Toyota CH-R Service Manual: Rear Airbag Sensor RH Circuit Malfunction (B1630/23)

Toyota CH-R Service Manual / Supplemental Restraint Systems / Airbag System / Rear Airbag Sensor RH Circuit Malfunction (B1630/23)

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

DTC B1630/23 is stored when a malfunction is detected in the No. 2 side airbag sensor RH.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

Test Mode / Check Mode

B1630/23

Rear Airbag Sensor RH Circuit Malfunction

Any of the following conditions is met:

  • No. 2 side airbag sensor RH malfunction
  • Airbag sensor assembly malfunction
  • No. 2 side airbag sensor RH
  • 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. 2 side airbag sensor RH 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

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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.

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PROCEDURE

1.

CHECK NO. 2 SIDE AIRBAG SENSOR RH

(a) Turn the ignition switch off.

*1

No. 2 Side Airbag Sensor LH

*2

No. 1 Side Airbag Sensor RH

(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. 2 side airbag sensor RH with LH and connect the connectors.

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

(e) Clear the DTCs stored in memory.

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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.

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Body Electrical > SRS Airbag > Trouble Codes

HINT:

Codes other than DTCs B1630/23 and B1635/24 may be output at this time, but they are not related to this check.

Result

Proceed to

DTC B1630/23 is output.

A

DTC B1635/24 is output.

B

DTCs B1630/23 and B1635/24 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. 2 side airbag sensor RH and LH to their original positions and connect the connectors.

A

REPLACE AIRBAG SENSOR ASSEMBLY

B

REPLACE NO. 2 SIDE AIRBAG SENSOR RH

C

USE SIMULATION METHOD TO CHECK

    Side Airbag Sensor Assembly No.2 (RH) (B162A/2A)
    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 ...

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