2001 TOYOTA AVALON light

AC2GH-01
I12960
I12956
I12969
Instrument Panel Register
Bracket
Radio
Bucket seat type:
Flash Receptacle
Bracket
A/C Control AssemblyBench seat type:
Instrument Lower Cover
A/C Amplifier
A/C Control Panel
Bulb (LCD Lighting)Bulb (Panel Lighting) Bulb (Panel Lighting)
HolderA/C Control Panel Case
- AIR CONDITIONINGAIR CONDITIONING CONTROL ASSEMBLY (Auto A/C)
AC-73
1995 Author
: Date
:
2001 AVALON (RM808U)
AIR CONDITIONING CONTROL ASSEMBLY (Auto A/C)
COMPONENTS

AC2GJ-01
I12984
3931: Bulb
- AIR CONDITIONINGAIR CONDITIONING CONTROL ASSEMBLY (Auto A/C)
AC-75
1997 Author
: Date
:
2001 AVALON (RM808U)
INSPECTION
1. INSPECT ILLUMINATION OPERATION
Connect the positive (+) lead from the battery to terminal 31 and
the negative (-) lead to terminal 39, then check that the illumina-
tion lights up.
If there is bulb not light up, replace the bulb only. If all bulbs do
not light up, replace the A/C control panel.
2. INSPECT A/C CONTROL AMPLIFIER CIRCUIT
(See page DI-759)

I01386
AC-4
- AIR CONDITIONINGAIR CONDITIONING SYSTEM
1926 Author
: Date
:
2001 AVALON (RM808U)
2. INSPECT REFRIGERANT PRESSURE WITH MAN-
IFOLD GAUGE SET
This is a method in which the trouble is located by using a man-
ifold gauge set. Read the manifold gauge pressure when the
these conditions are established.
Test conditions:
Temperature at the air inlet with the switch set
at RECIRC is 30 - 35 °C (86 - 95 °F)
Engine running at 1500 rpm
Blower speed control switch at ºHIº position
Temperature control dial on ºCOOLº position
HINT:
It should be noted that the gauge indications may vary slightly
due to ambient temperature conditions.
(1) Normally functioning refrigeration system.
Gauge reading:
Low pressure side:
0.15 - 0.25 MPa (1.5 - 2.5 kgf/cm
2)
High pressure side:
1.37 - 1.57 MPa (14 - 16 kgf/cm
2)

AC2KB-01
I12289
I03838
SST
I03839
SST
Push
SSTPull
Release
Lever AC-28
- AIR CONDITIONINGAIR CONDITIONING UNIT
1950 Author
: Date
:
2001 AVALON (RM808U)
REMOVAL
1. DISCHARGE REFRIGERANT FROM REFRIGERATION
SYSTEM
HINT:
At the time of installation, please refer to the following item.
Evacuate air from refrigeration system.
Charge system with refrigerant and inspect for leakage of refrig-
erant.
Specified amount: 600 ± 50 g (21.16 ± 1.76 oz.)
2. DRAIN ENGINE COOLANT FROM RADIATOR
HINT:
It is not necessary to drain out all coolant.
3. DISCONNECT LIQUID AND SUCTION TUBES
(a) Using SST, remove the 2 piping clamps.
SST 09870-00015 (Suction tube)
09870-00025 (Liquid tube)
(1) Insert SST to piping clamp.
HINT:
Confirm the direction of the piping clamp claw and SST using
the illustration showing on the caution label.
(2) Push down SST and release the clamp lock.
NOTICE:
Be careful not to deform the tubes, when pushing SST.
(3) Pull SST slightly and push the release lever, then re-
move the piping clamp with SST.
(4) Remove the piping clamp from SST.
(b) Disconnect the both tubes.

