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Home >> Buick >> 2012 >> Regal Turbo, Automatic Trans >> Repair and Diagnosis >> Steering >> Power Steering System >> Diagnostic Information and Procedures >> DTC C0450 >> Component Testing
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Component Testing

Static Test

  1. Ignition OFF, disconnect the harness connector at the M72 Variable Power Steering Solenoid Valve.
  2. Test for 1.6-3.1 Ω between control terminal A and control terminal B.
    • If not the specified range, replace the M72 Variable Power Steering Solenoid Valve.
  3. Test for infinite resistance between each terminal and the M72 Variable Power Steering Solenoid Valve housing case.
    • If not the specified value, replace the M72 Variable Power Steering Solenoid Valve.