First I need to unplug the horn to see if that's the problem. If it is, problem identified. Then I'll check the brake light bulbs to see if they're causing a short. Only problem is, I can't find the horn connector on a 1997 Civic. Does anyone know where it is?
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Why do fuse's keep blowing ? A short circuit to (ground) somewhere . Do you know how to use a wiring diagram an a DVOM - digital volt ohm meter to test electrical circuit's ? Brake ? brake light's ? You can't get it out of park because of the shift lock solenoid ( shifter interlock system ) This is a safety system that won't let gear selector to move from park unless driver is pushing the brake pedal . The fuse blowing - no power to brake light switch , computer see's no signal so it won't energize the shift lock solenoid . http://www.bbbind.com/free-tsb Enter vehicle info. Year , make , model an engine size . Under system click on lighting ,then under subsystem click on stop lamps . click the search button ,then the blue link. Electric Testing Techniques You Need to Know How to find short to ground blown fuse
What is the amp rating on the fuse that keeps blowing? I looked at wiring for stop lamps, 15 amp fuse. Unplug connector for stop lamp switch, see if the fuse still blows? Also see if anything at connector looks burned or melted.
You could have problem with fuse box, itself. Look at back side of fuse box, see if anything looks burned or melted.
If you keep blowing the brake fuse than you have a short in the system. Unplug the brake switch. Install a new fuse. If it did not blow than the problem is after the brake switch. Next unplug the turn signal switch, then plug the stop light switch back in and press the brake pedal. Did the fuse blow. If not than the wiring is good in between the two switches. With the turn signal switch disconnected use a jumper wire in between the light green wire (power from the brake switch) and the orange with light blue wire (power to the right brake lamp). If the fuse blows than there is a short in the right side brake circuit between the plug in and the rear socket assembly. If the fuse does not blow than jump from the light green wire to the Light green with orange wire (power to the left brake lamp). If the fuse blows than the problem is in the left hand brake wiring circuit.
Hi there: The simplest way to check the brake light fuse on a Honda is to operate the horn. The horn is always on the same fuse as the brakelights.
The fuse position #7, "Stop" is the one. Ive been doing this so long I dont even look at the fuse unless the horn won't blow. It's the fastest surest test. So if the horn works, I'm 99 % sure its the bulbs. The brake light switch has to be good if the shifter works with the brake pedal. Unless the car has been taken apart or damaged in the rear recently I cant see another cause for the light to be out.
The brake lights even use different grounds, so thats unlikely too. Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.
Here is an idea, when do you blow the fuse key on, key on engine running, key on engine running hitting the break pedal? Try and get the key on without blowing fuse if possible, then one at a time try those circuit loads ie: horn, brake pedal and so on, if you isolate which load is pulling to many amps(blowing fuse) unplug that load itself, then restart testing, see if fuse stays ok. You can also substitue the fuse with a circuit breaker and unplug each load until click(of breaker) stops.
The horn and rear brake lights are on the same fuse. Eventually the horns rust out like on my 1998 CRV. Once I replaced the horns, I could put in a new fuse without it blowing every time I sounded the horn. Problems still remain, namely: the cruise control does not engage and the remote start only starts the engine that runs for two seconds then dies. Still looking for an answer. It's a "Code Alarm" with Codestart dated 11/24/99.
Maybe horn became unplugged. Put 12 v power to horn make sure horn works. Put test light on terminal on horn have someone press the horn button, if light comes on and horn does not blow you may need new horn. if light does not come on you may have bad contact at horn button, blown fuse, broken wire, bad horn relay or possibly just a bad ground.
You have a short in the lighting system. Try removing both brake bulbs and with a new fuse installed.. does it still blow the fuse? If not, then install one bulb at a time and repeat the test.. You probably have a short in or around the bulb socket.. Hope this helps