Horn and Cruise Contol Not Working - Wiring Harness?
Posted: Mon Jul 07, 2014 8:58 pm
I had originally added comments to another thread:
http://www.b190.com/viewtopic.php?f=4&t=506
But now I've decided to make a new thread since my issues seem to be different than the original thread.
A month or so ago I realized the horn and cruise control were not working. This 1998 van was purchased "used as-is" recently from a private buyer and of the many things we checked when purchasing the van, horn and cruise control were not on the list. Even if we had... I don't know if we would have realized the implications. I don't know the last time the horn and cruise control worked.
By the way, there is no indication the steering wheel airbag is not working. In addition, a Ford technician checked to see if the computer stored any error codes and they did not see any problems registered.
I checked the clockspring on the van and everything seems to be in order meaning I checked the continuity of mechanism and all the pins checked okay. I get continuity from the connectors in the steering wheel to the connectors at the base of the steering column However, that is about my limit of troubleshooting. I don't have the shop manuals for this vehicle so I don't know what to check next.
The Ford technician indicated he checked the fuse box in the engine compartment (above the ABS valve module on the driver side) and found no power to the horn and cruise control circuit. His first reaction was replace the engine compartment wiring harness but later found it is not available from Ford or from LKQ.com (salvage yard). So the technician suggested I leave the van with them so they can do more troubleshooting and find the problem. This sounds good but they want me to tell them how much time to spend (at $120 per hour) before I cry "ouch!" I'd be willing to spend 2 or 3 hours if I felt confident the problem would be resolved. Argghh! I realize this type of problem is not straightforward but I'm not sure I want to spend large sums of money on this problem.
I need the horn for safety reasons. I can get by without cruise control.
Here are some options as I see them. Your comments are appreciated.
1) Go without a horn. Lot's of people probably drive cars with inoperable horns. However, this makes me feel uncomfortable as I recently avoided a crash by alerting the offending driver with a toot of my horn (different vehicle).
2) Allow the Ford technician to do some troubleshooting. If so, how many hours (at $120/hour) would you be willing to pay?
3) Rewire the horn the old-fashioned way. I'll buy a separate relay, hook it up to the positive side of the battery, hook up the ground (the mounting tab of the relay), hook up the horn and attach the other leg to the wire coming from the horn button. A little crude... but at least I get a working horn. Total cost probably less than $50 and several hours of my time. Here's a link to a sample diagram I found:
http://www.theautomotiveindia.com/forum ... relay.html
http://www.b190.com/viewtopic.php?f=4&t=506
But now I've decided to make a new thread since my issues seem to be different than the original thread.
A month or so ago I realized the horn and cruise control were not working. This 1998 van was purchased "used as-is" recently from a private buyer and of the many things we checked when purchasing the van, horn and cruise control were not on the list. Even if we had... I don't know if we would have realized the implications. I don't know the last time the horn and cruise control worked.
By the way, there is no indication the steering wheel airbag is not working. In addition, a Ford technician checked to see if the computer stored any error codes and they did not see any problems registered.
I checked the clockspring on the van and everything seems to be in order meaning I checked the continuity of mechanism and all the pins checked okay. I get continuity from the connectors in the steering wheel to the connectors at the base of the steering column However, that is about my limit of troubleshooting. I don't have the shop manuals for this vehicle so I don't know what to check next.
The Ford technician indicated he checked the fuse box in the engine compartment (above the ABS valve module on the driver side) and found no power to the horn and cruise control circuit. His first reaction was replace the engine compartment wiring harness but later found it is not available from Ford or from LKQ.com (salvage yard). So the technician suggested I leave the van with them so they can do more troubleshooting and find the problem. This sounds good but they want me to tell them how much time to spend (at $120 per hour) before I cry "ouch!" I'd be willing to spend 2 or 3 hours if I felt confident the problem would be resolved. Argghh! I realize this type of problem is not straightforward but I'm not sure I want to spend large sums of money on this problem.
I need the horn for safety reasons. I can get by without cruise control.
Here are some options as I see them. Your comments are appreciated.
1) Go without a horn. Lot's of people probably drive cars with inoperable horns. However, this makes me feel uncomfortable as I recently avoided a crash by alerting the offending driver with a toot of my horn (different vehicle).
2) Allow the Ford technician to do some troubleshooting. If so, how many hours (at $120/hour) would you be willing to pay?
3) Rewire the horn the old-fashioned way. I'll buy a separate relay, hook it up to the positive side of the battery, hook up the ground (the mounting tab of the relay), hook up the horn and attach the other leg to the wire coming from the horn button. A little crude... but at least I get a working horn. Total cost probably less than $50 and several hours of my time. Here's a link to a sample diagram I found:
http://www.theautomotiveindia.com/forum ... relay.html