2000 TOYOTA CAMRY vacuum switch valve

INTRODUCTIONGLOSSARY OF SAE AND TOYOTA TERMS ±
IN±8
TVVThermal Vacuum ValveBimetallic Vacuum Switching Valve (BVSV)
Thermostatic Vacuum Switching Valve (TVSV)
TWCThree±Way Catalytic ConverterThree±Way Catalyst (TWC)
CC
RO
TWC+OCThree±Way + Oxidation Catalytic ConverterCCR + CCo
VA FVolume Air FlowAir Flow Meter
VRVoltage RegulatorVoltage Regulator
VSSVehicle Speed SensorVehicle Speed Sensor (Read Switch Type)
WOTWide Open ThrottleFull Throttle
WU±OCWarm Up Oxidation Catalytic Converter±
WU±TWCWarm Up Three±Way Catalytic ConverterManifold Converter
3GRThird Gear±
4GRFourth Gear±

INTRODUCTIONGLOSSARY OF SAE AND TOYOTA TERMS ±
IN±8
TVVThermal Vacuum ValveBimetallic Vacuum Switching Valve (BVSV)
Thermostatic Vacuum Switching Valve (TVSV)
TWCThree±Way Catalytic ConverterThree±Way Catalyst (TWC)
CC
RO
TWC+OCThree±Way + Oxidation Catalytic ConverterCCR + CCo
VA FVolume Air FlowAir Flow Meter
VRVoltage RegulatorVoltage Regulator
VSSVehicle Speed SensorVehicle Speed Sensor (Read Switch Type)
WOTWide Open ThrottleFull Throttle
WU±OCWarm Up Oxidation Catalytic Converter±
WU±TWCWarm Up Three±Way Catalytic ConverterManifold Converter
3GRThird Gear±
4GRFourth Gear±

DI1JT±03
D00032
E9E8E7
ECM Terminals DI±22
± DIAGNOSTICSENGINE (5S±FE)
257 Author: Date:
TERMINALS OF ECM
Without engine immobiliser system
Symbols (Terminals No.)Wiring ColorConditionSTD Voltage (V)
BATT (E7 ± 1) ± E1 (E9 ± 14)B ± Y e BRAlways9 ~ 14
+ B (E7 ± 12) ± E1 (E9 ± 14)B ± Y e BRIG switch ON9 ~ 14
VC (E8 ± 1) ± E2 (E8 ± 9)Ye BRIG switch ON4.5 ~ 5.5
VTA (E8 11) E2 (E8 9)LGBR
IG switch ON
Throttle valve fully closed0.3 ~ 1.0
VTA (E8 ± 11) ± E2 (E8 ± 9)LG e BRIG switch ON
Throttle valve fully open3.2 ~ 4.9
PIM (E8 2) E2 (E8 9)BYBR
IG switch ON3.3 ~ 3.9
PIM (E8 ± 2) ± E2 (E8 ± 9)B ± Y e BRApply vacuum 26.7 kPa (200 mmHg, 7.9 in.Hg)2.5 ~ 3.1
THA (E8 ± 3) ± E2 (E8 ± 9)Y ± B e BRIdling, Intake air temp. 20°C (68° F)0.5 ~ 3.4
THW (E8 ± 4) ± E2 (E8 ± 9)G ± B e BRIdling, Engine coolant temp. 80°C (176°F) 0.2 ~ 1.0
STA (E7 11) E1 (E9 14)*1 GR e BRCranking6.0 or moreSTA (E7 ± 11) ± E1 (E9 ± 14) *2 B ± O e BRCranking6.0 or more
IG switch ON9 ~ 14
#10 (E9 ± 12) ± E01 (E9 ± 13) L e BRIdlingPulse generation
(See page DI±89)
IG switch ON9 ~ 14
#20 (E9 ± 11) ± E01 (E9 ± 13)R e BRIdlingPulse generation
(See page DI±89)
IG switch ON9 ~ 14
#30 (E9 ± 25) ± E01 (E9 ± 13)Y e BRIdlingPulse generation
(See page DI±89)
IG switch ON9 ~ 14
#40 (E9 ± 24) ± E01 (E9 ± 13)W e BRIdlingPulse generation
(See page DI±89)
IGT1 (E9 ± 20) ± E1 (E9 ± 14)B e BRIdlingPulse generation
(See page DI±163)
IGT2 (E9 ± 19) ± E1 (E9 ± 14)Y ± R e BRIdlingPulse generation
(See page DI±163)
IG switch ON, Disconnect ignition coil connector4.5 ~ 5.5
IGF (E9 ± 3) ± E1 (E9 ± 14)W ± R e BRIdlingPulse generation
(See page DI±163)
*1: TMC made
*2: TMMK made

