Automatic Transmission System Problem Symptoms Table

Drivetrain. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25
A340F Automatic Transmission Transaxle. Hilux. Tgn26, 36 Kun25, 26, 35, 36 Ggn25

Automatic Transmission System -- Problem Symptoms Table


HINT:
  1. 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.
  2. 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.
  3. 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.
  4. If the problem still occurs even though there are no malfunctions in any of the circuits, check the TCM and replace it if necessary.
  5. *: When the circuit is defective, a DTC may be stored.

1. Chapter 1: Electronic Circuit Matrix Chart
Symptom
Suspected Area
See page
No up-shift (1st -> 2nd)
Shift solenoid valve S2 circuit*
HILUX_TGN26 RM000000W8709DX.html
Speed sensor SP2 circuit*
HILUX_TGN26 RM0000012TD05MX.html
TCM
HILUX_TGN26 RM000004QR6001X.html
No up-shift (2nd -> 3rd)
Shift solenoid valve S1 circuit*
HILUX_TGN26 RM000000W8609KX.html
TCM
HILUX_TGN26 RM000004QR6001X.html
No up-shift (3rd -> 4th)
Shift solenoid valve S2 circuit*
HILUX_TGN26 RM000000W8709DX.html
Park/neutral position switch circuit*
HILUX_TGN26 RM000000W840YKX.html
Engine coolant temperature sensor circuit (w/ EGR cooler)*
HILUX_TGN26 RM0000031HW04SX.html
Engine coolant temperature sensor circuit (w/o EGR cooler)*
HILUX_TGN26 RM0000031HW04TX.html
TCM
HILUX_TGN26 RM000004QR6001X.html
No down-shift (4th -> 3rd)
Shift solenoid valve S2 circuit*
HILUX_TGN26 RM000000W8709DX.html
Park/neutral position switch circuit*
HILUX_TGN26 RM000000W840YKX.html
TCM
HILUX_TGN26 RM000004QR6001X.html
No down-shift (3rd -> 2nd)
Shift solenoid valve S1 circuit*
HILUX_TGN26 RM000000W8609KX.html
TCM
HILUX_TGN26 RM000004QR6001X.html
No down-shift (2nd -> 1st)
Shift solenoid valve S2 circuit*
HILUX_TGN26 RM000000W8709DX.html
TCM
HILUX_TGN26 RM000004QR6001X.html
No lock-up or no lock-up off
Shift solenoid valve SL circuit*
HILUX_TGN26 RM0000013TU01QX.html
Stop light switch circuit*
HILUX_TGN26 RM000000W880LNX.html
Engine coolant temperature sensor circuit (w/ EGR cooler)*
HILUX_TGN26 RM0000031HW04SX.html
Engine coolant temperature sensor circuit (w/o EGR cooler)*
HILUX_TGN26 RM0000031HW04TX.html
TCM
HILUX_TGN26 RM000004QR6001X.html
No lock-up
Shift solenoid valve SL circuit*
HILUX_TGN26 RM0000013TU01QX.html
Engine coolant temperature sensor circuit (w/ EGR cooler)*
HILUX_TGN26 RM0000031HW04SX.html
Engine coolant temperature sensor circuit (w/o EGR cooler)*
HILUX_TGN26 RM0000031HW04TX.html
Stop light switch circuit*
HILUX_TGN26 RM000000W880LNX.html
Speed sensor NC0 circuit*
HILUX_TGN26 RM000000W7Y07OX.html
TCM
HILUX_TGN26 RM000004QR6001X.html
No lock-up off
Shift solenoid valve SL circuit*
HILUX_TGN26 RM0000013TU01QX.html
TCM
HILUX_TGN26 RM000004QR6001X.html
Shift point too high or too low
