U1001 · Communications du constructeur

ISUZU · 2022-06-17

Dealers, upfitters or bodybuilders may notice various warning lights on the dash illuminating and certain DTCs without an apparent cause during the initial installation and connection of telematics, GPS, and/or other aftermarket devices to the FMS system on certain 2022MY vehicles equipped with RPO I4H, DTCs that may occur are P1381, P1382, U2105, U1001, U0140, U0101, U0100, U0212, U0219, and U0028. These vehicles were configured with an incorrect module setup during the FMS installation at the port, which causes these lights and codes to set. Follow the service procedure below to validate that this incorrect configuration is the cause of these lights and codes and to reconfigure the Controller Area Network (CAN) Bus Interface.

INFINITI · 2017-02-21

2016-2017 QX80; MIL ON WITH P0090 AND U1000 AND/OR U1001 STORED IF YOU CONFIRM MIL is ON with the following DTC stored: - P0090 (FRP CONTROL SYSTEM) And U1000 and/or U1001 DTCs are stored in one or more other control units. NOTE: If P0090 is set and U1000 and/or U1001 DTCs are not set, this Bulletin does not apply. Refer to the Electronic Service Manual (ESM) for further diagnostic information. ACTION Replace the IPDM with one listed in the Parts Information.

NISSAN · 2017-02-21

2017 ARMADA; MIL ON WITH P0090 AND U1000 AND/OR U1001 STORED IF YOU CONFIRM MIL is ON with the following DTC stored: - P0090 (FRP CONTROL SYSTEM) And U1000 and/or U1001 DTCs are stored in one or more other control units. NOTE: If P0090 is set and U1000 and/or U1001 DTCs are not set, this Bulletin does not apply. Refer to the Electronic Service Manual (ESM) for further diagnostic information. ACTION Replace the IPDM with one listed in the Parts Information. IMPORTANT: The purpose of ACTION (above) is to give you a quick idea of the work you will be performing. You MUST closely follow the entire SERVICE PROCEDURE as it contains information that is essential to successfully completing this repair.

INFINITI · 2014-06-24

SERVICE INFORMATION Related to communication codes U1000, U1001, U1002, U1010: - Always diagnose the communication codes first. - When a module reports a U1000 code, it is typically operating normally; however, there is a communication error external to that module on the CAN network. - U1000 indicates an error. V-CAN diagram or CAN Diag Support Monitor provides data to determine the location of the error. See this bulletin for more information.

NISSAN · 2014-06-24

SERVICE INFORMATION Related to communication codes U1000, U1001, U1002, U1010: - Always diagnose the communication codes first. - When a module reports a U1000 code, it is typically operating normally; however, there is a communication error external to that module on the CAN network. - U1000 indicates an error. V-CAN diagram or CAN Diag Support Monitor provides data to determine the location of the error. See this bulletin for more information.