sensor TOYOTA CAMRY 2000 Service Repair Manual

S00251
From BatteryIgnition Coil
Spark Plug
IGC1
IGC2
IGC3
GND TA C IGT1
IGT2
IGT3
IGF
To Tachometer ECM G
NE
Camshaft
Position
Sensor
Crankshaft
Position
Sensor
Various
SensorNo.2 Cylinder
No.1 Cylinder
No.4 Cylinder
No.3 Cylinder
No.6 Cylinder
No.5 Cylinder
± DIAGNOSTICSENGINE (1MZ±FE)
DI±351
586 Author: Date:
DTC P1300 Igniter Circuit Malfunction
CIRCUIT DESCRIPTION
A DIS (Direct Ignition System) has been adopted. The DIS improves the ignition timing accuracy, reduces
high±voltage loss, and enhances the overall reliability of the ignition system by eliminating the distributor.
The DIS is a 2±cylinder simultaneous ignition system which ignites 2 cylinders simultaneously with one igni-
tion coil. In the 2±cylinder simultaneous ignition system, each of the 2 spark plugs is connected to the end
of the secondary winding. High voltage generated in the secondary winding is applied directly to the spark
plugs. The sparks of the 2 spark plugs pass simultaneously from the center electrode to the ground elec-
trode.
The ECM determines ignition timing and outputs the ignition signals (IGT) for each cylinder. Based on IGT
signals, the igniter controls the primary ignition signals (IGC) for all ignition coils. At the same time, the igniter
also sends an ignition confirmation signal (IGF) as a fail±safe measure to the ECM.
DTC No.DTC Detecting ConditionTrouble Area
P1300
Condition (a) is repeated 3 times consecutively during 6
consecutively IGT signals while engine is running
(a) IGF signal is not input to ECM for 2 or more ignitions
Open or short in IGF or IGT circuit from igniter to ECM

Igniter

ECM
DI084±06

± DIAGNOSTICSENGINE (1MZ±FE)
DI±357
592 Author: Date:
DTC P1335 Crankshaft Position Sensor Circuit
Malfunction (during engine running)
CIRCUIT DESCRIPTION
Refer to DTC P0335 (Crankshaft Position Sensor ºAº Circuit Malfunction) on page DI±287.
DTC No.DTC Detecting ConditionTrouble Area
P1335No crankshaft position sensor signal to ECM with engine
speed 1,000 rpm or more

Open or short in crankshaft position sensor circuit

Crankshaft position sensor

Starter

ECM
WIRING DIAGRAM
Refer to DTC P0335 (Crankshaft Position Sensor ºAº Circuit Malfunction) on page DI±287.
INSPECTION PROCEDURE
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.
Refer to DTC P0335 (Crankshaft Position Sensor ºAº Circuit Malfunction) on page DI±287.
DI085±06

S06113
Close u Valve Opening " Open 0V 5V
Output Voltage
S05464
EGR Valve Position Sensor
3ECM
1
2Y
W±G
BRVC5V
EGLS
E2 E102
E1122
E1018 DI±358
± DIAGNOSTICSENGINE (1MZ±FE)
593 Author: Date:
DTC P1410 EGR Valve Position Sensor Circuit
Malfunction
CIRCUIT DESCRIPTION
The EGR valve position sensor is mounted on the EGR valve
and detects the lift amount of EGR valve. The lift amount of
EGR valve which is detected by the EGR valve position sensor
provides feedback to the ECM to control the lift amount of EGR
valve in response to engine operating conditions.
DTC No.DTC Detecting ConditionTrouble Area
P1410Open or short in EGR valve position sensor circuit
(2 trip detection logic)
Open or short in EGR valve position sensor circuit

EGR valve position sensor

ECM
WIRING DIAGRAM
DI086±06

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).

A02022
ON
VC (+) E2 (±)
± DIAGNOSTICSENGINE (1MZ±FE)
DI±361
596 Author: Date:
4 Check voltage between terminals VC and E2 of ECM connector.
PREPARATION:
(a) Remove the glove compartment (See page SF±73).
(b) Turn the ignition switch ON.
CHECK:
Measure voltage between terminals VC and E2 of the ECM
connector.
OK:
Voltage: 4.5 ~ 5.5 V
NG Check and replace ECM (See page
IN±31).
OK
Check for open and short in harness and
connector between ECM and EGR valve
position sensor (VC line).

