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10. Turn t h e ignition switch OFF.
11. Check f o r continuity between the f o l l o w i n g
terminals of the heater control panel 22P connector
and the recirculation control motor 7P connector.
22P;
7P:
N o . 1
No. 7
No. 11
No. 5
H E A T E R C O N T R O L P A N E L 2 2 P C O N N E C T O R
W i r e s i d e o f f e m a l e t e r m i n a l s
1 2 3 4 5
6 7 8 9 10
11 12 13 14 15 1 6 M 1 7 18 19 20 21 22
G R N / R E D
0 )
ca
G R N / R E D
1
GRN/WHT
5 i 7 m
R E C I R C U L A T I O N C O N T R O L M O T O R 7 P C O N N E C T O R
W i r e s i d e o f f e m a l e t e r m i n a l s
Is there
continuity?
YES — Check f o r loose wires or poor connections at
the heater control panel 22P connector and at
recirculation control motor 7P connector. If the
connections are g o o d , substitute a k n o w n - g o o d
heater control panel, and recheck. If the s y m p t o m /
indication goes away, replace the original heater
control panel. •
NO —Repair any open in the wire(s) between the
heater control panel and the recirculation control
motor. •
12. Remove the recirculation control motor (see page
21-22).
13. Check the recirculation control linkage and doors
for smooth movement.
Do the recirculation
control
linkage
and
doors
move
smoothly?
YES —Replace t h e recirculation control motor. •
NO—Repair t h e recirculation control linkage or
doors. •
Blower Motor Circuit
Troubleshooting
1. Turn the ignition switch ON (II) and the heater fan
switch O N .
Does the blower
run?
Y E S - G o to step 2.
N O - G o t o step 16.
2. Turn the heater fan switch OFF.
3. Make sure the ignition switch ON (II).
Does the blower
motor
run?
Y E S - G o t o step 4.
N O - G o t o s t e p 9 .
4. Turn the ignition switch OFF.
5. Disconnect the blower motor 2P connector.
6. Disconnect the blower resistor 5P connector.
7. Disconnect the heater f a n switch 7P connector.
8. Check f o r continuity between the No. 3, 4, 5 and 6
terminals of the heater fan switch 7P connector and
body ground individually.
H E A T E R F A N S W I T C H 7 P C O N N E C T O R
W i r e s i d e o f f e m a l e t e r m i n a l s
B L U
B L U / R E D
B L U / B L K
B L U / Y E L
(W
( f t )
Is there
continuity?
YES —Repair any short to body g r o u n d in the w i r e
(s) between the blower motor, the blower resistor
and the heater fan s w i t c h . •
NO—Replace the heater fan switch. •
(cont'd)
21-15
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Table of Contents
Troubleshooting
