Front Power Seat Does Not Operate With Front Power Seat Switch

SEAT: FRONT POWER SEAT CONTROL SYSTEM: Front Power Seat does not Operate with Front Power Seat Switch
- Front Power Seat does not Operate with Front Power Seat Switch

DESCRIPTION

When a signal is input into the front power seat switch (seat ECU), the ECU manages the signals received from the front power seat switch LH and RH, and operates each motor. When 2 or more signals are input, the motors only operate when the signals are from the slide switch and reclining switch.

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. INSPECT FUSE

(a) Remove the D P/SEAT and D MPX-B 1 fuses from the main body ECU.

(b) Remove the P P/SEAT 1 and P MPX-B fuses from the passenger side junction block.

(c) Measure the resistance according to the value(s) in the table below.

Standard resistance:

NG -- REPLACE FUSE
OK -- Continue to next step.

2. CHECK HARNESS AND CONNECTOR (FRONT POWER SEAT SWITCH - BATTERY AND BODY GROUND)

(a) Disconnect the e45*1, e46*1, e20*2 and e18*2 switch connectors.

HINT
*1: for Driver Side

*2: for Passenger Side

(b) Measure the voltage according to the value(s) in the table below.

Standard voltage:

for Driver Side

for Passenger Side

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE FRONT POWER SEAT SWITCH Disassembly