DTC B0001-11: Short to Ground in the Driver Airbag First Inflator

DTC B0001-11 Overview

If a current (or voltage) on the detection line inside the SRS unit is higher than a specified value, the SRS unit determines an abnormality and stores the DTC.

DTC B0001-11 Inspection Outline

The components to be tested are indicated by a dotted line.

Inspection Items

  1. Driver's Airbag Inspection
  2. Cable Reel Inspection
  3. External Circuit LA1+, LA1- Shorted Wire Inspection
  4. SRS Unit Inspection

1. Driver's Airbag Inspection

NOTICE:

Before disconnecting the SRS related connector, do the 12 volt battery terminal disconnection procedure and wait for at least 3 minutes.

NOTE:

Since there is no direct method to test the component itself, troubleshooting is performed on the related components.

DTC B0001-11 Test Procedure

Driver's airbag circuit inspection
  • Preparation
Driver's airbag first inflator 2P connector: disconnected

  • Procedure

1. Perform the confirmation procedure.

  • Normal Conditions
DTC B0001-11 is not indicated.
  • ■ Results
  • If it is normal, there is a problem with the driver's airbag.
  • If it is abnormal, there is a problem with other related components.

2. Cable Reel Inspection

■ Test Procedure
  • Preparation
-Driver's airbag first inflator 2P connector: disconnected
-Cable reel connector B (4P): disconnected

  • Procedure

-Perform the inspection according to the following table.

  • ■ Results
If it is abnormal, there is a problem with the cable reel.

3. External Circuit LA1+, LA1- Shorted Wire Inspection

  • Test Procedure
  • Preparation
-SRS unit connector A (43P): disconnected
-Cable reel connector B (4P): disconnected
  • Procedure
-Perform the inspection according to the following table.

  • Results
If abnormal, there is a problem in the circuit.

4. SRS Unit Inspection

  • Test Procedure
If the other inspection item(s) indicated a normal condition, then it is determined that the remaining SRS unit is the cause.

  • Results

There is a problem with the SRS unit.

Confirmation Procedure

Turn the vehicle to the ON mode, then wait for 10 seconds.

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