Test Description

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

1. 7. Tests for a short to battery voltage on the active signal circuit.
2. 8. Tests the inactive signal circuit for an open or a high resistance.
3. 9. If any ignition switch parameters that should be inactive in the present ignition switch position are active, 2 ignition switch signal circuits may be shorted together.

Fig 1: DTC B1422 (1 Of 2)

Courtesy of GENERAL MOTORS CORP.

Fig 2: DTC B1422 (2 Of 2)

Courtesy of GENERAL MOTORS CORP.