If rear  wiper inoperative, before looking at any wiring diagrhams, open rear glass.  Wiper arm should move freely, if not the wiper arm is froze, disassemble, clean, lubricate and reassemble.  Check wiper motor operation while glass is up, the arm being froze may have burnt up motor.
———-
Subject: Rear Wiper Inoperative
Vehicle: 2003 Ford Expedition
Category/Subcategory: Accessories and […]

If you run into one of these and the speedometer, tach, fuel gauge, heat guage, doesn’t operate, and all the warning lites come on, this will save you alot of time and money.  First if you can beat on top of the dash, and the problem comes and goes, then the problem is in the […]

   Optical crank angle sensor testing does not exist in the 1987 model year’s information. You can find a proper testing chart in the 1989 Nissan Pathfinder information where you will find the O.E. test procedure matches to the 1987 wiring and PCM connector pin locations.
   Procedure outlines testing via a logic probe while the […]

Look for the flexible fuel badge on the vehicle. If customer complains of MIL illumination with code PO460 and inoperative fuel gauge unplug flexible fuel sensor.
You will have to remove the radio and heater control head which takes about a minute. Sensor is a six wire plug bolted to dash support behind radio.
If gas gauge […]

On diagnosis of code P2119 using the walk thru chart given will possible cause replacement of a Eletronic throttle body assembly instead of the actual culprit the ECM. This could be an issue with techs that are not familiar with this system. Starting with the chart: Step 1 “Did you perform the Diagnostic system check” […]