Sensor Assembly Test
- Disconnect motor and sensor harness leads from power seat assembly (connectors P1 and P2). See Fig 1
.
- With jumper wire, connect together terminal No. 437 and terminal No. 266 of connectors P1 and P3. Connect together terminal No. 435 and terminal No. 57A of same connectors. Leave connector P3 attached. Connect one lead of ohmmeter to terminal No. 57A and other lead to terminal No. 438 of connector P1.
- Attach 2 jumper wires to terminal No. 980 and terminal No. 981 of connector P2. Connect end of one jumper to terminal No. 517 of connector P3. Tap the free jumper lead to terminal No. 57 of same connector. Seat should move. If not, reverse jumper leads.
- Continue pattern of tapping a jumper lead to move seat while observing reading of ohmmeter in between movements. Reading should alternate between no continuity (open circuit) and a resistance of less than 20 ohms.
- If sensor resistance remains consistently open or consistently less than 20 ohms after moving seat through several cycles, sensor is defective and sensor assembly should be replaced.
- Repeat steps 2) through 5) for remaining 2 sensors if necessary. For second sensor, use terminal No. 441 instead of terminal No. 438 in step 2) and terminal No. 979 and terminal No. 990 instead of terminal No. 980 and terminal No. 981 in step 3). For third sensor, use terminal No. 436 instead of terminal No. 438 in step 2) and Terminal No. 982 and terminal No. 983 instead of terminal No. 980 and terminal No. 981 in step 3).
Courtesy of FORD MOTOR CO.