1. DTC B1E21[09] description
A communication module is built into the eCall unit. If the eCall unit detects a malfunction in the built-in communication module, the DTC is set.
2. Condition for setting DTC B1E21[09]
Condition for running the DTC
- The ignition switch is ON.
Condition for setting the DTC
- The eCall unit detects a malfunction in the built-in communication module.
3. Action taken when DTC B1E21[09] sets
- The indicator light (red) illuminates.
- An alarm sounds from the speaker.
- Current and past failures are set.