A02958
E7ECM Terminals
E9E8E10
11
19
1412 10 9 8
7652
43
18 21 22
20
16151
13
17 11 14
109
87 652 4
3
21 2220
16 15 131
12 11 1 09
652
43 1 12
7 8
19
14
109 8
7652
43
18
23 2416
151
17
11 12 13 25
26
± DIAGNOSTICSENGINE (5S±FE)
DI±25
260 Author: Date:
With engine immobiliser system
Symbols (Terminals No.)Wiring ColorConditionSTD Voltage (V)
BATT (E7 ± 2) ± E1 (E9 ± 24)B ± Y e BRAlways9 ~ 14
+ B (E7 ± 12) ± E1 (E9 ± 24)B ± Y e BRIG switch ON9 ~ 14
VC (E8 ± 1) ± E2 (E8 ± 9)Ye BRIG switch ON4.5 ~ 5.5
VTA (E8 10) E2 (E8 9)LGBR
IG switch ON
Throttle valve fully closed0.3 ~ 1.0
VTA (E8 ± 10) ± E2 (E8 ± 9)LG e BRIG switch ON
Throttle valve fully open3.2 ~ 4.9
PIM (E8 2) E2 (E8 9)BYBR
IG switch ON3.3 ~ 3.9
PIM (E8 ± 2) ± E2 (E8 ± 9)B ± Y e BRApply vacuum 26.7 kPa (200 mmHg, 7.9 in.Hg)2.5 ~ 3.1
THA (E8 ± 3) ± E2 (E8 ± 9)Y ± B e BRIdling, Intake air temp. 20°C (68° F)0.5 ~ 3.4
THW (E8 ± 4) ± E2 (E8 ± 9)G ± B e BRIdling, Engine coolant temp. 80°C (176°F) 0.2 ~ 1.0
STA (E7 11) E1 (E9 24)*1 GR e BRCranking6.0 or moreSTA (E7 ± 11) ± E1 (E9 ± 24) *2 B ± O e BRCranking6.0 or more
#10 (E9 12)IG switch ON9 ~ 14#10 (E9 ± 12)
± E01 (E9 ± 13) L e BRIdlingPulse generation
(See page DI±89)
#20 (E9 11)IG switch ON9 ~ 14#20 (E9 ± 11)
± E01 (E9 ± 13)R e BRIdlingPulse generation
(See page DI±89)
#30 (E9 10)IG switch ON9 ~ 14#30 (E9 ± 10)
± E01 (E9 ± 13)Y e BRIdlingPulse generation
(See page DI±89)
IG switch ON9 ~ 14
#40 (E9 ± 9) ± E01 (E9 ± 13)W e BRIdlingPulse generation
(See page DI±89)
IGT1 (E9 ± 23)
± E1 (E9 ± 24)B e BRIdlingPulse generation
(See page DI±163)
IGT2 (E9 ± 22)
± E1 (E9 ± 24)Y ± R e BRIdlingPulse generation
(See page DI±163)
IG switch ON, Disconnect ignition coil connector4.5 ~ 5.5
IGF (E9 ± 17) ± E1 (E9 ± 24)W ± R e BRIdlingPulse generation
(See page DI±163)
*1: TMC made
*2: TMMK made

± DIAGNOSTICSENGINE (5S±FE)
DI±33
268 Author: Date:
DTC P0106 Manifold Absolute Pressure Circuit
Range/Performance Problem
CIRCUIT DESCRIPTION
Refer to DTC P0105 (Manifold Absolute Pressure/Barometric Pressure Circuit Malfunction) on page
DI±29.
DTC No.DTC Detecting ConditionTrouble Area
P0106
After engine is warmed up, conditions (a) and (b) continue with
engine speed 400 ~ 1,000 rpm
(2 trip detection logic)
(a) Throttle valve fully closed
(b) Manifold absolute pressure sensor output > 3.0 V

