A81512
G and NE Signal Waveforms5 V/
Division
G 20 msec./Division (Idling)
NE
A64984
Camshaft Position Sensor
05±620
±
DIAGNOSTICS ECD SYSTEM(1CD±FTV)
AVENSIS REPAIR MANUAL (RM1018E)
DTCP0340CAMSHAFT POSITION SENSOR ºAº CIRCUIT (BANK 1 OR SINGLE SENSOR)
CIRCUIT DESCRIPTION
Camshaft position sensor (G signal) consists of a magnet, iron core and pickup\
coil.
The G signal plate has one tooth on its outer circumference and is installe\
d on the camshaft timing pulley.
When the camshafts rotate, the protrusion on the signal plate and the air ga\
p on the pickup coil change,
causing fluctuations in the magnetic field and generating an electromoti\
ve force in the pickup coil.
The NE signal plate has 34 teeth and is mounted on the crankshaft timing pu\
lley. The NE signal sensor gen-
erates 34 signals at every engine revolution. The ECM detects the standard crankshaft angl\
e based on the
G signal and the actual crankshaft angle and the engine speed by the NE s\
ignal.
DTC No.DTC Detection ConditionTrouble Area
P0340
No camshaft position sensor signal to ECM during cranking
(2 trip detection logic)Open or short in camshaft position sensor circuit
Camshaft position sensor
P0340(g)
No camshaft position sensor signal to ECM with engine
speed 650 rpm or more (1 trip detection logic)Camshaft timing pulley
ECM
Reference: Inspection using the oscilloscope.
The correct waveform is as shown in the diagram on the left.
Symbols (Terminal No.)Specified condition
G1 (E12±23) ± G± (E12±31)Correct waveform is as shown
WIRING DIAGRAM
Refer to DTC P0335 on page 05±616.
INSPECTION PROCEDURE
HINT:
Read freeze frame data using \b
. Freeze frame data records the engine conditions when
a malfunction is detected. When troubleshooting, it is useful for determi\
ning whether the vehicle was running
or stopped, the engine was warmed up or not, etc. at the time of the malfu\
nction.
1INSPECT CAMSHAFT POSITION SENSOR
(a)Measure the resistance between terminals 1 and 2. Resistance:
1,630 to 2,740 at cold
2,065 to 3,225 at hot
NOTICE:
ºColdº and ºHotº shown above mean the temperature of
the coils themselves. ºColdº is from ±10 C (14 F) to 50 C
(122 F) and ºHotº is from 50 C (122 F) to 100 C (212 F).
NGREPLACE CAMSHAFT POSITION SENSOR (See page 10±63)
OK
05B5J±03
A78431
Crankshaft Position Sensor
A76790
Wire Harness SideCrankshaft Position Sensor Connector C6
A80459ECM Connector
NE+
NE± E13
05±618
±
DIAGNOSTICS ECD SYSTEM(1CD±FTV)
AVENSIS REPAIR MANUAL (RM1018E)
1INSPECT CRANKSHAFT POSITION SENSOR(RESISTANCE)
(a)Measure the resistance between terminals 1 and 2. Resistance:
1,630 to 2,740 at cold
2,065 to 3,225 at hot
NOTICE:
ºColdº and ºHotº shown above mean the temperature of
the coils themselves. ºColdº is from ±10 C (14 F) to 50 C
(122 F) and ºHotº is from 50 C (122 F) to 100 C (212 F).
NGREPLACE CRANKSHAFT POSITION SENSOR (See page 10±64)
OK
2 CHECK HARNESS AND CONNECTOR(CRANKSHAFT POSITION SENSOR ± ECM)
(a) Disconnect the C6 crankshaft position sensor connector.
(b) Disconnect the E13 ECM connector.
(c) Check for continuity between the wire harness side con- nectors.
