Memory seat/mirrors

MEMORY SEAT/MIRRORS

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Setting Memory When the round, green memory set button is WW | depressed, terminal C324/1 of the Memory Seat 0 | Ecu (2146) is grounded through the switch contacts. This signals the ECU to record the seat @) = | sensors (X194, X195, X196, X197) and the mirror position as reported through the seat position

[TT] positions through the potentiometers of the = | Memory Mirror Actuators (M115, M123). When memory seat position switch 1 or 2 is depressed, ECU terminals C324/3 or C324/2 are grounded through the switch. This signals the ECU to record the current position as position ‘1° or ‘2’. Subsequent depressions of memory seat position switch 1 or 2 will cause the ECU to move the seat and mirrors to the position retained in memory. The memory can be cleared by setting a new position or by removing Fuse F4 of the Driver's Underseat Fuse Box (P108).

SELF TEST MODE

The Self Test Mode is a test routine the Memory Seat ECU (2146) performs when initialized. When the ECU is commanded into the Self Test Mode, it operates the seats and the mirrors in all planes of travel. Perform the self test before attempting any diagnosis of the memory seat and mirror system. The cause of a system fault can be narrowed down through observation of the seats and mirrors during the Self Test Mode. Before starting the Self Test Mode, be sure to clear away everything from the pathway of the seats.

To initialize the Self Test Mode, do the following:

Park vehicle and open driver's door.

Press round, green memory button 5 times.

Press seat position buttons 1 and 2 in the following sequence: 2—-1-1-2

Seat and mirrors will now move. The test is completed when the seat and mirrors stop in the mid —travel position.

If a motor did not operate at all during the test sequence, that motor or its wiring is faulty. motor moves in a plane and then suddenly stops, a loss of the feedback position is indicated. Proceed to the System Diagnosis for further testing.

BJ| ELECTRICAL TROUBLESHOOTING MANUAL

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