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 B19A3, B19A7, OR B2729 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 | B103D | B272E | B272E | - |
| Driver Seat Back Blower Supply Voltage | B103D | B272C, B727E, B2730 | B272E | - |
| Driver Seat Cushion Blower Supply Voltage | B103D | B272C, B2729 | B272E | - |
| 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 | B272C, B2730 | B1AA1, B272C | B1AA1, B272C | - |
| Driver Seat Cushion Temperature Sensor Signal | B272C, B2729 | B1AA0, B272C | B1AA0, B272C | - |
| Left Heated/Cooled Seat Mode Signal | 2 | 2 | 2 | - |
| Driver Seat Back Heated/Cool Ventilation Module Cool Control | B103A | B272C, 4, 5 | - | - |
| Driver Seat Back Heated/Cool Ventilation Module Heat Control | B103A, 4 | B272C, 4, 5 | - | - |
| Driver Seat Cushion Heated/Cool Ventilation Module Cool Control | B103A | B272C, 4 | - | - |
| Driver Seat Cushion Heated/Cool Ventilation Module Heat Control | B103A, 4 | B272C | 4 | - |
| Driver Seat Back Blower Speed Control | B19A8 | B272C, B272E, B2730 | B19A4 | - |
| Driver Seat Cushion Blower Speed Control | B19A7 | B272C, B2729 | B19A3 | - |
| Low Reference - Driver Heated Seat Switch | - | 2 | - | - |
| Low Reference - Driver Seat Back Blower | - | B272C, B272E, B2730 | - | - |
| Low Reference - Driver Seat Back and Cushion Blower | - | B272E | - | - |
| Low Reference - Driver Seat Cushion Blower | - | B272C, B2729 | - | - |
| Low Reference - Driver Seat Back Temperature Sensor | - | B1AA1, B272C | - | - |
| Low Reference - Driver Seat Cushion Temperature Sensor | - | B1AA0, B272C | - | - |
| 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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