1986 TOYOTA CAMRY V20 Service Information

check oil gas type adding oil load capacity key battery fog light bulb

Page 1073 of 2389

TOYOTA CAMRY V20 1986 Service Information Check that there is voltage between ECU terminal +B or +131
and body ground. (IG SW ON)
No voltage between ECU terminals THG and
E2. (IG SW ON)
Check wiring between ECU terminal E1 and body ground.
Ch

Page 1074 of 2389

TOYOTA CAMRY V20 1986 Service Information EFI SYSTEM CHECK PROCEDURE
(2VZ±FE)
PREPARATION
(a) Disconnect the connectors from the ECU.
(b) Remove the locks as shown in the illustration so that the
tester probe(s) can easily come in.
NOTICE: P

EFI SYSTEM CHECK PROCEDURE
(2VZ±FE)
PREPARATION
(a) Disconnect the connectors from the ECU.
(b) Remove the locks as shown in the illustration so that the
tester probe(s) can easily come in.
NOTICE: Pay attention to sections ºAº and ºBº in the il-
lustration which can be easily broken.
(e) Reconnect the connectors to the ECU.
HINT:
wPerform all voltage measurements with the connectors con-
nected.
wVerify that the battery voltage is 11 V or more when the igni-
tion switch is in ºONº position.
Using a voltmeter with high impedance (10 k
/V mini±
mum), measure the voltage at each terminal of the wiring
connectors.
AIR FLOW METER
THROTTLE POSITION SENSOR
Terminals of ECU
No. 1 SPEED SENSOR (Meter side)
No. 2 SPEED SENSOR (AlT side)
THROTTLE POSITION SENSOR FUEL PRESSURE CONTROL VSV
THROTTLE POSITION SENSORCRUISE CONTROL COMPUTER
* 1 w/ ECT
*2 CALIF. only KNOCK CONTROL SENSOR PATTERN SELECT SWITCH
OXYGEN SENSOR HEATER
NEUTRAL START SWITCHEGR GAS TEMP. SENSOR INJECTOR (No. 2 and 3)INJECTOR (No. 4 and 5)
SIFT POSITION SWITCH.
ISC MOTOR NO. 3 COILINJECTOR (No. 1 and 6i
ISC MOTOR NO. 1 COIL
ISC MOTOR NO. 4 COILSIFT POSITION SWITCH ISC MOTOR NO. 2 COILWATER TEMP. SENSORSUB±OXYGEN SENSOR
SIFT POSITION SWITCH COLD START INJECTOR
EFI MAIN RELAY (COIL)
SIFT POSITION SWITCHSUB±OXYGEN SENSOR CHECK CONNECTOR
COMPUTER GROUND
CHECK CONNECTORCHECK CONNECTOR CHECK CONNECTOR
AIR TEMP. SENSORA/C COMPRESSOR
SENSOR GROUNDTerminal Name
OXYGEN SENSOROD MAIN SWITCH
STARTER SWITCHIGNITION SWITCH Terminal Name
AIR FLOW METERTerminal Name
POWER GROUND
POWER GROUND
WARNING LIGHT
EFI MAIN RELAY BRAKE SWITCH
EFt MAIN RELAY ECT SOLENOID
ECT SOLENOIDA/C AMPLIFIER
ECT SOLENOIDDISTRIBUTOR
DISTRIBUTOR DISTRIBUTOR
DISTRIBUTOR
TEMS ECU
TEMS ECU
TEMS ECU Symbol Symbol Symbol
BATTERY IGNITER
IGNITER
*2NSW
*1OD2
No. 30 No. 10
No. 20
*1PWR
*2OX2
M±REL
*1OD 1
*2CHK
*2THGIG SW
*1SP2
BATT
*1SL
*1 DG
1S1THW
*1S2
*1BK
ISC4 1SC2 ISC1
ISC3VTAOX1
ACTS TJSP1
THA
STAKNK EO2 E01
IGT
*1R A/C
EPU
1
L
IGF
± EFI SYSTEMTroubleshooting with Volt OhmmeterFI±50

Page 1075 of 2389

TOYOTA CAMRY V20 1986 Service Information No trouble (ºCHECKº engine warning light off) and
engine running
Voltage at ECU Wiring Connectors
Coolant temp. 80°C (176°F) Measuring plate fully closed
Intake air temp. 20°C (68°F) Measuring p

Page 1076 of 2389

TOYOTA CAMRY V20 1986 Service Information Check that there is voltage between ECU terminal BATT and body
ground.
Check wiring between ECU terminal E1 and body ground.
Check wiring between ECU terminal and
battery.There is no voltage between E

Page 1077 of 2389

TOYOTA CAMRY V20 1986 Service Information Check that there is voltage between ECU terminal M±REL and body
ground. (IG SW ON)Check that there is voltage between ECU terminal IG SW and body
ground. (IG SW ON).
There is no voltage between ECU t

Page 1078 of 2389

TOYOTA CAMRY V20 1986 Service Information Check that there is voltage between ECU terminal +B (+B1)
and body ground. (IG SW ON) There is no voltage between ECU terminals +B (+B1) and
E1. (IG SW ON)
Check wiring between ECU terminal E1 and bod

Page 1079 of 2389

Page 1080 of 2389

TOYOTA CAMRY V20 1986 Service Information Check that there is voltage between ECU terminal VC and E2.
(IG SW ON) Check that there is voltage between ECU terminal +B (+B1)
and body ground. (IG SW ON)
There is no specified voltage at ECU termin

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