1986 TOYOTA CAMRY V20 ac relay

5. REMOVE OIL STRAINER, UPPER VALVE BODY COVER
GASKETS AND PLATE
(a) Remove the oil strainer on the gasket.
(b) Remove the two gaskets and plate from the upper
valve body. 3. DISASSEMBLE So ACCUMULATOR ASSEMBLY
(a) Applying compressed air to the cylinder hole, remove
the piston and spring.
(b) Remove the two O±ring from the piston. 2. REMOVE So ACCUMULATOR ASSEMBLY
(a) Remove the three bolts.
(b) Remove the B0 accumulator assembly.
(c) Remove the check ball on No. 1 plate.
4. REMOVE UPPER VALVE BODY COVER
Remove the eleven bolts and upper valve body cover.
6. REMOVE LOCK±UP RELAY VALVE SLEEVE STOPPER
± AUTOMATIC TRANSAXLEComponent Parts (Valve Body) A540E and A540H)AT±309

HINT: During reassembly please refer to the spring specifications above to help discriminate the
different springs.
SECTIONAL VIEW OF VALVE BODY SPECIFICATIONS OF VALVE BODY SPRINGS
No. 1 accumulator control valveCoil outer diameter
mm (in.)
Second coast modulator valve
B1 orifice control valve
Throttle modulator valveFree length mm (in.)
Lock±up relay valveTotal No. of coils
Down±shift plug
Cut±back valve Throttle valveColor
Spring
± AUTOMATIC TRANSAXLEComponent Parts (Valve Body A540E and A540H)AT±313

5. INSTALL UPPER VALVE BODY COVER GASKETS,
PLATE AND THROTTLE MODULATOR OIL STRAINER
(a) Position a new gasket and plate and then another new
gasket.
HINT: Both gaskets are same one.
(b) Install the oil strainer onto the gasket.
6. INSTALL UPPER VALVE BODY COVER
(a) Position the upper valve body cover.
(b)) Install and finger tighten the eleven bolts.
HINT: Each bolt length (mm (in.)) is indicated in the fig-
ure.
7. INSTALL AND FINGER TIGHTEN BOLT IN LOWER
VALVE BODY
HINT: Bolt length (mm (in)) is indicated in the figure.
8. INSTALL CHECK BALLS
Install the two check balls into the lower valve body. 4. INSTALL LOCK±UP RELAY VALVE SLEEVE STOPPER
± AUTOMATIC TRANSAXLEComponent Parts (Valve Body A540E and A540H )AT±319

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

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