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input and out put speed sensors tell the TCM and the ECM the difference between engine rpms and transmission input roms so that the correct gear ratio can be selected
A speedo sensor reads the out put shaft (drive line ) shaft and refers to road speed for speed and odometer readings and to calculate the fuel consumption rate
it is possible that you have replaced the wrong sensor
Talk with an accredited transmission specialist shop and have the problem diagnosed
You could have a faulty speedometer/odometer combination meter causing a false Vehicle Speed Sensor error.
My 1998 Sienna had the following symptoms:
- Speedometer and odometer failed intermittently
- The check engine light would come on and I would get a p0500 code in the OBDII.
- The cruise control would stop working at the same time the speedometer failed.
There is a speed sensor in each one of the tires and they feed the speed information to the ABS ECU. From the ABS ECU the speed signal goes to the speedometer/odometer combination meter, and from there it goes to the Engine Control Module and to the Cruise Control ECU. I could see a signal coming into the speedometer/odometer, but no signal going out. Replacing the speedometer/odometer combination meter fixed the problem.
The odometer quits working when the speedometer quits working. The most common cause for the speedometer to quit working is the speed sensor in the transmission. You said you replaced it, there is also a transmission speed sensor on your truck that may need to be replaced. I understand your frustration, but there is nothing else that would cause the speedometer to quit except the cable behind the gauges being clogged.
Most likely a speed sensor is going bad (most cars and truck do not use mechanical speedometer cables anymore) most sensors are located near the differential in rwd cars or near the drive shaft on the transmission. Best bet is to get a Haynes manual for your car to help locate the speed sensor. Remove it and take it to the auto parts store so you can visually compare it to the replacement. Install the new speed sensor and it should restore your speedometer and odometer.
Hi, I have a trooper also, I am pretty sure if it has a speed sensor it would ;located on the transmission near the tailshaft. Not sure that will help, but mine is a standard, so I can't look for you.
or the transfer case maybe?
hi there try to get a price on the speed sensor located on the transmission this sensor tells the computer how fast the van is going in turn the transmission shifts gears and there will be information sent to the speedometer . the reason the van only goes in low gear is to protect the system because the sensor is damaged so replace the speed sensor and try again , let me know how its running after relpaceing the sensor good luck