1986 TOYOTA CAMRY V20 check engine light

Low Oil Pressure Warning
INSPECTION OF PRESSURE WARNING
1. INSPECT WARNING LIGHT OPERATION
(a) Disconnect the connector from the pressure switch
and ground the connector on the wire harness side.
(b) Turn the ignition switch ON, check that t he warning
light lights.
If the warning light does not light, test the bulb.
2. INSPECT PRESSURE SWITCH OPERATION
(a) Disconnect the connector from the switch.
(b) Check that there is continuity between terminal and
ground with the engine stopped.
(c) Check that there is no continuity between terminal
and ground with the engine running.
HINT: Oil pressure should be over 0.3 kg/cm2 (4.3 psi, 29
kPa).
If operation is not as specified, replace the switch.If resistance value is not as specified, replace the send-
er gauge. 3. MEASURE SENDER GAUGE RESISTANCE
Measure the resistance between terminal and ground.
ater temperature oC
(OF)Resistance (
)
N i ppo nde nso Yazaki
± BODY ELECTRICAL SYSTEMCombination MeterBE±39

Diagnosis System
OUTPUT OF DIAGNOSTIC CODES
1. READ TYPE A CODE
(a) Turn the ignition switch on.
(b) Turn the set/coast switch on, and keep it on.
(e) Push the main switch on.
(d) Turn the set/coast switch oft.
(e) Meet the conditions listed below.
(f) Read the diagnostic code on the main switch indica-
tor.
HINT:
wTo save time performing the next test, do not turn off the
ignition switch when steps (a) ± (f) are completed.
wChecking of No. 4 code is done with the vehicle jacked
up and the engine idling.
wIf there is no indication code, perform diagnosis ±and
inspection. (See page Be±74)
Each cancel switch on (Stop light switch,
Parking brake switch, Clutch switch,
Neutral start switch)Each cancel switch circuit is
normal.Set/coast switch circuit is
normal.
Vacuum switch circuit is
normal.Resume/ accel switch
circuit is normal.
Speed sensor circuit is
normal.Speed sensor circuit is
normal.
Drive 30 km/h 0 9 mph) or belowDrive 40 km/h (25 mph) or overResume/accel switch on Set/coast switch on
Vacuum switch on
Indication code ConditionsDiagnosisNo.
± BODY ELECTRICAL SYSTEMCruise Control SystemBE±71

CHECKS AND ADJUSTMENTS
CHECK AND ADJUSTMENT OF BRAKE
PEDAL
1. CHECK THAT PEDAL HEIGHT IS CORRECT
Pedal height from asphalt sheet:
177.5 ± 187.5 mm (6.988 ± 7.382 in.)
If incorrect, adjust the pedal height.
2. IF NECESSARY, ADJUST PEDAL HEIGHT
(a) If necessary, remove the instrument lower finish pan-
el and air duct.
(b) Loosen the stop light switch lock nut.
(e) Sufficiently loosen the stop light switch.
(d) Loosen the push rod lock nut.
(e) Adjust the pedal height by turning the pedal push
rod.
(f) Return the stop light switch until it lightly contacts the
pedal stopper.
(g) Tighten the two lock nuts.
(h) Check that the stop lights light when the brake pedal
depressed.
(i) After adjusting the pedal height, check and adjust
the pedal freeplay.
3. CHECK THAT PEDAL FREEPLAY IS CORRECT
(a) Stop the engine and depress the brake pedal sever-
al times until there is no more vacuum left in the
booster.
(b) Push in the pedal until the beginning of resistance
is felt. Measure the distance, as shown.
Pedal freeplay: 3 ±6 mm (0.12 ± 0.24 in.)
HINT: The freeplay to the first resistance is due to the play
between the clevis and pin. And it is 1 3 mm (0.04±
0.12 in.) on the pedal.
4. IF NECESSARY, ADJUST PEDAL FREEPLAY
(a) If incorrect, adjust the pedal freeplay by turning the
pedal push rod.
(b) Start the engine and confirm that pedal freepiay ex-
ists.
(e) After adjusting the pedal freeplay, check the pedal
height.
(d) Install the air duct and instrument lower finish panel.
± BRAKE SYSTEMChecks and AdjustmentsBR±6

OPERATIONAL TEST OF BRAKE
BOOSTER
HINT: If there is leakage or lack of vacuum, repair before
testing. If available, use a brake booster tester to check the
booster operating condition.
1. OPERATING CHECK
(a) Depress the brake pedal several times with the en-
gine stopped, and check that is no change in the ped-
al reserve distance.
(b) Depress the brake pedal and start the engine. If the
pedal goes down slightly, operation is normal.
2. AIR TIGHTNESS CHECK
(a) Start the engine and stop it after one or two minutes.
Depress the brake pedal several times slowly. If the
pedal goes down furtherest the first time, but gradual-
ly rises after the second or third time, the booster is air
tight.
(b) Depress the brake pedal while the engine is running,
and stop it with the pedal depressed. If there is no
change in pedal reserve travel after holding the pedal
for thirty seconds, the booster is air tight.
BLEEDING OF BRAKE SYSTEM
HINT: If any work is done on the brake system or if air is sus-
pected in the brake lines, bleed the system of air.
NOTICE: Do not let brake fluid remain on a painted surface.
Wash it off immediately.
1. FILL BRAKE RESERVOIR WITH BRAKE FLUID
Check the fluid level in the reservoir. If necessary, add
brake fluid. 5. CHECK THAT PEDAL RESERVE DISTANCE IS
CORRECT
Release the parking brake. With engine running, depress
the pedal and measure the pedal reserve distance, as
shown.
Pedal reserve distance from asphalt sheet at 50 kg
(110.2 1b): More than 85 mm, (3.35 in.)
If incorrect, troubleshoot the brake system.
2. BLEED MASTER CYLINDER
HINT: If the master cylinder was disassembled or if the res-
ervoir becomes empty, bleed the air from the master cylin-
der.
(a) Disconnect the brake tubes from the master cylinder.
(b) Depress the brake pedal and hold it.
± BRAKE SYSTEMChecks and AdjustmentsBR±7

