Memory Switch Circuit

SEAT: FRONT POWER SEAT CONTROL SYSTEM (w/ Memory): Memory Switch Circuit

Memory Switch Circuit

DESCRIPTION

The seat memory switch sends signals to the front power seat switch (memory seat ECU and switch) to memorize a given seat position. The memory system does not use a position sensor. The seat position is detected by counting the pulses that are output when the motor turns. If there is no pulse output from the motor, the motor will stop operating. The seat memory switch is later used to send signals to the front power seat switch to return the seat to one of the memorized positions.
The power seat memory operation is performed only when the ignition switch is in the ON position and the shift lever is in the P position.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. INSPECT SEAT MEMORY SWITCH




(a) Disconnect the seat memory switch connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance :





NG -- REPLACE SEAT MEMORY SWITCH
OK -- Continue to next step.

2. CHECK HARNESS AND CONNECTOR (MEMORY SEAT ECU - SEAT MEMORY SWITCH)




(a) Disconnect the front power seat switch connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance :





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE