2005 TOYOTA AVENSIS brake

05−580−
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U 151E)
AVENSIS Supplement (RM 1045E)
DTC P0724 BRAKE SWITCH ”B” CIRCUIT HIGH
CIRCUIT DESCRIPTION
The purpose of this circuit is to prevent the engine from stalling while driving in lock −up condition, when
brakes are suddenly applied.
When the brake pedal is depressed, this switch sends a signals to the ECM. Then the ECM cancels the op-
eration of the lock −up clutch while braking is in progress.
DTC No.DTC Detecting ConditionTrouble Area
P0724
The stop light switch remains ON even when the vehicle is
driven in a GO (30 km/h) and STOP (3 km/h) fashion 10 times.
(2 −trip detection logic).S Short in stop light switch signal circuit
S Stop light switch
S ECM
MONITOR DESCRIPTION
This DTC indicates that the stop light switch remains on. When the stop light switch remains ON during ”stop
and go” driving, the ECM interprets this as a fault in the stop light switch and the MIL comes on and the ECM
stores the DTC. The vehicle must stop (less than 3 km/h (2 mph)) and go (30 km/h ( 19 mph) or more) ten
times for two driving cycles in order to detect malfunction.
WIRING DIAGRAM
See page 05 −1 85.
05JLI −01

E65594
Free Pushed in2
3
4 1
G26289
STP(+)
E
13E 12E 11E10E9
ECM:
−
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U 151E)05 −58 1
AVENSIS Supplement (RM 1045E)
INSPECTION PROCEDURE
HINT:
According to the DATA LIST displayed by the hand −held tester, you can read the value of the switch, sensor,
actuator and so on without parts removal. Reading the DATA LIST as the first step of troubleshooting is one
method to shorten labor time.
(a) Turn the ignition switch off.
(b) Connect the hand −held tester to the DLC3.
(c) Turn the ignition switch to the ON position.
(d) Push the ”ON” button of the hand −held tester.
(e) Select the item ”DIAGNOSIS / OBD/MOBD / DATA LIST”.
(f) According to the display on tester, read the ”DATA LIST”.
ItemMeasurement Item/
Range (display)Normal Condition
STOP LIGHT SWStop light SW Status/ ON or OFFS Brake Pedal is depressed: ON
S Brake Pedal is released: OFF
1 INSPECT STOP LAMP SWITCH ASSY
(a) Remove the stop lamp switch assy.
(b) Measure the resistance according to the value(s) in the
table below.
Standard:
Switch positionTester ConnectionSpecified Condition
Switch pin free1−2Below 1

Switch pin pushed in10k
or higher
Switch pin free3− 410k
or higher
Switch pin pushed inBelow 1

NG REPLACE STOP LAMP SWITCH ASSY
OK
2 CHECK HARNESS AND CONNECTOR(STOP LAMP SWITCH ASSY − ECM)
(a) Install the stop lamp switch assy.
(b) Measure the voltage according to the value(s) in the table
below when the brake pedal is depressed and released.
Standard:
ConditionTester ConnectionSpecified Condition
Brake pedal is depressedE10 −1 9 (STP) −
Body ground1 0to 14V
Brake pedal is releasedBelow 1 V
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR (SEE PAGE 0 1− 32)
OK
REPLACE ECM (SEE PAGE 10− 29)