Shift solenoid valve SLT circuit*
HILUX_TGN26 RM000000W8A0E3X.html
Speed sensor NC0 circuit*
HILUX_TGN26 RM000000W7Y07OX.html
Speed sensor SP2 circuit*
HILUX_TGN26 RM0000012TD05MX.html
Throttle position sensor circuit (w/ EGR cooler)*
HILUX_TGN26 RM0000031HW04SX.html
Throttle position sensor circuit (w/o EGR cooler)*
HILUX_TGN26 RM0000031HW04TX.html
ATF temperature sensor circuit*
HILUX_TGN26 RM0000012XR06PX.html
TCM
HILUX_TGN26 RM000004QR6001X.html
Up-shift to 2nd while shift lever in L
Park/neutral position switch circuit*
HILUX_TGN26 RM0000030G907PX.html
TCM
HILUX_TGN26 RM000004QR6001X.html
Up-shift to 3rd while shift lever in 2
Park/neutral position switch circuit*
HILUX_TGN26 RM000000W840YKX.html
TCM
HILUX_TGN26 RM000004QR6001X.html
Up-shift to 4th from 3rd while engine is cold
Engine coolant temperature sensor circuit (w/ EGR cooler)*
HILUX_TGN26 RM0000031HW04SX.html
Engine coolant temperature sensor circuit (w/o EGR cooler)*
HILUX_TGN26 RM0000031HW04TX.html
TCM
HILUX_TGN26 RM000004QR6001X.html
Harsh engagement (N -> D)
Shift solenoid valve SLT circuit*
HILUX_TGN26 RM000000W8A0E3X.html
Speed sensor NC0 circuit*
HILUX_TGN26 RM000000W7Y07OX.html
TCM
HILUX_TGN26 RM000004QR6001X.html
Harsh engagement (lock-up)
Shift solenoid valve SL circuit*
HILUX_TGN26 RM0000013TU01QX.html
Speed sensor NC0 circuit*
HILUX_TGN26 RM000000W7Y07OX.html
Speed sensor SP2 circuit*
HILUX_TGN26 RM0000012TD05MX.html
TCM
HILUX_TGN26 RM000004QR6001X.html
Harsh engagement (any driving position)
Throttle position sensor circuit (w/ EGR cooler)*
HILUX_TGN26 RM0000031HW04SX.html
Throttle position sensor circuit (w/o EGR cooler)*
HILUX_TGN26 RM0000031HW04TX.html
Shift solenoid valve SL circuit*
HILUX_TGN26 RM0000013TU01QX.html
Shift solenoid valve SLT circuit*
HILUX_TGN26 RM000000W8A0E3X.html
Speed sensor NC0 circuit*
HILUX_TGN26 RM000000W7Y07OX.html
TCM
HILUX_TGN26 RM000004QR6001X.html
Poor acceleration
Shift solenoid valve SLT circuit*
HILUX_TGN26 RM000000W8A0E3X.html
TCM
HILUX_TGN26 RM000004QR6001X.html
No engine brake
TCM
HILUX_TGN26 RM000004QR6001X.html
No kick-down
TCM
HILUX_TGN26 RM000004QR6001X.html
Engine stalls when starting off or stopping
Shift solenoid valve SL circuit*
HILUX_TGN26 RM0000013TU01QX.html
TCM
HILUX_TGN26 RM000004QR6001X.html

2. Chapter 2: On-Vehicle Repair and Off-Vehicle Repair
Symptom
Suspected Area
See page
Vehicle does not move when shift lever is in any forward position or reverse position
Shift solenoid valve SLT
HILUX_TGN26 RM000000W8A0E3X.html
Transmission control cable
HILUX_TGN26 RM000002ZLK02SX.html
Manual valve
HILUX_TGN26 RM000003B2P00OX.html
Parking lock pawl
HILUX_TGN26 RM000003B2P00OX.html
O/D one-way clutch (F0)
HILUX_TGN26 RM000003B2P00OX.html
O/D direct clutch (C0)
HILUX_TGN26 RM000003B2P00OX.html
O/D brake (B0)
HILUX_TGN26 RM000003B2P00OX.html
O/D planetary gear unit
