Diagnosis and Repair Workflow

Work Flow

Work Flow

OVERALL SEQUENCE

DETAILED FLOW

1. GET INFORMATION FOR SYMPTOM

   1. Get detailed information from the customer about the symptom (the condition and the environment when the incident/malfunction occurred).

   >>

   GO TO 2.

2. CONFIRM THE SYMPTOM

   1. Try to confirm the symptom described by the customer. Verify relation between the symptom and the condition when the symptom is detected.

   >>

   GO TO 3.

3. PERFORM SELF DIAGNOSTIC RESULT

   1. CONSULT

      1. Ignition switch ON and wait for 2 seconds or more.

      2. Select "Self Diagnostic Result" mode of "MULTI AV".

   Are any DTCs displayed?

   YES >>

   Refer to DTC Index.

   NO >>

   GO TO 4.

4. PERFORM SYMPTOM DIAGNOSIS

   1. Refer to Symptom Table.

   >>

   GO TO 5.

5. FINAL CHECK

   1. Refer to symptom described by the customer in step 1.

   Is the symptom still present?

   YES >>

   GO TO 2.

   NO >>

   Inspection End.

Additional Service When Replacing Av Control Unit

Description

Description

BEFORE REPLACEMENT

When replacing AV control unit, save or print current vehicle specification with CONSULT configuration before replacement.

If “Before Replace ECU” cannot be used, use the “After Replace ECU” or “Manual Configuration” after replacing AV control unit.

AFTER REPLACEMENT

CAUTION:

When replacing AV control unit, you must perform “After Replace ECU” with CONSULT.

Work Procedure

Work Procedure

1. SAVING VEHICLE SPECIFICATION

   1. CONSULT

      Enter “Re/Programming, Configuration” and perform “Before Replace ECU” to save or print current Nissan Sentra vehicle specification.

      Note:

      If “Before Replace ECU” cannot be used, use the “After Replace ECU” or “Manual Configuration” after replacing AV control unit.

   >>

   GO TO 2.

2. REPLACE AV CONTROL UNIT

   1. Replace AV control unit. Refer to Removal and Installation.

   >>

   GO TO 3.

3. WRITING Nissan Sentra Vehicle SPECIFICATION

   1. CONSULT

      1. Enter "Re/Programming, Configuration".

      2. If “Before Replace ECU” operation was performed, automatically an "Operation Log Selection" screen will be displayed. Select the applicable file from the "Saved Data List" and press “Confirm” to write Nissan Sentra vehicle specification. Refer to Work Procedure.

      3. If “Before Replace ECU” operation was not performed, select "After Replace ECU" or "Manual Configuration" to write Nissan Sentra vehicle specification. Refer to Work Procedure.

   >>

   GO TO 4.

4. OPERATION CHECK

   1. Check that the operation of the AV control unit and camera images (fixed guide lines) are normal.

   >>

   Work End.

Configuration (av Control Unit)

Description

Description

Vehicle specification needs to be written with CONSULT because it is not written after replacing AV control unit.

Configuration has three functions as follows:

CAUTION:

• When replacing AV control unit, you must perform “Select Saved Data List” or "After Replace ECU" with CONSULT.

• Complete the procedure of “Select Saved Data List” or "After Replace ECU" in order.

• If you set incorrect “Select Saved Data List” or "After Replace ECU", incidents might occur.

• Configuration is different for each Nissan Sentra vehicle model. Confirm configuration of each vehicle model.

• Never perform “Select Saved Data List” or "After Replace ECU" except for new AV control unit.

Work Procedure

Work Procedure

1. WRITING MODE SELECTION

   1. CONSULT

      Select “Reprogramming, Configuration” of AV control unit.

   When writing saved data>>

   GO TO 2.

   When writing manually>>

   GO TO 3.

2. PERFORM “SAVED DATA LIST”

   1. CONSULT

      Automatically “Operation Log Selection” window will display if “Before Replace ECU” was performed. Select applicable file from the “Save Data List” and press “Confirm”.

   >>

   Work End.

3. PERFORM “AFTER REPLACE ECU” OR “MANUAL CONFIGURATION”

   1. CONSULT

      1. Select “After Replace ECU” or “Manual Configuration”.

      2. Identify the correct model and configuration list. Refer to Configuration List.

      3. Confirm and/or change setting value for each item.

         CAUTION:

         Thoroughly read and understand the Nissan Sentra vehicle specification. ECU control may not operate normally if the setting is not correct.

      4. Select “Next”.

         CAUTION:

         Make sure to select “Next”, confirm each setting value and press “OK” even if the indicated configuration of brand new AV control unit is same as the desirable configuration. If not, configuration which is set automatically by selecting Nissan Sentra vehicle model can not be memorized.

      5. When "Completed", select "End".

   >>

   GO TO 4.

4. OPERATION CHECK

   1. Confirm that each function controlled by AV control unit operates normally.

   >>

   Work End.

Configuration List

Configuration List

CAUTION:

Thoroughly read and understand the vehicle specification. Incorrect settings may result in abnormal control of ECU.

⇔: Items which confirm Nissan Sentra vehicle specifications