Diagnosis and Repair Workflow

Work Flow

Work flow

OVERALL SEQUENCE

• Reference 1: On Board Diagnosis Function.

• Reference 2: DTC Index.

• Reference 3: Diagnosis Procedure.

• Reference 4: Component Inspection.

• Reference 5: Diagnosis Procedure.

DETAILED FLOW

1. OBTAIN INFORMATION ABOUT SYMPTOM

   1. Interview the customer to obtain as much information as possible about the conditions and environment under which the malfunction occurred.

   >>

   GO TO 2.

2. CHECK SYMPTOM

   1. • Check the symptom based on the information obtained from the customer.

      • Check that any other malfunctions are present.

   >>

   GO TO 3.

3. CHECK ON BOARD DIAGNOSIS OPERATION

   1. Check that the on board diagnosis function operates. Refer to On Board Diagnosis Function.

   Does the on board diagnosis function operate normally?

   YES >>

   GO TO 4.

   NO >>

   GO TO 6.

4. CHECK CONSULT SELF DIAGNOSTIC RESULT

   1. CONSULT

      1. Select “Self Diagnostic Result” mode of “METER/M&A”. Refer to DTC Index.

      2. When DTC is detected, follow the instructions below:

         • Record DTC and Freeze Frame Data.

   Is the inspection result normal?

   YES >>

   GO TO 5.

   NO >>

   GO TO 10.

5. NARROW DOWN THE MALFUNCTIONING PARTS BY SYMPTOM DIAGNOSIS

   1. Perform symptom diagnosis and narrow down the malfunctioning parts.

   >>

   GO TO 10.

6. CHECK TRIP RESET SWITCH SIGNAL CIRCUIT

   1. Check trip reset switch signal circuit. Refer to Diagnosis Procedure.

   Is inspection result normal?

   YES >>

   GO TO 7.

   NO >>

   GO TO 10.

7. CHECK TRIP RESET SWITCH

   1. Check trip reset switch. Refer to Component Inspection.

   Is inspection result normal?

   YES >>

   GO TO 8.

   NO >>

   GO TO 10.

8. CHECK COMBINATION METER POWER SUPPLY AND GROUND CIRCUITS

   1. Check combination meter power supply and ground circuits. Refer to Diagnosis Procedure.

   Is inspection result normal?

   YES >>

   GO TO 9.

   NO >>

   GO TO 10.

9. REPLACE COMBINATION METER

   1. Replace combination meter. Refer to Removal and Installation.

   >>

   GO TO 11.

10. REPAIR OR REPLACE MALFUNCTIONING PARTS

    1. Repair or replace the malfunctioning parts.

       Note:

       If DTC is displayed, erase DTC after repair or replace malfunctioning parts.

    >>

    GO TO 11.

11. FINAL CHECK

    1. Check that the combination meter operates normally.

    Does it operate normally?

    YES >>

    Inspection End

    NO >>

    GO TO 1.

Additional Service When Replacing Combination Meter

Work Procedure

Work Procedure

When replacing the combination meter, perform the following procedure before and after replacement.

1. BEFORE REPLACEMENT

   1. CONSULT

      1. Note the odometer mileage of the combination meter.

      2. Select “Self Diagnostic Result” mode of “ABS”.

   Is DTC detected?

   YES >>

   Refer to DTC Index.

   NO >>

   GO TO 2.

2. COMBINATION METER CONFIGURATION

   1. CONSULT

      Perform the combination meter configuration. Refer to Work Procedure.

   >>

   GO TO 3.

3. PERFORM SELF DIAGNOSTIC RESULT

   1. CONSULT

      Select “Self Diagnostic Result” mode of “METER/M&A”.

   Is DTC detected?

   YES>>

   Refer to DTC Index.

   NO>>

   GO TO 4.

4. ROAD TEST (AFTER REPLACEMENT)

   1. 1. Drive the Nissan Sentra vehicle 1 km (0.62 mi) or more.

      2. Check that the odometer shows more mileage than the mileage noted before replacement.

      Note:

      The odometer mileage of the combination meter is also stored and memorized in the ABS actuator and electric unit (control unit). When driving 1 km (0.62 mi) or more after replacing the combination meter, the memorized mileage in the ABS actuator and electric unit (control unit) is written into the new combination meter.

   YES >>

   Work End.

Configuration (combination Meter)

Work Procedure

Work Procedure

• Since vehicle specifications are not included in the combination meter after replacement, it is required to write Nissan Sentra vehicle specifications with CONSULT.

• Configuration has three functions as follows.

  Function		Description
  Read/Write Configuration	Before Replace ECU	Allows the reading of Nissan Sentra vehicle specification written in combination meter to store the specification in CONSULT.
  	After Replace ECU	Allows the writing of the Nissan Sentra vehicle information stored in CONSULT into the combination meter.
  Manual Configuration		Allows the writing of the Nissan Sentra vehicle specification into the combination meter by hand.

×: Required

Parts name	Work		Additional service		Remarks
	Replacement	Removal
combination meter	×	—	Configuration		The combination meter do not operate normally unless the additional services are performed.

CAUTION:

• Use “Manual Configuration” only when “Parts number” of combination meter cannot be read.

• If an error occurs during configuration, start over from the beginning.

1. CHECKING PARTS NUMBER

   1. CONSULT

      1. Select “Before Replace ECU” of “Read/Write Configuration”.

      2. Check that “Parts number” is displayed.

   Is “Parts number” displayed?

   YES >>

   GO TO 2.

   NO >>

   GO TO 6.

2. VERIFYING PARTS NUMBER (1)

   1. CONSULT

      Compare a “Parts number” displayed on the CONSULT screen with the one searched by using FAST (service parts catalogue) to check that these “Parts number” agree with each other.

      Note:

      For the “Parts number” searched by using FAST (service parts catalog), use the last five digits of the “Parts number”.

   >>

   GO TO 3.

3. SAVING PARTS NUMBER

   1. CONSULT

      Save “Parts number”.

   >>

   GO TO 4.

4. REPLACE COMBINATION METER (1)

   1. Replace combination meter. Refer to Removal and Installation.

   >>

   GO TO 5.

5. WRITING (AUTOMATIC WRITING)

   1. CONSULT

      1. Select “After Replace ECU” of “Re/programming, Configuration” or that of “Read / Write Configuration”.

      2. Select the “Parts number” agreeing with the one stored on CONSULT and the one searched by using FAST (service parts catalogue) to write the “Parts number” into the combination meter.

   >>

   GO TO 8.

6. REPLACE COMBINATION METER (2)

   1. Replace combination meter. Refer to Removal and Installation.

   >>

   GO TO 7.

7. WRITING (MANUAL WRITING)

   1. CONSULT

      1. Select “Manual Configuration”.

      2. Select the “Parts number” searched by using FAST (service parts catalogue) to write the “Parts number” into the combination meter.

         Note:

         For the “Parts number” searched by using FAST (service parts catalog), use the last five digits of the “Parts number”.

   >>

   GO TO 8.

8. VERIFYING PARTS NUMBER (2)

   1. CONSULT

      Compare a “Parts number” displayed on the CONSULT screen with the one searched by using FAST (service parts catalogue) to check that these “Parts number” agree with each other.

      Note:

      For the “Parts number” searched by using FAST (service parts catalog), use the last five digits of the “Parts number”.

   >>

   GO TO 9.

9. OPERATION CHECK

   1. Confirm that each function controlled by combination meter operates normally.

   >>

   Work End.