412-00-9
Climate Control System — General Information
412-00-9
DIAGNOSIS AND TESTING (
CONTINUED
)
CONDITIONS
DETAILS/RESULTS/ACTIONS
A14: CHECK THE HEATER CONTROL S LENOID VALVE
O
1
.
2
.
Heater control sole-
noid valve C49
3
.
4
Check the temperature of the airflow.
• Is the air flow permanent cold?
Yes
CHECK the heater control solenoid valve for
blockages. TEST the system for normal
operation. If necessary INSTALL a new one.
TEST the system for normal operation.
No
GO TO
A15
A15: CHECK THE CIRCUIT 31-CA82 FOR SHORT TO GROUND
NOTE:
The proper function of the heater control solenoid valve is dependent from the signal of the ta-
chometer.
1
.
2
.
Heater control sole-
noid valve C49
3
.
Heater control
module C28
4
.
5
Check the temperature of the airflow.
• Is the air flow permanent cold?
Yes
REPAIR the open circuit(s) between heater
control solenoid valve and heater control
module by using the wiring diagrams. TEST
the system for normal operation.
No
CHECK the heater control module. If neces-
sary INSTALL a new one. TEST the system
for normal operation.
E9425 EN
07/2001 2002 Bantam