HILUX_TGN26 RM000003B2P00OX.html
Torque converter clutch
HILUX_TGN26 RM0000010NN01JX.html
Vehicle does not move with shift lever in R
2nd coast brake (B1)
HILUX_TGN26 RM000003B2P00OX.html
Front and rear planetary gear unit
HILUX_TGN26 RM000003B2P00OX.html
Direct clutch (C2)
HILUX_TGN26 RM000003B2P00OX.html
1st and reverse brake (B3)
HILUX_TGN26 RM000003B2P00OX.html
O/D direct clutch (C0)
HILUX_TGN26 RM000003B2P00OX.html
No up-shift (1st -> 2nd)
1-2 shift valve
HILUX_TGN26 RM000003B2P00OX.html
2nd brake (B2)
HILUX_TGN26 RM000003B2P00OX.html
No. 1 one-way clutch (F1)
HILUX_TGN26 RM000003B2P00OX.html
No up-shift (2nd -> 3rd)
2-3 shift valve
HILUX_TGN26 RM000003B2P00OX.html
Direct clutch (C2)
HILUX_TGN26 RM000003B2P00OX.html
No up-shift (3rd -> 4th)
3-4 shift valve
HILUX_TGN26 RM000003B2P00OX.html
O/D brake (B0)
HILUX_TGN26 RM000003B2P00OX.html
No down-shift (4th -> 3rd)
3-4 shift valve
HILUX_TGN26 RM000003B2P00OX.html
No down-shift (3rd -> 2nd)
2-3 shift valve
HILUX_TGN26 RM000003B2P00OX.html
No down-shift (2nd -> 1st)
1-2 shift valve
HILUX_TGN26 RM000003B2P00OX.html
2nd coast brake (B1)
HILUX_TGN26 RM000003B2P00OX.html
2nd brake (B2)
HILUX_TGN26 RM000003B2P00OX.html
No lock-up or no lock-up off
Lock-up control valve
HILUX_TGN26 RM000003B2P00OX.html
Lock-up relay valve
HILUX_TGN26 RM000003B2P00OX.html
Torque converter clutch
HILUX_TGN26 RM0000010NN01JX.html
Harsh engagement (N -> D)
Accumulator control valve
HILUX_TGN26 RM000003B2P00OX.html
Forward clutch (C1)
HILUX_TGN26 RM000003B2P00OX.html
Harsh engagement (lock-up)
Lock-up control valve
HILUX_TGN26 RM000003B2P00OX.html
Lock-up relay valve
HILUX_TGN26 RM000003B2P00OX.html
Torque converter clutch
HILUX_TGN26 RM0000010NN01JX.html
Harsh engagement (N -> R)
Accumulator control valve
HILUX_TGN26 RM000003B2P00OX.html
C2 accumulator
HILUX_TGN26 RM000003B2P00OX.html
Direct clutch (C2)
HILUX_TGN26 RM000003B2P00OX.html
1st and reverse brake (B3)
HILUX_TGN26 RM000003B2P00OX.html
Harsh engagement (N -> L)
Low coast modulator valve
HILUX_TGN26 RM000003B2P00OX.html
Harsh engagement (1st -> 2nd -> 3rd -> 4th)
Accumulator control valve
HILUX_TGN26 RM000003B2P00OX.html
Throttle valve
HILUX_TGN26 RM000003B2P00OX.html
Harsh engagement (2nd -> 3rd)
Accumulator control valve
HILUX_TGN26 RM000003B2P00OX.html
C2 accumulator
HILUX_TGN26 RM000003B2P00OX.html
2nd coast brake (B1)
HILUX_TGN26 RM000003B2P00OX.html
Harsh engagement (3rd -> 4th)
Accumulator control valve
HILUX_TGN26 RM000003B2P00OX.html
Solenoid modulator valve
HILUX_TGN26 RM000003B2P00OX.html
O/D direct clutch (C0)
HILUX_TGN26 RM000003B2P00OX.html
O/D brake (B0)
HILUX_TGN26 RM000003B2P00OX.html
O/D planetary gear unit
HILUX_TGN26 RM000003B2P00OX.html
Harsh engagement (4th -> 3rd)
Accumulator control valve
HILUX_TGN26 RM000003B2P00OX.html
C0 accumulator
HILUX_TGN26 RM000003B2P00OX.html
O/D brake (B0)
