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Conditions for Setting the DTC

DTC 031

Step Action 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 negative battery cable.
  2. Wait 1 minute for the SDM capacitor to discharge.
  3. Visually inspect the supplemental inflatable restraint (SIR) wiring harness.
Is there any visible damage to the SIR harness?		 Go to Step 4  Go to Step 3 
3
  1. Disconnect the negative battery cable.
  2. Replace the sensing and diagnostic module (SDM).
Is the repair complete?		 Go to Diagnostic System Check - SIR  -
4
  1. Replace the SIR wiring harness.
  2. Reconnect the negative battery cable.
Is the repair complete?		 Go to Diagnostic System Check - SIR  -
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