TOYOTA CAMRY 1999 Service Repair Manual

± DIAGNOSTICSAUTOMATIC TRANSAXLE (A140E)
DI±399
634 Author: Date:
7. HYDRAULIC TEST
Measure the line pressure.
NOTICE:

Do the test at normal operation fluid temperature 50 ± 80 °C (122 ± 176 °F).

The line pressure test should always be carried out in pairs. One technician should observe
the conditions of wheels or wheel stoppers outside the vehicle while the other is doing the test.

Be careful to prevent SST's hose from interfering with the exhaust pipe.
(1) Warm up the ATF.
(2) Remove the test plug on the transaxle case front left side and connect SST.
(See page AX±17 for the location to connect SST)
SST 09992±00095 (09992±00231, 09992±00271)
(3) Fully apply the parking brake and chock the 4 wheels.
(4) Connect an OBD II scan tool or TOYOTA hand±held tester to DLC3.
(5) Start the engine and check idling speed.
(6) Keep your left foot pressing firmly on the brake pedal and shift into D position.
(7) Measure the line pressure when the engine is idling.
(8) Depress the accelerator pedal all the way down. Quickly read the highest line pressure when
engine speed reaches stall speed.
(9) In the same manner, do the test in R position.
Specified line pressure:
ConditionD position kPa (kgf/cm2, psi)R position kPa (kgf/cm2, psi)
Idling362 ± 422 (3.7 ± 4.3, 53 ± 61)618 ± 794 (6.3 ± 8.1, 90 ± 115)
Stall735 ± 862 (7.5 ± 8.8, 107 ± 125)1,373 ± 1,608 (14.0 ± 16.4, 199 ± 233)
If the measured pressure is not up to the specified value, recheck the throttle cable adjustment and retest.
Evaluation
ProblemPossible cause
If the measured values at all positions are higher

Throttle cable out of adjustment

Throttle valve defective

Regulator valve defective
If the measured values at all positions are lower

Throttle cable out of adjustment

Throttle valve defective

Regulator valve defective

Oil pump defective

O/D direct clutch defective
If pressure is low in the D position only
D position circuit fluid leakage

Forward clutch defective
If pressure is low in the R position only

R position circuit fluid leakage

Direct clutch defective

1st & reverse brake defective

Q00200
DI±400
± DIAGNOSTICSAUTOMATIC TRANSAXLE (A140E)
635 Author: Date:
8. MANUAL SHIFTING TEST
HINT:
By this test, it can be determined whether the trouble is within
the electrical circuit or is a mechanical problem in the transaxle.
(a) Disconnect the solenoid wire.
(b) Inspect the manual driving operation.
Check that the shift and gear positions correspond to the
table below.
While driving, shift through the L, 2 and D positions.
Check that the gear change corresponds to the shift posi-
tion.
Shift PositionGear Position
DO/D
23rd
L1st
RReverse
PPawl Lock
HINT:
If the L, 2 and D gear positions are difficult to distinguish, do the
above test.
If any abnormality is found in the above test, the problem is in
the transaxle itself.
(c) Connect the solenoid wire.
(d) Clear out the DTC (See page DI±389).

DI02X±02
± DIAGNOSTICSAUTOMATIC TRANSAXLE (A140E)
DI±401
636 Author: Date:
DIAGNOSTIC TROUBLE CODE CHART
If a DTC is displayed during the DTC check, check the circuit listed for that code in the table below and pro-
ceed to the page given.
* :
...MIL light up
DTC No.
(See Page)Detection ItemTrouble AreaMIL *Memory
P0500
(DI±408)Vehicle Speed Sensor Malfunc-
tion
(No.1 Vehicle Speed Sensor)
Open or short in No.1 vehicle speed sensor circuit
No.1 vehicle speed sensor
Combination meter
ECM
Automatic transaxle (clutch, brake or gear etc.)


P0750
(DI±411)Shift Solenoid A Malfunction
(Shift Solenoid Valve No.1)Shift solenoid valve No.1 is stuck open or closed
Valve body is blocked up or stuck
Automatic transaxle (clutch, brake or gear etc.)


P0753
(DI±413)Shift Solenoid A Electrical Mal-
function
(Shift Solenoid Valve No.1)Open or short in shift solenoid valve No.1 circuit
Shift solenoid valve No.1
ECM


P0755
(DI±411)Shift Solenoid B Malfunction
(Shift Solenoid Valve No.2)Shift solenoid valve No.2 is stuck open or closed
Valve body is blocked up or stuck
Automatic transaxle (clutch, brake or gear etc.)