HILUX_TGN26 RM000003B2P00OX.html
Slip or shudder (forward and reverse, after warm-up)
Shift solenoid valve SLT
HILUX_TGN26 RM000000W8A0E3X.html
Transmission control cable
HILUX_TGN26 RM000002ZLK02SX.html
Oil strainer
HILUX_TGN26 RM0000013B001OX.html
Pressure relief valve
HILUX_TGN26 RM000003B2P00OX.html
Torque converter clutch
HILUX_TGN26 RM0000010NN01JX.html
O/D one-way clutch (F0)
HILUX_TGN26 RM000003B2P00OX.html
O/D direct clutch (C0)
HILUX_TGN26 RM000003B2P00OX.html
Slip or shudder (particular position, just after engine starts)
Shift solenoid valve SLT
HILUX_TGN26 RM000000W8A0E3X.html
Transmission control cable
HILUX_TGN26 RM000002ZLK02SX.html
Torque converter clutch
HILUX_TGN26 RM0000010NN01JX.html
Slip or shudder (shift lever in R)
Direct clutch (C2)
HILUX_TGN26 RM000003B2P00OX.html
1st and reverse brake (B3)
HILUX_TGN26 RM000003B2P00OX.html
Slip or shudder (1st)
Forward clutch (C1)
HILUX_TGN26 RM000003B2P00OX.html
No. 2 one-way clutch (F2)
HILUX_TGN26 RM000003B2P00OX.html
Slip or shudder (2nd)
2nd brake (B2)
HILUX_TGN26 RM000003B2P00OX.html
2nd coast brake (B1)
HILUX_TGN26 RM000003B2P00OX.html
No. 1 one-way clutch (F1)
HILUX_TGN26 RM000003B2P00OX.html
Slip or shudder (3rd)
Direct clutch (C2)
HILUX_TGN26 RM000003B2P00OX.html
Slip or shudder (4th)
O/D brake (B0)
HILUX_TGN26 RM000003B2P00OX.html
No engine braking (1st, shift lever in L)
Low coast modulator valve
HILUX_TGN26 RM000003B2P00OX.html
1st and reverse brake (B3)
HILUX_TGN26 RM000003B2P00OX.html
No engine braking (2nd, shift lever in 2)
2nd coast modulator valve
HILUX_TGN26 RM000003B2P00OX.html
2nd coast brake (B1)
HILUX_TGN26 RM000003B2P00OX.html
No engine braking (3rd, shift lever in 3)
O/D direct clutch (C0)
HILUX_TGN26 RM000003B2P00OX.html
No engine braking (1st to 4th, shift lever in D)
O/D direct clutch (C0)
HILUX_TGN26 RM000003B2P00OX.html
No kick-down
1-2 shift valve
HILUX_TGN26 RM000003B2P00OX.html
2-3 shift valve
HILUX_TGN26 RM000003B2P00OX.html
3-4 shift valve
HILUX_TGN26 RM000003B2P00OX.html
Poor acceleration (all positions)
Torque converter clutch
HILUX_TGN26 RM0000010NN01JX.html
Poor acceleration (4th)
O/D direct clutch (C0)
HILUX_TGN26 RM000003B2P00OX.html
O/D planetary gear unit
HILUX_TGN26 RM000003B2P00OX.html
Poor acceleration (other than 4th)
O/D brake (B0)
HILUX_TGN26 RM000003B2P00OX.html
Poor acceleration (other than 2nd)
2nd coast brake (B1)
HILUX_TGN26 RM000003B2P00OX.html
2nd brake (B2)
HILUX_TGN26 RM000003B2P00OX.html
Poor acceleration (1st and 2nd)
Direct clutch (C2)
HILUX_TGN26 RM000003B2P00OX.html
Poor acceleration (shift lever in L or R)
1st and reverse brake (B3)
HILUX_TGN26 RM000003B2P00OX.html
Poor acceleration (shift lever in R)
Forward clutch (C1)
HILUX_TGN26 RM000003B2P00OX.html
Engine stalls when starting off or stopping
Torque converter clutch
HILUX_TGN26 RM0000010NN01JX.html