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Home >> GMC >> 2014 >> Terrain SLE, 4D Utility >> Repair and Diagnosis >> External Pages >> Different car >> Section 206 (Shift Lock Control System) >> Diagnostic Information and Procedures >> DTC B270A >> Component Testing
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Component Testing

WARNING: This page is about a different car, the 2012 GMC Terrain and 2012 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.

Dynamic Test

  1. Install a 10 A fused jumper wire between the control terminal 4 and 12 V. Momentarily install a jumper wire between the ground terminal 2 and ground.
  2. Verify the solenoid turns on & off/clicks, etc.
    • If the solenoid does not turn on & off/clicks, etc. 

      Replace the S3 transmission shift lever.

    • If the solenoid does turn on & off/clicks, etc. 
  3. All OK