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.
DTC B1AA2, B1AA3, OR B272B DIAGNOSTIC FAULT INFORMATION
| Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
| Battery Positive Voltage | 1 | 1 | - | - |
| Ignition 3 Voltage | 1 | 1 | - | - |
| Driver Seat Blower Supply Voltage | B111D | B272F | B272F | - |
| Driver Seat Back Blower Supply Voltage | B111D | B272D, B727B, B272F | B272F | - |
| Driver Seat Cushion Blower Supply Voltage | B111D | B272A, B272D | B272F | - |
| Driver Heated Seat Back Only Mode Switch Signal | 5 | 5 | 5 | - |
| Driver Heated Seat Cool Switch Signal | 4 | 4 | 4 | - |
| Driver Seat Back Cushion Switch Signal | 3 | 3 | 3 | - |
| Driver Seat Back Temperature Sensor Signal | B272B, B272D | B1AA3, B272D | B1AA3, B272D | - |
| Driver Seat Cushion Temperature Sensor Signal | B272A, B272D | B1AA2, B272D | B1AA2, B272D | - |
| Left Heated/Cooled Seat Mode Signal | 2 | 2 | 2 | - |
| Driver Seat Back Heated/Cool Ventilation Module Cool Control | B111A | B272D, 4 | - | - |
| Driver Seat Back Heated/Cool Ventilation Module Heat Control | B111A, 4 | B272D, 4, 5 | - | - |
| Driver Seat Cushion Heated/Cool Ventilation Module Cool Control | B111A | B272D, 4 | - | - |
| Driver Seat Cushion Heated/Cool Ventilation Module Heat Control | B111A, 4 | B272D | 4 | - |
| Driver Seat Back Blower Speed Control | B19A6 | B272B, B272D, B272F | B19A2 | - |
| Driver Seat Cushion Blower Speed Control | B19A5 | B272A, B272D | B19A1 | - |
| Low Reference - Driver Heated Seat Switch | - | 2 | - | - |
| Low Reference - Driver Seat Back Blower | - | B272B, B272D, B272F | - | - |
| Low Reference - Driver Seat Back and Cushion Blower | - | B272F | - | - |
| Low Reference - Driver Seat Cushion Blower | - | B272A, B272D | - | - |
| Low Reference - Driver Seat Back Temperature Sensor | - | B1AA3, B272D | - | - |
| Low Reference - Driver Seat Cushion Temperature Sensor | - | B1AA2, B272D | - | - |
| Ground - Climate Control Seat Module | - | 1 | - | - |
| 1. Driver and passenger heated/cooled seats are inoperative 2. Driver seat heat and cool modes are inoperative 3. Seat heat mode is inoperative 4. Seat cool mode is inoperative 5. Heated/cooled seat inoperative - Back Only Mode |
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