Toyota Corolla Cross: Right Side Restraints Sensor 5 / Left Side Restraints Sensor 5 Signal Compare Failure (B166A62)

DESCRIPTION

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	Warning Indicate	Test Mode / Check Mode
B166A62	Right Side Restraints Sensor 5 / Left Side Restraints Sensor 5 Signal Compare Failure	The difference between the pressure detected by the side airbag pressure sensor LH and the side airbag pressure sensor RH exceeds a certain value a certain number of times.	Side airbag pressure sensor LH Side airbag pressure sensor RH Airbag ECU assembly	Comes on	Does not apply to test/check mode

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

1.

CHECK DTC

(a) Check for DTCs.

Body Electrical > SRS Airbag > Trouble Codes

Result	Proceed to
No DTCs in the table below are output	A
Any of the DTCs in the table below are output	B

Malfunction Content	System	Relevant DTC
Side collision sensor circuit (bus 1) malfunction	Airbag system	B009B00	Left Side Restraints Sensor 5 Signal Plausibility Failure (Detection for Sensor)
		B009B09	Left Side Restraints Sensor 5 Component Failure
		B009B64	Left Side Restraints Sensor 5 Signal Plausibility Failure
		B009B83	Left Side Restraints Sensor 5 Value of Signal Protection Calculation Incorrect
		B009B84	Left Side Restraints Sensor 5 Signal Below Allowable Range
		B009B85	Left Side Restraints Sensor 5 Signal Above Allowable Range
		B009B87	Left Side Restraints Sensor 5 Missing Message
		B009B96	Left Side Restraints Sensor 5 Component Internal Failure
		B009E00	Right Side Restraints Sensor 5 Signal Plausibility Failure (Detection for Sensor)
		B009E09	Right Side Restraints Sensor 5 Component Failure
		B009E64	Right Side Restraints Sensor 5 Signal Plausibility Failure
		B009E83	Right Side Restraints Sensor 5 Value of Signal Protection Calculation Incorrect
		B009E84	Right Side Restraints Sensor 5 Signal Below Allowable Range
		B009E85	Right Side Restraints Sensor 5 Signal Above Allowable Range
		B009E87	Right Side Restraints Sensor 5 Missing Message
		B009E96	Right Side Restraints Sensor 5 Component Internal Failure

HINT:

If DTCs in the table above are output, troubleshoot those DTCs first.

B

GO TO DIAGNOSTIC TROUBLE CODE CHART

A

2.

CLEAR DTC

(a) Turn the ignition switch off.

(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.

(c) Replace the side airbag pressure sensor LH with a new one or known good one.

Click here

HINT:

• When using a new part, since the side airbag pressure sensor RH and LH have the same part number, prepare either one.
• Use the prepared side airbag pressure sensor to check the side airbag pressure sensor RH as well.

(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.

NEXT

3.	CHECK SIDE AIRBAG PRESSURE SENSOR LH

(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
B166A62 is not output	A
B166A62 is output	B

HINT:

Codes other than DTC B166A62 may be output at this time, but they are not related to this check.

(c) Turn the ignition switch off.

(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) Restore the side airbag pressure sensor LH that was replaced for testing to its original location.

A

REPLACE SIDE AIRBAG PRESSURE SENSOR LH

B

4.

CLEAR DTC

(a) Replace the side airbag pressure sensor RH with a new one or known good one.

Click here

HINT:

• When using a new part, since the side airbag pressure sensor LH and RH have the same part number, prepare either one.
• Use the prepared side airbag pressure sensor to check the side airbag pressure sensor LH as well.

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

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

(d) Clear the DTCs stored in memory.

Body Electrical > SRS Airbag > Clear DTCs

(e) Turn the ignition switch off.

NEXT

5.	CHECK SIDE AIRBAG PRESSURE SENSOR LH

(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
B166A62 is not output	A
B166A62 is output	B

HINT:

Codes other than DTC B166A62 may be output at this time, but they are not related to this check.

(c) Turn the ignition switch off.

(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) Restore the side airbag pressure sensor RH that was replaced for testing to its original location.

A

REPLACE SIDE AIRBAG PRESSURE SENSOR LH

B

REPLACE AIRBAG ECU ASSEMBLY

READ NEXT: