Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: PBD Unit Pulse Sensor RH Circuit No Signal (B222731)

Toyota Corolla Cross (2022-2025) Service Manual / Vehicle Exterior / Door / Hatch / Power Back Door System / PBD Unit Pulse Sensor RH Circuit No Signal (B222731)

DESCRIPTION

This DTC is output when the multiplex network door ECU detects a power back door unit assembly set RH pulse malfunction.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

B222731

PBD Unit Pulse Sensor RH Circuit No Signal

Multiplex network door ECU detects power back door unit assembly set RH pulse malfunction

  • Multiplex network door ECU
  • Power back door unit assembly set RH
  • Harness or connector

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

If the replacement, removal and installation of the multiplex network door ECU or disconnection of the connectors of the multiplex network door ECU has been performed, initialize the power back door system.

Click here

PROCEDURE

1.

CLEAR DTC

(a) Clear the DTCs.

Body Electrical > Back Door > Clear DTCs
NEXT

2.

CHECK FOR DTC

(a) Check for DTCs.

Body Electrical > Back Door > Trouble Codes

Result

Proceed to

B222731 is output

A

B222731 is not output

B

B

USE SIMULATION METHOD TO CHECK

A

3.

CHECK HARNESS AND CONNECTOR (MULTIPLEX NETWORK DOOR ECU - POWER BACK DOOR UNIT ASSEMBLY SET RH)

(a) Disconnect the U40 multiplex network door ECU connector.

(b) Disconnect the U13 power back door unit assembly set RH connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

U40-10 (DSG2) - U13-4 (DSG2)

Always

Below 1 Ω

U40-3 (DSV2) - U13-3 (DSV2)

Always

Below 1 Ω

U40-12 (DS22) - U13-6 (DS22)

Always

Below 1 Ω

U40-6 (DS12) - U13-5 (DS12)

Always

Below 1 Ω

U40-10 (DSG2) or U13-4 (DSG2) - Body ground

Always

10 kΩ or higher

U40-3 (DSV2) or U13-3 (DSV2) - Body ground

Always

10 kΩ or higher

U40-12 (DS22) or U13-6 (DS22) - Body ground

Always

10 kΩ or higher

U40-6 (DS12) or U13-5 (DS12) - Body ground

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

4.

CHECK MULTIPLEX NETWORK DOOR ECU

(a) Disconnect the U13 power back door unit assembly set RH connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

U13-4 (DSG2) - Body ground

Always

Below 1 Ω

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

U13-5 (DS12) - Body ground

Always

7 V or higher

U13-6 (DS22) - Body ground

Always

7 V or higher

U13-3 (DSV2) - Body ground

Always

7 V or higher

NG

REPLACE MULTIPLEX NETWORK DOOR ECU

OK

5.

CHECK POWER BACK DOOR UNIT ASSEMBLY SET RH

(a) Using an oscilloscope, check the waveform of each terminal from the rear of the U40 multiplex network door ECU connector.

*a

Component with harness connected

(Multiplex Network Door ECU)

*b

Waveform (CH1)

*c

Waveform (CH2)

-

-

Measurement Condition:

Item

Condition

Tester Connection

  • CH1: U40-6 (DS12) - Body ground
  • CH2: U40-12 (DS22) - Body ground

Tool setting

2 V/DIV., 2 ms./DIV.

Vehicle condition

Open and close the back door by hand.

HINT:

The period changes in accordance to the speed at which the back door is opened and closed by hand.

OK:

The waveform displayed is as shown in the illustration.

OK

REPLACE MULTIPLEX NETWORK DOOR ECU

NG

REPLACE POWER BACK DOOR UNIT ASSEMBLY SET RH

    READ NEXT:

     PBD Touch Sensor LH Circuit Circuit Open (B222A13)

    DESCRIPTION This DTC is output when the multiplex network door ECU detects a power back door sensor assembly LH touch sensor malfunction. DTC No. Detection Item DTC Detection Condition Tr

     PBD Touch Sensor RH Circuit Circuit Open (B222B13)

    DESCRIPTION This DTC is output when the multiplex network door ECU detects a power back door sensor assembly RH touch sensor malfunction. DTC No. Detection Item DTC Detection Condition Tr

     Back Door Closer General Electrical Failure (B225001)

    DESCRIPTION The multiplex network door ECU receives signals from the latch switch, initial switch, pawl switch and back door courtesy switch, which are built into the back door lock assembly. Based on

    SEE MORE:

     Data List / Active Test

    DATA LIST / ACTIVE TEST DATA LIST NOTICE: In the following table, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not. HINT: Using the GTS to read the Data List allows the values or states of

     Passenger Frontal Stage 2 Deployment Control Circuit Short to Battery (B001112)

    DESCRIPTION DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Test Mode / Check Mode B001112 Passenger Frontal Stage 2 Deployment Control Circuit Short to Battery One of the following conditions is met: The airbag ECU assembly

    © 2020-2025 Copyright www.tcorollacross.com