electrical TOYOTA CAMRY V20 1986 Service Information

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

LOCATION OF SWITCHES AND
RELAYS
± BODY ELECTRICAL SYSTEMLocation of Switches and RelaysBE±7

LOCATION OF SWITCHES AND
RELAYS (Cont'd)
± BODY ELECTRICAL SYSTEMLocation of Switches and RelaysBE±8

LOCATION OF SWITCHES AND
RELAYS (Cont'd)
± BODY ELECTRICAL SYSTEMLocation of Switches and RelaysBE±9

LOCATION OF SWITCHES AND
RELAYS (Cont'd)
± BODY ELECTRICAL SYSTEMLocation of Switches and RelaysBE±10

Fuses
1. GAUGE
2. ±
3. STOP
4. TAIL
5. CIG
6. RADIO
7. TURN
8. DEF±I/UP
9. ±
10. ENGINE
11. WIPER
12. ECU±IG
13. ±
14. IGN
15. ECU±B FUSE AND RELAY BLOCK No±1 (LOCATION: Driver's Side Kick Panel)7.5A
20A
15A
15A
7.5A
7.5A
10A
10A
20A
15A
7.5A
1 0A
FUSE AND RELAY BLOCKS
± BODY ELECTRICAL SYSTEMLocation of Switches and RelaysBE±11

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

IGNITION SWITCH AND UNLOCK
WARNING SWITCH
INSPECTION OF SWITCHES
INSPECT SWITCHES CONTINUITY
Inspect the switch continuity between terminals.
Ignition switch
If continuity is not as specified, replace the
switch.
Released (Remove ignition key)
Pushed in (Set ignition key)
Unlock warning switch
Switch pin position Switch positionTerminal
Terminal STARTLOCK
ACC
± BODY ELECTRICAL SYSTEMIgnition Switch and Unlock Warning SwitchBE±13

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