056IK−05
05 −564−
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U 151E)
AVENSIS Supplement (RM 1045E)
DIAGNOSTIC TROUBLE CODE CHART
If a DTC is displayed during the DTC check, check the parts listed in the table below and proceed to the page
given.
HINT:
S *1 : F ... MIL (Malfunction Indicator Lamp) light up
S *2 : ’’ f ’’ mark means ECM memorizes the malfunction code if the ECM detects the DTC detection
condition.
S This DTC may be output when the clutch, brake and gear components etc. inside the automatic trans-
axle are damaged.
DTC No.
(See Page)Detection ItemTrouble AreaMIL *1Memory *2
P0500
(05 −1 83)Vehicle Speed Sensor ”A”
SCombination meter
S Open or short in vehicle speed sensor circuit
S Vehicle speed sensor
S ECM
Ff
P0705
(05 −566)Transmission Range Sensor Cir-
cuit Malfunction (PRNDL Input)SOpen or short in park/neutral position switch circuit
S Park/neutral position switch
S ECM
Ff
P07 10
(05 −57 1)Transmission Fluid Temperature
Sensor ”A” CircuitS Open or short in ATF temperature sensor circuit
S Transmission wire (ATF temperature sensor)
S ECM
Ff
P07 11
(05 −574)Transmission Fluid Temperature
Sensor ”A” PerformanceSOpen or short in ATF temperature sensor circuit
S Transmission wire (ATF temperature sensor)
S ECM
Ff
P07 12
(05 −57 1)Transmission Fluid Temperature
Sensor ”A” Circuit Low InputS Short in ATF temperature sensor circuit
S Transmission wire (ATF temperature sensor)
S ECM
Ff
P07 13
(05 −57 1)Transmission Fluid Temperature
Sensor ”A” Circuit High InputS Open in ATF temperature sensor circuit
S Transmission wire (ATF temperature sensor)
S ECM
Ff
P07 17
(05 −577)Turbine Speed Sensor Circuit No
Signal
SOpen or short in transmission revolution sensor NT (speed
sensor NT) circuit
S Transmission revolution sensor NT (speed sensor NT)
S ECM
S Automatic transaxle assembly
Ff
P0724
(05 −580)Brake Switch ”B” Circuit High
SShort in stop light switch circuit
S Stop light switch
S ECM
Ff
P074 1
(05 −582)Torque Converter Clutch Sole-
noid Performance
(Shift Solenoid Valve DSL)
S Shift solenoid valve DSL remains open or closed
S Valve body is blocked
S Shift solenoid valve DSL
S Torque converter clutch
S Automatic transaxle (clutch, brake or gear etc.)
S Line pressure is too low
S ECM
Ff
P0743
(05 −586)Torque Converter Clutch Circuit
Electrical
(Shift Solenoid Valve DSL)SOpen or short in shift solenoid valve DSL circuit
S Shift solenoid valve DSL
S ECM
Ff
P0746
(05 −589)Pressure Control Solenoid ”A”
Performance
(Shift Solenoid Valve SL 1)
SShift solenoid valve SL 1remains open or closed
S Valve body is blocked
S Shift solenoid valve SL 1
S Automatic transaxle (clutch, brake or gear etc.)
S ECM
Ff

−
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U 151E)05 −565
AVENSIS Supplement (RM 1045E)
P0748
(05 −592)
Pressure Control Solenoid ”A”
Electrical
(Shift Solenoid Valve SL 1)SOpen or short in shift solenoid valve SL 1circuit
S Shift solenoid valve SL 1
S ECM
Ff
P0766
(05 −595)Shift Solenoid ”D” Performance
(Shift Solenoid Valve S4)
SShift solenoid valve S4 remains open or closed
S Valve body is blocked
S Shift solenoid valve S4
S Automatic transaxle (clutch, brake or gear etc.)
S ECM
Ff
P077 1
(05 −598)Shift Solenoid ”E” Performance
(Shift Solenoid Valve SR)
SShift solenoid valve SR remains open or closed
S Valve body is blocked
S Shift solenoid valve SR
S Automatic transaxle (clutch, brake or gear etc.)
S ECM
Ff
P0776
(05 −60 1)Pressure Control Solenoid ”B”
Performance
(Shift Solenoid Valve SL2)
S Shift solenoid valve SL2 remains open or closed
S Valve body is blocked
S Shift solenoid valve SL2
S Automatic transaxle (clutch, brake or gear etc.)
S ECM
Ff
P0778
(05 −604)Pressure Control Solenoid ”B”
Electrical
(Shift Solenoid Valve SL2)SOpen or short in shift solenoid valve SL2 circuit
S Shift solenoid valve SL2
S ECM
Ff
P0793
(05 −607)Intermediate Shaft Speed Sen-
sor ”A”
SOpen or short in transmission revolution sensor NC (speed
sensor NC) circuit
S Transmission revolution sensor NC (speed sensor NC)
S ECM
Ff
P0796
(05 −610)Pressure Control Solenoid ”C”
Performance
(Shift Solenoid Valve SL3)
SShift solenoid valve SL3 remains open or closed
S Valve body is blocked
S Shift solenoid valve SL3
S Automatic transaxle (clutch, brake or gear etc.)
S ECM
Ff
P0798
(05 −613)Pressure Control Solenoid ”C”
Electrical
(Shift Solenoid Valve SL3)SOpen or short in shift solenoid valve SL3 circuit
S Shift solenoid valve SL3
S ECM
Ff
P0982
(05 −616)Shift Solenoid ”B” Control Circuit
Low (Shift Solenoid Valve S4)SShort in shift solenoid valve S4 circuit
S Shift solenoid valve S4
S ECM
Ff
P0983
(05 −616)Shift Solenoid ”B” Control Circuit
High (Shift Solenoid Valve S4)SOpen in shift solenoid valve S4 circuit
S Shift solenoid valve S4
S ECM
Ff
P0985
(05 −619)Shift Solenoid ”E” Control Circuit
Low (Shift Solenoid Valve SR)SShort in shift solenoid valve SR circuit
S Shift solenoid valve SR
S ECM
Ff
P0986
(05 −619)Shift Solenoid ”E” Control Circuit
High (Shift Solenoid Valve SR)SOpen in shift solenoid valve SR circuit
S Shift solenoid valve SR
S ECM
Ff
P27 16
(05 −622)Pressure Control Solenoid ”D”
Electrical
(Shift Solenoid Valve SLT)SOpen or short in shift solenoid valve SLT circuit
S Shift solenoid valve SLT
S ECM
Ff

