Work Flow

DIAGNOSIS AND REPAIR WORK FLOW (METER SYSTEM)

Work flow


OVERALL SEQUENCE






- Reference 1Reading and Clearing Diagnostic Trouble Codes.
- Reference 2Testing and Inspection.
- Reference 3Meter Control Switch Signal Circuit.
- Reference 4Meter Control Switch Signal Circuit.
- Reference 5Power Supply And Ground Circuit.

DETAILED FLOW


1. OBTAIN INFORMATION ABOUT SYMPTOM

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

- 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

Check that the on board diagnosis function operates. Reading and Clearing Diagnostic Trouble Codes.
Does the on board diagnosis function operate normally?
YES- GO TO 4.
NO- GO TO 6.

4. CHECK CONSULT SELF-DIAGNOSIS RESULTS

Connect CONSULT and perform self-diagnosis. Testing and Inspection.
Are self-diagnosis results normal?
YES- GO TO 5.
NO- GO TO 10.

5. NARROW DOWN THE MALFUNCTIONING PARTS BY SYMPTOM DIAGNOSIS

Perform symptom diagnosis and narrow down the malfunctioning parts.
- GO TO 10.

6. CHECK METER CONTROL SWITCH SIGNAL CIRCUIT

Check meter control switch signal circuit. Meter Control Switch Signal Circuit.
Is inspection result OK?
YES- GO TO 7.
NO- GO TO 10.

7. CHECK METER CONTROL SWITCH

Check meter control switch. Meter Control Switch Signal Circuit.
Is inspection result OK?
YES- GO TO 8.
NO- GO TO 10.

8. CHECK COMBINATION METER POWER SUPPLY AND GROUND CIRCUITS

Check combination meter power supply and ground circuits. Power Supply And Ground Circuit.
Is inspection result OK?
YES- GO TO 9.
NO- GO TO 10.

9. REPLACE COMBINATION METER

Replace combination meter.
- GO TO 11.

10. REPAIR OR REPLACE MALFUNCTIONING PARTS

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

Check that the combination meter operates normally.
Do they operate normally?
YES- INSPECTION END
NO- GO TO 1.