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5. Turn the ignition switch ON (II), and check the same
terminals for voltage.
HEATER CONTROL PANEL CONNECTOR A 114PI
Wire side of female terminals
HEATER CONTROL PANEL CONNECTOR B t22PI
PNK/BLK
3
4
5
11
12
14
15
16
19
20
21
22
Wire side of female terminals
Is there any voltage?
YES-Repair any short to power in the wiretsl
between the heater control panel and the air mix
control motor. This short may also damage the
heater control panel. Repair the short to power
before replacing the heater control panel..
NO-Substitute a known-good air mix control
motor, and recheck. If the symptom/indication goes
away, replace the original air mix control motor. If
the symptom/indication continues, substitute a
known-good heater control panel. and recheck. If
the symptom/indication goes away, replace the
original heater control panel..
Ole 9:
A Problem in the Air Mix Control
Linkage, Door, or Motor
1. Test the air mix control motor (see page 21-341.
Is the air mix control motor OK?
YES-Substitute a known-good heater control
panel, and recheck. If the symptom/indication goes
away, replace the original heater control panel..
NO-Replace the air mix control motor, or repair
the linkage and door .•
21-17
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Troubleshooting
