Toyota Camry Manual page 39

Fig. 1
C OPEN
Sensor
1 1
2 2
Fig. 2
C
B
Sensor
1
2
Fig. 3
Sensor
B2
C
1 1
2 2
INTRODUCTION
(d)
NOTICE:
When testing a gold–plated female terminal, always use a
gold–plated male terminal.
HINT:
When the test terminal is pulled out more easily than others,
there may be poor contact in that section.
6.
ECU
For the open circuit in the wire harness in Fig. 1, perform "(a)
Continuity Check" or "(b) Voltage Check" to locate the section.
B A
1 1
2 2
Z17004
(a)
ECU
A
1 1
2 2
Z17005
ECU
B1 A
1 1
2 2
B04722
– HOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMS
Prepare a test male terminal and insert it in the female ter-
minal, then pull it out.
CHECK OPEN CIRCUIT
Check the continuity.
(1) Disconnect connectors "A" and "C" and measure
the resistance between them.
In the case of Fig. 2,
Between terminal 1 of connector "A" and terminal 1
of connector "C"
Between terminal 2 of connector "A" and terminal 2
of connector "C"
Therefore, it is found out that there is an open circuit
between terminal 1 of connector "A" and terminal 1
of connector "C".
(2) Disconnect connector "B" and measure the resis-
tance between them.
In the case of Fig. 3,
Between terminal 1 of connector "A" and terminal 1
of connector "B1"
Between terminal 1 of connector "B2" and terminal
1 of connector "C"
Therefore, it is found out that there is an open circuit
between terminal 1 of connector "B2" and terminal
1 of connector "C".
Author :
No continuity (open)
Continuity
Continuity
No continuity (open)
Date :
IN–33
33