Nissan Maxima Service and Repair Manual: U1227 AV control unit

U121D AV control unit

DTC Logic Diagnosis Procedure 1.CHECK PLAYBACK OF A DISK (CD) U121E AV CONTROL UNIT DTC Logic Diagnosis Procedure 1.CHECK PLAYBACK OF A DISK (CD) U1225 AV CONTROL UNIT DTC Logic DTC DETEC ...

U122A AV control unit

DTC Logic Diagnosis Procedure 1.PERFORM THE SELF-DIAGNOSIS When U122A is detected, write configuration data with "MULTI AV" of CONSULT. U122E AV CONTROL UNIT DTC Logic DTC DETECTION LOGIC ...

Other materials:

U1000 CAN comm circuit
Description CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle multiplex communication line with high data communication speed and excellent error detection ability. Many electronic control units are equipped onto a vehicle, and each co ...

Diagnosis and repair workflow
Work Flow OVERALL SEQUENCE DETAILED FLOW 1.CHECK SYMPTOM Check the malfunction symptoms by performing the following items. Interview the customer to obtain the malfunction information (conditions and environment when the malfunction occurred). Check the symptom. 2.SELF-DIAGNOS ...

P0725 engine speed
Description The engine speed signal is transmitted from ECM to TCM via CAN communication line. DTC Logic DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE CAUTION: Always drive vehicle at a safe speed. NOTE: Immediately after performing any "DTC CONFIRMATION PROCEDURE", always turn igni ...