01046–02
D25086
WRONG
CORRECT
D25087
Looseness of Crimping
Core Wire
Terminal
Deformation
Pull Lightly
–
INTRODUCTION
HOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMS
01–31
31
Author:
Date:
2002 CAMRY REPAIR MANUAL (RM881U)
ELECTRONIC CIRCUIT INSPECTION PROCEDURE
1.
BASIC INSPECTION
(a)
RESISTANCE MEASURING CONDITION OF ELECTRONIC PARTS
(1)
Unless stated, all resistance is measured at an ambient temperature of 20
C (68
F). Because
the resistance may be outside the specifications if measured at high temperatures immediately
after the vehicle has been running, measurements should be made when the engine has cooled
down.
(b)
HANDLING OF CONNECTOR
(1)
When removing the connector with a lock, press the
connector toward the engagement and remove the
lock by making the lock claw movable easily.
(2)
When removing the connector, do not hold the har-
ness, but hold the connector.
(3)
Before connecting the connector, check that there
are no deformation, damage and missing of the ter-
minals.
(4)
Connection of the connector with a lock should be
securely done until it makes a click sound.
(5)
In case of checking the connector with a Toyota
electrical tester, perform it at the back side (harness
side) of the connector using a mini test lead.
NOTICE:
As a water proof connector cannot be checked from
its back side, check by connecting the sub–harness.
Do not damage the terminals by moving the inserted
tester needle.
(c)
CONNECTOR CHECKING POINTS
(1)
Checking when the connector is connected:
By holding the connector, check the inserted condi-
tion and locking efficiency (engaged condition).
(2)
Checking when the connector is removed:
Check by pulling the wire harness lightly (missing
terminal, terminal crimping condition, core wire
break).
Check visually if there is any rust, metal tip, water
and bend of terminal (rust, mixing of foreign object,
terminal deformation).
NOTICE:
When testing a gold–plated female terminal, always use a
gold–plated male terminal.
