I20981
PSW
(+)
(-)
ON
Low Pressure Cut Side
Reference : High Pressure Cut Side
ON (0V)
196 kPa
OFF (12V)
225 kPa
ON (0V)
2,550 kPa
3,140 kPa
OFF (12V)
DI-722
-
DIAGNOSTICS
AIR CONDITIONING SYSTEM
876
Author:
Date:
2001 SIENNA (RM787U)
INSPECTION PROCEDURE
1
Check voltage between terminal PSW and GND of A/C control assembly.
PREPARATION:
Install the manifold gauge set.
CHECK:
(a)
Turn ignition switch ON.
(b)
Check voltage between terminal PSW of A/C control as-
sembly connector and body ground when refrigerant
pressure is changed.
OK:
The voltage changes with refrigerant pressure, as
shown in the diagram below.
NG
OK
Proceed to next circuit inspection shown on problem symptoms table (See page
er, if DTC 23 is displayed, check and replace A/C control assembly.
Содержание RM787U
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