HELP Compass Calibration
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New User
Joined: May 2003
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HELP Compass Calibration
Hi All... I've run into the dreaded compass calibration issue. The car was in the shop, and they disconnected the battery and the compass got reset. Problem is when I bought the truck, I didn't get the manual.
Can someone please be so kind as to type the instructions to calibrate the compass?? I've tried everything I know based on other newsgroups, but I really need the detailed instructions.
Thanks in advance for your time.
Dave
Can someone please be so kind as to type the instructions to calibrate the compass?? I've tried everything I know based on other newsgroups, but I really need the detailed instructions.
Thanks in advance for your time.
Dave
Senior User
Joined: Mar 2002
Posts: 369
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From: Tannersville PA USA
HELP Compass Calibration
There is a hole in the bottom of the unit attached to the back of the inside rear view mirror.
Stick the end of a paper clip in there and drive in a circle 2-3 time s until it reads normal.
Bob
Stick the end of a paper clip in there and drive in a circle 2-3 time s until it reads normal.
Bob
HELP Compass Calibration
Lead Driver
Joined: Apr 2002
Posts: 7,746
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From: Tampa Bay, FL USA
HELP Compass Calibration
Originally posted by DavidRmrz
I can't thank you all enough for your help!!
Dave
I can't thank you all enough for your help!!
Dave
All checks should be made out to the Committee to Aid the Starving and Homeless (CASH) and mailed to P. O. box 449.....
(Just kidding..
)
New User
Joined: Jun 2003
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HELP Compass Calibration
This may sound stupid, but I guess I'm doing something wrong. I have the same problem (compass out of whack & no manual).
I press the paperclip into the hole & it says "Zone 1". If I release & press the paperclip back in, I can change the zone. I have no idea what this does -- maybe set a zone relative to magnetic north since it isn't exactly what we all consider north?
Anyway, if I DON'T release & re-press during the "Zone" bit, It shows the compass with "CAL" under it (calibrate, I assume). So, I drove in circles until the CAL goes away. But, when it does, the compass reverts to the whacked-out directions it had originally. I tried going slowly, going quickly, even rotating the module by hand!
Can I get a little more detail about what exactly I should do about this? PLEASE!?
I press the paperclip into the hole & it says "Zone 1". If I release & press the paperclip back in, I can change the zone. I have no idea what this does -- maybe set a zone relative to magnetic north since it isn't exactly what we all consider north?
Anyway, if I DON'T release & re-press during the "Zone" bit, It shows the compass with "CAL" under it (calibrate, I assume). So, I drove in circles until the CAL goes away. But, when it does, the compass reverts to the whacked-out directions it had originally. I tried going slowly, going quickly, even rotating the module by hand!
Can I get a little more detail about what exactly I should do about this? PLEASE!?
Senior User
Joined: Mar 2002
Posts: 369
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From: Tannersville PA USA
HELP Compass Calibration
I had that same problem on my 99 Expy.
It turned out that the black module you're sticking the clip into failed and had to be replaced. It was under warrenty so I'm not sure what it cost. At the time the part was back ordered and the service rep. said there was a "run" on them . I've seen this complaint come up on other sites as well.
It's probably reading 180 degrees out but in a weired way.
Please let us know how much that thing costs. It's easy to replace. There's a connector similar to a phone connector that plugs into it and the unit clips to the mirror.
I used to have my old one floating around on my desk here but just threw it out a month ago. The two halves of the unit clip together. I opened it up just to see what was inside. It's a bunch of surface mount components with a little microprocessor.
Hope this helps---Bob
It turned out that the black module you're sticking the clip into failed and had to be replaced. It was under warrenty so I'm not sure what it cost. At the time the part was back ordered and the service rep. said there was a "run" on them . I've seen this complaint come up on other sites as well.
It's probably reading 180 degrees out but in a weired way.
Please let us know how much that thing costs. It's easy to replace. There's a connector similar to a phone connector that plugs into it and the unit clips to the mirror.
I used to have my old one floating around on my desk here but just threw it out a month ago. The two halves of the unit clip together. I opened it up just to see what was inside. It's a bunch of surface mount components with a little microprocessor.
Hope this helps---Bob
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