Overdrive ckt.... - TDR Roundtable

Overdrive ckt....

03-04-2009, 01:05 AM

#1 (permalink)

BHerring

Non Member

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Join Date: Dec 2007 Posts: 98

Overdrive ckt....

Hi all,
Hey....I need some help with the overdrive circuit (ckt). I can’t tell if my truck is going into overdrive. First thing I tried was the OD switch on the instrument panel and the tranny did not sift into 3rd. I pushed the button several times with no luck. During normal driving conditions I cannot tell if she is going into 4th (OD). I did read the Dodge Service manual and I know the fuse is good. What I need help is the wiring diagrams. I also know there is the tranny temp and coolant temp that enable the OD. I need to know the signal flow or what the sensor enables. I know the OD solenoid is on top of the tranny. When I have OD on what should be at the tranny solenoid? This is most likely a simple ckt, I just don’t understand / read the factory wiring diagrams. Any and all information will be greatly appreciated.

Cheers,

__________________
1993 D250, Automatic Transmission, ABS removed.

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