I30157
I30332
MAX. HOT
MAX. COLD
I30161
MAX. HOT
MAX. COLD
Arm position
Resistance (k
Ω
)
3.4 – 6.2
0.8 – 1.6
I31408
DEF
FACE
B/L
FOOT
FOOT/DEF
55–8
–
HEATER & AIR CONDITIONER
AIR CONDITIONING SYSTEM
2323
Author:
Date:
2002 CAMRY REPAIR MANUAL (RM881U)
3.
AIRMIX DAMPER SERVO SUB–ASSY
(a)
Inspect servomotor operation.
(1)
Connect the positive (+) lead from the battery to ter-
minal 4 and negative (–) lead to terminal 5, then
check that the arm turns to ”COLD” side smoothly.
(2)
Connect the positive (+) lead from the battery to ter-
minal 5 and negative (–) lead to terminal 4, then
check that the arm turns to ”HOT” side smoothly.
If operations are not as specified, replace the air mix servomo-
tor.
(b)
Inspect position sensor resistance.
Measure resistance between terminals at servomotor
arm each position as shown in the chart.
Tester connection
Condition
Specified condition
1 – 2
Constant
4.2 – 7.8 k
Ω
1 – 3
Arm position at ”COLD”
3.4 – 6.2 k
Ω
1 – 3
Arm position at ”HOT”
0.8 – 1.6 k
Ω
If resistance is not as specified, replace the servomotor.
4.
MODE DAMPER SERVO SUB–ASSY
(a)
Inspect servomotor operation.
(b)
Connect the positive (+) lead from the battery to terminal
7 and the negative (–) lead to terminal 8.
(c)
Connect the negative (–) lead from the battery to each ter-
minal, as shown in the chart and check that the shaft ro-
tates at each position, as shown in the illustration.
Connected terminal
Position
1
DEF
2
FOOT/DEF
3
FOOT
5
B/L
6
FACE
If operation is not as specified, replace the servomotor.