Honda Accord: HVAC Control Power and Ground
Circuit Troubleshooting
1. Check the No. 16 (7.5 A) fuse in the driver's under-dash fuse/ relay box.
Is the fuse OK? YES
-Go to step 2.
NO
-Replace the fuse, and recheck. If the fuse blows again, check for a short in the No. 16 (7.5 A) fuse circuit.
2. Disconnect the HVAC control unit 24P connector.
3. Turn the ignition switch to ON (II).
4. Measure the voltage between HVAC control unit 24P connector terminal No. 11 and body ground.
HVAC CONTROL UNIT 24P CONNECTOR
Wire side of female terminals
Is there battery voltage? YES
-Go to step 5.
NO
-Repair an open in the wire between the No. 16 (7.5 A) fuse in the driver's under-dash fuse/relay box and the HVAC control unit.
5. Turn the ignition switch to LOCK (0).
6. Check for continuity between HVAC control unit 24P connector terminal No. 23 and body ground.
HVAC CONTROL UNIT 24P CONNECTOR
Wire side of female terminals
Is there continuity? YES
-Check for loose wires or poor connections at the HVAC control unit 24P connector. If the connections are good, substitute a known-good HVAC control unit (see page 21-65), and recheck.
NO
-Check for an open in the wire between the HVAC control unit and body ground. If the wire is OK, check for poor ground at G401 (see page 22-40).
Recirculation Control Motor Circuit
Troubleshooting
908-09 models 4-door with A/T and '10 model
with AT
1. Check the No. 16 (7.5 A) fuse in the driver's
under-dash fuse/ relay box.
Is the fuse OK?
YES-Go to step 2.
NO-Replace the fuse, and re ...
A/C Condenser Fan Circuit
Troubleshooting
NOTE:
• Do not use this troubleshooting procedure if the
radiator fan and/or the A/C compressor is inoperative.
Refer to the symptom troubleshooting index.
• Before doing symptom tro ...
See also:
Climate Control Power and Ground
Circuit Troubleshooting
1. Check the No. 16 (7.5 A) fuse in the driver's
under-dash fuse/ relay box.
is the fuse OK?
YES-Go to step 2.
NO-Replace the fuse, and recheck. If the fuse blows
again, check for a short in ...
Body Electrical
Special Tools
General Troubleshooting Information
Tips and Precautions
Special Tools Required
Back Probe Adapter, 17 mm 07TAZ-001020A
1. Check applicable fuses in the appropriate fuse/relay
...
Customer Service Information
Honda dealership personnel are
trained professionals. They should
be able to answer all your questions.
If you encounter a problem that your
dealership does not solve to your
satisfaction, pl ...