Toyota Corolla Cross: Right Side Restraints Sensor 2 Signal Below Allowable Range (B009784)

Toyota Corolla Cross (2022-2024) Service Manual / Vehicle Interior / Supplemental Restraint Systems / Airbag System / Right Side Restraints Sensor 2 Signal Below Allowable Range (B009784)

DESCRIPTION

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	Warning Indicate	Test Mode / Check Mode
B009784	Right Side Restraints Sensor 2 Signal Below Allowable Range	One of the following conditions is met: No. 1 side airbag sensor RH malfunction Airbag ECU assembly malfunction	No. 1 side airbag sensor RH Airbag ECU assembly	Comes on	Does not apply to test/check mode

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

Warning Indicate

Test Mode / Check Mode

B009784

Right Side Restraints Sensor 2 Signal Below Allowable Range

One of the following conditions is met:

No. 1 side airbag sensor RH malfunction
Airbag ECU assembly malfunction

No. 1 side airbag sensor RH
Airbag ECU assembly

Comes on

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 RH malfunction	○	-
Malfunction Status	Airbag ECU 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 the ignition switch is turned off, there may be a waiting time before disconnecting the negative (-)battery terminal.

Click here

HINT:

When disconnecting and reconnecting the battery, there is an automatic learning function that completes learning when the respective system is used.

Click here

PROCEDURE

CLEAR DTC

(a) Turn the ignition switch off.

*1	No. 1 Side Airbag Sensor LH
*2	Airbag ECU Assembly

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

CAUTION:

Wait at least 60 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.

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

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

(f) Clear the DTCs stored in memory.

Body Electrical > SRS Airbag > Clear DTCs

(g) Turn the ignition switch off.

2.	CHECK NO.1 SIDE AIR BAG SENSOR RH

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

(b) Check for DTCs.

Body Electrical > SRS Airbag > Trouble Codes

Result	Proceed to
B009784 is output	A
B009284 is output	B
B009284 and B009784 are not output	C

HINT:

Codes other than DTCs B009284 and B009784 may be output at this time, but they are not related to this check.

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

CAUTION:

Wait at least 60 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.

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

REPLACE AIRBAG ECU ASSEMBLY

REPLACE NO.1 SIDE AIR BAG SENSOR RH

USE SIMULATION METHOD TO CHECK

SEE MORE:

How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT HINT: Use these procedures to troubleshoot the CXPI communication system. *: Use the GTS. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP NEXT 2. INSP

Data List / Active Test

DATA LIST / ACTIVE TEST DATA LIST (a) In accordance with the screen on the GTS, display the data list screen and check the data. Body Electrical > Navigation System > Data List Tester Display Measurement Item Range Normal Condition D

Toyota Corolla Cross: Right Side Restraints Sensor 2 Signal Below Allowable Range (B009784)

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Right Side Restraints Sensor 2 Signal Above Allowable Range (B009785)

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How To Proceed With Troubleshooting

Data List / Active Test