U1000 Diagnostic Trouble Code (13 interpretations)

The control module detected a communication fault involving CAN data bus on the vehicle network. This is the manufacturer-specific definition used by Chevrolet.

The control module detected improper operation of the CAN communication line. This is the manufacturer-specific definition used by Nissan.

The stored code identifies a fault of the Communication fault on the CAN between the automatic gearbox ECU and the other ECUs of the network. Documented for the AM6/AT6 automatic gearbox ECU on Peugeot applications; the same PSA control units are also fitted to Citroën models. PSA documentation does not characterise the failure mode further.

The control module detected that the expected Fault in communication between the automatic gearbox electric control ECU and the other ECUs on the network was absent. Documented for the Automated manual gearbox electric control ECU on Peugeot applications; the same PSA control units are also fitted to Citroën models.

The control module detected the fault condition "Engine management ECU silent" for the CAN communication. Documented for the Bosch EDC16C34 injection ECU (DV6TED4 1.6 HDi) on Peugeot applications; the same PSA control units are also fitted to Citroën models.

The stored code identifies a fault of the Mute ECU fault. Documented for the Bosch ESP 8.1 stability control ECU on Peugeot applications; the same PSA control units are also fitted to Citroën models. PSA documentation does not characterise the failure mode further.

The control module detected the fault condition "Engine ECU - dead" for the Communication missing fault between the engine ECU and the others ECU's intersystems CAN network.. Documented for the Bosch MED 17.4.x engine ECU (EP6 THP family) on Peugeot applications; the same PSA control units are also fitted to Citroën models.

The control module detected the fault condition "Engine ECU dead" for the Fault. Documented for the Bosch MEV17.4 engine ECU (EP6 1.6 VTi) on Peugeot applications; the same PSA control units are also fitted to Citroën models.

The control module detected the fault condition "The engine ECU is detected mute by one of the ECUs on the network" for the ECU. Documented for the Continental SID 807 injection ECU (DV6C 1.6 HDi) on Peugeot applications; the same PSA control units are also fitted to Citroën models.

The control module detected the fault condition "The engine management ECU is detected mute by one of the network ECUs" for the ECU. Documented for the Delphi DCM 3.5 injection ECU (DW10C 2.0 HDi) on Peugeot applications; the same PSA control units are also fitted to Citroën models.

The control module detected that the expected Fault in communication between the gearbox ECU and the other ECUs on the network was absent. Documented for the MCP 6-speed piloted manual gearbox ECU on Peugeot applications; the same PSA control units are also fitted to Citroën models.

The stored code identifies a fault of the The engine ECU no longer communicates on the network. Documented for the Magneti Marelli MM6KP engine ECU (EW7A/EW10A) on Peugeot applications; the same PSA control units are also fitted to Citroën models. PSA documentation does not characterise the failure mode further.

The control module detected the fault condition "Engine ECU dead" for the Communication on the network (CAN). Documented for the Siemens SID 803 injection ECU (DW10BTED4 2.0 HDi) on Peugeot applications; the same PSA control units are also fitted to Citroën models.