INITIAL CHECK
CHECK ACTUATOR OPERATION NOISE
(a) Start the engine and drive at a speed over 6 km/h
(4 mph).
(b) Check that the actuator operation noise is heard.
HINT: A initial check is carried out once each time after the
engine has been started and initial speed exceeds 6
km/h (4 mph). The respective functions, in order, of the 3
position solenoid and pump motor in the actuator are
checked. However, if the brake pedal is depressed, the ini-
tial check is not carried out, but is started after the pedal
has been released.
INSPECTION OF DIAGNOSIS SYSTEM
1. INSPECT BATTERY VOLTAGE
Inspect that the battery voltage is about 12 V.
2. CHECK THAT WARNING LIGHT TURNS ON
(a) Turn the ignition switch on.
(b) Check that the ºANTILOCKº warning light turns on for
3 seconds.
If not, inspect and repair or replace the fuse, bulb and wire
harness.
Diagnosis System
DESCRIPTION
If a malfunction occurs, the system will identify the prob-
lem and the computer will store the codes for the trouble
items.
At the same time, the system informs the driver of a mal-
function via the ºANTILOCKº warning light in the combina-
tion meter.
By turning on the ignition switch and disconnecting the
check connector, the trouble can be identified by the
number of blinks (diagnostic code) of the warning light.
In the event of two codes, that having the smallest num-
ber (code) will be identified first.
HINT: The warning light does not show the diagnostic
codes while the vehicle is running.
± BRAKE SYSTEMAnti±lock Brake System (A.B.S.)BR±67

Speed Sensor Diagnosis System
PRECAUTION
While checking the speed sensor diagnosis system,
A.B.S. does not work and brake system works as normal
brake system.
INSPECTION OF DIAGNOSIS SYSTEM
1. INSPECT BATTERY VOLTAGE
Inspect that the battery voltage is about 12 V.
2. CHECK THAT WARNING LIGHT TURNS ON
(a) Turn the ignition switch on.
(b) Check that the ºANTILOCKº warning light turns on for
3 seconds.
If not, inspect and repair or replace the fuse, bulb and wire
harness.
(c) Check that the ºANTILOCKº warning light turns off.
(d) Turn the ignition switch off.
3. PERFORM FOLLOWING STEPS
(2WD)
(a) Disconnect the check connector from the actuator.
(b) Pull the parking brake lever up, and start the engine.
(d) Check that the warning light blinks about 4 times ev-
ery 1 second as shown. (c) Depress the brake pedal 4 to 6 times within 2
seconds.
± BRAKE SYSTEMAnti±lock Brake System (A.B.S.)BR±77

4. INSPECT SENSOR SIGNAL LEVEL
Drive the vehicle straight ahead at about 4 ±6 km/h (2.5
± 3.7 mph), and check that the warning light turns on after
a 1 second pause.
If the warning light turns on without blinking when the ve-
hicle speed is not within the specified speed range above,
stop the vehicle and read the diagnostic code, and repair
the malfunctioning parts.
(See step S on page BR±79)
HINT: If the warning light turns on while the vehicle speed
is within specified speed range above, the check is com-
pleted. And when the vehicle speed exceeds 6 km/h
(3.7mph), the warning light will blink again. In this condi-
tion, speed sensors are OK.
NOTICE: While the warning light is off, do not give any
shocks to vehicle such as acceleration, deceleration, brak-
ing, shift change, steering or shocks from the road condi-
tion.
(4WD)
(a) Remove the rubber cap from the Ts connector lo-
cated in front of the actuator.
(b) Connect the terminals of Ts connector.
(c) Pull the parking brake lever up, and start the engine.
NOTICE: Do not depress the brake pedal.
(d) Check that the warning light blinks about 4 times ev-
ery 1 second as shown.
± BRAKE SYSTEMAnti±lock Brake System (A.B.S.)BR±78

Deceleration Sensor Operation
Diagnosis System (For 4WD)
PRECAUTION
While checking the deceleration sensor diagnosis
system, A.B.S. does not work and brake system works as
normal brake system.
INSPECTION OF DIAGNOSIS SYSTEM
1. INSPECT BATTERY VOLTAGE
Inspect that the battery voltage is about 12 V.
2. CHECK THAT WARNING LIGHT TURNS ON
(a) Turn the ignition switch on.
(b) Check that the ºANTILOCKº warning light turns on for
3 seconds.
If not, inspect and repair or replace the fuse, bulb and wire
harness.
(e) Check that the ºANTILOCKº warning light turns off.
(d) Turn the ignition switch off.
3. PERFORM FOLLOWING STEPS
(a) Remove the rubber cap from the Ts connector lo-
cated in front of the actuator.
(b) Connect the terminals of Ts connector.
(c) Pull the parking brake lever up and depress the brake
pedal, and start the engine.
4. INSPECT SENSOR DETECTION POINT
(a) Jack up the rear side of the vehicle slowly as shown.
HINT: When measuring the height, measure at the center
of the rear bumper lower edge.
(b) Check that the warning light does not turn on.
(c) Jack down the vehicle and check that the warning
light blinking. (d) Check that the warning light blinks about 1 time every
1 second as shown.
If the warning light does not blink, inspect the parking brake
switch, stop light switch, Ts connector, deceleration sensor
installation and computer.
± BRAKE SYSTEMAnti±lock Brake System (A.B.S.)BR±82