Trouble Code Table
Each time the ignition is switched on, the ATWS control unit performs a 10 second long self-diagnosis test to check the control unit and the inputs and outputs.
If a fault occurs, the corresponding trouble code is stored in the ATWS control unit, which can then be called up using the TECH 1 diagnostic unit for fault elimination.
| Trouble code | Information Sensor | Cause of Fault |
|---|---|---|
| 12 | Input "arm/disarm ATWS" | Incorrect voltage level or interruption in wiring harness |
| 18 | Input "glass breakage contact loop" | Interruption in wiring harness |
| 19 | Output "horn" | Horn defective or interruption in wiring harness |
| 32 | ATWS control unit | A/D converter defective |
| 37 | ATWS control unit | ATWS control unit defective RAM/ROM fault |