The following conditions may be cause of problem: Ã Poor connections at rear wheel sensor. Replace fuses and repair shorted wires, if necessary. If your rig has 150,000 miles on it and you purchased a used module with 350,000 miles on it that is that, nothing you can do about it. If continuity is not present, go to next step. It keeps using that constant forever.
Make sure the exciter ring is mounted correctly to the ring gear. Measure resistance between sensor terminals. Make sure the exciter ring is mounted correctly to the ring gear. But, remember: the only reason to change it is for a tire size change. If all items listed above check good, replace the Instrument Cluster Assembly. If indicated speed does not increase, go to step 8.
This describes how to test all the display elements. If battery voltage does not exist, repair appropriate wire from fuse panel. Does the pointer smoothly prove out, or sweep from 0 to maximum speed then back to 0? The odometer will begin with all zeroes and step through the display test each time the select button is pushed. Ã Open or shorted rear sensor coil. The pointer would normally prove out, or sweep from the lower to upper pointer stop and back again.
Refer to the following Diagnostic Procedure for details. You have to look very closely to see minor differences. It is not uncommon then for you to experience a faulty speedometer after having had your tires changed, for example. You can see yours by holding the Reset button while turning the key forward to Run, then release Reset. Be sure to stop with the mark on the tire exactly dead-center of the contact patch, just like with the first mark. When the count is zero 0 , no additional changes can be made to this instrument cluster. Use ohmmeter to check for opens in wiring between Pin 7 speed out and the affected module.
Standard transmission, 2 wheel drive. If voltage increases smoothly from zero to approximately 3. If resistance is 800-1400 ohms, go to next step. The first digit on the left does not always match the other digits. Re-assemble everything by following the steps in reverse.
Pulling back the plastic inner fender you will have access to the computer harness, this requires a 10mm socket to remove. If speedometer and odometer still do not operate, go to next step. That's according to a thread on here, and come to think of it I have never seen one of these trucks with over 400 on it. For 16 inch rims multiply by. So here is what I got for the conversion constant.
When i press the reset button and turn key on a message appears on speedo. Obtain the correct service part number from the Parts Catalogue and then contact the Electronic Odometer Exchange Center at 800 259-9700 for U. It also allowed me to convert to the later electronic cruise control servo, which was a big improvement over the older vacuum servo which starved itself when going uphill at high speed. Press the Select button to continue decreasing the constant by 0. If operation is not as specified, replace speedometer. If its a parts house vss it could be bad out of the box.
It keeps using that constant forever. Any slight dents, chips, etc. Check the original tire size on your door sticker. If all items listed above check good, replace the Instrument Cluster Assembly. Damaged, missing or bent teeth Metal chips on speed sensor Open or shorted sensor Improper gap between sensor and speed sensor ring Refer to Section 06-09A for additional information.
If available, a frequency counter may be connected to Pin 4 speed in and Pin 5 speed in -. Term Definition Options Rating Programmable Speedometer Odometer Module » Rate it: Positive State of Mind » Rate it: Persistent Shared Object Model » Rate it: Pipeline System for Octave and Matlab » Rate it: Palisade School of Mountaineering » Rate it: Potomac School of Ministry » Rate it: Primary Secretory Otitis Media » Rate it: Programma Samenwerking Opkomende Markten » Rate it: Pediatric Stroke Outcome Measure Rate it:. If odometer accumulates mileage, go to step 9. Refer to the following Diagnostic Procedure for details. But that's for 599 revs per mile, and 102 pulses per rotation.