Code B335, Loss Of ECCP Or CRT Serial Data

This code can only be viewed as a history code, because if it was current, service diagnostics could not be entered. Most likely the ECCP controls for heating and A/C will also be inoperative when the loss of serial data occurs.

Since the serial data lines are redundant, a double open in the circuit No. 800 has to occur to set this code. However, the code will also set for a single open in the power or ground supply to the ECCP.

Fig 1: Code B335, Schematic, Loss Of ECCP or CRT Serial Data

Fig 2: Flow Chart, Code B335, Loss Of ECCP or CRT Serial Data