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Home >> Hummer >> 2008 >> H3 Base, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 421 (Shift Lock Control System) >> Diagnostic Information and Procedures >> DTC B2710 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2009 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON, Clear the DTC. Observe the scan tool RCDLR Shift Lock Solenoid Command parameter. The parameter should change from UNLOCK to LOCK when the brake pedal is pressed and released.
  2. Observe the scan tool RCDLR Shift Lock Solenoid State parameter. The parameter should change from UNLOCK to LOCK when the brake pedal is depressed and released.
    • If the parameter does not change, replace the RCDLR.
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