oil change TOYOTA CAMRY 1999 Service User Guide

DI±290
± DIAGNOSTICSENGINE (1MZ±FE)
525 Author: Date:
DTC P0340 Camshaft Position Sensor Circuit
Malfunction
CIRCUIT DESCRIPTION
Camshaft position sensor (G22 signal) consist of a signal plate and pickup coil.
The G22 signal plate has one tooth, on its outer circumference and is mounted on the left bank camshafts.
When the camshafts rotate, the protrusion on the signal plate and the air gap on the pickup coil change,
causing fluctuations in the magnetic field and generating an electromotive force in the pickup coil.
The NE signal plate has 34 teeth and is mounted on the crankshaft. The NE signal sensor generates 34
signals for every engine revolution. The ECM detects the standard crankshaft angle based on the G22 signal
and the actual crankshaft angle and the engine speed by the NE signals.
DTC No.DTC Detecting 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
P0340No camshaft position sensor signal to ECM with engine speed
600 rpm or more

Camshaft osition sensor

Starter

ECM
WIRING DIAGRAM
Refer to DTC P0335 (Crankshaft Position Sensor ºAº Circuit Malfunction) on page DI±287 .
INSPECTION PROCEDURE
HINT:
Read freeze frame data using TOYOTA hand±held tester or OBD II scan tool. Because freeze frame records
the engine conditions when the malfunction is detected, when troubleshooting it is useful for determining
whether the vehicle was running or stopped, the engine warmed up or not, the air±fuel ratio lean or rich, etc.
at the time of the malfunction.
1 Check resistance of camshaft position sensor (See page IG±1).
Reference INSPECTION USING OSCILLOSCOPE
Refer to DTC P0335 on page DI±287.
NG Replace camshaft position sensor.
OK
DI07V±06

BR3583
BR3582F00010
RotorSpeed Sensor
Magnet
To ECU
+V
±VHigh Speed
Low Speed
CoilNS
DI±514
± DIAGNOSTICSANTI±LOCK BRAKE SYSTEM (DENSO Made)
749 Author: Date:
DTC31, 32, 33, 34Speed Sensor Circuit
CIRCUIT DESCRIPTION
The speed sensor detects wheel speed and sends the ap-
propriate signals to the ECU. These signals are used to control
the ABS system. The front and rear rotors each have 48 serra-
tions.
When the rotors rotate, the magnetic field emitted by the perma-
nent magnet in the speed sensor generates an AC voltage.
Since the frequency of this AC voltage changes in direct propor-
tion to the speed of the rotor, the frequency is used by the ECU
to detect the speed of each wheel.

DTC No.DTC Detecting ConditionTrouble Area
31, 32, 33, 34
Detection of any of conditions from 1. through 4.:
1. Vehicle speed is at 10 km/h (6 mph) or more and the
speed sensor signal circuit is open or short circuit con-
tinues for 15 sec. or more.
2. Momentary interruption of the speed sensor signal oc-
curs 7 times or more.
3. Vehicle speed is at 20 km/h (12mph) or more and inter-
ference on the speed sensor signal continues for 5 sec.
or more.
4. Open circuit condition of the speed sensor signal circuit
continues for 0.5 sec. or more.

Right front, left front, right rear, left rear speed sensor

Each speed sensor circuit

Speed sensor rotor
HINT:

DTC No. 31 is for the right front speed sensor.

DTC No. 32 is for the left front speed sensor.

DTC No. 33 is for the right rear speed sensor.

DTC No. 34 is for the left rear speed sensor.
Fail safe function:
If trouble occurs in the speed sensor circuit, the ECU cuts off current to the ABS solenoid relay and prohibits
ABS control.
DI1JM±02

BR3583
BR3582F00010
RotorSpeed Sensor
Magnet
To ECU
+V
±VHigh Speed
Low Speed
CoilNS
DI±552
± DIAGNOSTICSANTI±LOCK BRAKE SYSTEM (BOSCH Made)
787 Author: Date:
DTC31, 32, 33, 34, 35, 36, 38, 39Speed Sensor Circuit
CIRCUIT DESCRIPTION
The speed sensor detects wheel speed and sends the ap-
propriate signals to the ECU. These signals are used to control
the ABS system. The front and rear rotors each have 48 serra-
tions.
When the rotors rotate, the magnetic field emitted by the perma-
nent magnet in the speed sensor generates an AC voltage.
Since the frequency of this AC voltage changes in direct propor-
tion to the speed of the rotor, the frequency is used by the ECU
to detect the speed of each wheel.

