Toyota Avalon Cod B1141

Total OBD & ECU Auto Diagnostics

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SSL-ESL

H01008 AB0119 H01053

SSL-ESL

Airbag Sensor Assembly

CHECK:

(a) Turn the ignition switch to ON.

(b) For the connector (on the airbag sensor assembly side) between the side airbag sensor assembly (LH) and the airbag sensor assembly, measure the voltage between body ground and each of SSL+, ESL, VUPL and SSL-.

Voltage: O V

Repair or replace harness or connector between side airbag sensor assembly (LH) and air-bag sensor assembly.

H08271

Side Air

bag Sensor Assembly (LH)

L

^ Airbag Sensor Assembly

DLC3

H01007 AB0119

H10600 H01066

^JUUUUUL

H01007 AB0119

H10600 H01066

H12033

PREPARATION:

(a) Connect the connector to the side airbag sensor assembly (LH).

(b) Connect the connector to the airbag sensor assembly.

(c) Connect negative (-) terminal cable to the battery, and wait at least for 2 seconds.

CHECK:

(a) Turn the ignition switch to ON, and wait at least for 20 seconds.

(b) Clear the DTC stored in memory (See step 5 on page DI-509).

(c) Turn the ignition switch to LOCK, and wait at least for 20 seconds.

(d) Turn the ignition switch to ON, and wait at least for 20 seconds.

DTC B1141/33 is not output.

HINT:

Codes other than code B1141/33 may be output at this time, but they are not relevant to this check.

From the results of the above inspection, the malfunctioning part can now be considered normal. To make sure of this, use the simulation method to check.

Side Airbag Sensor Assembly (RH)

Airbag

Sensor

Assembly

DLC3

DLC3

H01007 AB0119

H10600 H01066

DTC B1141/33

^JUUUUUL

H01007 AB0119

H10600 H01066

H12033

PREPARATION:

(a) Turn the ignition switch to LOCK.

(b) Disconnect negative (-) terminal cable from the battery, and wait at least for 90 seconds.

(c) Disconnect the side airbag sensor assembly (LH) from the connector and connect the side airbag sensor assembly (RH) to the connector.

(d) Connect negative (-) terminal cable to the battery, and wait at least for 2 seconds.

CHECK:

(a) Turn the ignition switch to ON, and wait at least for 20 seconds.

(b) Clear the DTC stored in memory (See step 5 on page DI-509).

(c) Turn the ignition switch to LOCK, and wait at least for 20 seconds.

(d) Turn the ignition switch to ON, and wait at least for 20 seconds.

DTC B1141/33 is not output.

HINT:

Codes other than code B1141/33 may be output at this time, but they are not relevant to this check.

ON

DLC3

DLC3

H01012 AB0119

H10600 H01065

DTC B1140/32

H01012 AB0119

H10600 H01065

H13119

PREPARATION:

(a) Turn the ignition switch to LOCK.

(b) Disconnect negative (-) terminal cable from the battery, and wait at least for 90 seconds.

(c) Connect the side airbag sensor assembly (LH) to the connector that the side airbag sensor assembly (RH) was connected to.

(d) Connect negative (-) terminal cable to the battery, and wait at least for 2 seconds.

CHECK:

(a) Turn the ignition switch to ON, and wait at least for 20 seconds.

(b) Clear the DTC stored in memory (See step 5 on page DI-509).

(c) Turn the ignition switch to LOCK, and wait at least for 20 seconds.

(d) Turn the ignition switch to ON, and wait at least for 20 seconds.

DTC B1140/32 is not output.

HINT:

Codes other than code B1140/32 may be output at this time, but they are not relevant to this check.

From the results of the above inspection, the malfunctioning part can now be considered normal. To make sure of this, use the simulation method to check.

DI6PW-16

DTC

B1156/B1157/15

Front Airbag Sensor (RH) Malfunction

circuit description

The front airbag sensor (RH) circuit consists of the airbag sensor assembly and front airbag sensor (RH).

For details of the function of each component, see OPERATION on page RS-2.

