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Home >> Chevrolet >> 2001 >> Venture Base, Van Passenger >> Repair and Diagnosis >> External Pages >> Different car >> Section 824 (Supplemental Inflatable Restraint System) >> Diagnostic Information and Procedures >> DTC B0022, B0024, or B0026 >> Test Description

Test Description

WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the step numbers on the diagnostic table.

  1. 5:  This step tests to see if the malfunction is caused by the steering wheel module or by the steering wheel module coil.
  2. 7:  This step tests to see what DTCs are present. If DTC B0022 is present, test for a short between the steering wheel module high and low circuits. If DTC B0024 is present, test the steering wheel module high and low circuits for an open and for high resistance. If DTC B0026 is present, test the steering wheel module high and low circuits for an open and for high resistance.
DTC B0022, B0024, or B0026

Step Action Yes No
Schematic Reference: SIR Schematics 
1 Did you perform the Diagnostic System Check-SIR? Go to Step 2  Go to Diagnostic System Check - SIR 
2
  1. Turn OFF the ignition.
  2. Disconnect the steering wheel module coil connector. Refer to Inflatable Restraint Steering Wheel Module Coil Replacement .
  3. Inspect the component and harness sides of the steering wheel module coil connector for damage or corrosion that may cause the malfunction. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Does the connector exhibit any signs of damage or corrosion?		 Go to Step 3  Go to Step 4 
3
  1. If the component side of the steering wheel module coil connector is damaged, the steering wheel module coil must be replaced. Refer to Inflatable Restraint Steering Wheel Module Coil Replacement .
  2. If the wiring harness side of steering wheel module coil connector is damaged, replace the harness side of the connector. Refer to Connector Repairs in Wiring Systems.
Did you complete the repair?		 Go to Step 11  -
4
  1. Install the J 38715-A  SIR Driver/Passenger Load Tool to the harness side of the steering wheel module coil connector. See Special Tools and Equipment . Use BASE OF COLUMN connector.
  2. Turn ON the ignition, with the engine OFF.
  3. Use the scan tool to request SIR DTCs displayed.
Does the scan tool indicate that DTC B0022, B0024, or B0026 are current?		 Go to Step 6  Go to Step 5 
5 
  1. Turn OFF the ignition.
  2. Disconnect and remove the J 38715-A  . See Special Tools and Equipment .
  3. Connect the steering wheel module coil connector.
  4. Remove the steering wheel module. Refer to Inflatable Restraint Steering Wheel Module Replacement .
  5. Use the J 38715-30A adapter to connect the J 38715-A  to the upper steering wheel module coil connector on top of the steering column. See Special Tools and Equipment . Use STEERING COLUMN connector.
  6. Turn ON the ignition, with the engine OFF.
  7. Use the scan tool to request SIR DTCs displayed.
Does the scan tool indicate that DTC B0022, B0024, or B0026 are current?		 Go to Step 9  Go to Step 8 
6
  1. Turn OFF the ignition.
  2. Disconnect and remove the J 38715-A  and adapter. See Special Tools and Equipment .
  3. Disconnect the inflatable restraint sensing and diagnostic module (SDM) connector. Refer to Inflatable Restraint Sensing and Diagnostic Module Replacement .
  4. Inspect the SDM connector for damage or corrosion that may cause a malfunction in the steering wheel module high and/or low circuits. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?		 Go to Step 11  Go to Step 7 
7 
  • If DTC B0022 is present, test for a short between the steering wheel module high and low circuits.
  • If DTC B0024 is present, test the steering wheel module high and low circuits for a short to ground or a short to voltage.
  • If DTC B0026 is present, test the steering wheel module high and low circuits for an open or high resistance.
  • All the above conditions refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?		 Go to Step 11  Go to Step 10 
8
  1. Turn OFF the ignition.
  2. Replace the steering wheel module. Refer to Inflatable Restraint Steering Wheel Module Replacement .
Did you complete the replacement?		 Go to Step 11  -
9
  1. Turn OFF the ignition.
  2. Replace the steering wheel module coil. Refer to Inflatable Restraint Steering Wheel Module Coil Replacement .
Did you complete the replacement?		 Go to Step 11  -
10
  1. Turn OFF the ignition.
  2. Replace the SDM. Refer to Inflatable Restraint Sensing and Diagnostic Module Replacement .
Did you complete the replacement?		 Go to Step 11  -
11
  1. Connect all SIR components.
  2. Turn ON the ignition, with the engine OFF.
  3. Use the scan tool in order to clear the DTCs.
  4. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text.
Does the DTC reset?		 Go to Step 2  System OK
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