0V voltage level | |||
| 11 | - | - | - | - |
| 12 | - | - | - | - |
| 13 | Inhibitor switch signal "S1" | ON | Input | Battery voltage level |
| OFF | 0V(GND) | |||
| 14 | Oil temperature sensor (+) | - | Input | Maximum 5V voltage level |
| 15 | - | - | - | - |
| 16 | Sports mode up switch | ON | Input | 0V(GND) |
| OFF | Battery voltage level | |||
| 17 | Sports mode down switch | ON | Input | 0V(GND) |
| OFF | Battery voltage level | |||
| 18 | Presure switch | - | Input | 0V/Battery voltage level |
| 19 | - | - | - | - |
| 20 | - | - | - | - |
| 21 | Inhibitor switch signal "S2" | ON | Input | Battery voltage level |
| OFF | 0V(GND) | |||
| 22 | Inhibitor switch signal "S4" | ON | Input | Battery voltage level |
| OFF | 0V(GND) | |||
| 23 | Inhibitor switch signal "S3" | ON | Input | Battery voltage level |
| OFF | 0V(GND) | |||
| 24 | - | - | - | - |
| 25 | - | - | - | - |
| 26 | - | - | Output | 0V/Battery voltage level |
| 9V < Battery voltage level <16V | ||||
| 27 | - | - | - | - |
| 28 | - | - | Output | 0V/Battery voltage level |
| 9V < Battery voltage level <16V | ||||
| 29 | Solenoid supply power (UD/C,27/B,8LR/B,D/C) | - | Power | Battery voltage level |
| 9V < Battery voltage level <16V | ||||
| 30 | Input speed sensor power | ON | Output | About 9V voltage level |
| OFF | 0V | |||
| 31 | Middle speed sensor power | ON | Output | About 9V voltage level |
| OFF | 0V | |||
| 32 | - | - | - | - |
| 33 | - | - | - | - |
| 34 | - | - | - | - |
| 35 | - | - | - | - |
| 36 | - | - | - | - |
| 37 | - | - | - | - |
| 38 | Oil temperature sensor (-) | - | Input | Minimum 0V voltage level |
| 39 | - | - | - | - |
| 40 | - | - | - | - |
| 41 | 35R Clutch control solenoid valve | - | Output | 0V/Battery voltage level |
| 9V < Battery voltage level <16V | ||||
| 42 | 8LR Brake control solenoid valve | - | Output | 0V/Battery voltage level |
| 9V < Battery voltage level <16V | ||||
| 43 | Underdrive clutch control solenoid valve | - | Output | 0V/Battery voltage level |
| 9V < Battery voltage level <16V | ||||
| 44 | 6Speed clutch control solenoid valve | - | Output | 0V/Battery voltage level |
| 9V < Battery voltage level <16V | ||||
| 45 | Line presure control solenoid valve | - | Output | 0V/Battery voltage level |
| 9V < Battery voltage level <16V | ||||
| 46 | Damper clutch control solenoid valve | - | Output | 0V/Battery voltage level |
| 9V < Battery voltage level <16V | ||||
| 47 | 4&OD Clutch control solenoid valve | - | Output | 0V/Battery voltage level |
| 9V < Battery voltage level <16V | ||||
| 48 | - | - | - | - |
| 49 | - | - | - | - |
| 50 | 27 Brake control solenoid valve | - | Output | 0V/Battery voltage level |
| 9V < Battery voltage level <16V | ||||
| 51 | - | - | - | - |
| 52 | ON/OFF solenoid valve | - | Output | 0V/Battery voltage level |
| 9V < Battery voltage level <16V | ||||
| 53 | - | ON | Output | 0V |
| OFF | Battery voltage level | |||
| 54 | Input speed sensor signal | x | Pulse input | Low : About 0.7V, High : 1.4V |
| NTU1 | x | Maximum/Minimum Frequency : 9kHz/0Hz | ||
| 55 | Middle speed sensor signal | x | PulseInput | Low : About 0.7V, High : 1.4V |
| NTU2 | x | Maximum/Minimum Frequency : 9kHz/0Hz | ||
| 56 | Output speed sensor signal | x | PulseInput | Low : About 0.7V, High : 1.4V |
| NAB | x | Maximum/Minimum Frequency : 9kHz/0Hz | ||
| 57 | - | - | - | - |
| 58 | - | - | - | - |
| 59 | - | - | - | - |
| 60 | - | - | - | - |
| 61 | Sports mode select switch | Sports mode | Input | 0V/Battery voltage level |
| Other | 9V < Battery voltage level <16V | |||
| 62 | - | - | - | - |
| 63 | - | - | - | - |
| 64 | - | - | - | - |
| 65 | CAN communication line (LOW) | - | - | - |
| 66 | - | - | - | - |
| 67 | - | - | - | - |
| 68 | - | - | - | - |
| 69 | - | - | - | - |
| 70 | Solenoid supply power 2 | - | Power | Battery voltage level |
| 9V < Battery voltage level <16V | ||||
| 71 | x | - | - | - |
| 72 | x | - | - | - |
| 73 | Solenoid supply power (4&OD/C,35R/C,6/C,L/P) | - | Power | Battery voltage level |
| 9V < Battery voltage level <16V | ||||
| 74 | x | - | - | - |
| 75 | x | - | - | - |
| 76 | x | - | - | - |
| 77 | x | - | - | - |
| 78 | x | - | - | - |
| 79 | x | - | - | - |
| 80 | x | - | - | - |
| 81 | x | - | - | - |
| 82 | x | - | - | - |
| 83 | x | - | - | - |
| 84 | x | - | - | - |
| 85 | x | - | - | - |
| 86 | x | - | - | - |
| 87 | CAN communication line (High) | - | - | - |
| 88 | x | x | x | x |
| 89 | x | x | x | x |
| 90 | x | x | x | x |
| 91 | x | x | x | x |
| 92 | x | - | - | - |
| 93 | Output speed sensor power | ON | Output | About 9V voltage level |
| OFF | 0V | |||
| 94 | x | x | x | x |
Transmission Control Module (TCM) Description and Operation
Description
Transmission Control Module (TCM) is the automatic
Transmission's brain. The module receives and processes signals from
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Transmission Control Module (TCM) Repair procedures
Inspection
TCM Problem Inspection Procedure
1.
TEST TCM GROUND CIRCUIT: Measure resistance between TCM and
chassis ground using the backside of TCM harness connector as TCM side
check poin ...
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