DTC U0101-87: Lost Communication with TCM - Missing message: Action
- Refer to the applicable SYSTEM WIRING DIAGRAM(S) and check the transmission 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 applicable SYSTEM WIRING DIAGRAM(S) and check the high speed CAN bus circuit for short circuit to ground, short circuit to power, open circuit, high resistance
- Using the manufacturer approved diagnostic system, check the transmission control module for related DTCs and refer to the relevant DTC index