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Home >> Geo >> 1993 >> Storm Base, Standard >> Repair and Diagnosis (Single Page) >> Restraints >> Air Bag, SRS >> Air Bag Restraint System >> Diagnostic Charts >> Codes 21 & 22 Both Current, Steering Column Resistance Undetermined (1 Of 2) >> Action Taken

Action Taken

DERM turns on INFLATABLE RESTRAINT indicator light.

NOTE: Test numbers refer to test numbers on diagnostic chart. For circuit number identification, see WIRING DIAGRAMS.
  1. Checks integrity of 49.9-ohm resistor, 100-ohm resistor, 430-ohm resistor, and associated circuitry in resistor module.
  2. Checks for open in FORCE HIGH resistor circuitry in resistor module.
  3. Checks for a short from FORCE LOW circuit No. 688 to circuit No. 340.
  4. Checks for a short from FORCE LOW circuit No. 688 to circuit No. 349.
  5. Checks for a short from FORCE LOW circuit No. 688 to circuit No. 348.
WARNING: To avoid air bag deployment and injury when trouble shooting system, only use test equipment specified in diagnostic charts.
Fig 1: Flowchart, Codes 21 & 22 Both Current, Steer. Column Resis. Undetermined (1 of 2)
G93J75332Courtesy of GENERAL MOTORS CORP.