P0758
(DI±413)Shift Solenoid B Electrical Mal-
function
(Shift Solenoid Valve No.2)Open or short in shift solenoid valve No.2 circuit
Shift solenoid valve No.2
ECM


P0770
(DI±417)Shift Solenoid E Malfunction
(Shift Solenoid Valve SL)
Shift solenoid valve SL is stuck open or closed
Valve body is blocked up or stuck
Lock±up clutch
Automatic transaxle (clutch, brake or gear etc.)


P0773
(DI±419)Shift Solenoid E Electrical Mal-
function
(Shift Solenoid Valve SL)Open or short in shift solenoid valve SL circuit
Shift solenoid valve SL
ECM


P1520
(DI±170)Stop Light Switch Signal Mal-
functionOpen or short in stop light switch circuit
Stop light switch
ECM


P1780
(DI±424)Park/Neutral Position Switch
MalfunctionShort in park/neutral position switch circuit
Park/neutral position switch
ECM



DI02Y±02
D00938
Shift Solenoid Valve SLVehicle Speed SensorECMO/D Main SwitchO/D OFF Indicator Light
DLC3
Stop Light Switch
Shift Solenoid Valve No.2
Shift Solenoid Valve No.1 Park/Neutral Position Switch
DI±402
± DIAGNOSTICSAUTOMATIC TRANSAXLE (A140E)
637 Author: Date:
PARTS LOCATION

DI1IZ±01
FI6526
1 2 3 4
5 6 7
8 9 10
12 13
14 15 17
18 19
20 21 22 1 2 3 4 5 6
7 8
9
10 11 12 1 2
3
4 5 6 7
8
9 1011
11 12 13
1514
16 16 1 2 3 4
5 6 7 8 9 10
12 13
14
15 17 18 19
20 21 22 11
16 23 24
25 26
ECM TerminalsE9 E8
E7E10
± DIAGNOSTICSAUTOMATIC TRANSAXLE (A140E)
DI±403
638 Author: Date:
TERMINALS OF ECM
w/ Engine Immobiliser System
Symbols (Terminals No.)Wiring ColorConditionSTD Voltage (V)
IG ON9 ~ 14
S1 e E1 (E9±8 e E9±24)V e BR1st or 2nd gear9 ~ 14S1 e E1 (E9 8 e E9 24)V e BR
3rd or O/D gearBelow 1
IG ONBelow 1
S2 e E1 (E9±21 e E9±24)L±B e BR1st or 2nd gear9 ~ 14S2 e E1 (E9 21 e E9 24)LB e BR
3rd or O/D gearBelow 1
SLE1 (E9 20E9 24)PBRIG ONBelow 1SL e E1 (E9±20 e E9±24)P e BRVehicle driving under lock±up position9 ~ 14
OD1 e E1 (E7±18 e E9±24)Y±B e BRIG ON9 ~ 14
OD2E1 (E7 5E9 24)GOBRO/D main switch ON9 ~ 14OD2 e E1 (E7±5 e E9±24)G±O e BRO/D main switch OFFBelow 1
LE1 (E7 15E9 24)YBRIG ON and Shift lever L position9 ~ 14L e E1 (E7±15 e E9±24)Y e BRIG ON and Shift lever other than L positionBelow 1
2E1 (E7 16E9 24)*1L±W e BRIG ON and Shift lever 2 position9 ~ 142 e E1 (E7±16 e E9±24)LW e BR
*2O e BRIG ON and Shift lever other than 2 positionBelow 1
RE1 (E7 17 E9 24)RBBRIG ON and Shift lever R position9 ~ 14R e E1 (E7±17 ± E9±24)R±B e BRIG ON and Shift lever other than R positionBelow 1
NSWE1 (E7 22E9 24)BWBRIG ON and Shift lever P or N position9 ~ 14NSW e E1 (E7±22 e E9±24)B±W e BRIG ON and Shift lever other than P or N positionBelow 1
*1: TMC made
*
2: TMMK made

ECM Terminals
E9 E8
E7 DI±404
± DIAGNOSTICSAUTOMATIC TRANSAXLE (A140E)
639 Author: Date:
w/o Engine Immobiliser System
Symbols (Terminals No.)Wiring ColorConditionSTD Voltage (V)
IG ON9 ~ 14
S1 e E1 (E9±7 e E9±14)
V e BR1st or 2nd gear9 ~ 14S1 e E1 (E9 7 e E9 14)

