DTC B1B33-81: PATS Challenge Error - Invalid serial data received: Action
- Using the manufacturer approved diagnostic system, re-configure the body control module as a new module. Re-configure the engine control module as a new module
- Refer to the relevant system wiring diagrams and check the engine control module power and ground circuits for open circuit, high resistance
- Using the manufacturer approved diagnostic system, perform a CAN network integrity test. Refer to the relevant system wiring diagrams and check the high speed CAN bus (powertrain) circuit for short circuit to ground, short circuit to power, open circuit, high resistance