Heating And Air Conditioning Dtc Troubleshooting; An Open In The Air Mix Control Motor Circuit; A Short In The Air Mix Control Motor Circuit - Honda Civic 2002-2003 Service Manual

Heating and Air Conditioning
OTC Troubleshooting
DTC 7: An Open in the Air Mix Control Motor
Circuit
1. Test the air mix control motor (see page 21-341.
Is the air mix control motor OK?
YES-Go to step 2.
NO-Replace the air mix control motor .•
2. Disconnect the air mix control motor 5P connector.
3. Disconnect heater control panel connectors A (14PI
and B (22PI.
4. Check for continuity between the following
terminals of heater control panel connectors A
(14PI and B (22PI and the air mix control motor 5P
connector,
14P: 5P:
No.1
No.2
NO.3
No.9
22P:
No.6
No.5
No.4
No.2
No.1
5P:
No.3
HEATER
AIR MIX CONTROL
5P CONNECTOR
Wire side of female terminals
Is there continuity?
A114P1
I terminals
YES-Check for loose wires or poor connections at
heater control panel connectors A (14PI and B (22PI
and at the air mix control motor 5P connector. If the
connections are good, 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..
NO-Repair any open in the wire(sl between the
heater control panel and the air mix control
motor..
21-16
DTC 8: A Short in the Air Mix Control Motor
Circuit
1. Testthe air mix control motor (see page 21-341.
Is the air mix control motor OK?
YES-Go to step 2.
NO-Replace the air mix contorol motor..
2. Disconnect the air mix control motor 5P connector.
3. Disconnect heater control panel connectors A (14PI
and B (22PI.
4. Check for continuity between body ground and
heater control panel connector A (14PI terminals
No.1, 2, 3, and 9 individually, and between body
ground and heater control panel connector B (22PI
terminal No.6.
HEATER CONTROL PANEL CONNECTOR A (14PI
LTGRN
GRY ",-'-,-c:,P.NK/BLU
r-T-::T'-'
1 2 3 4 5 6
7 8 9 10 11 12 13 14
GRN
Q Q
Q
Wire side of female terminals
HEATER CONTROL PANEL CONNECTOR B (22PI
3 • 5
" I Z 14 15 16
Q
Wire side of female terminals
Is there continuity?
YES-Repair any short to body ground in the
wire(s) between the heater control panel and the air
mix control motor .•
NO-Go to step 5.