low oil pressure TOYOTA RAV4 2006 Service User Guide

ENGINE - 2GR-FE ENGINE
238EG63
Va n e
Rotational Direction
Oil Pressure
IN DrainECM
281EG48
Va n e
Rotational DirectionECM
Oil Pressure
IN Drain EG-124
Operation
1) Advance
When the camshaft timing oil control valve is positioned as illustrated below by the advance signals from
the ECM, the resultant oil pressure is applied to the timing advance side vane chamber to rotate the
camshaft in the timing advance direction.
Intake Side
Exhaust Side

ENGINE - 2GR-FE ENGINE
238EG64
Rotational Direction
Va n e
Drain INOil PressureECM
281EG49
Rotational Direction
Va n eECM
Drain INOil Pressure
EG-125
2) Retard
When the camshaft timing oil control valve is positioned as illustrated below by the retard signals from
the ECM, the resultant oil pressure is applied to the timing retard side vane chamber to rotate the camshaft
in the timing retard direction.
Intake Side
Exhaust Side
3) Hold
After reaching the target timing, the valve timing is held by keeping the camshaft timing oil control valve
in the neutral position unless the traveling state changes.
This adjusts the valve timing at the desired target position and prevents the engine oil from running out
when it is unnecessary.

2AZ-FE EMISSION CONTROL – EMISSION CONTROL SYSTEMEC–7
EC
ON-VEHICLE INSPECTION
1. CHECK FUEL CUT RPM
(a) Increase the engine speed to at least 3,500 rpm.
(b) Use a sound scope to check for injector operating
noise.
(c) Check that the operating sounds stop momentarily
and then resume when the throttle lever is released.
HINT:
Measure with the A/C OFF.
Fuel return rpm:
1,400 rpm
2. CHECK FOR LEAKS
(a) Visually check that the hoses, connections and
gaskets have no cracks, leaks or damage.
NOTICE:
• Detachment or other problems with the
engine oil dipstick, filler cap, PCV hose and
other components may cause the engine to
run improperly.
• Disconnection, looseness or cracks in the
parts of the air induction system between the
throttle body and cylinder head will allow air
suction and cause an engine failure or engine
malfunctions.
If the result is not as specified, replace parts as
necessary.
3. CHECK LINE AND CONNECTORS
(a) Visually check for loose connections, sharp bends
or damage.
4. CHECK FUEL TANK ASSEMBLY
(a) Visually check for deformation, cracks or fuel
leakage.
5. CHECK FUEL TANK AND VENT LINE
(a) Disconnect the vent line tube from the canister.
(b) Connect a pressure gauge to the vent line tube.
A124804E01
B011449E01
A127736E01

