Visual Inspection

Visual Inspection

This inspection will identify modifications or additions to the vehicle operating system that may affect diagnosis. Inspect the vehicle for non-Ford factory add-on devices such as:
^ Electronic add-on items:
- A/C
- generator (alternator)
- engine turbo
- cellular telephone
- cruise control
- CB radio
- linear booster
- backup alarm signal
- computer
^ Vehicle modification:

These items, if not installed correctly, will affect the PCM, or transaxle function. Pay particular attention to add-on wiring splices in the PCM harness or transaxle wiring harness, abnormal tire size, or axle ratio changes.
^ Leaks; refer to Leakage Inspection. Leakage Inspection
^ Correct selector lever linkage adjustments.

Selector Lever Linkage Check

Check selector lever linkage adjustment by matching the detents in the selector lever with those in the transaxle. If they match, the error is in the indicator.

Do not adjust the selector lever linkage.

Hydraulic leakage at the manual control valve can cause delay in engagements and slipping while operating is not correctly adjusted.

Check TSBs

Refer to all TSBs which pertain to the transaxle concern and follow the procedure.

Carry Out On-Board Diagnostics (Key ON Engine OFF [KOEO], Key ON Engine Running [KOER])

After a road test, with the vehicle warm and before disconnecting any connectors, carry out the Self Test using scan tool. Refer to Computers and Control Systems for diagnosis and testing of the PCM.