V e BR
3rd or O/D gearBelow 1
IG ONBelow 1
S2 e E1 (E9±6 e E9±14)L±B e BR1st or 2nd gear9 ~ 14S2 e E1 (E9 6 e E9 14)LB e BR
3rd or O/D gearBelow 1
SLE1 (E9 1E9 14)PBRIG ONBelow 1SL e E1 (E9±1 e E9±14)P e BRVehicle driving under lock±up position9 ~ 14
OD1 e E1 (E7±20 e E9±14)Y±B e BRIG ON9 ~ 14
OD2E1 (E7 7E9 14)GOBRO/D main switch ON9 ~ 14OD2 e E1 (E7±7 e E9±14)G±O e BRO/D main switch OFFBelow 1
LE1 (E7 19E9 14)YBRIG ON and Shift lever L position9 ~ 14L e E1 (E7±19 e E9±14)Y e BRIG ON and Shift lever other than L positionBelow 1
2E1 (E7 18E9 14)*1L±W e BRIG ON and Shift lever 2 position9 ~ 142 e E1 (E7±18 e E9±14)LW e BR
*2O e BRIG ON and Shift lever other than 2 positionBelow 1
RE1 (E7 17 E9 14)RBBRIG ON and Shift lever R position9 ~ 14R e E1 (E7±17 ± E9±14)R±B e BRIG ON and Shift lever other than R positionBelow 1
NSWE1 (E7 22E9 14)BWBRIG ON and Shift lever P or N position9 ~ 14NSW e E1 (E7±22 e E9±14)B±W e BRIG ON and Shift lever other than P or N positionBelow 1
*1: TMC made
*
2: TMMK made

DI030±02
± DIAGNOSTICSAUTOMATIC TRANSAXLE (A140E)
DI±405
640 Author: Date:
PROBLEM SYMPTOMS TABLE
If a normal code is displayed during the DTC 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 trouble-
shooting.
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
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.
If the trouble still occurs even though there are no abnormalities in any of the other circuits, then
check and replace the ECM.
1. Chapter 1: Electronic Circuit Matrix Chart
SymptomSuspect AreaSee page
No up±shift
(A particular gear, from 1st to 3rd gear, is not up±shifted)1. ECMIN±31
No up±shift (3rd " O/D)
1. O/D main switch & O/D OFF indicator light circuit
2. O/D cancel signal circuit
3. ECMDI±431
DI±428
IN±31
No down±shift (O/D " 3rd)1. ECMIN±31
No down±shift
(A particular gear, from 3rd to 1st gear, is not down±shifted)1. ECMIN±31
No lock±up or No lock±up off1. Stop light switch circuit
2. ECMDI±423
IN±31
Shift point too high or too low1. ECMIN±31
Up±shift to O/D from 3rd while O/D main switch is OFF1. O/D main switch & O/D OFF indicator light circuit
2. ECMDI±431
IN±31
Up±shift to O/D from 3rd while engine is cold1. ECMIN±31
Poor acceleration1. ECMIN±31
No kick±down1. ECMIN±31
Engine stalls when starting off or stopping1. ECMIN±31

DI±406
± DIAGNOSTICSAUTOMATIC TRANSAXLE (A140E)
641 Author: Date:
2. Chapter 2: On±Vehicle Repair
(
: A140E AUTOMATIC TRANSAXLE Repair Manual Pub. No. RM385U)
SymptomSuspect AreaSee page
Vehicle does not move in any forward positions and reverse posi-
tion
1. Manual valve
2. Throttle valve
3. Primary regulator valve
4. Off±vehicle repair matrix chart





±
Vehicle does not move in R position1. Off±vehicle repair matrix chart±
No up±shift (1st " 2nd)1. 1±2 shift valve
2. Off±vehicle repair matrix chart

±
No up±shift (2nd " 3rd)1. 2±3 shift valve
2. Off±vehicle repair matrix chart

±
No up±shift (3rd " O/D)1. 3±4 shift valve
2. Off±vehicle repair matrix chart

±
No down±shift (O/D " 3rd)1. 3±4 shift valve

No down±shift (3rd " 2nd)1. 2±3 shift valve

No down±shift (2nd " 1st)1. 1±2 shift valve

No lock±up or No lock±up off1. Lock±up relay valve
2. Off±vehicle repair matrix chart

±
Harsh engagement (N " D)1. C1 accumulator
2. Off±vehicle repair matrix chart

±
Harsh engagement (N " R)1. C2 accumulator
2. Off±vehicle repair matrix chart

±
Harsh engagement (N " L)1. Low coast modulator valve

Harsh engagement (Lock±up)1. Lock±up relay valve
2. Off±vehicle repair matrix chart

