Technical Service Bulletins
|Publication Date: NOVEMBER 18, 1996|
|1997 MARK VIII|
|1997 AEROSTAR, ECONOLINE, EXPEDITION, EXPLORER, F-150, F-250, MOUNTAINEER|
Beginning with Job 1 1997, some vehicles will be equipped with a new Digital Transmission Range (DTR) sensor. The DTR sensor is located on the outside of the transmission (Figure 1) at the outer manual lever.
Refer to the following text to properly diagnose a concern with the DTR sensor.
Figure 1 – Article 96-24-10
The new DTR sensor completes the start circuit in “Park” and “Neutral,” the backup lamp circuit in “Reverse” and the neutral sense circuit (4X4 only) in “Neutral.”
The DTR sensor also opens/closes a set of four (4) switches that are monitored by the Powertrain Control Module (PCM) to determine the position of the transmission manual lever.
To properly diagnose the DTR sensor, use the NGS, Rotunda Transmission Tester with TR/MLP Cable “E” (Figure 2) and the new DTR Sensor Overlay (Figure 4), while following the procedures outlined in the appropriate model 1997 Service Manual, Section 07-01 or appropriate model 1997 Workshop Manual, Section 307-01. The new DTR Sensor Overlay (007-00131) and updated Tester Manual was sent to all dealers in August 1996. The TR/MLP Cable “E” (007-00111) was sent to all dealers in June 1995 (refer to 95-19-7).
Figure 2 – Article 96-24-10
Figure 4 – Article 96-24-10
When using Cable “E” (Figure 3) to diagnose the DTR sensor, the slide switch must be in the “Digital” position and the “Black” 12-pin connector installed on the sensor. Having the slide switch in the incorrect position or using the incorrect 12-pin connector will result in misdiagnosis and possible replacement of a good component.
Figure 3 – Article 96-24-10
For diagnosis of the DTR sensor, always refer to the appropriate model 1997 Service Manual, Section 07-01 or appropriate model 1997 Workshop Manual, Section 307-01 for proper procedure and required equipment.
OTHER APPLICABLE ARTICLES:
501000, 502000, 503000, 503300, 504000, 601300