DTC B1156/B1157/15 is recorded when a malfunction is detected in the front airbag sensor (RH) circuit.

DTC No.

DTC Detecting Condition

Trouble Area

B1156/B1157/15

• Front airbag sensor (RH) malfunction

• Airbag sensor assembly

• Instrument panel wire harness

• Engine room No. 2 wire harness

wiring diagram

Front Airbag Sensor (RH)

Airbag Sensor Assembly

BR-W

4 20

BR-W

Airbag Sensor Assembly

4 20

BR-W

(

\

+SR

-SR

V

y

inspection procedure

Front Airbag Sensor (RH)

Airbag

Sensor

Assembly

Airbag Sensor Assembly x

HQ3355 ABQ119 HQ3363

H03445

CHECK:

(a) Turn the ignition switch to ON.

(b) For the connector (on the airbag sensor assembly side) between the front airbag sensor (RH) and the airbag sensor assembly, measure the voltage between body ground and each of +SR and -SR.

Voltage: Below 1 V

H03445

Front Airbag Sensor (RH)

Airbag

Sensor

Assembly

Airbag Sensor Assembly nnn

HQ3353 HQ3361

H03443

CHECK:

For the connector (on the airbag sensor assembly side) between the front airbag sensor (RH) and the airbag sensor assembly, measure the resistance between body ground and each of +SR and -SR. OK:

Resistance: 1 MQ or Higher

Check wire harness.

Front Airbag Sensor (RH)

Front Airbag Sensor (RH)

H03355 HG3356

Airbag Sensor Assembly

Airbag Sensor Assembly

H09518

CHECK:

For the connector (on the airbag sensor assembly side) be tween the front airbag sensor (RH) and the airbag sensor as sembly, measure the resistance between +SR and -SR. OK:

Resistance: 1 MQ or Higher

Check wire harness.

Front Airbag Sensor (RH)

Front Airbag Sensor (RH)

B1156 Front Airbag

HG3353

HG336G HG3356

H1R29R

HG3353

HG336G HG3356

H1R29R

PREPARATION:

Using a service wire, connect +SR and -SR of the connector (on the front airbag sensor (RH) side) between the airbag sensor assembly and the front airbag sensor (RH). CHECK:

For the connector (on the airbag sensor assembly side) between the front airbag sensor (RH) and the airbag sensor assembly, measure the resistance between +SR and -SR. OK:

Resistance: Below 1 Q

Front Airbag Sensor (RH)

H01062

0=ffl=0

Airbag

Sensor

Assembly

H08346

CHECK:

For the connector of the front airbag sensor (RH), measure the resistance between +SR and -SR.

Resistance: 820 Q

Front Airbag Sensor (RH)

Check airbag sensor assembly.

Front Airbag Sensor (RH)

^ Airbag Sensor Assembly

DLC3

DLC3

CG TC

HO2757 ABO119 H1O6OOHO1O63

DTC B1156/B1157/15

_njiiuirui_

CG TC

HO2757 ABO119 H1O6OOHO1O63

PREPARATION:

(a) Turn the ignition switch to LOCK.

(b) Disconnect negative (-) terminal cable from the battery, and wait at least for 90 seconds.

(c) Connect the front airbag sensor (RH) connector and air-bag sensor assembly connector.

(d) Connect negative (-) terminal cable to the battery, and wait at least for 2 seconds.

CHECK:

(a) Turn the ignition switch to ON, and wait at least for 20 seconds.

(b) Clear the DTC stored in memory (See page DI-509).

(c) Turn the ignition switch to LOCK, and wait at least for 20 seconds.

(d) Turn the ignition switch to ON, and wait at least for 20 seconds.

DTC B1156/B1157/15 is not output.

HINT:

Codes other than code B1156/B1157/15 may be output at this time, but they are not relevant to this check.

H10638

From the results of the above inspection, the malfunctioning part can now be considered normal. To make sure of this, use the simulation method to check.

Front Airbag Instrument Panel Sensor (RH) Wire Harness

H03354 AB0119 H03364

H08348

OK

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