DTC No.DTC Detecting ConditionTrouble Area
31, 32, 33, 34
Detection of any of conditions from 1. through 3.:
1. Vehicle speed is more than 40 km/h (25 mph), pulses
are not input for 0.01 sec.
2. After the initial start or restart and when the vehicle
speed has reached 12 km/h (7 mph), the wheel with 0
km/h (0 mph) of wheel speed is detected.
3. After the initial start or restart and when the vehicle
speed has reached 70 km/h (44 mph), front wheel with 0
km/h (0 mph) of wheel speed is detected.

Right front, left front, right rear, left rear speed sensor

Each speed sensor circuit

Sensor installation

ECU
35, 36, 38, 39Detecting abnormality in the resistance value of each speed
sensor.
Right front, left front, right rear, left rear speed sensor

Each speed sensor circuit

ECU
HINT:

DTC No. 31 and 35 are for the right front speed sensor.

DTC No. 32 and 36 are for the left front speed sensor.

DTC No. 33 and 38 are for the right rear speed sensor.

DTC No. 34 and 39 are for the left rear speed sensor.
Fail safe function:
If trouble occurs in the speed sensor circuit, the ECU cuts off current to the ABS solenoid valve relay and
prohibits ABS control.
DI043±04

BR3583
BR3582F00010
RotorSpeed Sensor
Magnet
To ECU
+V
±VHigh Speed
Low Speed
CoilNS
± DIAGNOSTICSABS & TRACTION CONTROL SYSTEM
DI±593
828 Author: Date:
DTC31, 32, 33, 34Speed Sensor Circuit
CIRCUIT DESCRIPTION
The speed sensor detects wheel speed and sends the ap-
propriate signals to the ECU. These signals are used to control
the ABS and TRAC system. The front and rear rotors each have
48 serrations.
When the rotors rotate, the magnetic field emitted by the perma-
nent magnet in the speed sensor generates an AC voltage.
Since the frequency of this AC voltage changes in direct propor-
tion to the speed of the rotor, the frequency is used by the ECU
to detect the speed of each wheel.

DTC No.DTC Detecting ConditionTrouble Area
31, 32, 33, 34
Detection of any of conditions from 1. through 3.:
1. ABS is in non±operation, wheel speed is 10 km/h or
more, one eighth of maximum wheel speed is greater
than the minimum wheel speed, one eighth of maximum
wheel speed is smaller than the rear maximum wheel
speed or momentary interruption of both the rear wheels
are shown in the 15 sec. or more continuously.
2. ABS is in non±operation, momentary interruption of
speed sensor occurs 7 times or more in the mean time
of switching the ignition switch ON and OFF or vehicle
speed is 20 km/h (12 mph) or more and the condition of
noise interference or non±noise interference occurs 75
times or more within 5 sec.
3. Vehicle is at a stop, malfunction signal of vehicle speed
sensor hardware open circuit is ON for 1.02 sec. contin-
uously since starting the checking of a certain vehicle.

Right front, left front, right rear, left rear speed sensor

Each speed sensor circuit

Speed sensor rotor

ECU
HINT:

DTC No. 31 is for the right front speed sensor.

DTC No. 32 is for the left front speed sensor.

DTC No. 33 is for the right rear speed sensor.

DTC No. 34 is for the left rear speed sensor.
Fail safe function:
If any trouble occurs in the speed sensor circuit, the ECU cuts off current to the ABS & TRAC solenoid relay
and prohibits ABS control and TRAC control.
DI1JP±03

DI1KH±03
DI±924
± DIAGNOSTICSENGINE IMMOBILISER SYSTEM
1159 Author: Date:
DIAGNOSTIC TROUBLE CODE CHART
DTC No.
(See page)Detection ItemTrouble Area
B2795
(DI±928)Unmatched key code
Key

Unregistered key inserted before
B2796
(DI±929)No communication in immobiliser system

Key

Transponder key coil

Amplifier

Wirehaness

ECM
B2797
(DI±932)Communication malfunction No.1
Communication contests

Unregistered key inserted before
B2798
(DI±935)Communication malfunction No.2

Key

Transponder key coil

Amplifier

Wirehaness

ECM
HINT:
To reduce the unnecessary exchange of ECM, check that a trouble occurs with the original ECM at the time
of exchanging ECM and the trouble will disappear with a new ECM.