Standard (Check for open):
Symbols (Terminal No.)Specified condition
Crankshaft position sensor (C6±1) ± NE+ (E13±27)ContinuityCrankshaft position sensor (C6±2) ± NE± (E13±34)Continuity
Standard (Check for short):
Symbols (Terminal No.)Specified condition
Crankshaft position sensor (C6±1) or NE+ (E13±27)
± Body ground
No continuityCrankshaft position sensor (C6±2) or NE± (E13±34) ± Body groundNo continuity
NG REPAIR OR REPLACE HARNESS ORCONNECTOR
OK
3 CHECK SENSOR INSTALLATION(CRANKSHAFT POSITION SENSOR)
NG TIGHTEN SENSOR
OK
D25472
SST
SST
± DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E(1AZ±FE))05±873
AVENSIS REPAIR MANUAL (RM1018E)
9. HYDRAULIC TEST
(a) Measure the line pressure.
NOTICE:
Do the test at normal operation ATF temperature 50 to 80C (122 to 176F).
The line pressure test should always be carried out in pairs. One technician should observe
the conditions of wheels or wheel stopper 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 rear side of the trans-
axle case and connect SST.
SST 09992±00095 (09992± 00231, 09992±00271)
(3) Fully apply the parking brake and chock the 4
wheels.
(4) Connect the hand±held tester to DLC3.
(5) Start the engine and check idling speed.
(6) Keep your left foot pressing firmly on the brake ped-
al and shift into D range.
(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 way, do the test in R range.
Specified line pressure:
ConditionD range kPa (kgf / cm2, psi)R range kPa (kgf / cm2, psi)
Idling372 to 412 (3.8 to 4.2, 54 to 60)672 to 742 (6.9 to 7.6, 98 to 108)
Stall931 to 1,031 (9.5 to 10.5, 135 to 150)1,768 to 1,968 (18.0 to 20.1, 256 to 285)
Evaluation:
ProblemPossible cause
If the measured values at all ranges are higherLine pressure control solenoid (SLT) defective
Regulator valve detective
If the measured values at all ranges are lower
Line pressure control solenoid (SLT) defective
Regulator valve detective
Oil pump defective
If pressure is low in the D range onlyD range circuit fluid leak
Forward clutch defective
If pressure is low in the R range only
R range circuit fluid leak
Direct clutch defective
1st & reverse brake defective
D25472
SST
SST
05±928± DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E(1AZ±FSE))
AVENSIS REPAIR MANUAL (RM1018E)
9. HYDRAULIC TEST
(a) Measure the line pressure.
NOTICE:
Do the test at normal operation ATF temperature 50 to 80C (122 to 176F).
The line pressure test should always be carried out in pairs. One technician should observe
the conditions of wheels or wheel stopper 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 rear side of the trans-
axle case and connect SST.
SST 09992±00095 (09992± 00231, 09992±00271)
(3) Fully apply the parking brake and chock the 4
wheels.
(4) Connect the hand±held tester to DLC3.
(5) Start the engine and check idling speed.
(6) Keep your left foot pressing firmly on the brake ped-
al and shift into D range.
(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 way, do the test in R range.
Specified line pressure:
ConditionD range kPa (kgf / cm2, psi)R range kPa (kgf / cm2, psi)
Idling372 to 412 (3.8 to 4.2, 54 to 60)672 to 742 (6.9 to 7.6, 98 to 108)
Stall931 to 1,031 (9.5 to 10.5, 135 to 150)1,768 to 1,968 (18.0 to 20.1, 256 to 285)
Evaluation:
ProblemPossible cause
If the measured values at all ranges are higherShift solenoid valve SLT defective
Regulator valve detective
If the measured values at all ranges are lower
Shift solenoid valve SLT defective
Regulator valve detective
Oil pump defective
If pressure is low in the D range onlyD range circuit fluid leak
Forward clutch defective
If pressure is low in the R range only
R range circuit fluid leak
Direct clutch defective
1st and reverse brake defective
100G7±02
321 4 5
±20
020 40 60
80100 0.1 0.2 0.3 0.51 235 1020 30
TEMPERATUREC(F)
RESISTANCE k
(±4) (32) (80) (140)(104) (212)(176)
Air
E2
THAVG
E2G+B
A50378
12
Valve
A50377
B09641
10±20
± ENGINE CONTROL SYSTEMSFI SYSTEM (1AZ±FE)
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION
1. INSPECT MASS AIR FLOW METER
(a) Output voltage inspection.