05JLF−01
05 −562−
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U 151E)
AVENSIS Supplement (RM 1045E)
DATA LIST/ACTIVE TEST
1. DATA LIST
HINT:
According to the DATA LIST displayed by the hand −held tester, you can read the value of the switch, sensor,
actuator and so on without parts removal. Reading the DATA LIST as the first step of troubleshooting is one
method to shorten labor time.
(a) Warm up the engine.
(b) Turn the ignition switch off.
(c) Connect the hand −held tester to the DLC3.
(d) Turn the ignition switch to the ON position.
(e) Push the ”ON” button of the hand −held tester.
(f) Select the item ”DIAGNOSIS / OBD/MOBD / DATA LIST”.
(g) According to the display on tester, read the ”DATA LIST”.
ItemMeasurement Item/
Range (display)Normal ConditionDiagnostic Note
STOP LIGHT SWStop light SW Status/ ON or OFFS Brake Pedal is depressed: ON
S Brake Pedal is released: OFF−
REVERSEPNP SW Status/
ON or OFFShift lever position is;
R: ON
Except R: OFF
When the shift lever position dis-
played on the hand −held tester dif-
fers from the actual position, ad-
justment of the PNP switch or the
shift cable may be incorrect.
HINT:
When the failure still occurs even
after adjusting these parts,
see page 05 −566.
DRIVEPNP SW Status/
ON or OFFShift lever position is;
D and S: ON
Except D and S: OFF


SHIFTActual Gear Position/
1 st, 2nd, 3rd, 4th or 5thShift lever position is;
SD: 1st, 2nd, 3rd, 4th or 5th
S S: 1st, 2nd, 3rd, 4th or 5th
−
LOCK UP SOLLock Up Solenoid Status/
ON or OFFSLock Up: ON
S Except Lock Up: OFF−
SOLENOID (SLT)Shift Solenoid SLT Status/
ON or OFF
SAccelerator pedal is depressed:
OFF
S Accelerator pedal is released:
ON
−
AT FLUID TEMP
ATF Temp. Sensor Value/
min.: −40 _C( −40 _F)
max.: 2 15_C(4 19_F)S After Stall Test;
Approx. 80 _C( 176 _F)
S Equal to ambient temperature
when the engine is coldIf the value is ” −40 _C( −40 _F)” or
”2 15_C(4 19_F)”, ATF temp. sen-
sor circuit is opened or shorted.
SPD (NC)Counter Gear Speed/
display: 50 r/min
[HINT]
3rd when shift lever position is D
position (After warming up the en-
gine);
SIntermediate shaft speed (NC)
becomes close to the engine
speed.
−

−
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U 151E)05 −547
AVENSIS Supplement (RM 1045E)
2. Chapter 2: On −Vehicle Repair and Off −Vehicle Repair
( L :U 151E, U 151F AUTOMATIC TRANSAXLE Repair Manual Pub. No. RM 102 1U)
( L 1: Refer to Repair Manual RM 1018E)
SymptomSuspect AreaSee page
Vehicle does not move in forward position and in reverse positions
1. Valve body assy
2. U/D brake (B
3)
3. Torque converter clutch
40 −1 9
L
L 1
Vehicle does not move in R position
1. Valve body assy
2. Reverse clutch (C
2)
3. 1st & reverse brake (B
2)
40 −1 9
L
L
No up −shift ( 1st
2nd)1. Valve body assy
2. 2nd & O/D brake (B
1)
40 −1 9
L
No up −shift (2nd
3rd)1. Valve body assy
2. Direct and O/D clutch (C
0)
40 −1 9
L
No up −shift (3rd
4th)1. Valve body assy
2. 2nd & O/D brake (B
1)
40 −1 9
L
No up −shift (4th
5th)1. Valve body assy
2. U/D clutch (C
3)
40 −1 9
L
No down −shift (5th
4th)Valve body assy40−1 9
No down −shift (4th
3rd)Valve body assy40−1 9
No down −shift (3rd
2nd)Valve body assy40−1 9
No down −shift (2nd
1st)Valve body assy40 −1 9
No lock −up or No lock −up off1. Valve body assy
2. Torque converter clutch40 −1 9
L 1
Harsh engagement (N
D)
1. Valve body assy
2. C
1accumulator
3. Forward clutch (C
1)
4. One −way clutch No. 1(F
1)
5. U/D one −way clutch (F
2)
40 −1 9
L
L
L
L
Harsh engagement (Lock −up)1. Valve body assy
2. Torque converter clutch40 −1 9
L 1
Harsh engagement (N
R)
1. Valve body assy
2. C
2accumulator
3. Reverse clutch (C
2)
4. 1st & reverse brake (B
2)
40 −1 9
L
L
L
Harsh engagement ( 1st
2nd
3rd
4th
5th)Valve body assy40−1 9
Harsh engagement ( 1st
2nd)1. Valve body assy
2. 2nd & O/D brake (B
1)
40 −1 9
L
Harsh engagement (2nd
3rd)
1. Valve body assy
2. C
0accumulator
3. Direct and O/D clutch (C
0)
40 −1 9
L
L
Harsh engagement (3rd
4th)1. Valve body assy
2. 2nd & O/D brake (B
1)
40 −1 9
L
Harsh engagement (4th
5th)
1. Valve body assy
2. C
3accumulator
3. U/D clutch (C
3)
40 −1 9
L
L
Harsh engagement (5th
4th)1. Valve body assy
2. B
3accumulator
40 −1 9
L

