OBDII Network(U) Codes, OBDii codes, Fault codes , Trouble codes，Error code, diagnostic code,Manufacturer Codes
Possible causes – Faulty Throttle Actuator Control (TAC) module– Throttle Actuator Control (TAC) module harness is open or shorted– Throttle Actuator Control (TAC) module circuit poor electrical connection (loose or broken wires) Tech notes There is a factory service bulletin
Possible causes – Faulty Throttle Actuator Control (TAC) module– Throttle Actuator Control (TAC) module harness is open or shorted– Throttle Actuator Control (TAC) module circuit poor electrical connection (loose or broken wires) Tech notes There is a factory service bulletin
Possible causes – Faulty Throttle Actuator Control (TAC) module– Throttle Actuator Control (TAC) module harness is open or shorted– Throttle Actuator Control (TAC) module circuit poor electrical connection (loose or broken wires) When is the code detected? The U0107 code
Possible causes – Faulty Transmission Control Module (TCM)– TCM harness is open or shorted– TCM circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) U0101 BUICK Description Modules connected to the high speed General
Possible causes – Faulty Transmission Control Module (TCM)– TCM harness is open or shorted– TCM circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) U0101 CHEVROLET Description Modules connected to the high speed General
Possible causes – Faulty Transmission Control Module (TCM)– TCM harness is open or shorted– TCM circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) U0101 Description Modules connected to the high speed General Motor
Possible causes – Faulty Transmission Control Module (TCM)– TCM harness is open or shorted– TCM circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) U0101 GMC Description Modules connected to the high speed General
Possible causes – Faulty Transmission Control Module (TCM)– TCM harness is open or shorted– TCM circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) U0101 PONTIAC Description Modules connected to the high speed General
Possible causes – Faulty Transmission Control Module (TCM)– TCM harness is open or shorted– TCM circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) U0101 SATURN Description Modules connected to the high speed General
Possible causes – Faulty Transmission Control Module (TCM)– TCM harness is open or shorted– TCM circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) U0101 CADILLAC Description Modules connected to the high speed General
Possible causes – Harness or connectors (CAN communication line is open or shorted) – ECM Tech notes Nissan has release service bulletins for this problem. A common cause with Nissan vehicles is the poor harness ground connection at the engine
Possible causes – Harness or connectors (CAN communication line is open or shorted) – ECM When is the code detected? When detecting error during the initial diagnosis of CAN controller of ECM. Symptoms – Engine Light ON (or Service Engine
Possible causes – Harness or connectors (CAN communication line is open or shorted) – ECM When is the code detected? When ECM is not transmitting or receiving CAN communication signal of OBD (emission related diagnosis) for 2 seconds or more.
Possible causes – Harness or connectors (CAN communication line is open or shorted) – Faulty Engine Control Module (ECM) Tech notes There is a service bulletin for the following Infiniti models with U1010 code: 2002-2004 Infiniti I35 2002-2006 Infiniti Q45
Possible causes – Harness or connectors (CAN communication line is open or shorted)– ECM Tech notes Nissan has release service bulletins for this problem. A common cause with Nissan vehicles is the poor harness ground connection at the engine compartment
Possible causes – Harness or connectors (CAN communication line is open or shorted)– ECM When is the code detected? When ECM is not transmitting or receiving CAN communication signal of OBD (emission related diagnosis) for 2 seconds or more. Symptoms
Possible causes – Harness or connectors (CAN communication line is open or shorted)– ECM When is the code detected? When ECM is not transmitting or receiving CAN communication signal of OBD (emission related diagnosis) for 2 seconds or more. Symptoms
Tech notes As with all loss of communication concerns, inspect the power, ground, and serial data circuits to the suspect module prior to replacing any parts When is the code detected? U10000 is set when the control module does not
Tech notes As with all loss of communication concerns, inspect the power, ground, and serial data circuits to the suspect module prior to replacing any parts. When is the code detected? U1255 is set when the control module does not
Tech notes For the 2003