-
DIAGNOSTICS
AIR CONDITIONING SYSTEM
DI-693
847
Author:
Date:
2001 SIENNA (RM787U)
37
(
Rear air mix damper position sensor cir-
cuit
Rear air mix damper position sensor
A/C control assembly
Harness or connector between rear air mix damper position
sensor and A/C control assembly
-
41
(
Front air mix damper control servomotor
circuit
Front air mix damper control servomotor
Front air mix damper position sensor
Harness and connector between A/C control assembly front
and air mix position sensor
Harness and connector between A/C control assembly and
front air mix damper control servomotor
A/C control assembly
(15 secs. or more)
42
(
Air inlet damper control servomotor cir-
cuit
Air mix damper control servomotor
Air mix damper position sensor
Harness and connector between A/C control assembly and
air mix position sensor
Harness and connector between A/C control assembly and
mix damper control servomotor
A/C control assembly
(15 secs. or more)
47
(
Rear Air mix damper control servomotor
circuit
Air mix damper control servomotor
Air mix damper position sensor
Harness and connector between A/C control assembly and
air mix position sensor
Harness and connector between A/C control assembly and
mix damper control servomotor
A/C control assembly
-
HINT:
*1
If the room temp. is approx. -20
°
C (-4
°
F) or lower, DTC 11 may be light up even though the system
is normal.
*2
If the ambient temperature is approx. -50
°
C (-58
°
F) or lower, a DTC may be output even though
the system is normal.
*
3
If the check is being performed in a dark place, DTC 11 (solar sensor circuit abnormal) could be dis-
played. In this case, perform DTC check again while shining a light, such as an inspection light, on the
solar sensor. If DTC 11 is still displayed, there could be trouble in the solar sensor circuit.
*
4
Compressor lock (DTC 22) is indicated only for a current malfunction (See page
To confirm DTC 22, preform the following steps.
(1)
With the engine ON, enter the DTC check mode.
(2)
Press the R/F switch to enter actuator check mode, and set the operation to Step No. 3.
(3)
Press the AUTO switch to return to DTC check mode.
(4)
The DTC is displayed after approx. 3 secs.
Содержание RM787U
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