I21007
”COOL”
1
”WARM”
3
2
-
DIAGNOSTICS
AIR CONDITIONING SYSTEM
DI-729
883
Author:
Date:
2001 SIENNA (RM787U)
2
Check front air mix damper position sensor.
PREPARATION:
Remove air mix servomotor (See page
).
CHECK:
Measure resistance between terminals 1 and 2 of front air mix
damper control servomotor assembly connector.
OK:
Resistance : 4.2 - 7.8 k
Ω
CHECK:
While operating front air mix damper control servomotor, follow-
ing the procedure, measure resistance between terminals 1
and 3 of front air mix damper control servomotor assembly con-
nector.
OK:
Position
Resistance
Max. cool
3.6 - 6.8 k
Ω
Max. warm
0.5 - 1.1 k
Ω
HINT:
As the front air mix damper control servomotor moves from cool
side to warm side, the resistance decreases.
NG
Replace front air mix damper control servomo-
tor assembly.
OK
3
Check harness and connector between A/C control assembly and front air mix
damper control servomotor assembly (See page
).
NG
Repair or replace harness or connector.
OK
Check and replace A/C control assembly.
Содержание RM787U
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