Pinout Values and Diagnostic Parameters

SEAT: FRONT POWER SEAT CONTROL SYSTEM: TERMINALS OF ECU

1. CHECK POSITION CONTROL ECU (for Driver Side)





(a) Disconnect the P21 and P22 ECU connectors.

(b) Measure the voltage and resistance of the wire harness side connectors.





* If the result is not as specified, there may be a malfunction on the wire harness side.

(c) Reconnect the P21 and P22 ECU connectors.

(d) Initialize the front power seat Programming and Relearning.

(e) Measure the voltage of the connectors.









* If the result is not as specified, the ECU may have a malfunction.

2. CHECK POSITION CONTROL ECU (for Front Passenger Side)





(a) Disconnect the P23 and P24 ECU connectors.

(b) Measure the voltage and resistance of the wire harness side connectors.





* If the result is not as specified, there may be a malfunction on the wire harness side.

(c) Reconnect the P23 and P24 ECU connectors.

(d) Initialize the front power seat Programming and Relearning.

(e) Measure the voltage of the connectors.









* If the result is not as specified, the ECU may have a malfunction.

3. CHECK MULTIPLEX NETWORK DOOR ECU FRONT LH (DRIVER DOOR ECU)





(a) Disconnect the D23 ECU connector.

(b) Measure the voltage and resistance of the wire harness side connector.





* If the result is not as specified, there may be a malfunction on the wire harness side.

(c) Reconnect the D23 ECU connector.

(d) Measure the voltage of the connector.





* If the result is not as specified, the ECU may have a malfunction.

4. CHECK MULTIPLEX NETWORK DOOR ECU FRONT RH (FRONT PASSENGER DOOR ECU)





(a) Disconnect the P43 ECU connector.

(b) Measure the voltage and resistance of the wire harness side connector.





* If the result is not as specified, there may be a malfunction on the wire harness side.

(c) Reconnect the P43 ECU connector.

(d) Measure the voltage of the connector.





* If the result is not as specified, the ECU may have a malfunction.