Transaxle Control Module (TCM) Learning
When shift shock is occurred or parts related with the transaxle are replaced, TCM learning should be performed. In the following case, TCM learning is required.
- Transaxle assembly replacement
- TCM replacement
- TCM upgrading
Scheme 145
- Automatic Transaxle Fluid (ATF) temperature: 40 ~ 100° C (104 ~ 212° F)
- Static learning Repeat the below shift pattern four times or more with stepping on the brake.
- Driving learning Drive the vehicle from a stop in D through all gears 1st, 2nd, 3rd, 4th, 5th and 6th gear while holding the throttle steady at the specified Throttle Position Sensor (TPS) value (15~25%).
Scheme 146
Scheme 147
Scheme 148
Functions
- 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 optimal gear setting.
- Determines the need for damper clutch (D/C) activation and engages the clutch accordingly.
- Calculates the optimal line pressure level by constantly monitoring the torque level and adjusts the pressure accordingly.
- Diagnoses the automatic transaxle for faults and failures.
Scheme 149
TCM terminal function
| Pin | Description |
|---|---|
| 22 | Overdrive clutch control solenoid valve |
| 23 | Pressure control solenoid valve |
| 26 | SS-B solenoid valve (ON/OFF) |
| 37 | Sports mode up switch |
| 38 | Sports mode select switch |
| 39 | Oil temperature sensor (+) |
| 43 | Underdrive brake control solenoid valve |
| 44 | 35R clutch control solenoid valve |
| 45 | Torque converter control solenoid valve |
| 46 | 26 brake control solenoid valve |
| 58 | Sports mode down switch |
| 59 | Oil temperature sensor (-) |
| 73 | Inhibitor switch signal "S4" |
| 74 | Inhibitor switch signal "S2" |
| 75 | Inhibitor switch signal "S3" |
| 87 | Solenoid power 1 |
| 88 | Solenoid power 2 |
| 89 | SS-A solenoid valve A (ON/OFF) |
| 94 | Inhibitor switch signal "S1" |
| 95 | Output speed sensor power |
| 96 | Input speed sensor power |
| 99 | Input speed sensor signal |
| 100 | Output speed sensor signal |
PIN DESCRIPTION - CONNECTOR (A)
| Pin | Description |
|---|---|
| 1 | GND (Power) |
| 2 | GND (Power) |
| 3 | VB (Battery voltage) |
| 4 | Ground (Power) |
| 5 | VB |
| 60 | CAN High |
| 68 | IG.1 (Ignition key) |
| 77 | CAN Low |
PIN DESCRIPTION - CONNECTOR (B)
TCM Terminal input/output signal
| Pin | Description | Condition | Input/output value | |
|---|---|---|---|---|
| Type | Level | |||
| 22 | Overdrive clutch control solenoid valve | Output | 0V/Battery voltage level | |
| 9V < Battery voltage level < 16V | ||||
| 23 | Line pressure control solenoid valve | Output | 0V/Battery voltage level | |
| 9V < Battery voltage level < 16V | ||||
| 26 | SS-B solenoid valve (ON/OFF) | High | Output | 0V/Battery voltage level |
| Low | 9V < Battery voltage level < 16V | |||
| 37 | Sports mode up switch | Up ON | Input | 0V/Battery voltage level |
| Other | 9V < Battery voltage level < 16V | |||
| 38 | Sports mode select switch | Sport mode | Input | 0V/Battery voltage level |
| Other | 9V < Battery voltage level < 16V | |||
| 39 | Oil temperature sensor (+) | ON | Input | 0V/3.3V |
| OFF | ||||
| 43 | Underdrive brake control solenoid valve | Output | 0V/Battery voltage level | |
| 9V < Battery voltage level < 16V | ||||
| Power supply: V_SOL2 | ||||
| 44 | 35R clutch control solenoid valve | Output | 0V/Battery voltage level | |
| 9V < Battery voltage level < 16V | ||||
| 45 | Torque converter control solenoid valve | Output | 0V/Battery voltage level | |
| 9V < Battery voltage level < 16V | ||||
| 46 | 26 brake control solenoid valve | Output | 0V/Battery voltage level | |
| 9V < Battery voltage level < 16V | ||||
| Power supply: V_SOL2 | ||||
| 58 | Sports mode down switch | Down ON | Input | 0V/Battery voltage level |
| Other | 9V < Battery voltage level < 16V | |||
| 59 | Oil temperature sensor (-) | Ground | 0V | |
| 73 | Inhibitor switch signal "S4" | High | Input | 0V/Battery voltage level |
| Low | 9V < Battery voltage level < 16V | |||
| 74 | Inhibitor switch signal "S2" | High | Input | 0V/Battery voltage level |
| Low | 9V < Battery voltage level < 16V | |||
| 75 | Inhibitor switch signal "S3" | High | Input | 0V/Battery voltage level |
| Low | 9V < Battery voltage level < 16V | |||
| 89 | SS-A solenoid valve A (ON/OFF) | High | Output | 0V/Battery voltage level |
| Low | 9V < Battery voltage level < 16V | |||
| 94 | Inhibitor switch signal "S1" | High | Input | 0V/Battery voltage level |
| Low | 9V < Battery voltage level < 16V | |||
| 95 | Output speed sensor power | ON | Power | 0V/7.5V |
| OFF | ||||
| 96 | Input speed sensor power | ON | Power | 0V/7.5V |
| OFF | ||||
| 99 | Input speed sensor signal | High | Input | 0.7V/1.4V |
| Low | ||||
| 100 | Output speed sensor signal | High | Input | 0.7V/1.4V |
| Low | ||||
PIN DESCRIPTION - CONNECTOR (A)
Scheme 150
Scheme 151
Signal Code Table
| P | P-R | R | R-N | N | N-D | D | |
|---|---|---|---|---|---|---|---|
| S1 | 12V | 12V | 0 | 0 | 0 | 0 | 0 |
| S2 | 0 | 12V | 12V | 12V | 0 | 12V | 0 |
| S3 | 0 | 0 | 0 | 12V | 12V | 0 | 0 |
| S4 | 0 | 0 | 0 | 0 | 0 | 12V | 12V |
Scheme 152
Scheme 153
Scheme 154
Scheme 155
Scheme 156
- Set shift lever to "N" position.
- Remove the air duct. (Refer to " «AIR CLEANER»(ref-609292-S06516152692014041600000) ")
- Remove the battery and the battery tray. (Refer to " «BATTERY»(ref-609293-S32339350752014041600000) ")
- Disconnect the inhibitor switch connector (A).
- Remove the shift cable mounting nut (B). Tightening torque: 0.8 ~ 1.2 kgf.m
- Remove the manual control lever (B) and the washer after removing a nut (A). Tightening torque: 1.8 ~ 2.5 kgf.m CAUTION: Using a SST (09480-A3800), fix the inhibitor manual control lever in the N jig hole (A) when you assemble the inhibitor (B).
- Remove the inhibitor assembly (A) after removing the bolts (2ea). Tightening torque: 9.8 ~ 11.8 N.m (1.0 ~ 1.2 kgf.m, 7.2 ~ 8.7 lb-ft) CAUTION: When installing, tighten the inhibitor assembly mounting bolt lightly.