ES–362GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
ES
VV2+ (B30-67) - VV2- (B30-90) W - B Variable valve timing
(VVT) sensor (Intake side
(bank 2))Idling Pulse generation
(see waveform 5)
EV1+ (B30-68) - EV1- (B30-91) Y - G Variable valve timing
(VVT) sensor (Exhaust
side (bank 1))Idling Pulse generation
(see waveform 5)
EV2+ (B30-66) - EV2- (B30-89) R - L Variable valve timing
(VVT) sensor (Exhaust
side (bank 2))Idling Pulse generation
(see waveform 5)
NE+ (B30-110) - NE- (B30-111) G - R Crankshaft position sensor Idling Pulse generation (see
waveform 5)
IGT1 (B30-40) - E1 (B30-81)
IGT2 (B30-39) - E1 (B30-81)
IGT3 (B30-38) - E1 (B30-81)
IGT4 (B30-37) - E1 (B30-81)
IGT5 (B30-36) - E1 (B30-81)
IGT6 (B30-35) - E1 (B30-81)W - BR
G-R - BR
G - BR
LG - BR
P - BR
V - BRIgnition coil (ignition
signal)Idling Pulse generation (see
waveform 6)
IGF1 (B30-106) - E1 (B30-81) Y - BR Ignition coil (ignition
confirmation signal)Ignition switch ON 4.5 to 5.5 V
Idling Pulse generation (see
waveform 6)
PRG (B30-108) - E1 (B30-81) LG - BR Purge VSV Ignition switch ON 9 to 14 V
Idling Pulse generation (see
waveform 7)
SPD (A9-8) - E1 (B30-81) V - BR Speed signal from
combination meterDriving at 20 km/h (12 mph) Pulse generation (see
waveform 8)
STA (A9-48) - E1 (B30-81) LG - BR Starter signal Cranking 5.5 V or more
NSW (B30-62) - E1 (B30-81) G-R - BR Starter relay control Ignition switch ON Below 1.5 V
Cranking 6.0 V or more
STP (A9-36) - E1 (B30-81) L - BR Stop light switch Brake pedal depressed 7.5 to 14 V
Brake pedal released Below 1.5 V
ST1- (A9-35) - E1 (B30-81) GR - BR Stop light switch
(opposite to STP terminal)Ignition switch ON,
Brake pedal depressedBelow 1.5 V
Ignition switch ON,
Brake pedal released7.5 to 14 V
M+ (B30-19) - ME01 (B30-20) G - BR Throttle actuator Idling with warm engine Pulse generation (see
waveform 9)
M- (B30-18) - ME01 (B30-20) R - BR Throttle actuator Idling with warm engine Pulse generation (see
waveform 10)
FC (A9-7) - E1 (B30-81) W - BR Fuel pump control Ignition switch ON 9 to 14 V
Idling Below 1.5 V
FPR (B30-59) - E1 (B30-81) W - BR Fuel pump control Cranking 9 to 14 V
FPR (B30-59) - E1 (B30-81) W - BR Fuel pump control Idling 9 to 14 V
W (A9-24) - E1 (B30-81) R - BR MIL Ignition switch ON Below 1.5 V
Idling 9 to 14 V
TC (A9-27) - E1 (B30-81) G - BR Terminal TC of DLC3 Ignition switch ON 9 to 14 V
TACH (A9-15) - E1 (B30-81) GR - BR Engine speed Idling Pulse generation (see
waveform 11)
VPMP (A9-42) - E1 (B30-81) W - BR Vent valve (built into
canister pump module)Ignition switch ON 9 to 14 V
MPMP (A9-34) - E1 (B30-81) B - BR Leak detection pump (built
into canister pump
module)Leak detection pump OFF Below 3 V
Leak detection pump ON 9 to 14 V
VCPP (B30-75) - EPPM (B30-76) V - BR Power source for canister
pressure sensor (specific
voltage)Ignition switch ON 4.5 to 5.5 V Symbol (Terminal No.) Wiring Color Terminal Description Condition Specified Condition

2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEMES–37
ES
HINT:
*: The ECM terminal voltage is constant regardless
of the output voltage from the sensor.
(b) WAVEFORM 1
Camshaft timing oil control valve (OCV)
PPMP (B30-77) - EPPM (B30-76) L - BR Canister pressure sensor
(built into canister pump
module)Ignition switch ON 3 to 3.6 V
ELS (A9-31) - E1 (B30-81) O - BR Electric load Taillight switch ON7.5 to 14 V
Taillight switch OFF Below 1.5 V
ELS2 (A9-33) - E1 (B30-81) G - BR Electric load Defogger switch ON7.5 to 14 V
Defogger switch OFF Below 1.5 V
ALT (B30-32) - E1 (B30-81) P - BR Generator Ignition switch ON 9 to 14 V
CANH (A9-41) - E1 (B30-81) Y - BR CAN communication line Ignition switch ON Pulse generation (see
waveform 12)
CANL (A9-49) - E1 (B30-81) W - BR CAN communication line Ignition switch ON Pulse generation (see
waveform 13)
VCIB (B30-80) - EIB (B30-101) LG - P Battery current sensor Ignition switch ON 4.5 to 5.5 V
IB (B30-100) - EIB (B30-101) R - P Battery current sensor Ignition switch ON 0.5 to 2.5 V
THB (B30-103) - EIB (B30-101) G-R - P Battery temperature
sensorIgnition switch ON, battery
temperature -30 to 80
C (-22 to
176
F)0.5 to 4.5 V
RLO (B30-31) - E1 (B30-81) Y - BR Generator After engine warmed up, during
charging control, vehicle driven at
constant speedPulse generation (see
waveform 14)
RLO (B30-31) - E1 (B30-81) Y - BR Generator After engine warmed up, during
charging control, vehicle
acceleratedPulse generation (see
waveform 15)
RLO (B30-31) - E1 (B30-81) Y - BR Generator After engine warmed up, during
charging control, vehicle
deceleratedPulse generation (see
waveform 16)
AICV (A9-4) - E1 (B30-81) L - BR VSV for air intake control
system operation signalIgnition switch ON 9 to 14 V
ACIS (B30-107) - E1 (B30-81) R - BR VSV for ACIS (Acoustic
Control Induction System)
operation signalIgnition switch ON 9 to 14 V Symbol (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
A093229E02
Symbol (Terminal No.) Between OC1+ and OC1-
Between OC2+ and OC2-
Between OE1+ and OE1-
Between OE2+ and OE2-
Tester Range 5 V/DIV., 1 msec./DIV.
Condition Idling

