Hyundai Elantra: Automatic Transaxle Control System / Transaxle Control Module (TCM) Schematic Diagrams
Hyundai Elantra AD (2016-2020) Service Manual / Automatic Transaxle System / Automatic Transaxle Control System / Transaxle Control Module (TCM) Schematic Diagrams
| TCM Connector and Terminal Function |
| TCM Terminal Function |
| Connector [A] | Connector [K] | ||
| Pin | Description | Pin | Description |
| A1 | Overdrive clutch control solenoid valve (OD/C_VFS) | K8 | FLEXRAY COMM. Signal HIGH |
| A5 | Torque converter control solenoid (T/CON_VFS) | K25 | FLEXRAY COMM. Signal LOW |
| A6 | Pressure control solenoid (VFS-LINE) | K59 | CCP CAN LOW |
| A7 | 26 brake control solenoid valve (26/B_VFS) | K60 | CAN (LOW) |
| A8 | Inhibitor switch signal "S2" | K76 | CCP CAN HIGH |
| A9 | Sports mode down switch | K77 | CAN (HIGH) |
| A10 | Sports mode up switch | ||
| A22 | Underdrive brake control solenoid valve (UD/B_VFS) | ||
| A26 | 35R clutch control solenoid valve (35R/C_VFS) | ||
| A27 | Inhibitor switch signal "S1" | ||
| A30 | Sports mode select switch | ||
| A43 | Solenoid power 1 (A1, A5, A26, A48) | ||
| A44 | Solenoid power 2 (A6, A7, A22, A47) | ||
| A45 | GND (Power) | ||
| A46 | GND (Power) | ||
| A47 | ON/OFF solenoid valve B (SS-B) | ||
| A48 | ON/OFF solenoid valve A (SS-A) | ||
| A49 | Oil temperature sensor (-) | ||
| A64 | VB (Battery voltage) | ||
| A68 | Shift lock solenoid control | ||
| A70 | Inhibitor switch signal "S3" | ||
| A72 | Input speed sensor signal | ||
| A73 | Output speed sensor power | ||
| A85 | VB (Battery voltage) | ||
| A91 | Oil temperature sensor (+) | ||
| A92 | Output speed sensor signal | ||
| A93 | Inhibitor switch signal "S4" | ||
| A94 | Input speed sensor power | ||
| TCM Terminal input/ output signal |
| Pin | Description | Condition | Input/output value | |
| Type | Level | |||
| A1 | Overdrive clutch control solenoid valve (OD/C_VFS) | - | Output | 0V/Battery voltage level |
| 9V < Battery voltage level < 16V | ||||
| A5 | Torque converter control solenoid valve (T/CON_VFS) | - | Output | 0V/Battery voltage level |
| 9V < Battery voltage level < 16V | ||||
| A6 | Line pressure control solenoid valve (LINE_VFS) | - | Output | 0V/Battery voltage level |
| 9V < Battery voltage level < 16V | ||||
| A7 | 26 brake control solenoid valve (26/B_VFS) | - | Output | 0V/Battery voltage level |
| 9V < Battery voltage level < 16V | ||||
| A8 | Inhibitor switch signal "S2" | High | Input | 0V/Battery voltage level |
| Low | 9V < Battery voltage level < 16V | |||
| A9 | Sports mode down switch | Down ON | Input | 0V/Battery voltage level |
| Other | 9V < Battery voltage level < 16V | |||
| A10 | Sports mode up switch | Up ON | Input | 0V/Battery voltage level |
| Other | 9V < Battery voltage level < 16V | |||
| A22 | Underdrive brake control solenoid valve (UD/B_VFS) | - | Output | 0V/Battery voltage level |
| 9V < Battery voltage level < 16V | ||||
| A26 | 35R clutch control solenoid valve (35R/C_VFS) | - | Output | 0V/Battery voltage level |
| 9V < Battery voltage level < 16V | ||||
| A27 | Inhibitor switch signal "S1" | High | Input | 0V/Battery voltage level |
| Low | 9V < Battery voltage level < 16V | |||
| A30 | Sports mode select switch | Sport mode | Input | 0V/Battery voltage level |
| Other | 9V < Battery voltage level < 16V | |||
| A43 | Solenoid power 1 (A1, A5, A26, A48) | Power | 0V/Battery voltage level | |
| 9V < Battery voltage level < 16V | ||||
| A44 | Solenoid power 2 (A6, A7, A22, A47) | Power | 0V/Battery voltage level | |
| 9V < Battery voltage level < 16V | ||||
| A47 | ON/OFF solenoid valve B (SS-B) | High | Output | 0V/Battery voltage level |
| Low | 9V < Battery voltage level < 16V | |||
| A48 | ON/OFF solenoid valve A (SS-A) | High | Output | 0V/Battery voltage level |
| Low | 9V < Battery voltage level < 16V | |||
| A49 | Oil temperature sensor (-) | - | Ground | 0V |
| A70 | Inhibitor switch signal "S3" | High | Input | 0V/Battery voltage level |
| Low | 9V < Battery voltage level < 16V | |||
| A72 | Input speed sensor signal | High | Input | 0.7V/1.4V |
| Low | ||||
| A73 | Output speed sensor power | ON | Power | 0V/7.5V |
| OFF | ||||
| A91 | Oil temperature sensor (+) | ON | Input | 0V/3.3V |
| OFF | ||||
| A92 | Output speed sensor signal | High | Input | 0.7V/1.4V |
| Low | ||||
| A93 | Inhibitor switch signal "S4" | High | Input | 0V/Battery voltage level |
| Low | 9V < Battery voltage level < 16V | |||
| A94 | Input speed sensor power | ON | Power | 0V/7.5V |
| OFF | ||||
| Circuit Diagram |
[Inhibitor switch]
Transaxle Control Module (TCM) Description and Operation
Description
•
Monitors the vehicle's operating conditions to determine the optimal gear setting.
•
Performs a gear change if the current gear setting differs from the identified optima ...
Transaxle Control Module (TCM) Repair procedures
Inspection
Transaxle Control Module(TCM) Problem Inspection Procedure
1.
TEST TCM GROUND CIRCUIT: Measure resistance between TCM and
chassis ground using the backside of TCM harness connector a ...
Other information:
Hyundai Elantra AD (2016-2020) Service Manual: Injector Specifications
Specification
ItemSpecificationCoil Resistance (?)13.8 ~ 15.2 [20°C(68°F)]
...
Hyundai Elantra AD (2016-2020) Service Manual: SS-A Solenoid Valve(ON/OFF) Specifications
Specifications
? Control type : Normally low type
ShapeItems Specifications Control current(voltage) [V] 9 ~ 16 Supply pressure [kpa (kgf/cm?, psi)] 490.33 (5.0, 71.12) Control pressure [kpa (kgf/cm?, psi)] 0 ~ 490.33 (0 ~ 5.0, 0 ~ 71.12) Internal resistance(?) 10 ~ ...
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