± DIAGNOSTICSENGINE
DI±61
DTC P0340 Camshaft Position Sensor Circuit Malfunc-
tion
CIRCUIT DESCRIPTION
Camshaft position sensor (G signal) consists of magnet, iron core and pickup coil.
The G signal plate has one tooth on its outer circumference and is installed on the camshaft timing pulley.
When the camshafts rotate, the protrusion on the signal plate and the air gap on the pickup coil change,
causing fluctuations in the magnetic field and generating an electromotive force in the pickup coil.
The NE signal plate has 34 teeth and is installed on the crankshaft timing pulley. The NE signal sensor gener-
ates 34 signals at every engine revolution. The ECM detects the standard crankshaft angle based on the
G signal and the actual crankshaft angle and the engine speed by the NE signal.
DTC No.DTC Detecting 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
P0340No camshaft position sensor signal to ECM with engine speed
600 rpm or more

Camshaft osition sensor

Camshaft timing pulley

ECM
WIRING DIAGRAM
Refer to DTC P0335 on page DI±59.
INSPECTION PROCEDURE
HINT:
Read freeze frame data using TOYOTA hand±held tester or OBD II scan tool. Because freeze frame records
the engine conditions when the malfunction is detected. When troubleshooting it is useful for determining
whether the vehicle was running or stopped, the engine was warmed up or not, the air±fuel ratio was lean
or rich, etc. at the time of the malfunction.
1 Check resistance of camshaft position sensor (See Pub. No. RM654U, page
IG±1).
Reference: INSPECTION USING OSCILLOSCOPE
Refer to DTC P0335 on page DI±59.
NG Replace camshaft position sensor.
OK
2 Check for open and short in harness and connector between ECM and camshaft
position sensor (See page IN±29).
NG Repair or replace harness or connector.
DI014±11

BR3583
BR3582F00010
RotorSpeed Sensor
Magnet
To ECU
+V
±VHigh Speed
Low Speed
CoilNS
DI±198
± DIAGNOSTICSANTI±LOCK BRAKE SYSTEM
DTC31, 32, 33, 34Speed Sensor Circuit
CIRCUIT DESCRIPTION
The speed sensor detects wheel speed and sends the ap-
propriate signals to the ECU. These signals are used to control
the ABS system. The front and rear rotors each have 48 serra-
tions.
When the rotors rotate, the magnetic field emitted by the perma-
nent magnet in the speed sensor generates an AC voltage.
Since the frequency of this AC voltage changes in direct propor-
tion to the speed of the rotor, the frequency is used by the ECU
to detect the speed of each wheel.

DTC No.DTC Detecting ConditionTrouble Area
31, 32, 33, 34
Detection of any of conditions from 1. through 4.:
1. Vehicle speed is at 10 km/h (6 mph) or more and the
speed sensor signal circuit is open or short circuit con-
tinues for 15 sec. or more.
2. Momentary interruption of the speed sensor signal oc-
curs 7 times or more.
3. Vehicle speed is at 20 km/h (12mph) or more and inter-
ference on the speed sensor signal continues for 5 sec.
or more.
4. Open circuit condition of the speed sensor signal circuit
continues for 0.5 sec. or more.

Right front, left front, right rear, left rear speed sensor

Each speed sensor circuit

Speed sensor rotor
HINT:

DTC No. 31 is for the right front speed sensor.

DTC No. 32 is for the left front speed sensor.

DTC No. 33 is for the right rear speed sensor.

DTC No. 34 is for the left rear speed sensor.
Fail safe function:
If trouble occurs in the speed sensor circuit, the ECU cuts off current to the ABS solenoid relay and prohibits
ABS control.
DI1JM±03

Z19415
No.1 Balance
Shaft
Mark B
Mark A
No.2 Housing
Z19408
2
46 153
Z19409
1
35 Pull
264
± ENGINE MECHANICAL (5S±FE)BALANCE SHAFT BACKLASH
EM±13
1185 Author: Date:
(p) Turn the crankshaft clockwise again to align the groove
of the No.2 housing with punch mark B.
(q) Set the dial indicator. (See step (e))
(r) Measure the backlash. (See step (f))
Standard backlash (at punch mark B):
0.025 ± 0.085 mm (0.0010 ± 0.0033 in.)
(s) Remove the dial indicator.
If even one of the 4 points measured above exceeds the back-
lash specification, adjust the backlash with new spacers.
NOTICE:
Use the same size spacers for both the left and right sides.
HINT:

Varying the spacer thickness by 0.02 mm (0.0008 in.)
changes the backlash by about 0.014 mm (0.0006 in.).

