Toyota CH-R Service Manual: Side Airbag Sensor LH Circuit Malfunction (B1625/22)

Toyota CH-R Service Manual / Supplemental Restraint Systems / Airbag System / Side Airbag Sensor LH Circuit Malfunction (B1625/22)

DESCRIPTION

The side collision sensor LH circuit (bus 1) consists of the airbag sensor assembly, door side airbag sensor LH, No. 1 side airbag sensor LH and No. 2 side airbag sensor LH.

The door side airbag sensor LH, No. 1 side airbag sensor LH and No. 2 side airbag sensor LH detect impacts to the vehicle and send signals to the airbag sensor assembly to determine if the airbags and pretensioners should be deployed.

DTC B1625/22 is stored when a malfunction is detected in the No. 1 side airbag sensor LH.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

Test Mode / Check Mode

B1625/22

Side Airbag Sensor LH Circuit Malfunction

Any of the following conditions is met:

  • No. 1 side airbag sensor LH malfunction
  • Airbag sensor assembly malfunction
  • No. 1 side airbag sensor LH
  • Airbag sensor assembly

Does not apply to test/check mode
DTC Detection Conditions:
 

Vehicle Condition

Pattern 1

Pattern 2

Diagnosis Condition

Ignition switch ON

○

○

Malfunction Status

No. 1 side airbag sensor LH malfunction

○

-

Airbag sensor assembly malfunction

-

○

Detection Time

-

-

Number of Trips

1 trip

1 trip

HINT:

DTC will be output when conditions for either of the patterns in the table above are met.

WIRING DIAGRAM

Click here

CAUTION / NOTICE / HINT

NOTICE:

After turning the ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.

Click here

PROCEDURE

1.

CHECK NO. 1 SIDE AIRBAG SENSOR LH

(a) Turn the ignition switch off.

*A

w/o Occupant Classification System

*B

w/ Occupant Classification System

*1

No. 1 Side Airbag Sensor RH

*2

Airbag Sensor Assembly

(b) Disconnect the cable from the negative (-) battery terminal.

CAUTION:

Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.

(c) Interchange the No. 1 side airbag sensor LH with RH and connect the connectors.

(d) Connect the cable to the negative (-) battery terminal.

(e) Clear the DTCs stored in memory.

Click here

Body Electrical > SRS Airbag > Clear DTCs

(f) Turn the ignition switch off.

(g) Turn the ignition switch ON, and wait for at least 60 seconds.

(h) Check for DTCs.

Click here

Body Electrical > SRS Airbag > Trouble Codes

HINT:

Codes other than DTCs B1620/21 and B1625/22 may be output at this time, but they are not related to this check.

Result

Proceed to

DTC B1625/22 is output.

A

DTC B1620/21 is output.

B

DTCs B1620/21 and B1625/22 are not output.

C

(i) Turn the ignition switch off.

(j) Disconnect the cable from the negative (-) battery terminal.

CAUTION:

Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.

(k) Return the No. 1 side airbag sensor LH and RH to their original positions and connect the connectors.

A

REPLACE AIRBAG SENSOR ASSEMBLY

B

REPLACE NO. 1 SIDE AIRBAG SENSOR LH

C

USE SIMULATION METHOD TO CHECK

    Lost communication with Side Airbag Sensor RH (B1622/81,B1623/81,B1632/81,B1633/81,B1642/81,B1643/81,B166D/81,B166E/81)
    DESCRIPTION The side collision sensor RH circuit (bus 1) consists of the airbag sensor assembly, door side airbag sensor RH, No. 1 side airbag sensor RH and No. 2 side airbag sensor RH. The door ...

    Side Airbag Sensor Assembly No.2 Lost Communication (RH) (B162B/85,B162C/85)
    DESCRIPTION The side collision sensor RH circuit (bus 2) consists of the airbag sensor assembly and floor side airbag sensor RH. The floor side airbag sensor RH detects impacts to the vehicle and ...

    Other materials:

    Toyota CH-R Service Manual > Safety Connect System: Green Indicator Remains Off
    DESCRIPTION After turning the ignition switch ON, the DCM (Telematics Transceiver) will enter into self check mode. The manual (SOS) switch red indicator will illuminate for 2 seconds and turn off followed by the manual (SOS) switch green indicator illuminating and remaining on under normal o ...

    Toyota CH-R Service Manual > Navigation System: "No GPS signal" mark is displayed
    CAUTION / NOTICE / HINT NOTICE: Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Navigation System. Click here When replacing the radio ...

    Toyota CH-R Owners Manual

    Toyota CH-R Service Manual

    © 2017-2025 Copyright www.tochr.net
    0.0159