1986 TOYOTA CAMRY V20 electrical

GENERAL INFORMATION
WIRING COLOR CODE
Wire colors are indicated by an alphabetical code.
B =Black L =Blue R =Red
BR=Brown LG=Light Green V =Violet
G =Green O =Orange W=White
GR=Gray P =Pink Y =Yellow
The first letter indicates the basic wire color and the sec±
ond letter indicates the color of the stripe.
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.
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 it-
self, not the wires.
HINT: Check the type of connector before disconnecting.
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RESET CIRCUIT BREAKER
1. REMOVE CIRCUIT BREAKER
(a) Disconnect the negative (±) cable from the battery.
(b) Remove the circuit breaker.
2. RESET CIRCUIT BREAKER
(a) Insert the needle into the reset hole and push it.
3. INSTALL CIRCUIT BREAKER
(a) Install the circuit breaker.
(b) Connect the negative (±) cable to the battery.
HINT: If a circuit breaker continues to cut out, a short circuit
is indicated. Have the system checked by a qualified tec
nician.
REPLACEMENT OF FUSE AND
FUSIBLE LINK
HINT: If replacing the fuse or fusible link, be sure to
replace it with a fuse or fusible link with an equal amperage
rating.(b) Using an ohmmeter, check that there is continuity be-
tween both terminals of the circuit breaker.
If continuity is not as specified, replace the circuit breaker.
HINT: If replacing the circuit breaker, be sure to replace
it with a breaker with an equal amperage, rating.
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NOTICE:
1. 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.
2. 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 a fuse or fusible link continues to blow, a short circuit is
indicated. The system must be checked by a qualified tech-
nician.
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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's instruction manual before per-
forming the inspection.
Check LED (Light Emitting Diode) in the same manner as
that for diodes.
HINT:
wUse a tester with a power source of 3 V or greater to over-
come the circuit resistance.
wIf a suitable tester is not available, apply voltage and check
that the LED lights up.
CHECK FOR VOLTAGE
(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 or negative (±) battery terminal
and the positive (+) lead to the connector or compo-
nent terminal. This check can be done with a test
bulb instead of a voltmeter.
CHECK FOR CONTINUITY AND
RESISTANCE
(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
the check points.
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CHECK FOR SHORT CIRCUIT
(a) Remove the blown fuse and eliminate all toads from
the fuse.
(b) Connect a test bulb in place of the fuse.
(e) Establish conditions in which the test bulb comes on.
Example:
(A) ± Ignition SW on
(B) ± Ignition SW and SW 1 on
(C) ± Ignition SW, SW 1 and Relay on (Connect the
Relay) and SW 2 oft (or Disconnect SW 2)
(d) Disconnect and reconnect the connectors while
watching the test bulb.
The short lies between the connector where the test
bulb stays lit and the connector where the bulb goes
out.
(e) Find the exact location of the short by lightly shaking
the problem wire along the body. (c) Use a volt/ohmmeter with high impedance (10 k

/V
minimum) for troubleshooting of the electrical circuit.
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LOCATION OF SWITCHES AND
RELAYS
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LOCATION OF SWITCHES AND
RELAYS (Cont'd)
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LOCATION OF SWITCHES AND
RELAYS (Cont'd)
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