If the backlash is greater than the permitted maximum,
select a thinner shim.

If the backlash is less than the specification, select a thick-
er shim.
3. REPLACE NEW SPACERS
(a) Uniformly loosen the 6 bolts in the sequence shown.
(b) Replace the spacers with new ones.
4. TIGHTEN BALANCE SHAFT ASSEMBLY
While pulling the center part of the engine balancer in the direc-
tion of the arrow, uniformly tighten the 6 bolts in several passes,
in the sequence shown.
Torque: 49 N´m (500 kgf´cm, 36 ft´lbf)
5. INSPECT AND ADJUST BACKLASH OF CRANK-
SHAFT GEAR AND NO.1 BALANCE SHAFT GEAR
(See step 2)
6. REINSTALL OIL STRAINER AND OIL PAN
(See page LU±13)

B00319
Recommended Viscosity (SAE) :
TEMPERATURE RANGE ANTICIPATED BEFORE NEXT OIL CHANGE 10W ± 30
5W ± 30 PREFERRED
±20
°C °F020406080
±29 ±18 ±7 4 16 27100
38
LU03H±03
S05317
Curved
Tip
Insert
S05298
Oil Pressure Gauge
P13638
Adhesive
± LUBRICATION (5S±FE)OIL AND FILTER
LU±1
1647 Author: Date:
OIL AND FILTER
INSPECTION
1. CHECK ENGINE OIL QUALITY
Check the oil for deterioration, entry of water, discoloring or thin-
ning.
If the quality is visibly poor, replace the oil.
Oil grade:
API grade SJ, Energy±Conserving or ILSAC multi-
grade engine oil. SAE 5W±30 is the best choice for
your vehicle, for good fuel economy, and good start-
ing in cold weather.
2. CHECK ENGINE OIL LEVEL
After warming up the engine and then 5 minutes after the en-
gine stop, oil level should be between ºLº and ºFº of the dipstick.
If low, check for leakage and add oil up to ºFº mark.
NOTICE:

Do not fill with engine oil above the ºFº mark.

When inserting the oil dipstick, insert the curved tip
of the dipstick facing the same direction as the curve
of the guide.

If the dipstick gets caught while inserting it, do not
force it in. Reconfirm the direction of the dipstick.
3. REMOVE OIL PRESSURE SWITCH AND INSTALL OIL
PRESSURE GAUGE
4. WARM UP ENGINE
Allow the engine to warm up to normal operating temperature.
5. CHECK OIL PRESSURE
Oil pressure:
At idle29 kPa (0.3 kgf/cm2, 4.3 psi) or more
At 3,000 rpm245 ± 490 kPa (2.5 ± 5.0 kgf/cm2, 36 ± 71 psi)
6. REMOVE OIL PRESSURE GAUGE AND REINSTALL
OIL PRESSURE SWITCH
(a) Remove the oil pressure gauge.
(b) Apply adhesive to 2 or 3 threads of the oil pressure switch.
Adhesive:
Part No. 08833±00080, THREE BOND 1344, LOCTITE
242 or equivalent
(c) Reinstall the oil pressure switch.
7. START ENGINE AND CHECK FOR OIL LEAKS

S05320
SST
3/4
Turn
± LUBRICATION (5S±FE)OIL AND FILTER
LU±3
1649 Author: Date:
(e) Using SST, give it an additional 3/4 turn to seat the filter.
SST 09228±06501
3. FILL WITH ENGINE OIL
(a) Clean and install the oil drain plug with a new gasket.
Torque: 37 N´m (375 kgf´cm, 27 ft´lbf)
(b) Fill with new engine oil.
Capacity:
Drain and refill w/ Oil filter change
w/o Oil filter change3.6 liters (3.8 US qts, 3.2 lmp. qts)
3.4 liters (3.6 US qts, 3.0 lmp. qts)
Dry fill w/ Oil cooler
w/o Oil cooler4.3 liters (4.5 US qts, 3.8 lmp. qts)
4.2 liters (4.4 US qts, 3.7 lmp. qts)
(c) Reinstall the oil filler cap.
4. START ENGINE AND CHECK FOR OIL LEAKS
5. RECHECK ENGINE OIL LEVEL