Diagnostic Fault Information
WARNING: This page is about a different car, the 2019 Buick Cascada, 2018 Buick Cascada, and 2017 Buick Cascada. However, it is still accessible from the selected car via links, so may be relevant.
| Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
| B+ - S79D Window Switch - Driver | U1538 00 | U1538 00 | - | - |
| B+ - M74D Window Motor - Driver | U1530 00, U1534 00 | U1534 00 | - | - |
| B+ - M74P Window Motor - Passenger | U1530 00, U1534 00 | U1534 00 | - | - |
| B+ - M74LR Window Motor - Left Rear | U1530 00, U1534 00 | U1534 00 | - | - |
| B+ - M74RR Window Motor - Right Rear | U1530 00, U1534 00 | U1534 00 | - | - |
| Serial Data - S79D Window Switch - Driver | U1534 00, U1538 00, U153A 00 | U1538 00 | U1538 00 | - |
| Serial Data - M74D Window Motor - Driver | U1530 00, U1534 00 | U1534 00 | U1534 00 | - |
| Serial Data - M74P Window Motor - Passenger | U1530 00, U1534 00 | U1534 00 | U1534 00 | - |
| Serial Data - M74RR Window Motor - Right Rear | U1530 00, U1534 00 | U1534 00 | U1534 00 | - |
| Serial Data - M74LR Window Motor - Left Rear | U1530 00, U1534 00 | U1534 00 | U1534 00 | - |
| Power Window Switch Driver Up Signal | B316B 02 | 1 | 1 | - |
| Power Window Switch Driver Down Signal | B316B 02 | 1 | 1 | - |
| Power Window Switch Driver Express Signal | B316B 02 | 1 | 1 | - |
| Power Window Switch Passenger Up Signal | B317A 02 | 2 | 2 | - |
| Power Window Switch Passenger Down Signal | B317A 02 | 2 | 2 | - |
| Power Window Switch Passenger Express Signal | B317A 02 | 2 | 2 | - |
| All Windows Close Switch Signal | 4 | 4 | B249A 01 | - |
| All Windows Open Switch Signal | 5 | 5 | B3803 01 | - |
| Ground - S134 Folding Top/Global Window Switch | - | 3 | - | - |
| Ground - S79D Window Switch - Driver | - | U1538 00 | - | - |
| Ground - M74D Window Motor - Driver | - | U1534 00 | - | - |
| Ground - M74P Window Motor - Passenger | - | U153A 00 | - | - |
| Ground - S79P Window Switch - Passenger | - | 2 | - | - |
| Ground - M74LR Window Motor - Left Rear | - | U1530 00 | - | - |
| Ground - M74RR Window Motor - Right Rear | - | U1530 00 | - | - |
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