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 1Gr-Fe) -- Problem Symptoms Table |
- HINT:
- Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
- The Matrix Chart is divided into 2 chapters. When troubleshooting, check Chapter 1 first. If instructions are given in Chapter 1 to proceed to 2, proceed as instructed.
- If the instruction "Proceed to Next Suspected Area Shown in Problem Symptoms Table" is given in the flowchart for a circuit, proceed to the next suspected area in the table.
- If the problem still occurs even though there are no malfunctions in any of the circuits, check the ECM and replace it if necessary.
- *: When the circuit is defective, a DTC may be stored.
| Symptom | Suspected Area | See page |
| Up-shifts between 1st and 4th gear do not occur | Shift solenoid valve S1 circuit* | HILUX_TGN26 RM000000W860B1X.html |
| Shift solenoid valve S2 circuit* | HILUX_TGN26 RM000000W870ATX.html | |
| ECM | HILUX_TGN26 RM000004QR6001X.html | |
| No up-shift (4th -> 5th) | Transmission control switch circuit (D - 4)* | HILUX_TGN26 RM000000W840VBX.html |
| Speed sensor NT circuit* | HILUX_TGN26 RM000000W7Y08TX.html | |
| Shift solenoid valve SL1 circuit* | HILUX_TGN26 RM000000W8F0E9X.html | |
| Shift solenoid valve SL2 circuit* | HILUX_TGN26 RM000000W8G0DBX.html | |
| Shift solenoid valve SR circuit* | HILUX_TGN26 RM000000W8H09EX.html | |
| ECM | HILUX_TGN26 RM000004QR6001X.html | |
| No up-shift (3rd -> 4th) | Shift solenoid valve S2 circuit* | HILUX_TGN26 RM000000W870ATX.html |
| ECM | HILUX_TGN26 RM000004QR6001X.html | |
| No up-shift (1st -> 2nd) | Transmission control switch circuit (2 - L)* | HILUX_TGN26 RM000000W840VBX.html |
| Shift solenoid valve S2 circuit* | HILUX_TGN26 RM000000W870ATX.html | |
| ECM | HILUX_TGN26 RM000004QR6001X.html | |
| No down-shift (5th -> 4th) | Transmission control switch circuit (D - 4)* | HILUX_TGN26 RM000000W840VBX.html |
| Shift solenoid valve SL1 circuit* | HILUX_TGN26 RM000000W8F0E9X.html | |
| Shift solenoid valve SL2 circuit* | HILUX_TGN26 RM000000W8G0DBX.html | |
| Shift solenoid valve SR circuit* | HILUX_TGN26 RM000000W8H09EX.html | |
| ECM | HILUX_TGN26 RM000004QR6001X.html | |
| No down-shift (2nd -> 1st) | Transmission control switch circuit (2 - L)* | HILUX_TGN26 RM000000W840VBX.html |
| Shift solenoid valve S2 circuit* | HILUX_TGN26 RM000000W870ATX.html | |
| ECM | HILUX_TGN26 RM000004QR6001X.html | |
| Down-shifts between 4th and 1st gear do not occur | Shift solenoid valve S1 circuit* | HILUX_TGN26 RM000000W860B1X.html |
| Shift solenoid valve S2 circuit* | HILUX_TGN26 RM000000W870ATX.html | |
| ECM | HILUX_TGN26 RM000004QR6001X.html | |
| No lock-up | No. 1 ATF temperature sensor circuit* | HILUX_TGN26 RM000000W850LUX.html |
| L4 Position Switch Circuit | HILUX_TGN26 RM00000170Z015X.html | |
| Stop light switch circuit* | HILUX_TGN26 RM000002ZSO00OX.html | |
| Speed sensor NT circuit* | HILUX_TGN26 RM000000W7Y08TX.html | |
| Shift solenoid valve SLU circuit* | HILUX_TGN26 RM000000W890E8X.html | |
| Engine coolant temperature sensor circuit* | HILUX_TGN26 RM000002ZSO00OX.html | |
| ECM | HILUX_TGN26 RM000004QR6001X.html | |
