Odyssey EX V6-3.5L (1999)
Is there battery voltage?
YES - Go to step 10.
NO - Repair open in the wire between the heater control panel and the A/C pressure switch.
10. Turn the ignition switch OFF.
11. Disconnect the heater fan switch 7P connector.
12. Check for continuity between the No.21 terminal of the heater control panel 22P connector and the No.2 terminal of the heater fan switch 7P
connector.
Is there continuity?
YES - Go to step 13.
NO - Repair open in the wire between the heater control panel and the heater fan switch.
13. Test the heater fan switch.
Is the heater fan switch OK?
YES - Go to step 14.
NO - Replace the heater fan switch.
14. Check for continuity between the No.1 terminal of the heater fan switch 7P connector and body ground.
Is there continuity?
YES - Check for loose wire or poor connections at the heater control panel 22P connector, the heater fan switch 7P connector and at the A/C
pressure switch 4P connector. If the connections are good, substitute a known-good heater control panel, and recheck. If the symptom/indication
goes away, replace the original heater control panel.
NO - Check for an open in the wire between the heater fan switch and body ground. If the wire is OK, check for poor ground at G401.
15. Check for proper A/C system pressure.
Is the pressure within specifications?
