1997 accord heater and controls won't shut off even when ignition is off
Thread Starter
Joined: Mar 2013
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1997 accord heater and controls won't shut off even when ignition is off
I have pulled the #8 fuse and have removed the blower motor relay. With the #8 fuse pulled I can still turn on the fan and the heater controls still have power to them. With the motor relay pulled I still have power to my controls but the fan does not run. Any ideas?
Super Moderator : And A Texan
Joined: Feb 2007
Posts: 9,652
From: Katy, TX
Fuse 8 powers the mode control motor which selects vents, not the blower motor. Blower is powered through fuse 17 (under hood).
If you have power to the heater controls, w/ ignition switch off, the problem is likely a faulty ignition switch (a common problem on Hondas). You could check for power to fuse 8 contacts w/ fuse removed to confirm that switch is not disabling power when off.
Blower is always hot (ignition off or on) and enabled through fuse 8 providing power to the blower relay. Blower is enabled by blower speed setting switch. You should be able to disable blower, even if ignition switch is providing power when off.
good luck
If you have power to the heater controls, w/ ignition switch off, the problem is likely a faulty ignition switch (a common problem on Hondas). You could check for power to fuse 8 contacts w/ fuse removed to confirm that switch is not disabling power when off.
Blower is always hot (ignition off or on) and enabled through fuse 8 providing power to the blower relay. Blower is enabled by blower speed setting switch. You should be able to disable blower, even if ignition switch is providing power when off.
good luck
Last edited by TexasHonda; Mar 9, 2013 at 06:37 PM.
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