Work Flow

DIAGNOSIS AND REPAIR WORK FLOW

Work Flow


1. OBTAIN INFORMATION ABOUT SYMPTOM

Diagnostic Work Sheet and interview the customer to obtain the malfunction information (conditions and environment when the malfunction occurred) as much as possible when the customer brings in the vehicle.
- GO TO 2.

2. CHECK DTC AND FFD

1.Before checking the malfunction, check whether any DTC exists on the "All DTC Reading" screen.
2.If DTC exists, perform the following operations.
-Record the DTC and freeze frame data. (Print out using CONSULT and affix to the Work Order Sheet.)
-Erase the "HV BAT" DTC. (Refer to "How to Erase DTC and 1st Trip DTC" in Hybrid Battery System.)
-Turn ignition switch OFF.
-Check the relationship between the cause that is clarified with DTC and the malfunction information described by the customer.
3.Check the relevant information including STI, etc.
Do malfunction information and DTC exist?
YES- GO TO 4.
NO- GO TO 3.

3. REPRODUCE MALFUNCTION SYMPTOM

Check the vehicle for malfunctions other than the malfunction indicator lamp (MIL) reported by the customer, the hybrid system warning lamp.
Check if the behavior results from fail-safe operation. (Initial Inspection and Diagnostic Overview.)
When a malfunction symptom is reproduced, the question sheet is effective.
Inspect the relation of the symptoms and the condition when the symptoms occur.
YES- GO TO 5.
NO- Check Intermittent Incident.

4. PERFORM "DTC CONFIRMATION PROCEDURE"

Perform "DTC Confirmation Procedure" of the appropriate DTC to check if DTC is detected again.
When multiple DTCs are detected, Hybrid Battery System and then determine the order for performing the diagnosis.
NOTE:
If no DTC is detected, refer to the freeze frame data.
YES- GO TO 5.
NO- Check Intermittent Incident.

5. DETECT MALFUNCTIONING PARTS WITH THE "DIAGNOSIS PROCEDURE".

Perform the inspection of the corresponding system according to "Diagnosis Procedure".
NOTE:
The hybrid battery system "Diagnosis Procedure" mainly consists of a check for an open circuit. The circuit check in the diagnosis procedure also requires the check for a short circuit. Circuit Inspection
for details.
- GO TO 6.

6. REPAIR OR REPLACE THE MALFUNCTIONING PARTS

Repair or replace the detected malfunctioning parts.
After repairing or replacing, reconnect the parts and connectors that are disconnected in "Diagnosis Procedure", and then erase the DTC if one is present. (Refer to "How to Erase DTC and 1st Trip DTC" in Hybrid Battery System.)
- GO TO 7.

7. FINAL CHECK

Perform the "DTC Confirmation Procedure" or "Component Parts Function Inspection" to make sure that the repair is correctly performed.
Check that malfunctions are not reproduced when obtaining the malfunction information from the customer, referring to the symptom inspection result in step 3.
- Before delivering the vehicle to the customer, make sure that DTC is erased. (Refer to "DTC at 1st trip and method to read DTC" in Hybrid Battery System.)