Manifold absolute pressure sensorP0106Condition (c) and (d) continue with engine speed 2,500 rpm or
less
(2 trip detection logic)
(c) VTA > 1.85
(d) Manifold absolute pressure sensor output < 1.0 V

Manifold absolute ressure sensor

Vacuum line
WIRING DIAGRAM
Refer to DTC P0105 (Manifold Absolute Pressure/Barometric Pressure Circuit Malfunction) on page
DI±29.
INSPECTION PROCEDURE
HINT:

If DTC P0105 (Manifold Absolute Pressure/Barometric Pressure Circuit Malfunction) and P0106 (Man-
ifold Absolute Pressure /Barometric Pressure Circuit Range/Performance Problem) are output simul-
taneously, manifold absolute pressure sensor circuit may be open. Perform troubleshooting of DTC
P0105 first.

If DTC P0105 (Manifold Absolute Pressure/Barometric Pressure Circuit Malfunction), P0106 (Manifold
Absolute Pressure /Barometric Pressure Circuit Range/Performance Problem), P0110 (Intake Air
Temp. Circuit Malfunction), P0115 (Engine Coolant Temp. Circuit Malfunction) and P0120 (Throttle/
Pedal Position Sensor/Switch ºAº Circuit Malfunction) are output simultaneously, E2 (sensor ground)
may be open.

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 Are there any other codes (besides DTC P0106) being output?
YES Go to relevant DTC chart.
NO
DI00N±04

DI±220
± DIAGNOSTICSENGINE (1MZ±FE)
455 Author: Date:
Symbols (Terminals No.)Wiring ColorConditionSTD Voltage (V)
TC (E11 ± 6) ± E1 (E10 ± 17)L±W eBRIG switch ON9 ~ 14
W (E7 ± 6) ± E01 (E11 ± 21)G±R eBRIG switch ONBelow 3.0
PS (E10 ± 9) ± E1 (E10 ± 17)B±L eBRIG switch ON9 ~ 14
ACT (E8 13) E1 (E10 17)LG BBRA/C switch OFFBelow 2.0ACT (E8 ± 13) ± E1 (E10 ± 17)LG±B eBRA/C switch ON at idling9 ~ 14
A/C (E8 25) E1 (E10 17)BYBRA/C switch ON at idlingBelow 2.0A/C (E8 ± 25) ± E1 (E10 ± 17)B±Y eBRA/C switch OFF9 ~ 14
CF (E11 29) E1 (E10 17)GWBRElectric cooling fan is operating on high speed9 ~ 14CF (E11 ± 29) ± E1 (E10 ± 17)G±W eBRElectric cooling fan is operating on low speed or OFF0 ~ 2
TACH (E8± 27) ± E1 (E10 ± 17)B±O eBRIdlingPulse generation
TPC (E7 ± 9) ± E01 (E11 ± 21)W±R eBRIG switch ON
Disconnect the vacuum hose from the vapor pressure sensor9 ~ 14
PTNK (E7 17)IG switch ON3.0 ~ 3.6PTNK (E7 ± 17)
± E1 (E10 ± 17)L±R eBRIG switch ON
Apply vacuum 2.0 kPa (15 mmHg, 0.6 in.Hg)1.3 ~ 2.1
SIL (E7 ± 11) ± E1 (E10 ± 17)W eBRDuring transmissionPulse generation
STP (E7 15) E1 (E10 17)GWBR
IG switch ON
Brake pedal depressed7.5 ~ 14
STP (E7 ± 15) ± E1 (E10 ± 17)G±W eBRIG switch ON
Brake pedal releasedBelow 1.5
EGLS (E11 ± 22)WGBR
IG switch ON
Apply vacuum (0 kPa, 0 mmHg, 0 in.Hg) to EGR valve0.4 ~ 1.6EGLS (E11 22)
± E1 (E10 ± 17)W±G eBRIG switch ON
Apply vacuum (17.3 kPa, 130 mmHg, 5.12 in.Hg) to EGR valve3.2 ~ 5.1
*1
AFR+ (E10 ± 11
± E1 (E10 ± 17)BR eBRIG switch ON3.3*
*1
AFR± (E10 ± 20)
± E1 (E10 ± 17)B±R eBRIG switch ON3.0*
*1
AFL+ (E10 ± 12)
± E1 (E10 ± 17)B±W eBRIG switch ON3.3*
*1
AFL± (E10 ± 21)
± E1 (E10 ± 17)L eBRIG switch ON3.0*
*1
HAFR (E10 ± 3)BRBRIG switch ONBelow 3.0 HAFR (E10 3)
± E04 (E10 ± 1)B±R eBRIdling (warm up the engine)Pulse generation
*1
HAFL (E10 ± 4)BWBRIG switch ONBelow 3.0 HAFL (E10 4)
± E05 (E10 ± 8)B±W eBRIdling (warm up the engine)Pulse generation
KSW (E8 11) E1 (E10 17)LBBRAt time of inserting the keyBelow 1.5KSW (E8 ± 11) ± E1 (E10 ± 17)L±B eBRIn condition without the key inserted4 ~ 5
RXCK (E9 ± 5) ± E1 (E10 ± 17)R±L eBRAt time of inserting the keyPulse generation
CODE (E9 ± 4) ± E1 (E10 ± 17)G±W eBRAt time of inserting the keyPulse generation
IGSW (E7 ± 2) ± E1 (E10 ± 17)B±R eBRIG switch ON9 ~ 14
TXCT (E9± 10) ± E1 (E10 ± 17)L±Y eBRAt time of inserting the keyPulse
IMLD (E9 ± 16) ± E1 (E10 ± 17)R±Y eBRIn condition without the key insertedPulse
MREL (E7 ± 8) ± E1 (E10 ± 17)B±R eBRIG switch ON9 ~ 14
*: The ECM terminal voltage is fixed regardless of the output voltage from the sensor.
*
1: Only for California specification vehicles

