Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Kick Sensor Circuit (B2205)

Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual / Vehicle Exterior / Door / Hatch / Power Back Door System (w/ Outside Door Control Switch) / 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
  • Wire 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 have 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 (for Entry Function) first before troubleshooting the power back door system.

    Click here

PROCEDURE

1.

CHECK FOR DTC

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Back Door / Trouble Codes.

(e) Clear the DTCs.

Body Electrical > Back Door > Clear DTCs

(f) Recheck for DTCs.

Body Electrical > Back Door > Trouble Codes

OK:

DTC B2205 is not output.

OK

USE SIMULATION METHOD TO CHECK

NG

2.

CHECK FOR DTC

(a) Disconnect the Y9 kick door control sensor connector.

(b) Wait for approximately 60 seconds.

(c) Clear the DTCs.

Body Electrical > Back Door > Clear DTCs

(d) Check for DTCs.

Body Electrical > Back Door > Trouble Codes

OK:

DTC B2205 is not output.

OK

REPLACE KICK DOOR CONTROL SENSOR

NG

3.

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

(a) Disconnect the Z16 multiplex network door ECU connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

Z16-14 (KSIN) or Y9-3 (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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    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual

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