±
Harsh engagement (1st " 2nd " 3rd " O/D)
1. Throttle modulator valve
2. Cut back valve
3. Throttle valve





Harsh engagement (2nd " 3rd)1. C2 accumulator

Harsh engagement (3rd " O/D)1. B0 accumulator

Harsh engagement (O/D " 3rd)1. C0 accumulator
2. B
0 accumulator




Slip or shudder (Forward and reverse)
1. Throttle valve
2. Oil strainer
3. Off±vehicle repair matrix chart



±
No engine braking (1st: L position)1. Low coast modulator valve
2. Off±vehicle repair matrix chart

±
No engine braking (2nd: 2 position)1. 2nd coast modulator valve
2. Off±vehicle repair matrix chart

±
No kick±down
1. 1±2 shift valve
2. 2±3 shift valve
3. 3±4 shift valve

± DIAGNOSTICSAUTOMATIC TRANSAXLE (A140E)
DI±407
642 Author: Date:
3. Chapter 3: Off±Vehicle Repair
(
: A140E AUTOMATIC TRANSAXLE Repair Manual Pub. No. RM385U)
SymptomSuspect AreaSee page
Vehicle does not move in any forward positions and reverse posi-
tion
1. Front and rear planetary gear
2. O/D planetary gear
3. O/D one±way clutch (F
0)
4. O/D direct clutch (C
0)
5. O/D brake (B
0)
6. Forward clutch (C
1)












Vehicle does not move in R position
1. Front and rear planetary gear unit
2. Direct clutch (C
2)
3. O/D direct clutch (C
0)
4. 1st & reverse brake (B
3)








No up±shift (1st " 2nd)1. No. 1 one±way clutch (F1)
2. 2nd brake (B
2)




No up±shift (2nd " 3rd)1. Direct clutch (C2)

No up±shift (3rd " O/D)1. O/D brake (B0)

No lock±up or No lock±up off1. Torque converter clutchAX±26
Harsh engagement (N " D)
1. Forward clutch (C1)
2. O/D one±way clutch (F
0)
3. No. 2 one±way clutch (F
2)






Harsh engagement (N " R)1. Direct clutch (C2)
2. 1st & reverse brake (B
3)




Harsh engagement (Lock±up)1. Torque converter clutchAX±26
Slip or shudder (Forward position: After warm±up)
1. Torque converter clutch
2. O/D direct clutch (C
0)
3. Forward clutch (C
1)
4. O/D one±way clutch (F
0)
AX±26






Slip or shudder (R position)
1. Direct clutch (C2)
2. 1st & reverse brake (B
3)
3. O/D direct clutch (C
0)






Slip or shudder (1st)1. No. 2 one±way clutch (F2)

Slip or shudder (2nd)1. No. 1 one±way clutch (F1)
2. 2nd brake (B
2)




Slip or shudder (3rd)1. Direct clutch (C2)

Slip or shudder (O/D)1. O/D brake (B0)

No engine braking (1st ~ 3rd: D position)1. 2nd brake (B2)

No engine braking (1st: L position)1. 1st & reverse brake (B3)

No engine braking (2nd: 2 position)1. 2nd coast brake (B1)

Poor acceleration (All positions)1. Torque converter clutch
2. O/D planetary gearAX±26


Poor acceleration (O/D)1. O/D direct clutch (C0)
2. O/D planetary gear



Large shift shock or engine stalls when starting off or stopping1. Torque converter clutchAX±26

DI1J0±01
A00414
Vehicle Speed Sensor4±Pulse 4±Pulse
Combination Meter
ECM
Transaxle
Vehicle Speed Sensor
DI±408
± DIAGNOSTICSAUTOMATIC TRANSAXLE (A140E)
643 Author: Date:
CIRCUIT INSPECTION
DTC P0500 Vehicle Speed Sensor Malfunction
CIRCUIT DESCRIPTION
The vehicle speed sensor outputs a 4±pulse signal for every revolution of the rotor shaft, which is rotated
by the transmission output shaft via the driven gear. After this signal is converted into a more precise rectan-
gular wave form by the wave form shaping circuit inside the combination meter, it is then transmitted to the
ECM. The ECM determines the vehicle speed based on the frequency of these pluse signals.
DTC No.DTC Detecting ConditionTrouble Area
P0500
During vehicle is being driven, no vehicle speed sensor signal
to ECM
(2 trip detection logic)
Combination meter

Open or short in vehicle speed sensor circuit

Vehicle speed sensor
ECM Clutch or brake slips or gear is broken
ECM

Automatic transaxle (clutch, brake or gear etc.)
WIRING DIAGRAM
See page DI±145.