I12971
91 : Bulb
AC2GQ-01
I07872
I12972
11
10
I12973
11
10
1
- AIR CONDITIONINGHEATER CONTROL ASSEMBLY (Manual A/C)
AC-83
2005 Author
: Date
:
2001 AVALON (RM808U)
INSPECTION
1. INSPECT ILLUMINATION OPERATION
Connect the positive (+) lead from the battery to terminal 1 and
negative (-) lead to terminal 9 then check that the illuminations
lights up.
If operation is not as specified, check the faulty bulb.
2. INSPECT BULB
Apply the tester as shown in the illustration to the test for conti-
nuity.
If continuity exists, replace the heater control.
If no continuity exists, replace the bulb.
3. INSPECT A/C INDICATOR OPERATION
(a) Connect the positive (+) lead from the battery to terminal
10 and the negative (-) lead to terminal 11.
(b) Push the A/C button in and then check that the indicator
lights up.
If operation is not as specified, replace the switch.
4. INSPECT DIMMING OPERATION
(a) Connect the positive (+) lead from the battery to terminal
10 and the negative (-) lead to terminal 11 while press the
switch.
(b) Connect the positive (+) lead from the battery to terminal
1 and then check that the indicator dims.
If operation is not as specified, replace the switch.

I12974
I12975
10 8
I12976
10 8
1
I12977
I12978
10 7 AC-84
- AIR CONDITIONINGHEATER CONTROL ASSEMBLY (Manual A/C)
2006 Author
: Date
:
2001 AVALON (RM808U)
5. INSPECT A/C SWITCH CONTINUITY
Condition / CircuitTester connectionSpecified condition
OFF5 - 6No continuity
ON5 - 6Continuity
If operation is not as specified, replace the switch circuit board.
6. INSPECT RECIRC INDICATOR OPERATION
(a) Connect the positive (+) lead from the battery to terminal
10 and the negative (-) lead to terminal 8.
(b) Push the REC button in and then check that the indicator
lights up.
If operation is not as specified, replace the switch circuit board.
7. INSPECT DIMMING OPERATION
(a) Connect the positive (+) lead from the battery to terminal
10 and the negative (-) lead to terminal 8 while press the
switch.
(b) Connect the positive (+) lead from the battery to terminal
4 and then check that the indicator dims.
If operation is not as specified, replace the switch circuit board.
8. INSPECT RECIRC SWITCH CONTINUITY
Condition / CircuitTester connectionSpecified condition
OFF18 - 8No continuity
ON18 - 8Continuity
If operation is not as specified, replace the switch circuit board.
9. INSPECT FRESH INDICATOR OPERATION
(a) Connect the positive (+) lead from the battery to terminal
10 and the negative (-) lead to terminal 8.
(b) Push the FRS button in and then check that the indicator
lights up.
If operation is not as specified, replace the switch circuit board.

I12979
10 8
1
I12977
I12980
10 8
4
I12981
10 8
41
I12982
- AIR CONDITIONINGHEATER CONTROL ASSEMBLY (Manual A/C)
AC-85
2007 Author
: Date
:
2001 AVALON (RM808U)
10. INSPECT DIMMING OPERATION
(a) Connect the positive (+) lead from the battery to terminal
10 and the negative (-) lead to terminal 8 while press the
switch.
(b) Connect the positive (+) lead from the battery to terminal
1 and then check that the indicator dims.
If operation is not as specified, replace the switch circuit board.
11. INSPECT FRESH SWITCH CONTINUITY
Condition / CircuitTester connectionSpecified condition
OFF17 - 8No continuity
ON17 - 8Continuity
If operation is not as specified, replace the switch circuit board.
12. INSPECT REAR DEFOGGER INDICATOR OPERA-
TION
(a) Connect the positive (+) lead from the battery to terminal
10, 4 and negative (-) lead to terminal 8.
(b) Push the RDEF button in and then check that the indicator
lights up.
If operation is not as specified, replace the switch circuit board.
13. INSPECT DIMMING OPERATION
(a) Connect the positive (+) lead from the battery to terminal
10, 4 and negative (-) lead to terminal 8 while press the
switch.
(b) Connect the positive (+) lead from the battery to terminal
1 and then check that the indicator dims.
If operation is not as specified, replace the switch circuit board.
14. INSPECT REAR DEFOGGER SWITCH CONTINUITY
Condition / CircuitTester connectionSpecified condition
OFF4 - 8No continuity
ON4 - 8Continuity
If operation is not as specified, replace the switch circuit board.

AC-16
- AIR CONDITIONINGTROUBLESHOOTING (Manual A/C)
1938 Author
: Date
:
2001 AVALON (RM808U) Blinking of A/C indicator
1. Compressor
2. Drive belt
3. Compressor lock sensor
4. A/C amplifierAC-42
AC-17
AC-42
AC-77
Brightness does not change when light control switch is turned1. Headlight and taillight system
2. Heater control assemblyBE-19
AC-80