Honda Accord: Audio Communication Line Circuit
Troubleshooting
1. Turn the ignition switch to LOCK (0).
2. Disconnect climate control unit connector A (28P) and the audio-HVAC subdisplay (with navigation) or audio-HVAC display unit (without navigation) 12P connector.
3. Check for continuity between the following terminals of climate control unit connector A (28P) and the audio-HVAC subdisplay or display unit 12P connector.
28P: 12P:
No. 19 No. 7
No. 20 No. 8
CLIMATE CONTROL UNIT CONNECTOR A (28P)
Wire side of female terminals
AUDIO-HVAC SUBDISPLAY UNIT 12P CONNECTOR*!
AUDIO-HVAC DISPLAY UNIT 12P CONNECTOR*2
Wire side of female terminals
*1: With navigation
*2: Without navigation
Is there continuity? YES
-Go to step 4.
NO-
Repair an open in the wire between climate control unit connector A (28P) and the audio-HVAC subdisplay or display unit 12P connector.
4, Check for continuity between body ground and climate control unit connector A (28P) terminals No. 19 and No. 20 individually.
CLIMATE CONTROL UNIT CONNECTOR A (28P)
Wire side of female terminals
*1: With navigation
*2: Without navigation
Is there continuity? YES-Repair a short to body ground in the wire
between climate control unit connector A (28P) and the audio-HVAC control unit 12P connector.
NO
-Go to step 5.
5. Reconnect climate control unit connector A (28P).
6. Connect audio-HVAC subdisplay or display unit 12P connector terminals No. 7 and No. 8 with a jumper wire.
AUDIO-HVAC SUBDISPLAY UNIT 12P CONNECTOR* 1
AUDIO-HVAC DISPLAY UNIT 12P CONNECTOR*2
Wire side of female terminals
* 1 : With navigation
*2: Without navigation
7. Turn the ignition switch to ON (II).
8. Press and hold the DEF button and OFF button.
Is the DEF button LED blinking? YES
-Audio-HVAC subdisplay unit or display unit is faulty, replace the audio-HVAC subdisplay unit (see page 23-118) or audio-HVAC display unit (see page 23-119).
NO
-Climate control unit is faulty, replace the climate control unit (with navigation) (see page 21-190), (without navigation) (see page 21-191).
Navigation Communication Line Circuit
Troubleshooting
1. Operate the climate control system in several modes.
Is the climate control system OK?
YES-Go to step 2.
NO-Do the self-diagnostic function with the HDS (see
page 21-102) or climate control ...
Climate Control Switch
Communication Line Circuit
Troubleshooting
1. Operate the climate control system with the
passenger's climate control switch in all modes.
Does the climate control system operate?
YES-lntermittent failure. Check for loose wires or
poor c ...
See also:
Instruments and Controls
This section gives information about
the controls and displays that
contribute to the daily operation of
your vehicle. All the essential
controls are within easy reach. ...
PSP Switch Signal Circuit
Troubleshooting
1. Start the engine, and let it idle.
2. Align the steering wheel straight ahead.
3. Check the PSP SWITCH in the DATA LIST with the
HDS.
Does it indicate ON?
YES-Go to step 4.
NO-Go to s ...
Differential Carrier/Final Driven Gear Replacemen
1. Loosen the bolts in a crisscross pattern in several
steps, then remove the bolts and the final driven gear
(A) from the differential carrier (B).
2. Install the final driven gear with the cham ...