DI±362
± DIAGNOSTICSENGINE (1MZ±FE)
597 Author: Date:
DTC P1411 EGR Valve Position Sensor Circuit
Range/Performance Problem
CIRCUIT DESCRIPTION
Refer to DTC P1410 (EGR Valve Position Sensor Circuit Malfunction) on page DI±358.
DTC No.DTC Detecting ConditionTrouble Area
P1411
Conditions (a) and (b) continue for 500 msec. or more:
(2 trip detection logic)
(a) Engine Coolant Temp. < 55C (415F)
(b) EGLS
1.65 V or EGLS < 0.35 V

EGR valve position sensor
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 Are there any other codes (besides DTC P1411) being output?
YES Go to relevant DTC chart.
NO
Replace EGR valve position sensor.
DI087±06

A07449
Fusible
Link
Block
FL
MAINStop Light Switch
B±G1B 1CSTOP
WG±WLight
Failure
Sensor 7
2
To Stop Light Instrument Panel J/B
Instrument Panel J/B
E7 15
G±W
1S 1R
1R1
2
F9
F4
BatteryECM
STP
E1 B±R
ALT
G±WA
C
J27Junction
Connector
J2845
2
G±W7 4
1
1
± DIAGNOSTICSENGINE (1MZ±FE)
DI±363
598 Author: Date:
DTC P1520 Stop Light Switch Signal Malfunction
(Only for A/T)
CIRCUIT DESCRIPTION
This signal is used to detect when the brakes have been applied. The STP signal voltage is the same as
the voltage supplied to the stop lights.
The STP signal is used mainly to control the fuel cut±off engine speed (The fuel cut±off engine speed is re-
duced slightly when the vehicle is braking.).
DTC No.DTC Detecting ConditionTrouble Area
P1520
Stop light switch does not turn off when repeating the driving at
30 km or more 10 times or more after depressing brake
(2 trip detection logic)
Short in stop light switch signal circuit

Stop light switch

ECM
WIRING DIAGRAM
DI088±06

DI02X±02
± DIAGNOSTICSAUTOMATIC TRANSAXLE (A140E)
DI±401
636 Author: Date:
DIAGNOSTIC TROUBLE CODE CHART
If a DTC is displayed during the DTC check, check the circuit listed for that code in the table below and pro-
ceed to the page given.
* :
...MIL light up
DTC No.
(See Page)Detection ItemTrouble AreaMIL *Memory
P0500
(DI±408)Vehicle Speed Sensor Malfunc-
tion
(No.1 Vehicle Speed Sensor)
Open or short in No.1 vehicle speed sensor circuit
No.1 vehicle speed sensor
Combination meter
ECM
Automatic transaxle (clutch, brake or gear etc.)


P0750
(DI±411)Shift Solenoid A Malfunction
(Shift Solenoid Valve No.1)Shift solenoid valve No.1 is stuck open or closed
Valve body is blocked up or stuck
Automatic transaxle (clutch, brake or gear etc.)


P0753
(DI±413)Shift Solenoid A Electrical Mal-
function
(Shift Solenoid Valve No.1)Open or short in shift solenoid valve No.1 circuit
Shift solenoid valve No.1
ECM


P0755
(DI±411)Shift Solenoid B Malfunction
(Shift Solenoid Valve No.2)Shift solenoid valve No.2 is stuck open or closed
Valve body is blocked up or stuck
Automatic transaxle (clutch, brake or gear etc.)


P0758
(DI±413)Shift Solenoid B Electrical Mal-
function
(Shift Solenoid Valve No.2)Open or short in shift solenoid valve No.2 circuit
Shift solenoid valve No.2
ECM


P0770
(DI±417)Shift Solenoid E Malfunction
(Shift Solenoid Valve SL)
Shift solenoid valve SL is stuck open or closed
Valve body is blocked up or stuck
Lock±up clutch
Automatic transaxle (clutch, brake or gear etc.)


P0773
(DI±419)Shift Solenoid E Electrical Mal-
function
(Shift Solenoid Valve SL)Open or short in shift solenoid valve SL circuit
Shift solenoid valve SL
ECM


P1520
(DI±170)Stop Light Switch Signal Mal-
functionOpen or short in stop light switch circuit
Stop light switch
ECM


P1780
(DI±424)Park/Neutral Position Switch
MalfunctionShort in park/neutral position switch circuit
Park/neutral position switch
ECM



DI02Y±02
D00938
Shift Solenoid Valve SLVehicle Speed SensorECMO/D Main SwitchO/D OFF Indicator Light
DLC3
Stop Light Switch
Shift Solenoid Valve No.2
Shift Solenoid Valve No.1 Park/Neutral Position Switch
DI±402
± DIAGNOSTICSAUTOMATIC TRANSAXLE (A140E)
637 Author: Date:
PARTS LOCATION