I20982
ON
VMC
(+)
(-)
DI-774
-
DIAGNOSTICS
AIR CONDITIONING SYSTEM
928
Author:
Date:
2001 SIENNA (RM787U)
3
Check voltage between terminal VMC of A/C control assembly and body ground.
PREPARATION:
Remove the A/C control assembly with connector still con-
nected.
CHECK:
(a)
Turn ignition switch to ON.
(b)
Operate rear A/C blower motor.
(c)
Measure voltage between terminal VMC of A/C control
assembly and body ground, when blower switch is oper-
ated to following positions.
OK:
Blower speed
Voltage
LO
7.2 V
ME
4.2 V
HI
0.5 V
OK
Proceed to next circuit inspection shown on
problem symptoms table See page
NG
