DTC Descriptors
WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- DTC P1631
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Pressure Control (PC)/Shift Lock Solenoid Control Circuit Low Voltage
- DTC P1630
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Pressure Control (PC)/Shift Lock Solenoid Control Circuit High Voltage