DTC P0004 Jeep
Lost Communication with XXX
Lost Communication with XXX
Description
Diagnostic trouble codes B1327, B1328, U1300, U1301, and U1305 do not have a current status. Any particular device on the class 2 serial data circuit will support some subset of these DTCs. The vehicle power mode (ignition switch position) requires
Cause and Solution
When multiple Loss of Communication DTCs are set concurrently, the cause is likely to be two opens in the class 2 serial data circuit. Use the Control Module ID Number list in order to determine which modules are not communicating. Use the class 2 serial
Video Guide
Diagnostic Info
- DTC Code: P0004
- Brand: Jeep