I have a 1997 Jeep Cherokee that has a problem with the gas gage not working. I have check all fuses.Also the speedometer is not working too. I found the output speed sensor wires broken. Does these w
when did they last work, last week or never/? or unknown?
sure, you see it broken, why ignore that?????
most cars, have many speed sensors.
the engine speed, called RPM
the transmissions can have 1 or 2.
no engine stated, no exact transmission stated, nor if 2wd or 4wd,
most modern car , got smart, and the ECU guy told the tranny engineer hey buddy, we dont need no stinking cables.
only cheaper and 10x more reliable mag sensor.
this car has a 100% totally digital cluster.
the PCM computes all data, and sends that data to CLUSER
via a magic serial network called CCD.
end history.
the PCM if lied to , (bad sensors ) will send out bad data.
using the law of all computers, GIGO, garbage in , nets, garbage out.
there are 2 fuses. for the cluster
there is a scan tool port that is in USA OBD2 compliant.
and as such can be used to see if there are ERRORS.
called DTCs. id bet dollars to donut , there are ERRORS
you are ignoring.
Comm errors
or VSS, errors (vehicle speed sensor)
this trans has no stand alone VSS sensor
the 5 pin, connector to trans, has the shift solenoids, ground
and VSS all as one.
the VSS wires. are LG-WT (guess' light green with white stripe?)
if you scan the PCM every time, you get problems
magic happens, the blinders come off.
9/26/2014 12:17:02 PM •
1997 Jeep...
•
Answered
on Sep 26, 2014