Electronic Circuit Inspection Procedure; Basic Inspection; Resistance Measuring Condition Of Electronic Parts; Handling Of Connector - Toyota Corolla 2004 Manual

01–30

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). As the re-
sistance 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.
Looseness of Crimping
Core Wire
Pull Lightly
2004 COROLLA (RM1037U)
INTRODUCTION
(b)

HANDLING OF CONNECTOR

(1)
(2)
(3)
(4)
(5)
WRONG
NOTICE:
S
As a water proof connector cannot be checked from
the backside, check by connecting the sub–harness.
S
Do not damage the terminals by moving the inserted
tester needle.
CORRECT
(c) CONNECTOR CHECKING POINTS
D25086
(1)
(2)
Terminal
Deformation
NOTICE:
When testing a gold–plated female terminal, always use a
D25087
gold–plated male terminal.
– HOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMS
When removing the connector with lock, press the
connector in the direction of the engagement and
remove the lock by lightly pressing the lock claw.
When removing the connector, do not hold the har-
ness, but hold the connector.
Before connecting the connector, check that there
is no deformation, damage or missing terminals.
The connector with a lock should be securely con-
nected until it makes a "click" sound.
When checking the connector with a Toyota electri-
cal tester, check it from the backside (harness side)
of the connector using a mini test lead.
Checking when the connector is connected:
By holding the connector, check the inserted condi-
tion and locking efficiency (engaged condition).
Checking when the connector is removed:
Check by lightly pulling the wire harness (missing
terminal, terminal crimping condition, core wire
break).
Check visually for any rust, metal particles, water
and bent terminals (rust, mixing of foreign object,
terminal deformation).
Author :
01036–08
Date :
33