92 CTD 4x4 speedo no work

[ISh]

Speedo, cruise control, overdrive and odometer do not work. I have replaced the ecm on the driver front fender and also put in a new speed sensor in the t-case. what else controls these functions? what else could I replace ?

 

[bgilbert]

Crank sensor.

 

[ISh]

Crank sensor.

All this stuff needs a crank sensor?

 

[DirtyDodge]

I had a 92 a few years ago, the speedo quit working... Long story short, The sensor rattled out of the housing and was hanging by its wires. I screwed it back in by hand and the speedo started working again. Probley not your problem, but you never know.



Derek

 

[Philip]

Check the wiring going down to the speed sensor. Mine had problems a few years back.

 

[dpuckett]

Yes, when in doubt, check the wiring. ALso check the wiring to the crank sensor.



Daniel

 

[ISh]

It's not the crank position sensor - tried one that I know worked. I need to try another dash and/or another computer. the last computer didn't let the alternator work - odd.

 

[cerberusiam]

It's not the crank position sensor - tried one that I know worked. I need to try another dash and/or another computer. the last computer didn't let the alternator work - odd.

Be usre to check the CPS wiring at the top of the block. The belt can cut the wires behind the fan and it is hard to see. Also check the large plug near the top of the block. The pins may not seat correctly after a time.

 

[ISh]

All the wiring looks good.