Honda Accord 2008 Manual page 1883

07/11/02 09:39:23 61TA0000_210_0019
Heating/Air Conditioning
DTC Troubleshooting
DTC indicator 1:
Control Motor Circuit
1. Turn the ignition switch to LOCK (0) and then to
ON (II).
2. Do the self-diagnostic function with the HVAC
control unit (see page 21-9).
3. Check for DTCs.
Is DT C 1 indicated?
YES − Go to step 4.
−
NO Intermittent failure; check for loose wires or
poor connections on the air mix control motor
circuit.
4. Turn the ignition switch to LOCK (0).
5. Test the air mix control motor (see page 21-52).
Is the air mix control motor OK ?
YES − Go to step 6.
−
NO Replace the air mix control motor (see page
21-53).
6. Disconnect the air mix control motor 7P connector.
7. Disconnect the HVAC control unit 24P connector.
21-18
An Open in the Air Mix
8. Check for continuity between the following
terminals of the HVAC control unit 24P connector
and the air mix control motor 7P connector.
24P: 7P:
No. 13 No. 5
No. 15 No. 7
No. 17 No. 3
HVAC CONTROL UNIT 24P CONNECTOR
Wire side of female terminals
BLK RED GRY
GRY
AIR MIX CONTROL MOTOR 7P CONNECTOR
Wire side of female terminals
Is there continuity?
YES − Check for loose wires or poor connections at
the HVAC control unit 24P connector and at the air
mix control motor 7P connector. If the connections
are good, substitute a known-good HVAC control
unit and recheck. If the symptom/indication goes
away, replace the original HVAC control unit.
NO − Repair open in the wire(s) between the HVAC
control unit and the air mix control motor.
ＴＡ０８ＡＨ６Ｋ７３３０００８１０１０ＦＡＡＴ００
BLK
WHT
＊０１