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.
Lumbar Massage Inoperative
| Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
| Lumbar Massage Switch Supply Voltage | 2 | 1 | - | - |
| 5-Volt Reference | B1395 02 | B1395 05 | B1395 05 | - |
| Lumbar Massage Switch Signal | 2 | 1 | 1 | - |
| Lumbar Vertical Position Sensor Signal | B2105 or B2355 | B2105 or B2355 | B2105 or B2355 | - |
| Lumbar Motor Down Control | B1340 0B | B1340 00 | B2765 | - |
| Lumbar Motor Up Control | B1340 0B | B1340 00 | - | - |
| Memory Seat/Mirror Sensor Low Reference | - | B1395 05 | - | - |
| 1. Lumbar massage inoperative 2. Loss of Communication with MSM |
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