2GR-FE ENGINE MECHANICAL – ENGINE ASSEMBLYEM–31
EM
INSTALLATION
1. INSTALL ENGINE COOLANT TEMPERATURE
SENSOR
(a) Using a 19 mm deep socket wrench, install the
sensor and a new gasket.
Torque: 20 N*m (204 kgf*cm, 14 ft.*lbf)
2. INSTALL KNOCK SENSOR (See page ES-459)
3. INSTALL ENGINE OIL PRESSURE SWITCH
ASSEMBLY
(a) Clean the threads of the oil pressure switch. Apply
adhesive to 2 or 3 threads of the oil pressure switch.
Adhesive:
Toyota Genuine Adhesive 1344, Three Bond
1344 or Equivalent
(b) Using a 24 mm deep socket wrench, install the oil
pressure switch.
Torque: 21 N*m (214 kgf*cm, 15 ft.*lbf)
4. INSTALL NO. 1 FRONT ENGINE MOUNTING
BRACKET LH
(a) Install the mounting bracket with the 6 bolts.
Torque: 54 N*m (551 kgf*cm, 40 ft.*lbf)
5. INSTALL WATER PUMP PULLEY (See page CO-14)
6. INSTALL NO. 2 IDLER PULLEY SUB-ASSEMBLY
(a) Install the idler pulley and cover plate with the bolt.
Torque: 43 N*m (438 kgf*cm, 32 ft.*lbf)
7. INSTALL NO. 2 TIMING GEAR COVER
(a) Install the gear cover with the 2 bolts.
Torque: 6.0 N*m (61 kgf*cm, 53 in.*lbf)
8. INSTALL V-RIBBED BELT TENSIONER ASSEMBLY
(a) Temporarily install the V-ribbed belt tensioner with
the 5 bolts.
(b) Install the V-ribbed belt tensioner by tightening the
bolt 1 and bolt 2 in the order shown in the
illustration.
Torque: 43 N*m (438 kgf*cm, 32 ft.*lbf)
(c) Tighten the other bolts.
Torque: 43 N*m (438 kgf*cm, 32 ft.*lbf)
Each bolt length is as follows:
A129648
A129647
A129646
A139522
A139138E01
A 70 mm (2.76 in.)

EC–82GR-FE EMISSION CONTROL – EMISSION CONTROL SYSTEM
EC
ON-VEHICLE INSPECTION
1. CHECK FUEL CUT RPM
(a) Increase the engine speed to at least 3,500 rpm.
(b) Use a sound scope to check for injector operating
noise.
(c) Check that the operating sounds stop momentarily
and then resume when the throttle lever is released.
HINT:
Measure with the A/C OFF.
Fuel return rpm:
1,400 rpm
2. CHECK FOR LEAKS
(a) Visually check that the hoses, connections and
gaskets have no cracks, leaks or damage.
NOTICE:
• Detachment or other problems with the
engine oil dipstick, filler cap, PCV hose and
other components may cause the engine to
run improperly.
• Disconnection, looseness or cracks in the
parts of the air induction system between the
throttle body and cylinder head will allow air
suction and cause an engine failure or engine
malfunctions.
If the result is not as specified, replace parts as
necessary.
3. CHECK LINE AND CONNECTORS
(a) Visually check for loose connections, sharp bends
or damage.
4. CHECK FUEL TANK ASSEMBLY
(a) Visually check for deformation, cracks or fuel
leakage.
5. CHECK FUEL TANK AND VENT LINE
(a) Disconnect the vent line tube from the canister.
(b) Connect a pressure gauge to the vent line tube.
A094394E01
A127736E01

