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Conditions for Setting the DTC

WARNING: This page is about a different car, the 2005 Suzuki Swift +, 2005 Pontiac Wave, and 2005 Chevrolet Aveo. However, it is still accessible from the selected car via links, so may be relevant.
DTC 012

Step Action Values Yes No
CAUTION: Refer to SDM Voltage After Ignition Is Turned OFF Caution in Cautions and Notices.
CAUTION: Refer to Sensing and Diagnostic Module Handling Caution in Cautions and Notices.
1 Perform the Diagnostic System Check - SIR.
Is the Diagnostic System Check - SIR complete?		 - Go to Step 2  Go to Diagnostic System Check - SIR 
2
  1. Disconnect the battery negative cable.
  2. Wait 1 minute for the sensing and diagnostic module (SDM) capacitor to discharge.

    The capacitor supplies reserve power to deploy the driver seat belt pretensioner even if the battery has been disconnected.

  3. Visually inspect the supplemental inflatable restraint (SIR) wiring harness.
Is there any visible damage to the SIR wiring harness?		 - Go to Step 3  Go to Step 4 
3
  1. Replace the SIR wiring harness.
  2. Reconnect the negative battery cable.
Is the repair complete?		 - Go to Diagnostic System Check - SIR  -
4
  1. Disconnect the electrical connector for the driver seat belt pretensioner module.
  2. Disconnect the electrical connector at the SDM.

    The shorting bar at the disconnected SDM connector will create a complete circuit between the wires from the driver seat belt pretensioner module.

  3. Use a multimeter to measure the voltage at one of the terminals on the SDM side of the SIR wiring harness connector for the driver seat belt pretensioner module.
Is the voltage greater than the specified value?		 0 V Go to Step 3  Go to Step 5 
5
  1. Replace the SDM.
  2. Reconnect the negative battery cable.
  3. Set the scan tool to CODE ERASE.
  4. Perform the Diagnostic System Check - SIR.
Is DTC 012 still shown as a current fault?		 - Go to Step 6  System OK
6
  1. Replace the driver seat belt pretensioner module.
  2. Reconnect the negative battery cable.
Is the repair complete?		 - Go to Diagnostic System Check - SIR  -
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