Up to 08/2009

SEAT: FRONT POWER SEAT CONTROL SYSTEM (w/ Memory): 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 position control ECU, the ECU manages the signals received from the front power seat switch, and operates each motor. If the position control ECU and switch assembly receives more than 2 motor operation signals, the motor is stopped. Manual operation is restarted after the position control ECU and switch assembly receives 1 signal only.

HINT
* The position control ECU and front power seat switch are built into an assembly that is referred to as the position control ECU and switch assembly.
WIRING DIAGRAM





INSPECTION PROCEDURE

HINT
Inspection the fuses for circuits related to this system before performing the following inspection procedure.

PROCEDURE

1. CHECK CAN COMMUNICATION SYSTEM

(a) Use the Techstream to check if the CAN communication system is functioning normally How to Proceed With Troubleshooting.

OK:

CAN communication DTC is not output.

NG -- GO TO CAN COMMUNICATION SYSTEM CAN Communication System
OK -- Continue to next step.

2. CHECK FRONT POWER SEAT OPERATION

(a) Check that each function of the power seat operates normally by using the position control ECU and switch assembly Operation Check.

Result:





B -- GO TO OTHER FLOW CHART (One or more Power Seat Motors do not Operate) Up to 08/2009

A -- Continue to next step.

3. CHECK HARNESS AND CONNECTOR (POSITION CONTROL ECU AND SWITCH ASSEMBLY POWER SOURCE)

(a) Disconnect the a9 connector from the position control ECU and switch assembly.





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

Standard Voltage:





Text in Illustration





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR (POSITION CONTROL ECU AND SWITCH ASSEMBLY POWER SOURCE)
OK -- Continue to next step.

4. CHECK HARNESS AND CONNECTOR (Body ground)

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





Standard Resistance:





Text in Illustration





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE POSITION CONTROL ECU AND SWITCH ASSEMBLY Removal