DTC U0138-63: Lost Communication with All Terrain Control Module - Circuit/component protection time-out: Action
- Refer to the appropriate system wiring diagrams and check the terrain response switchpack power and ground circuits for open circuit, high resistance
- Using the manufacturer approved diagnostic system, perform a CAN network integrity test. Refer to the appropriate system wiring diagrams 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 terrain response switchpack for related DTCs and refer to the relevant DTC index