(1) Apply battery voltage across terminals 1 (+B) and 2
(E2G).
(2) Using a voltmeter, connect the positive (+) tester
probe to terminal 3 (VG), and negative (±) tester
probe to terminal 2 (E2G).
(3) Blow air into the MAF meter, and check that the volt-
age fluctuates.
(b) Resistance inspection.
(1) Using an ohmmeter, measure the resistance be-
tween terminals 4 (THA) and 5 (E2).
Resistance:
TerminalsResistanceTemperature
THA ± E213.6 to 18.4 k±20 C (±4 F)
THA ± E22.21 to 2.69 k20 C (68 F)
THA ± E20.49 to 0.67 k60 C (140 F)
2. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE
ASSY
(a) Resistance inspection.
(1) Using an ohmmeter, measure the resistance be-
tween the terminals.
Resistance: 6.9 to 7.9 at 20 C (68 F)
(b) Movement inspection.
(1) Connect the positive (+) lead from the battery to ter-
minal 1 and negative (±) lead to terminal 2, and
check the movement of the valve.
NOTICE:
Confirm the valve does not adhere.
HINT:
Bad returning of the valve by entrance of foreign objects causes
subtle pressure leak to the advanced direction. Then, DTC can
be detected.
3. INSPECT THROTTLE BODY ASSY
(a) Check throttle body.
(1) Check that throttle valve shaft is not rickety.
(2) Check that each port is not stopped up.
(3) Check that throttle valve opens and closes smooth-
ly.
(4) Check that there is no clearance between the
throttle stop screw and throttle lever when the
closed throttle position.
100EY±02
A60548
Air
E2
THAVG
E2G+B
30
20
10
5
3
2
1
0.5
0.3
0.2
0.1
RESISTANCE k
±20 0 20 40 60 80 10054321
(±4)(32)(68)(104)(140)(176)(212)
TEMPERATUREC(F)
A60549
12
Valve
± ENGINE CONTROL SYSTEMSFI SYSTEM (1ZZ±FE/3ZZ±FE)
10±3
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION
1. INSPECT MASS AIR FLOW METER
(a) Output voltage inspection.
(1) Apply battery voltage across terminals 1 (+B) and 2
(E2G).
(2) Connect the positive (+) tester probe to terminal 3
(VG), and negative (±) tester probe to terminal 2
(E2G).
(3) Blow air into the MAF meter, and check that the volt-
age output fluctuates.
(b) Resistance inspection.
(1) Using an ohmmeter, measure the resistance be-
tween terminals 4 (THA) and 5 (E2).
Resistance:
TerminalsResistanceTemperature
THA ± E213.6 to 18.4 k±20 C (±4 F)
THA ± E22.21 to 2.69 k20 C (68 F)
THA ± E20.49 to 0.67 k60 C (140 F)
2. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE
ASSY
(a) Resistance inspection.
(1) Using an ohmmeter, measure the resistance be-
tween terminals.
Resistance: 6.9 to 7.9 at 20C (68F)
(b) Movement inspection.
(1) Connect the positive (+) lead from the battery to ter-
minal 1 and negative (±) lead to terminal 2, and
check the movement of the valve.
NOTICE:
Confirm the valve does not adhere.
HINT:
Bad returning of the valve by catching of foreign objects causes
subtle pressure leak to the advanced direction. DTC can be de-
tected.
100G9±02
321 4 5
±20
020 40 60
80100 0.1 0.2 0.3 0.51 235 1020 30
TEMPERATUREC(F)
RESISTANCE k
(±4) (32) (80) (140)(104) (212)(176)
Air
E2
THAVG
E2G+B
A50378
12
Valve
A50377
A59778
M± M+
± ENGINE CONTROL SYSTEMSFI SYSTEM (1AZ±FSE)
10±39
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION
1. INSPECT MASS AIR FLOW METER
(a) Output voltage inspection.
(1) Apply battery voltage across terminals 1 (+B) and 2
(E2G).
