DTC P1639 Buick
Loss of Vehicle Immobilizer Module Communications
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DTC P1638 Buick
Rear Wheel Speed Signal Circuit Open
DTC P1637 Buick
Electronic Control Unit Internal Malfunction
DTC P1635 Buick
Low Tire Pressure - No Sub Type Information
DTC P1633 Buick
Antilock Brake System (ABS) Enable Relay Contact Circuit
DTC P1632 Buick
Trans Preference Switch Circuit Low
DTC P1630 Buick
Battery Voltage of LF Transmitter Drops.
DTC P1627 Buick
Right-Temperature-Door-Control-Performance-Incorrect-Operation
DTC P1626 Buick
DIS AMP Unit Fm2 Antenna circuit Low
DTC P1623 Buick
Device Voltage Reference Output Circuit Short to Ground
DTC P1621 Buick
No Communication With HVAC Control Module
DTC P1619 Buick
AV Control Unit (HDD Write)