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Home >> Chevrolet >> 2007 >> Optra5 LT, Standard >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Supplemental Inflatable Restraints - DTC 052 To DTC 087 And DTC B1101 To DTC B1330 >> DTC B1326 >> Conditions for Clearing the DTC

Conditions for Clearing the DTC

The condition responsible for setting the DTC no longer exists and the scan tool Clear DTCs function is used.

CAUTION: The sensing and the diagnosis module (SDM) can maintain sufficient voltage to deploy the airbags and pretensioners for up to 1 minute after the ignition has been turned OFF and the fuse has been removed. If the airbags and pretensioners are not disconnected, do not begin service until one minute has been passed after disconnecting power to the SDM. Failure to do so may cause personal injury.
CAUTION: Do not strike or jolt the inflatable restraint sensing and diagnostic module (SDM). Before applying power to the SDM, make sure that it is securely fastened with the arrow facing toward the front of the vehicle. Failure to observe the correct installation procedure could cause SIR deployment, personal injury, or unnecessary SIR system repairs.
Step Action Value(s) Yes No
Schematic Reference:  SIR Schematics 
Connector End View Reference:  SIR Connector End Views 
1 Did you perform the Diagnostic System Check - Vehicle? - Go to Step 2  Go to Diagnostic System Check - Vehicle
2
  1. Turn the ignition switch to OFF.
  2. Wait 60 seconds for the sensing and diagnostic module (SDM) charger to discharge.
Is the SDM charger discharged?		 - Go to Step 3  -
3 Visually inspect for damage to the early crash sensor - driver (LH) wiring.
Is the early crash sensor - driver (LH) wiring damaged?		 - Go to Step 4  Go to Step 5 
4 Replace the airbag wiring.
Did you complete the replacement?		 - Go to Step 8  -
5
  1. Turn the ignition switch to OFF.
  2. Disconnect the early crash sensor connector.
  3. Disconnect the SDM connector.
  4. Test the resistance between the terminal 74, 75 of the SDM and ground.
  5. Test the resistance between the terminal 74 and 75 of the SDM connector.
Are the resistances approximately equal to the indicated value?		 ∞ Go to Step 6  Go to Step 4 
6
  1. Replace the early crash sensor - driver (LH).
  2. Verify that all components, connectors, and connector position assurances (CPAs) are properly mounted.
  3. Use the scan tool to clear the DTCs.
  4. Operate the vehicle within the Conditions for Running the DTC as specified in the text.
Does the DTC reset?		 - Go to Step 7  Go to Step 8 
7 Replace the SDM.
Did you complete the replacement?		 - Go to Step 8  -
8
  1. Reconnect all SIR system components.
  2. Verify that all components, connectors, and connector position assurances (CPAs) are properly mounted.
  3. Use the scan tool to clear the DTCs.
  4. Operate the vehicle within the Conditions for Running the DTC as specified in the text.
Does the DTC reset?		 - Go to Step 2  System OK
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