(2) Using a voltmeter, connect the positive (+) tester
probe to terminal 3 (VG), and negative (±) tester
probe to terminal 2 (E2G).
(3) Blow air into the MAF meter, and check that the volt-
age fluctuates.
(b) Resistance inspection.
(1) Using an ohmmeter, measure the resistance be-
tween terminals 4 (THA) and 5 (E2).
Resistance:
TerminalsResistanceTemperature
THA ± E213.6 to 18.4 k±20 C (±4 F)
THA ± E22.21 to 2.69 k20 C (68 F)
THA ± E20.49 to 0.67 k60 C (140 F)
2. INSPECT CAMSHAFT TIMING OIL CONTROL VALVE
ASSY
(a) Resistance inspection.
(1) Using an ohmmeter, measure the resistance be-
tween the terminals.
Resistance: 6.9 to 7.9 at 20 C (68 F)
(b) Movement inspection.
(1) Connect the positive (+) lead from the battery to ter-
minal 1 and negative (±) lead to terminal 2, and
check the movement of the valve.
NOTICE:
Confirm the valve does not adhere.
HINT:
Bad returning of the valve by entrance of foreign objects causes
subtle pressure leak to the advanced direction. Then, DTC can
be detected.
3. INSPECT THROTTLE BODY ASSY
(a) Using an ohmmeter, measure the resistance between the
terminals.
Resistance:
Terminal No.Resistance
2 (M+) ± 1 (M±)0.3 to 100 at 20 C (68 F)
A53763
E2PSW
10±38
±
ENGINE CONTROL SYSTEM SFI SYSTEM(1AZ±FSE)
AVENSIS REPAIR MANUAL (RM1018E)
2.INSPECT POWER STEERING OIL PRESSURE SEN- SOR
(a)Using a voltmeter, measure the voltage between termi-
nals PSW and E2.
Voltage:
ConditionVoltage (V)
Not spin the steering wheel at engine idling9 to 14
Spin the steering wheel at engine idling0 to 3
3.INSPECT THROTTLE BODY
(a)Inspect the throttle control motor for operating sound.(1)Turn the ignition switch ON.
(2)When turning the accelerator pedal position sensor lever, check the running sound of the motor.Also, check that there is no friction sound.
If operation is not as specified, check the throttle control motor (See page 10±39), wiring and ECM.
(b) Inspect the throttle position sensor.
(1) Connect the hand±held tester to the DLC3.
(2) Turn the ignition switch ON.
(3) When turning the accelerator pedal position sensor lever to the full±\
open position, check thatthe throttle valve opening percentage (THROTTLE POS) of the CURRENT DATA shown the
standard value.
Standard throttle valve opening percentage:
60 % or more
If operation is not as specified, check that the accelerator pedal positio\
n sensor (See page 10±39), wiring
and ECM.
If you have no hand±held tester, measure voltage between terminals (VTA1 ± E2, VTA2 ± E2) of the ECM
connector (See page 05±318).
(c) Inspect the air assist system.
(1) Start the engine and check that the CHK ENG does not light up.
(2) Allow the engine to warm up to normal operating temperature.
(3) Turn the A/C compressor ON to OFF, and check the idle speed.
Idle speed (Transmission in neutral): 700 50 rpm
NOTICE:
Perform inspection under condition without electrical load.
(d) After checking the above (b) to (d), perform the driving test and check that there is no sense of incon-
gruity.
4. INSPECT ACCELERATOR PEDAL POSITION SENSOR
(a) Connect the hand±held tester to the DLC3.
(b) Turn the ignition switch ON.
(c) Check that the voltage (ACCEL POS) of the CURRENT DATA shown the standard value.
Accelerator pedal released: 0.5 to 1.1 V
Accelerator pedal depress: 2.6 to 4.5 V
(d) Check that the voltage (ACCEL POS #2) of the CURRENT DATA shown the standard value. Accelerator pedal released: 1.2 to 2.0 V
Accelerator pedal depress: 3.4 to 5.3 V
If you have no hand±held tester, measure voltage between terminals (VPA ± EPA, VPA2 ± EPA2) of the ECM
connector (See page 05±318).