GM Service Manual Online
For 1990-2009 cars only

Object Number: 389962  Size: MF
Cell 10: ILLUM, PARK LP Fuses
Cell 10: TURN, SIR and GAUGES Fuses
Cell 10: TURN, SIR and GAUGES Fuses
Cell 51: Power and Ground
SIR Components
Cell 47: IP Module Switch
SIR Handling Caution
Handling ESD Sensitive Parts Notice
SIR Schematic Icons
Cell 14: G203 and G204 (Pickup)
Handling ESD Sensitive Parts Notice
Cell 14: G203 and G204 (Pickup)

Circuit Description

In the ON position, the ignition switch applies battery voltage to the AIR BAG warning lamp and to the IGNITION 1 input terminal 10. The inflatable restraint sensing and diagnostic module (SDM) responds by flashing the AIR BAG warning lamp 7 times. The SDM monitors the lamp driver output by comparing the output state at the AIR BAG INDICATOR CONTROL terminal 7 to the microprocessor commanded state.

Conditions for Setting the DTC

The output state at the INFLATABLE RESTRAINT INDICATOR terminal 7 does not match the commanded state of the lamp driver for 400 milliseconds.

The CONTINUOUS MONITORING test inspects for this DTC. This test occurs when IGNITION 1 is within the normal operating voltage range.

Action Taken When the DTC Sets

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

Conditions for Clearing the DTC

    • Current DTC--The output state at the INFLATABLE RESTRAINT INDICATOR terminal 7 matches the commanded state of the lamp driver for 400 milliseconds.
    • History DTC
       - You issue a scan tool CLEAR CODES command.
       - After 250 malfunction free ignition cycles have occurred.

Diagnostic Aids

Refer to AIR BAG Warning Lamp Comes On Steady and AIR BAG Warning Lamp Does Not Come On to diagnose warning lamp circuit malfunctions.

DTC B1061 -- Lamp Circuit Failure

Step

Action

Value(s)

Yes

No

1

Was the SIR Diagnostic System Check performed?

--

Go to Step 2

Go to SIR Diagnostic System Check

2

  1. Malfunctions within the AIR BAG warning lamp circuitry may set this DTC. These malfunctions are addressed via the SIR Diagnostic System Check. Failure to properly perform the SIR Diagnostic System Check may result in misdiagnosis.
  2. • When AIR BAG warning lamp comes ON steady, refer to AIR BAG Warning Lamp Comes On Steady .
    • When AIR BAG warning lamp comes does not come ON, refer to AIR BAG Warning Lamp Does Not Come On .
  3. Turn the ignition switch to the RUN position.
  4. Clear the SIR DTC codes.
  5. Request the SIR DTC display.

Is DTC B1061 set?

--

Go to Sensing and Diagnostic Module Integrity Check

Go to SIR Diagnostic System Check