Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Sienna 1998-2003 Approved FSM 05 acsy cidtc22
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DI-718
DIAGNOSTICS - AIR CONDITIONING SYSTEM
DI3FC-04
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
S Compressor.
All conditions below are detected for 3 secs. or more S Compressor drive belt.
(a) Engine speed : 450 rpm or more S Compressor lock sensor.
22
(b) Ratio between engine and compressor speed deviates 20 S Harness and connector between compressor lock sensor and
% or more in comparison to normal operation. A/C control assembly
S A/C control assembly
WIRING DIAGRAM
A/C control assembly
3 15
W-L W-L
IK3 A25 LOCK
1
A2
Compressor
Lock Sensor
2
4 12
BR-R BR-R
IK5 A23 SG
I21125
2001 SIENNA (RM787U)
Author : Date : 872
DI-719
DIAGNOSTICS - AIR CONDITIONING SYSTEM
INSPECTION PROCEDURE
1 Check compressor.
PREPARATION:
(a) Check compressor drive belt tension (See page AC-17 ).
(b) Check if the compressor does not lock during operation with engine started and blower switch and A/C
switch ON.
NG Adjust drive belt tension or repair compressor.
OK
2 Check compressor lock sensor.
PREPARATION:
2 1 Disconnect compressor connector.
CHECK:
Measure resistance between terminals 1 and 2 of compressor
lock sensor connector.
OK:
Resistance : 65 - 125 at 20 ◦ Jabse Service Manual Search 2026 ◦ Jabse Pravopis ◦ onTap.bg ◦ Other service manual resources online : Fixya ◦ eServiceinfo