Lexus NX: Kick Sensor Circuit (B2205)

DESCRIPTION

B2205 is output when the multiplex network door ECU detects that the kick door control sensor is stuck on.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

B2205

Kick Sensor Circuit

One of the following conditions is met for approximately 60 seconds or more:

  • The multiplex network door ECU detects a kick door control sensor short circuit
  • Multiplex network door ECU malfunction
  • Kick door control sensor malfunction
  • kick door control sensor
  • Multiplex network door ECU
  • Harness or connector

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

  • Before troubleshooting, make sure that the kick door control sensor is not damaged.
  • Before troubleshooting, be sure to read Precautions for Hands Free Power Back Door.

    Click here

  • If the multiplex network door ECU has been removed and installed or replaced, or if any of the connectors has been disconnected, initialize the power back door system.

    Click here

  • After performing work, using the Techstream, read the Data List item "Kick Sensor Connection" and check that the kick door control sensor is connected.

    Click here

  • Check the smart access system with push-button start (for Entry Function) first before troubleshooting the power back door system.

    Click here

PROCEDURE

1.

CHECK FOR DTC

(a) Clear the DTCs.

Click here

Body Electrical > Back Door > Clear DTCs

(b) Wait for approximately 60 seconds.

(c) Check for DTCs.

Click here

Body Electrical > Back Door > Trouble Codes

Result

Proceed to

DTC is not output

A

DTC B2205 is output

B

A

USE SIMULATION METHOD TO CHECK

B

2.

CHECK FOR DTC

(a) Disconnect the W9 kick door control sensor connector.

(b) Wait for approximately 60 seconds.

(c) Clear the DTCs.

Click here

Body Electrical > Back Door > Clear DTCs

(d) Check for DTCs.

Click here

Body Electrical > Back Door > Trouble Codes

Result

Proceed to

DTC is not output

A

DTC B2205 is output

B

A

REPLACE KICK DOOR CONTROL SENSOR

B

3.

CHECK HARNESS AND CONNECTOR (MULTIPLEX NETWORK DOOR ECU - KICK DOOR CONTROL SENSOR)

(a) Disconnect the Y26 multiplex network door ECU connector.

(b) Disconnect the W9 kick door control sensor connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

Y26-14 (KSIN) or W9-3 (KSOT) - Body ground

Always

10 kΩ or higher

OK

REPLACE MULTIPLEX NETWORK DOOR ECU

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

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