| No lock-up off | Shift solenoid valve SLU circuit* | HILUX_TGN26 RM000000W890E8X.html |
| ECM | HILUX_TGN26 RM000004QR6001X.html | |
| Shift point too high or too low | Shift solenoid valve SLT circuit* | HILUX_TGN26 RM000000W8A0GDX.html |
| Speed sensor NT circuit* | HILUX_TGN26 RM000000W7Y08TX.html | |
| Speed sensor SP2 circuit* | HILUX_TGN26 RM0000012TD06RX.html | |
| Throttle position sensor circuit* | HILUX_TGN26 RM000002ZSO00OX.html | |
| No. 1 ATF temperature sensor circuit* | HILUX_TGN26 RM000000W850LUX.html | |
| L4 Position Switch Circuit | HILUX_TGN26 RM00000170Z015X.html | |
| ECM | HILUX_TGN26 RM000004QR6001X.html | |
| Up-shift to 5th from 4th while engine is cold | Engine coolant temperature sensor circuit* | HILUX_TGN26 RM000002ZSO00OX.html |
| ECM | HILUX_TGN26 RM000004QR6001X.html | |
| Up-shift to 5th from 4th while shift lever in 4 | Transmission control switch circuit (D - 4)* | HILUX_TGN26 RM000000W840VBX.html |
| ECM | HILUX_TGN26 RM000004QR6001X.html | |
| Up-shift to 4th from 3rd while shift lever in 3 | Park/neutral position switch circuit* | HILUX_TGN26 RM000000W840VBX.html |
| ECM | HILUX_TGN26 RM000004QR6001X.html | |
| Up-shift to 3rd from 2nd while shift lever in 2 | Park/neutral position switch circuit* | HILUX_TGN26 RM000000W840VBX.html |
| ECM | HILUX_TGN26 RM000004QR6001X.html | |
| Up-shift to 2nd from 1st while shift lever in L | Transmission control switch circuit (2 - L)* | HILUX_TGN26 RM000000W840VBX.html |
| ECM | HILUX_TGN26 RM000004QR6001X.html | |
| Harsh engagement (N -> D) | Speed sensor NT circuit* | HILUX_TGN26 RM000000W7Y08TX.html |
| Shift solenoid valve SL1 circuit* | HILUX_TGN26 RM000000W8F0E9X.html | |
| Shift solenoid valve SLT circuit* | HILUX_TGN26 RM000000W8A0GDX.html | |
| ECM | HILUX_TGN26 RM000004QR6001X.html | |
| Harsh engagement (Lock-up) | Speed sensor NT circuit* | HILUX_TGN26 RM000000W7Y08TX.html |
| Speed sensor SP2 circuit* | HILUX_TGN26 RM0000012TD06RX.html | |
| Shift solenoid valve SLU circuit* | HILUX_TGN26 RM000000W890E8X.html | |
| ECM | HILUX_TGN26 RM000004QR6001X.html | |
| Harsh engagement (Any gear position) | ECM | HILUX_TGN26 RM000004QR6001X.html |
| Poor acceleration | No. 2 ATF temperature sensor circuit* | HILUX_TGN26 RM0000012XR06NX.html |
| Engine coolant temperature sensor circuit* | HILUX_TGN26 RM000002ZSO00OX.html | |
| Shift solenoid valve SLT circuit* | HILUX_TGN26 RM000000W8A0GDX.html | |
| ECM | HILUX_TGN26 RM000004QR6001X.html | |
| No engine braking | ECM | HILUX_TGN26 RM000004QR6001X.html |
| No kick-down | ECM | HILUX_TGN26 RM000004QR6001X.html |
| Engine stalls when starting off or stopping | Shift solenoid valve SLU circuit* | HILUX_TGN26 RM000000W890E8X.html |
| ECM | HILUX_TGN26 RM000004QR6001X.html | |
| ATF temperature warning light remains on, lock-up in 3rd gear and/or shift point too high | No. 2 ATF temperature sensor circuit* | HILUX_TGN26 RM0000012XR06NX.html |
| Engine coolant temperature sensor circuit* | HILUX_TGN26 RM000002ZSO00OX.html | |
| ECM | HILUX_TGN26 RM000004QR6001X.html | |
| Shifting malfunction | Park/neutral position switch circuit* | HILUX_TGN26 RM000000W840VBX.html |
| ECM | HILUX_TGN26 RM000004QR6001X.html |