light TOYOTA CAMRY V20 1986 Service Information

BODY DIMENSIONS
ENGINE COMPARTMENT
Front crossmember bumper installation nut Front side member bumper installation hole
Front side member standard hole Front spring support inner hole
Cowl top panel standard hole Cowl top panel center mark
Tube clamp installation nut Front fender installation nut
Headlight installation hole Front fender installation nut
Fender installation nut
Name
± BODYBody DimensionsBO±76

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.
± BODY ELECTRICAL SYSTEMGeneral informationBE±2

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.
± BODY ELECTRICAL SYSTEMGeneral InformationBE±5

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.
± BODY ELECTRICAL SYSTEMGeneral InformationBE±6

Fuses
1. HEAD±HI (RH) 15A (CANADA)
2. HEAD±HI (LH) 15A (CANADA)
3. DOME 20A
4. ± ±
5. HEAD (RH) 15A (USA)
HEAD±LO (RH) 15A (CANADA)
6. CHARGE 7.5A
7. ER 15A
8. HAZ.HORN 15A
9. HEAD (LH) 15A (USA)
HEAD±LO (H) 15A (CANADA)Relays
A. A/C FAN No.3 Relay
B. A/C MAGNET CLUTCH Relay
(USA)
DIMMER Relay (CANADA)
C. A/C FAN No.2 Relay
D. FAN No. 1 Relay
E. HEADLIGHT Relay
F. EFI MAIN Relay
G. ENGINE MAIN Relay FUSE AND RELAY BLOCK No±2 (LOCATION: Engine Compartment)
FUSE AND RELAY BLOCKS (Cont'd)
± BODY ELECTRICAL SYSTEMLocation of Switches and RelaysBE±12

Fusible link blown
Headlight control relay faulty
Light control/dimmer switch faulty
Daytime running light relay faulty
(CANADA)
Headlight dimmer relay faulty
(CANADA)
Wiring or ground faulty
Replace fuse and check for short
Replace fusible fink
Check relay
Check switch
Check relay
Repair as necessary TAIL fuse blown
Fusible link blown
Taillight control relay faulty
Light control switch faulty
Daytime running light relay faulty
(CANADA)
Wiring or ground faulty Light control/dimmer switch faulty
Daytime running light relay faulty
(CANADA)
Headlight dimmer relay faulty
(CANADA)
Wiring or ground faultyReplace fusible link
Check relay
Check switch
Check relay
Check relay
Repair as necessary
Replace fuse and check for short
Check flasher
Check switch
Repair as necessary
Replace fuse and check short
Check flasher
Check switch
Repair as necessary HAZ±HORN fuse blown
Turn signal flasher faulty
Hazard warning switch faulty
Wiring or ground faultyCheck switch
Check relay
Check relay
Repair as necessary
Replace fuse and check for short
Adjust or replace switch
Repair as necessary
TURN fuse blown
Turn signal flasher faulty
Turn signal switch faulty
Wiring or ground faulty
LIGHTING
Troubleshooting
STOP fuse blown
Stop light swtich faulty
Wiring or ground faulty Light bulb burned out
Socket, wire or ground faulty
High beam headlights or
headlight flashers do not
operate
Light control rheostat faulty
Wiring or ground faulty Instrument lights do not
light (taillights light)Tail, parking and
license light do not
light
Turn signal switch faulty
Wiring or ground faulty
Hazard warning lights do
not operateReplace bulb
Repair as necessary
Headlights do not light
Check switch
Repair as necessaryCheck rheostat
Repair as necessary Only one light comes
ON
Turn signal does not
flash on one side
Turn signals do not
operateBE±3
BE±3
BE±18
BE±15
BE±25
Adjust or replace switch
Stop light switch faultyBE±3
BE±18
BE±15
BE±25
Stop lights do not light
Stop lights stay on
BE±3
BE±19
BE±19BE±3
BE±19
BE±15
Possible cause
BE±15
BE±25
BE±3
BE±89
RemedyProblem
BE±15BE±23 BE±89BE±25
BE±25Page
± BODY ELECTRICAL SYSTEMLightingBE±14

Light Control Switch, Headlight
Dimmer Switch and Turn Signal
Switch
INSPECTION OF SWITCHES
INSPECT SWITCHES CONTINUITY
Inspect the switch continuity between terminals.
Light control switch
If continuity is not as specified, replace the
switch.
Headlight dimmer switch
Turn signal switch
Switch position
Switch position
Switch positionHigh Beam
Right TurnLow Beam
TerminalTerminal
Terminal
Left Turn
NeutralHEAD
FlashTAIL
OFF
± BODY ELECTRICAL SYSTEMLightingBE±15

2. REMOVE CONTROL LEVER
(a) Remove the bail set plate and the ball.
(b) Remove the control lever with the spring.
3. REMOVE SWITCHES
Remove the switches with the four screws.
4. INSTALL SWITCHES(b) From the open end, insert a miniature screwdriver
between the locking lug and the terminal.
(c) Pry down the locking lug with the screwdriver and
pull the terminal out from the rear.
5. INSTALL CONTROL LEVER
(a) Insert the spring into the control lever and install the
control lever. 1. REMOVE TERMINALS FROM CONNECTOR
(a) Release the four tabs and open the terminal cover.
REPLACEMENT OF SWITCHES
± BODY ELECTRICAL SYSTEMLightingBE±16

7. INSTALL TERMINALS TO CONNECTOR
(a) Push in the terminal until it is securely locked in the
connector lug.
(b) Close the terminal cover. (b) Place the ball on the spring, position the control lever
at HIGH and install the ball set plate with the two
screws.
6. INSPECT SWITCH OPERATION
Insure that the switch operates smoothly.
± BODY ELECTRICAL SYSTEMLightingBE±17

Taillight Control Relay
INSPECTION OF RELAY
1. INSPECT RELAY CONTINUITY
(a) Check that there is continuity between terminals 1
and 3.
(b) Check that there is no continuity between terminals
2 and 4.
(e) Check that there is no continuity between terminals
3 and 4.
If continuity is not as specified, replace the relay.
Headlight Control Relay
INSPECTION OF RELAY
1. INSPECT RELAY CONTINUITY
(a) Check that there is continuity between terminals 1
and 2.
(b) Check that there is no continuity between terminals
3 and 4.
(e) Check that there is no continuity between terminals
1 and 4.
If continuity is not as specified, replace the relay.
2. INSPECT RELAY OPERATION
(a) Apply battery voltage to terminals 1 and 2.
(b) Check that there is continuity between terminals 3
and 4.
(c) Check that there is no continuity between terminals
1 and 4.
If operation is not as specified, replace the relay.
± BODY ELECTRICAL SYSTEMLightingBE±18