A00379
ON
1 (+)
BE6653S05694
S05742
1
2
± DIAGNOSTICSENGINE (1MZ±FE)
DI±359
594 Author: Date:
INSPECTION PROCEDURE
HINT:

If DTCs ºP0110º (Intake Air Temp. Circuit Malfunction), ºP0115º (Engine Coolant Temp. Circuit Mal-
function), ºP0120º (Throttle/Pedal Position/Switch ºAº Circuit Malfunction), ºP1410º (EGR Valve Posi-
tion Sensor Circuit Malfunction) are output simultaneously, E2 (Sensor Ground) may be open.

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 voltage between terminal VC of wire harness side connector and body
ground.
PREPARATION:
(a) Disconnect the vacuum hose from EGR valve.
(b) Disconnect the EGR valve position sensor connector.
(c) Turn the ignition switch ON.
CHECK:
Measure voltage between terminal 1 of wire harness side con-
nector and body ground.
OK:
Voltage: 4.5 ~ 5.5 V
NG Go to step 4.
OK
2 Check EGR valve position sensor.
PREPARATION:
Disconnect the EGR valve position sensor connector.
CHECK:
Measure resistance between terminals 1 (VC) and 2 (E2) of
EGR valve position sensor.
OK:
Resistance: 1.5 ~ 4.3 kW
NG Replace EGR valve position sensor.
OK

A02036
ON
EGLS (+) E2 (±)
DI±360
± DIAGNOSTICSENGINE (1MZ±FE)
595 Author: Date:
3 Check voltage between terminals EGLS and E2 of ECM connectors.
PREPARATION:
(a) Disconnect the vacuum hose from EGR valve.
(b) Connect the hand±held vacuum pump to EGR valve.
(c) Remove the glove compartment (See page SF±73).
(d) Turn the ignition switch ON.
CHECK:
Measure voltage between terminals EGLS and E2 of the ECM
connectors.
OK:
ConditionVltEGR valveVacuumVoltage
Fully closed0 kPa
(0 mmHg, 0 in.Hg)0.4 ~ 1.6 V
Fully open17.3 kPa
(130 mmHg, 5.12 in.Hg)3.2 ~ 5.1 V
NG Check for open and short in harness and
connector between ECM and EGR valve
position sensor (EGLS or E2 line).
OK
Check and replace ECM (See page IN±31).