Transfer: Overview Nissan Murano Z50

OPERATION PROCEDURE

1. Connect both battery cables. NOTE: Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the "ACC" position. At this time, the steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be rotated.
4. Perform the necessary repair operation.
5. When the repair work is completed, return the ignition switch to the "LOCK" position before connecting the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of all control units using CONSULT-II.

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1. Before connecting or disconnecting the AWD control unit harness connector, turn ignition switch "OFF" and disconnect battery ground cable. Because battery voltage is applied to AWD control unit even if ignition switch is turned "OFF".
2. When connecting or disconnecting pin connectors into or from AWD control unit, take care not to damage pin terminals (bend or break). When connecting pin connectors, make sure that there are no bends or breaks on AWD control unit pin terminal.
3. Before replacing AWD control unit, perform AWD control unit input/output signal inspection and make sure whether AWD control unit functions properly or not. Refer to «AWD CONTROL UNIT INPUT/OUTPUT SIGNAL REFERENCE VALUES»(ref-234001-S37218936782006052800000) .

SYSTEM 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 control unit shares information and links with other control units during operation (not independent). In CAN communication, control units are connected with 2 communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring. Each control unit transmits/receives data but selectively reads required data only.

For details, refer to CAN COMMUNICATION UNIT .

Fail-Safe Function

1. If any malfunction occurs in AWD electrical system, and control unit detects the malfunction, AWD warning lamp on combination meter turns ON to indicate system malfunction.
2. When AWD warning lamp is ON, vehicle changes to front-wheel drive or shifting driving force-AWD (Rear-wheels still have some driving torque).

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1. To perform trouble diagnosis, it is the most important to have understanding about vehicle systems (control and mechanism) thoroughly.
2. It is also important to clarify customer complaints before inspection. First of all, reproduce symptoms, and understand them fully. Ask customer about his/her complaints carefully. In some cases, it will be necessary to check symptoms by driving vehicle with customer. CAUTION: Customers are not professional. It is dangerous to make an easy guess like "maybe the customer means that...," or "maybe the customer mentions this symptom".
3. It is essential to check symptoms right from the beginning in order to repair malfunctions completely. For intermittent malfunctions, reproduce symptoms based on interview with customer and past examples. Do not perform inspection on ad hoc basis. Most intermittent malfunctions are caused by poor contacts. In this case, it will be effective to shake suspected harness or connector by hand. When repairing without any symptom diagnosis, you cannot judge if malfunctions have actually been eliminated.
4. After completing diagnosis, always erase diagnostic memory. Refer to «HOW TO ERASE SELF-DIAGNOSTIC RESULTS»(ref-234001-S32253489752006052800000) .
5. For intermittent malfunctions, move harness or harness connector by hand. Then check for poor contact or reproduced open circuit.

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1. Perform "CONSULT-II SETTING PROCEDURE". Refer to «CONSULT-II SETTING PROCEDURE»(ref-234001-S08048518832006052800000)
2. Touch "DATA MONITOR".
3. Select from "SELECT MONITOR ITEM", screen of data monitor mode is displayed. NOTE: When malfunction is detected, CONSULT-II performs REAL-TIME DIAGNOSIS. Also, any malfunction detected while in this mode will be displayed at real time.

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Description

Use this mode to determine and identify the details of a malfunction based on self-diagnostic results or data monitor. AWD control unit gives drive signal to actuator with receiving command from CONSULT-II to check operation of actuator.

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