I removed the instrument cluster from my 87' IS last week to rebuild the odometer with some new gears from garagistic. While the gears were easy to swap out, I managed to take one step forward and two steps back. When I re-installed the cluster in the car the odometer still did not work, and I lost my previously functioning MPG gauge and OBC functions related to mpg and fuel.
For the odometer, I was able to move the gears by hand and spin the numbers up. Leading me to believe the problem could be with the odometer drive motor itself. Any other ideas here? The speedometer itself works fine, just no recording of the mileage.
The MPG gauge was working before I pulled the cluster and now it swings between 0-Max MPG. No throttle but moving is infinite mpg, but any throttle and the gauge plummets to zero. So I still have some sort of signal or connection, but I don't know what to check here.
The OBC functions were working before I removed the cluster as well, MPG, Range, etc. Now those are not changing or not reading anything at all. I was thinking this maybe related to the single wire plug that goes into the back of the cluster in the green connector? I moved it to a different location but didn't have anything change in the way it operates.
Any help would be appreciated. I pulled the cluster back out and broke out the multimeter to start fishing around.
For the odometer, I was able to move the gears by hand and spin the numbers up. Leading me to believe the problem could be with the odometer drive motor itself. Any other ideas here? The speedometer itself works fine, just no recording of the mileage.
The MPG gauge was working before I pulled the cluster and now it swings between 0-Max MPG. No throttle but moving is infinite mpg, but any throttle and the gauge plummets to zero. So I still have some sort of signal or connection, but I don't know what to check here.
The OBC functions were working before I removed the cluster as well, MPG, Range, etc. Now those are not changing or not reading anything at all. I was thinking this maybe related to the single wire plug that goes into the back of the cluster in the green connector? I moved it to a different location but didn't have anything change in the way it operates.
Any help would be appreciated. I pulled the cluster back out and broke out the multimeter to start fishing around.
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