Honda Accord 2008 Manual page 1994

07/11/02 09:43:57 61TA0000_210_0130
DTC B1233 or DTC indicator A and A/C ON:
An Open in the Driver's Air Mix Control
Motor Circuit
1. Clear the DTC with the HDS.
2. Turn the ignition switch to LOCK (0) and then to
ON (II).
3. Do the self-diagnostic function with the HDS
(see page 21-87) or climate control unit (see page
21-88).
4. Check for DTCs.
Is DT C B1233 or A and A/ C ON indicated?
YES − Go to step 5.
NO − Intermittent failure; check for loose wires or
poor connections on the driver's air mix control
motor circuit.
5. Turn the ignition switch to LOCK (0).
6. Test the driver's air mix control motor (see page
21-52).
Is the driver's air mix control motor OK ?
YES − Go to step 7.
−
NO Replace the driver's air mix control motor
(see page 21-53).
7. Disconnect the driver's air mix control motor 7P
connector.
8. Disconnect climate control unit connector A (28P)
and B (12P).
9. Check for continuity between the following
terminals of climate control unit connectors A (28P),
B (12P), and the driver's air mix control motor 7P
connector.
28P: 7P:
No. 14 No. 3
12P: 7P:
No. 10 No. 7
No. 12 No. 5
CLIMATE CONTROL UNIT CONNECTOR A (28P)
Wire side of female terminals
GRY
DRIVER'S AIR MIX CONTROL MOTOR 7P CONNECTOR
Wire side of female terminals
CLIMATE CONTROL UNIT CONNECTOR B (12P)
Wire side of female terminals
WHT* 1
2
RED*
DRIVER'S AIR MIX CONTROL MOTOR 7P CONNECTOR
Wire side of female terminals
*1: With navigation
*2: Without navigation
Is there continuity?
−
YES Check for loose wires or poor connections at
climate control unit connectors A (28P), B (12P),
and at the driver's air mix control motor 7P
connector. If the connections are good, substitute a
known-good climate control unit and recheck. If the
symptom/indication goes away, replace the
original climate control unit.
NO − Repair open in the wire(s) between the
climate control unit and the driver's air mix control
motor.
ＴＡ０８ＡＨ７Ｋ７１１０００Ｙ１２３３ＦＡＡＴ００
GRY
BLK
BLK
WHT
21-129
＊０１
＊０２