Diagnostic Fault Information
WARNING: This page is about a different car, the 2007 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
DTC B1735, B1740, B1745, B1750, B1755, B1760, B1815, B1820, B1830, B1835, B1840, B1845, B2085, or B2090
| Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
| Front Vertical Up Switch Signal | 3 | 1 | B1735 01, B1740 01, B1745 01, B1750 01, B1755 01, B1760 01, B1815 01, B1820 01 | - |
| Front Vertical Down Switch Signal | 3 | 1 | B1735 01, B1740 01, B1745 01, B1750 01, B1755 01, B1760 01, B1815 01, B1820 01 | - |
| Rear Vertical Up Switch Signal | 3 | 1 | B1735 01, B1740 01, B1745 01, B1750 01, B1755 01, B1760 01, B1815 01, B1820 01 | - |
| Rear Vertical Down Switch Signal | 3 | 1 | B1735 01, B1740 01, B1745 01, B1750 01, B1755 01, B1760 01, B1815 01, B1820 01 | - |
| Horizontal Forward Switch Signal | 3 | 1 | B1735 01, B1740 01, B1745 01, B1750 01, B1755 01, B1760 01, B1815 01, B1820 01 | - |
| Horizontal Rearward Switch Signal | 3 | 1 | B1735 01, B1740 01, B1745 01, B1750 01, B1755 01, B1760 01, B1815 01, B1820 01 | - |
| Recline Forward Switch Signal | 3 | 1 | B1735 01, B1740 01, B1745 01, B1750 01, B1755 01, B1760 01, B1815 01, B1820 01 | - |
| Recline Rearward Switch Signal | 3 | 1 | B1735 01, B1740 01, B1745 01, B1750 01, B1755 01, B1760 01, B1815 01, B1820 01 | - |
| Driver Seat Lumbar Up Switch Signal | 3 | 2 | 2 | - |
| Driver Seat Lumbar Down Switch Signal | 3 | 2 | 2 | - |
| Driver Seat Lumbar Forward Switch Signal | 3 | 2 | 2 | - |
| Driver Seat Lumbar Rearward Switch Signal | 3 | 2 | 2 | - |
| Passenger Seat Lumbar Up Switch Signal | 3 | 2 | 2 | - |
| Passenger Seat Lumbar Down Switch Signal | 3 | 2 | 2 | - |
| 1. Power Seat Inoperative with Memory-A45 2. Lumbar Support Inoperative with Memory-A45 3. Scan Tool Does Not Communicate with Low Speed GMLAN Device |
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