I21125
LOCK
A25
15
W-L
IK3
3
1
2
A2
C o m p r e s s o r
Lock Sensor
4
BR-R
12
SG
A/C control assembly
A23
IK5
W-L
BR-R
DI-718
-
DIAGNOSTICS
AIR CONDITIONING SYSTEM
872
Author:
Date:
2001 SIENNA (RM787U)
DTC
22
Compressor Lock Sensor Circuit
CIRCUIT DESCRIPTION
This sensor sends 1 pulse per engine revolution to the A/C control assembly.
If the number ratio of the compressor speed divided by the engine speed is smaller than a predetermined
value, the A/C control assembly turns the compressor OFF. And, the indicator flashes at about 1 second
intervals.
DTC No.
Detection Item
Trouble Area
22
All conditions below are detected for 3 secs. or more
(a) Engine speed : 450 rpm or more
(b) Ratio between engine and compressor speed deviates 20
% or more in comparison to normal operation.
Compressor.
Compressor drive belt.
Compressor lock sensor.
Harness and connector between compressor lock sensor and
A/C control assembly
A/C control assembly
WIRING DIAGRAM
DI3FC-04
Содержание RM787U
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