1202Z–01
A59589
Disconnect
Ohmmeter
E2
VC
Ohmmeter
A59590
VC(+)
E2(–)
A59591
E2(–)
EGLS(+)
Disconnect
–
EMISSION CONTROL
EGR SYSTEM (1MZ–FE)
12–21
1514
Author:
Date:
2002 CAMRY REPAIR MANUAL (RM881U)
EGR SYSTEM (1MZ–FE)
ON–VEHICLE INSPECTION
1.
INSPECT EGR VALVE POSITION SENSOR
(a)
Inspect the resistance of the EGR valve position sensor.
(1)
Disconnect the EGR valve position sensor connec-
tor.
(2)
Using an ohmmeter, measure the resistance be-
tween the terminals VC and E2.
Resistance: 1.5 – 4.3 k
Ω
If the resistance is not as specified, replace the EGR valve posi-
tion sensor.
(3)
Reconnect the EGR valve position sensor connec-
tor.
(b)
Inspect the power output voltage of the EGR valve posi-
tion sensor.
(1)
Disconnect the vacuum hose from the EGR valve.
(2)
Turn the ignition switch ON.
(3)
Connect a voltmeter to terminals VC and E2 of the
ECM, and measure the power source voltage.
Voltage: 4.5 – 5.5V
(4)
Connect a voltmeter to terminals EGLS and E2 of
the ECM, and measure the power outlet voltage un-
der the following conditions.
Using the MITYVAC (Hand–Held Vacuum
Pump), apply a vacuum (17.3 kPa,
130mmHg, 5.1 in.Hg) to the EGR valve.
Voltage: 3.2 – 5.1 V
Release the vacuum from the EGR valve.
Voltage: 0.4 – 1.6 V
If the voltage is not as specified, replace the EGR valve position
sensor.
(5)
Reconnect the vacuum hose to the EGR valve.