This network code indicates that a control module on the vehicle's communication bus is reporting that it received invalid or implausible data from the audible alert control module, which handles chimes and warning tones. It does not mean the reporting module is defective; it means the data coming from the audible alert module was missing, corrupted, or out of expected range.
The audible alert module itself has internally failed or is not powering up, so it either sends no data or garbled data on the bus. This is the most common root cause when the module is completely silent on the network.
An open circuit, corroded pin, loose connection, or damaged wire in the power, ground, or communication lines to the audible alert module prevents it from operating or communicating properly.
A short-to-power or short-to-ground on the communication bus, or a fault in bus termination, can corrupt messages and cause modules to flag invalid data from one another.
If the audible alert module was recently replaced or reprogrammed with incorrect software, the data it sends may not match what the receiving module expects, triggering this code.
The module that detected the invalid data could itself be misinterpreting valid messages, but this is rare. It should only be considered after the audible alert module, wiring, and bus integrity have all been verified.
No. The PCM or another module is simply reporting that it received bad data from the audible alert module. The reporting module is almost never the problem. Replacing the PCM for this code is almost always incorrect unless it has been conclusively proven faulty after all other causes are ruled out.
In most cases yes, as the code typically affects audible warning chimes rather than engine or safety-critical operation. However, loss of warning chimes for seatbelt, keys-in-ignition, or lights-on reminders can be an inconvenience and should be addressed.
It is relatively uncommon and is typically seen on vehicles with a dedicated audible alert or chime control module. On vehicles where chime functions are integrated into the instrument cluster or body control module, this specific code would not normally appear.
Yes. If system voltage drops low enough, modules may fail to power up or communicate correctly, generating network codes like this one. Checking battery health and charging voltage is worthwhile before condemning the audible alert module.