GM Service Manual Online
For 1990-2009 cars only

Circuit Description

DTC B1071 is an indication of a potential internal inflatable restraint Sensing and Diagnostic Module (SDM) malfunction.

Conditions for Setting the DTC

An internal malfunction has occurred in the SDM or an AIR BAG deployment has been commanded.

Action Taken When the DTC Sets

    • The SDM sets a diagnostic trouble code.
    • The SDM attempts to turn on the AIR BAG warning indicator.

Conditions for Clearing the DTC

This DTC cannot be cleared.

Diagnostic Aids

DTC B1071 indicates a malfunction within the SDM. Replace the SDM if DTC B1071 sets, current or history.

DTC B1071 Internal SDM Failure

Step

Action

Value(s)

Yes

No

1

Was the SIR Diagnostic System Check performed?

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Go to Step 2

Go to SIR Diagnostic System Check

2

  1. Turn the ignition switch to the LOCK position.
  2. Replace the inflatable restraint Sensing and Diagnostic Module (SDM). Refer to Inflatable Restraint Sensing and Diagnostic Module Replacement .

Did you replace the SDM?

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Go to SIR Diagnostic System Check

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