Body electrical system.pdf

BE-1

BODY ELECTRICAL SYSTEM

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BODY ELECTRICAL SYSTEM GENERAL INFORMATION

GENERAL INFORMATION
CONNECTOR
1. PIN NUMBER OF FEMALE CONNECTOR Numbered in order from upper left to lower right. 2. PIN NUMBER OF MALE CONNECTOR Numbered in order from upper right to lower left. HINT: When connectors with different or the same number of terminals are used with the same parts, each connectorname (letter of the alphabet) and pin number is specified.

3. DISTINCTION OF MALE AND FEMALE CONNECTORS Male and female connectors are distinguished by shape of their internal pins. (a) All connectors are shown from the open end, and the lock is on top. (b) To pull apart the connectors, pull on the connector itself, not the wires. HINT: Check to see what kind of connector you aredisconnecting before pulling a apart.

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BODY ELECTRICAL SYSTEM GENERAL INFORMATION

HOW TO REPLACE TERMINAL (With Terminal Retainer Type)
HINT: To remove the terminal for this type of connector, please construct and use the special tool or like object shown on the left.

1. DISCONNECT CONNECTOR Disconnect the connector according to the instructions on BE-2 . 2. DISCONNECT TERMINAL FROM CONNECTOR(a) Using the special tool, raise the retainer up to the temporary lock position. HINT: The needle insertion position varies according to the connector’s shape (number of terminals, etc.), so check the position before inserting it. (b) Using the special tool, release the locking lug and pull the terminal out from rear.

3. INSTALL TERMINAL TO CONNECTOR (a) Insert the terminal. HINT: (1) Makesure the terminal is positioned correctly. (2) Insert the terminal until the locking lug locks firmly. (3) Insert the terminal with retainer in the temporary lock position.

(b) Push the retainer in as far as the full lock position. 4. CONNECT CONNECTOR

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BODY ELECTRICAL SYSTEM GENERAL INFORMATION

FUSE REPLACEMENT
HINT: If replacing the fuse be sure to replace it with a fuse with anequal amperage rating.

NOTICE: • Turn off all electrical components and the ignition switch before replacing a fuse or fusible link. Do not exceed the fuse or fusible link amperage rating.

• Always use a fuse puller for removing and inserting a fuse. Remove and insert straight in and out without twisting. Twisting could force open the terminals too much, resulting in a bad connection. If afuse or fusible link continues to blow, a short circuit is indicated. The system must be checked by a qualified technician.

VOLTAGE CHECK
(a) Establish conditions in which voltage is present at the check point. Example: (A)-Ignition SW on (B)-Ignition SW and SW 1 on (C)-Ignition SW, SW 1 and Relay on (SW 2 off) (b) Using a voltmeter, connect the negative (-) lead to a good ground point ornegative (-) battery terminal and the positive (+) lead to the connector or component terminal. This check can be done with a test bulb instead of a voltmeter.

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BODY ELECTRICAL SYSTEM GENERAL INFORMATION

CONTINUITY AND RESISTANCE CHECK
(a) Disconnect the battery terminal or wire so there is no voltage between the check points. (b) Contact the two leads of an ohmmeter to each of thecheck points.

If the circuit has diodes, reverse the two leads and check again. When contacting the negative (-) lead to the diode positive (+) side and the positive (+) lead to the negative (-) side, there should be continuity. When contacting the two leads in reverse, there should be no continuity. HINT: Specifications may vary depending on the type of tester, so refer to the tester’sinstruction manual before performing the inspection. Check LED (Light Emitting Diode) in the same manner as that for diodes. HINT: • Use a tester with a power source of 3 V or greater to overcome the circuit resistance. • If a suitable tester is not available, apply battery voltage and check that the LED lights up.

(c) Use a volt/ohmmeter with high impedance (10 k/V minimum) for troubleshooting of the...