Page 545 of 2543
(*A= (E10), B= (E9))
Terminals
Symbols
Wiring
Color
Condition
Standard
Value
A14 ± B69 TRC ± E1 O eBR Ignition switch ON 10 ± 14 V
A13 ± B69 TRC± E1 W±R eBR Ignition switch ON 10 ± 14 V
B12 ± B31 SLT±SLT LG±R eW±G Ignition switch ON 10 ± 14 V
A18 B69
ME1
GYeBR
IG ON
Pattern select SW: MANU 10 ± 14 V
A18 ± B69 M ± E1 G±Y eBR IG ON Pattern select SW: NORM Below 1 V
A28 B69
OD2 E1
VGeBR
IG ON
O/D main SW: ON 10 ± 14 V A28 ± B69 OD2 ± E1 V±G eBR IG ON O/D main SW: OFF Below 0.5 V A27 ± B69 EFI ± E1 BeBR Ignition switch ON 10 ± 14 V A26 ± B69 EFI ± E1 W eBR Ignition switch ON 10 ± 14 V
± A340E (2JZÐGTE) AUTOMATIC TRANSMISSIONTROUBLESHOOTINGAT2±61
Page 546 of 2543

MATRIX CHART OF PROBLEM SYMPTOMS
If a normal code is displayed during the diagnostic trouble code check but the trouble still occurs, check
the circuits for each symptom in the order given in the charts on the following pages and proceed to the
page given for troubleshooting.
The Matrix Chart is divided into 3 chapters.
Chapter 1: Electronic Circuit Matrix Chart
Chapter 2: On±vehicle Repair Matrix Chart
Chapter 3: Off±vehicle Repair Matrix Chart
When troubleshooting, check Chapter 1 first. If instructions are given in Chapter 1 to proceed to Chapter
2 or 3, proceed as instructed.
1. If the instruction ºProceed to next circuit inspection shown on matrix chartº is given in the flow chart for each
circuit, proceed to the circuit with the next highest number in the table to continue the check.
2. If the trouble still occurs even though there are no abnormalities in any of the other circuits, then check or
replace the ECM. AT2±62
± A340E (2JZÐGTE) AUTOMATIC TRANSMISSIONTROUBLESHOOTING
Page 547 of 2543
±Memo±
± A340E (2JZÐGTE) AUTOMATIC TRANSMISSIONTROUBLESHOOTINGAT2±63
Page 548 of 2543

Chapter 1. Electronic Circuit
AT2±72AT2±75AT2±79AT2±82AT2±85AT2±89AT2±97
Suspect Area
Symptom
Vehicle does not move in any forward position and reverse
position
No up±shift
No down±shift
No lock±up
Vehicle does not move in particular position or positions
Harsh engagement
No engine braking
1st " 2nd
2nd " 3rd
3rd " O/D
O/D " 3rd
3rd " 2nd
2nd " 1st
N " D
Large shift shock or Engine stalls when starting off or stopping.
*No pattern select
No.1 Vehicle speed
sensor circuit
See Page
No lock±up off
Slip or Shudder
Poor acceleration
No kick±down
Lock±up
Any driving position
Forward and reverse
Any particular position
Shift point too high or too low
Up±shifts to 2nd while in L position
Up±shifts to 3rd while in L position
Up±shifts to O/D from 3rd while O/D switch is OFF
Up±shifts to O/D from 3rd while engine is cold
No.1, No.2 solenoidcircuitNo.2 Vehicle speed
sensor circuitNo.4 solenoid
circuitNo.3 solenoid
circuit(Sub)±throttle
position sensor circuitO/D direct clutch
speed sensor circuit
* The automatic transmission in not shifted into the manual mode when the automatic transmission fluid
temperature is too high. AT2±64
± A340E (2JZÐGTE) AUTOMATIC TRANSMISSIONTROUBLESHOOTING
Page 549 of 2543
AT2±101AT2±99AT2±103AT2±105AT2±108AT2±111EG±312AT2±60AT2±66AT2±68AT2±92BR±128AT2±70
Park/neutral position
switchPattern select switch
circuitStop light switch
circuitKick±down switch
circuitO/D switch O/D OFF
indicator light circuitEngine coolant temp.
sensor circuitO/D cancel signal
circuitECMNo.5 solenoid
circuitOFF±Vehicle repair
matrix chartOn±Vehicle repair
matrix chartTRAC ECUA/T fluid temp.
sensor circuit
± A340E (2JZÐGTE) AUTOMATIC TRANSMISSIONTROUBLESHOOTINGAT2±65
Page 550 of 2543
AT2±43
Suspect Area
Symptom
Vehicle does not move in any forward position and reverse
No up±shift
No down±shift
No lock±up or No lock±up off
Vehicle does not move in R position
Harsh engagement
1st
1st " 2nd
2nd " 3rd
3rd " O/D
O/D " 3rd
3rd " 2nd
2nd " 1st
N " D
No engine braking
Transmission
control rod
Slip or Shudder
2nd
No kick±down
Lock±up
Forward and Reverse
Particular position
Manual valveParking lock pawlOil strainer1±2 shift valve2±3 shift valve
N " R
N " L
1st " 2nd (D position)
1st " 2nd " 3rd " O/D
2nd "3rd
3rd " O/D
1st " 2nd (2 position)
O/D " 3rd
Vehicle does not move in any particular position or positions
(except R position)
Reverse control
valve
See Page
Chapter 2. On±Vehicle Repair
( : A340E, A340F, A340H AUTOMATIC TRANSMISSION Repair Manual Pub. No.RM391U) AT2±66
± A340E (2JZÐGTE) AUTOMATIC TRANSMISSIONTROUBLESHOOTING
Page 551 of 2543
3±4 shift valveLock±up control
valveLock±up relay
valveAccumulator
control valveSolenoidmodulator
valve
C1 accumulator
Orifice control
valveSolenoid relay
valveC2 accumulatorLow coast
modulator valveB2 accumulator2nd coast
modulator valvePressure relief
valveOFF±Vehicle repair
matrix chartB0 accumulatorC0 accumulator
± A340E (2JZÐGTE) AUTOMATIC TRANSMISSIONTROUBLESHOOTINGAT2±67
Page 552 of 2543

Suspect Area
Symptom
See Page
Vehicle does not move in any forward position and reverse position
No up±shift
No down±shift
Vehicle does not move in R position
1st " 2nd
2nd " 3rd
3rd " O/D
O/D " 3rd
3rd " O/D
2nd " 1st
2nd " 3rd
N " R
N " D
Lock±up
R position
2nd
3rd
1st ~ 3rd
O/D
1st
2nd
All positions
O/D
Other than O/D
Other than 2nd
1st an 2nd
R position
1st and R position
Engine stalls when starting off or stopping
Poor acceleration
No enginebraking
Slip or Shudder
Harsh
engagement
Vehicle does notmove in:
No lock±up or No lock±up off
Forward & Reverse (After warm±up)_
Forward & Reverse (Just after engine starts)
R position
D, 2 and L position
D and 2 positions
2 position
L position
O/D one±way
clutch (F
o)
O/D planetrygear unitO/D directclutch (C
o)
O/D brake (B
o)
1st and reverse
brake (B
3)
Torque
converter clutch
Chapter 3. Off±Vehicle Repair
( : A340E, A340F, A340H AUTOMATIC TRANSMISSION Repair Manual Pub. No.RM391U) AT2±68
± A340E (2JZÐGTE) AUTOMATIC TRANSMISSIONTROUBLESHOOTING