Speedo/odometer don't work

Asked by oldguystruck May 21, 2023 at 02:52 PM about the 2001 Dodge RAM 2500 SLT LB RWD

Question type: Maintenance & Repair

When getting an emissions inspection was throwing a P0500 code (speed
sensor). Changed the speed sensor on the transmission,  continuity tested
good between the speed sensor connector and pins 25 & 28 on the ECM
harness, stuck a screwdriver in the sensor hole and the ring wasn't loose,
brother hooked up a code reader and saw no data stream for MPH, installed
a programmed ECM from Autozone - speedo still doesn't work. Hooked up a
code reader I bought and it shows no output for MPH. I'm stumped.

1 Answer
5

Guru9GYTC5 answered about a year ago

Been having same issues with my 2002 1500 still haven’t figured it out. My ac doesn’t work reverse lights stopped working & then yesterday went into limp mode

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