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 .

Checks for an open in circuit No. 347 between resistor module and arming sensor.
Checks for an open in circuit No. 349 between resistor module and steering column connector.

Fig 1: Code 21, Chart 2, Steering Column Resistance Too High

Courtesy of GENERAL MOTORS CORP.