Diagnostic Aids

WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

If the A/T shift lock control circuit is shorted to battery positive voltage, the automatic transmission shift lock control solenoid will be unlocked. The vehicle will shift out of PARK without depressing the brake pedal.
Perform the tests while wiggling the wires and connectors. This may often cause an intermittent malfunction to appear. Refer to Testing for Intermittent Conditions and Poor Connections .