BCM Code B335 - Loss Of CCDIC Data
Since a loss of data communication with CCDIC will result in "SYSTEM PROBLEM" display, this code can only be recognized as a history code. During a failure, the A/C-heater programmer will default to 75°F set temperature, front defrost air delivery and automatic blower control.
With a 2-way, redundant communication ability built into this system, a double open in data line must occur to set fault. A single fault, however, in the CCDIC power or ground would also cause this code to set.
BCM Code 335 indicates a loss of data communication between the CCDIC and the BCM. When this event occurs, the CCDIC displays the message "SYSTEM PROBLEM" until the problem is corrected. This code will only be displayed as an intermittent.
Possible cause of a code 335 are:
- A faulty CCDIC panel.
- Loss of 7 volts from the central power supply (circuit 807).
- The actual loss of the data communication circuit to the BCM.