AX–20U140F AUTOMATIC TRANSAXLE – AUTOMATIC TRANSAXLE SYSTEM
AX
(g) Depress the accelerator pedal as much as possible
with your right foot. Quickly read the highest line
pressure reading when the engine speed reaches
stall speed.
(h) Perform the measure line pressure test again with
the shift lever on R.
Specified line pressure:
Evaluation:
Condition Shift Lever on D Shift Lever on R
Idling 372 to 412 kPa
(3.8 to 4.2 kgf/cm
2, 54 to 60 psi)672 to 742 kPa
(6.9 to 7.6 kgf/cm2, 97 to 108 psi)
Stall 931 to 1,031 kPa
(9.5 to 10.5 kgf/cm
2, 135 to 150 psi)1,768 to 1,968 kPa
(18.0 to 20.0 kgf/cm2, 256 to 285 psi)
Problem Possible Cause
Measured values at all positions are higher than specified • Shift solenoid valve SLT defective
• Regulator valve defective
Measured values at all positions are lower than specified • Shift solenoid valve SLT defective
• Regulator valve defective
• Oil pump defective
• U/D (underdrive) direct clutch defective
Pressure is low when shift lever is on D only • D position circuit fluid leak
• Forward clutch defective
Pressure is low when shift lever is on R only • R position circuit fluid leak
• Direct clutch defective
• 1st and reverse brake defective

U151E AUTOMATIC TRANSAXLE – AUTOMATIC TRANSAXLE SYSTEMAX–21
AX
(12)Turn the ignition switch off.
(13)Remove SST, and install the test plug A.
(14)Remove the test plug B, install SST and start
the engine.
SST 09992-00095 (09992-00231, 09992-
00271)
(15)Connect the transmission wire connector,
depress the brake pedal firmly, shift to the R
position and check the line pressure while the
engine is idling and during the stall test.
Specified line pressure:
(16)Remove SST, and install the test plug B.
(17)Clear the DTC.
Evaluation:
Condition
R position kPa (kgf/cm2, psi)
Idling 672 to 742 kPa
(6.9 to 7.6 kgf/cm
2, 97 to 108 psi)
Stall test 1,768 to 1,968 kPa
(18.0 to 20.0 kgf/cm
2, 256 to 285 psi)
Problem Possible cause
Measured values at all positions are higher than specified • Shift solenoid valve SLT defective
• Regulator valve defective
Measured values at all positions are lower than specified • Shift solenoid valve SLT defective
• Regulator valve defective
• Oil pump defective
• U/D (underdrive) direct clutch defective
Pressure is low when shift lever is on D only • D position circuit fluid leak
• Forward clutch defective
Pressure is low when shift lever is on R only • R position circuit fluid leak
• Reverse clutch defective
• 1st and reverse brake defective

U151F AUTOMATIC TRANSAXLE – AUTOMATIC TRANSAXLE SYSTEMAX–21
AX
(12)Turn the ignition switch off.
(13)Remove SST, and install the test plug A.
(14)Remove the test plug B, install SST and start
the engine.
SST 09992-00095 (09992-00231, 09992-
00271)
(15)Connect the transmission wire connector,
depress the brake pedal firmly, shift to the R
position and check the line pressure while the
engine is idling and during the stall test.
Specified line pressure:
(16)Remove SST, and install the test plug B.
(17)Clear the DTC.
Evaluation:
Condition
R position kPa (kgf/cm2, psi)
Idling 672 to 742 kPa
(6.9 to 7.6 kgf/cm
2, 97 to 108 psi)
Stall test 1,768 to 1,968 kPa
(18.0 to 20.0 kgf/cm
2, 256 to 285 psi)
Problem Possible cause
Measured values at all positions are higher than specified • Shift solenoid valve SLT defective
• Regulator valve defective
Measured values at all positions are lower than specified • Shift solenoid valve SLT defective
• Regulator valve defective
• Oil pump defective
• U/D (underdrive) direct clutch defective
Pressure is low when shift lever is on D only • D position circuit fluid leak
• Forward clutch defective
Pressure is low when shift lever is on R only • R position circuit fluid leak
• Reverse clutch defective
• 1st and reverse brake defective