Drivetrain. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25
A750F Automatic Transmission Transaxle. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25
Automatic Transmission System (For 1Kd-Ftv Without I-Art) -- Terminals Of Ecu |
- HINT:
- The standard voltage at each TCM terminal is shown in the table below.
- In the table, first follow the information under "Condition". Look under "Terminal No. (Symbol)" for the terminals to be inspected. The standard voltage between the terminals is shown under "Specified Condition".
- Use the illustration below as a reference for the ECU terminals.
TCM |

Terminal No. (Symbol) | Wiring Color | Terminal Description | Condition | Specified Condition |
G41-5 (BATT) - C24-1 (E1) | L - BR | Battery (for measuring battery voltage and for TCM memory) | Always | 11 to 14 V |
C24-12 (NSW) - C24-1 (E1) | L-Y - BR | PNP switch signal |
| Below 1 V |
| 11 to 14 V | |||
C24-11 (STA) - C24-1 (E1) | B-Y - BR | Starter signal | Cranking | 6 V or higher |
G40-9 (R) - C24-1 (E1) | R-Y - BR | R shift position switch signal |
| 11 to 14 V |
| Below 1 V | |||
G40-8 (D) - C24-1 (E1) | G-Y - BR | D shift position switch signal |
| 11 to 14 V |
| Below 1 V | |||
G40-13 (4) - C24-1 (E1) | G-O - BR | 4 shift position switch signal |
| 11 to 14 V |
| Below 1 V | |||
G40-12 (3) - C24-1 (E1) | L - BR | 3 shift position switch signal |
| 11 to 14 V |
| Below 1 V | |||
G40-11 (2) - C24-1 (E1) | G-R - BR | 2 shift position switch signal |
| 11 to 14 V |
| Below 1 V | |||
G40-10 (L) - C24-1 (E1) | GR-L - BR | L shift position switch signal |
| 11 to 14 V |
| Below 1 V | |||
C24-18 (S1) - C24-1 (E1) | GR - BR | S1 solenoid signal | Ignition switch ON | 11 to 14 V |
1st or 2nd gear | 11 to 14 V | |||
3rd, 4th or 5th gear | Below 1 V | |||
C24-17 (S2) - C24-1 (E1) | W-L - BR | S2 solenoid signal | Ignition switch ON | Below 1 V |
2nd or 3rd gear | 11 to 14 V | |||
1st, 4th or 5th gear | Below 1 V | |||
C24-16 (SR) - C24-1 (E1) | G - BR | SR solenoid signal | Ignition switch ON | Below 1 V |
5th gear | 11 to 14 V | |||
1st gear | Below 1 V | |||
C24-9 (SL1+) - C24-8 (SL1-) | GR - V | SL1 solenoid signal | Engine idling | Pulse generation |
C24-7 (SL2+) - C24-6 (SL2-) | W - R-W | SL2 solenoid signal | Engine idling | Pulse generation |
C24-20 (SLT+) - C24-19 (SLT-) | G-Y - L-B | SLT solenoid signal | Engine idling | Pulse generation |
C24-22 (SLU+) - C24-21 (SLU-) | B - Y | SLU solenoid signal | 4th gear (lock-up) or 5th gear (lock-up) | Pulse generation |
C24-25 (THO1) - C24-23 (E2) | L - G | No. 1 ATF temperature sensor signal | No. 1 ATF temperature: 115°C (239°F) or higher | Below 1.5 V |
C24-24 (THO2) - C24-23 (E2) | BR - G | No. 2 ATF temperature sensor signal | No. 2 ATF temperature: 115°C (239°F) or higher | Below 1.5 V |
G41-14 (STP) - C24-1 (E1) | G-W - BR | Stop light switch signal | Brake pedal is depressed | 7.5 to 14 V |
Brake pedal is released | Below 1.5 V | |||
C24-3 (NT+) - C24-2 (NT-) | V - P | Speed sensor NT signal | Engine idling (shift lever in P or N) | Pulse generation (See waveform 1) |
C24-30 (SP2+) - C24-29 (SP2-) | R - G | Speed sensor SP2 signal | Vehicle speed 20 km/h (12 mph) | Pulse generation (See waveform 2) |
G40-15 (L4) - C24-1 (E1) | G-W - BR | L4 shift position switch signal |
| 11 to 14 V |
| Below 1.5 V | |||
G40-16 (TFN) - C24-1 (E1) | W-G - BR | N shift position switch signal |
| 11 to 14 V |
| Below 1.5 V | |||
G41-6 (IG2) - C24-1 (E1) | B-O - BR | Ignition switch | Ignition switch ON | 11 to 14 V |
G41-25 (SPD1) - C24-1 (E1) | V-R - BR | Vehicle speed signal | Vehicle speed 20 km/h (12 mph) | Pulse generation (See waveform 3) |
G41-21 (CAN+) - C24-1 (E1) | V - BR | CAN communication line | Ignition switch ON | Pulse generation (See waveform 4) |
G41-20 (CAN-) - C24-1 (E1) | P - BR | CAN communication line | Ignition switch ON | Pulse generation (See waveform 5) |
Using an oscilloscope, check waveform 1.
Reference Terminal No. (Symbol) Tool Setting Condition C24-3 (NT+) - C24-2 (NT-) 1 V/DIV., 2 msec./DIV. Engine idling (shift lever in P or N) Using an oscilloscope, check waveform 2.
Reference Terminal No. (Symbol) Tool Setting Condition C24-30 (SP2+) - C24-29 (SP2-) 2 V/DIV., 20 msec./DIV. Vehicle speed 20 km/h (12 mph) Using an oscilloscope, check waveform 3.
Reference Terminal No. (Symbol) Tool Setting Condition G41-25 (SPD1) - C24-1 (E1) 2 V/DIV., 20 msec./DIV. Vehicle speed 20 km/h (12 mph) Using an oscilloscope, check waveform 4.
Reference Terminal No. (Symbol) Tool Setting Condition G41-21 (CAN+) - C24-1 (E1) 1 V/DIV., 10 msec./DIV. Ignition switch ON Using an oscilloscope, check waveform 5.
Reference Terminal No. (Symbol) Tool Setting Condition G41-20 (CAN-) - C24-1 (E1) 1 V/DIV., 10 msec./DIV. Ignition switch ON
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