05−548−
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U 151E)
AVENSIS Supplement (RM 1045E)
Slip or shudder (Forward and reverse: After warm
−up)
1. Valve body assy
2. Oil strainer
3. Direct and O/D clutch (C
0)
4. Forward clutch (C
1)
5. U/D clutch (C
3)
6. 2nd & O/D brake (B
1)
7. U/D brake (B
3)
8. One −way clutch No. 1(F
1)
9. U/D one −way clutch (F
2)
1 0.Torque converter clutch
40 −1 9
40 −1 9
L
L
L
L
L
L
L
L 1
Slip or shudder (Particular position: Just after engine starts)Torque converter clutchL1
Slip or shudder (R position)1. Reverse clutch (C2)
2. 1st & reverse brake (B
2)
L
L
Slip or shudder ( 1st)
1. Forward clutch (C1)
2. One −way clutch No. 1(F
1)
3. U/D one −way clutch (F
2)
L
L
Slip or shudder (2nd)2nd & O/D brake (B1)L
Slip or shudder (3rd)Direct and O/D clutch (C0)L
Slip or shudder (4th)2nd & O/D brake (B1)L
Slip or shudder (5th)U/D clutch (C3)L
No engine braking ( 1st 4th: D position)U/D brake (B3)L
No engine braking ( 1st: L ( 1) position)1. Valve body assy
2. 1st & reverse brake (B
2)
40 −1 9
L
No engine braking (2nd: 2 position)1 . Valve body assy
2. 2nd & O/D brake (B
1)
40 −1 9
L
No engine braking (3rd: 3 position)U/D brake (B3)L
Poor acceleration (All positions)Torque converter clutchL 1
Poor acceleration (5th)1. U/D clutch (C3)
2. U/D planetary gear unitL
L
Engine stalls when starting off or stoppingTorque converter clutchL 1
No kick −downValve body assy40 −1 9

05JL9−01
− DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U151E)05−543
AVENSIS Supplement (RM1045E)
MONITOR DRIVE PATTERN
1. MONITOR DRIVE PATTERN FOR ECT TEST
(a) Perform this drive pattern as one method to simulate the detection conditions of the ECT malfunctions.
(The DTCs may not be detected due the actual driving conditions. And some codes may not be de-
tected through this drive pattern).
HINT:
Preparation for driving
SWarm up the engine sufficiently. (Engine coolant temperature is 60˚C(140˚F) or higher)
SDrive the vehicle when the atmospheric temperature is−10˚C(14˚F) or higher. (Malfunction is not
detected when the atmospheric temperature is−10˚C(14˚F) or less)
Driving note
SDrive the vehicle through all gears.
Stop
1st
2nd
3rd
4th
5th
5th (lock−up ON).
SPerform engine brake test in the S position.
While driving in the 5(S) position and 5th gear lock−up, shift into the ”−” position and down−shift from
5th to 4th, 4th to 3rd, 3rd to 2nd, 2nd to1st.
Check that the engine brake performs properly whenever down−shift takes place.
SRepeat the above driving pattern three times or more.
NOTICE:
SWhen using the hand−held tester, monitor status can be found in the ”DIAGNOSIS / OBD/MOBD
/ DATA LIST”.
SIn the event that the drive pattern must be interrupted (possibly due to traffic conditions or other
factors) the drive pattern can be resumed and, in most cases, the monitor can be completed.
CAUTION:
Perform this drive pattern on a level road as much as possible and strictly observe the posted speed
limits and traffic laws while driving.