Inspection Procedure

WARNING: This page is about a different car, the 2006 Toyota 4Runner. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT FRONT POWER SEAT SWITCH (MEMORY SEAT ECU)

Disconnect the front power seat switch connector.

Measure the voltage according to the value(s) in CONNECTOR TERMINAL VOLTAGE SPECIFICATION .

Standard:

CONNECTOR TERMINAL VOLTAGE SPECIFICATION

Tester Connection	Condition	Specified Condition
P28-7 (P) - Body ground	Ignition switch is in ON position and shift position is in P position	10 to 14 V

Fig 1: Inspecting Front Power Seat Switch

NG: Go to step 2

OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

INSPECT PARK/NEUTRAL POSITION SWITCH ASSY
1. Inspect the park/neutral position switch ASSY (1GR-FE: See DTC P0705 TRANSMISSION RANGE SENSOR CIRCUIT MALFUNCTION (PRNDL INPUT) , 2UZ-FE: See DTC P0705 TRANSMISSION RANGE SENSOR CIRCUIT MALFUNCTION (PRNDL INPUT) ).
NG: REPLACE PARK/NEUTRAL POSITION SWITCH ASSY

OK: REPAIR OR REPLACE HARNESS OR CONNECTOR (PARK/NEUTRAL POSITION SWITCH ASSY - MEMORY SEAT ECU)