DETAILS OF TROUBLE DIAGNOSIS FLOWCHART
COLLECT THE INFORMATION FROM THE CUSTOMER
It is also important to clarify customer concerns before starting the inspection. First of all, perform an interview utilizing diagnostic work sheet and reproduce the symptom as well as fully understand it. Depending on the situations, drive the Nissan Ariya vehicle with the customer and check the symptom. Refer to Diagnostic Work Sheet.
CAUTION:
Customers are not professionals. Never guess easily like “maybe the customer means that...,” or “maybe the customer mentions this symptom”.
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GO TO 2.
CHECK SYMPTOM
Reproduce the symptom that is indicated by the customer, based on the information from the customer obtained by interview. Also check that the symptom is not caused by fail-safe mode. Refer to Fail-safe.
CAUTION:
When the symptom is caused by normal operation, fully inspect each portion and obtain the understanding of customer that the symptom is not caused by a malfunction.
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GO TO 3.
PERFORM SELF-DIAGNOSIS
With CONSULT
Power switch OFF (Auto ACC function OFF) to ON.
CAUTION:
Be sure wait of 10 seconds after power switch OFF (Auto ACC function OFF) or ON.
Operate (push/pull) parking brake switch.
CAUTION:
Shift the electric shift selector is P position.
Depress the brake pedal.
Perform self-diagnosis for “ABS”.
Is DTC detected?
YES>>Record or print self-diagnosis results and freeze frame data (FFD). GO TO 4.
NO>>GO TO 5.
REPAIR OR REPLACE ERROR-DETECTED PART
Repair or replace error-detected parts.
Reconnect part or connector after repairing or replacing.
When DTC is detected, erase self-diagnostic result for “ABS”.
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GO TO 5.
IDENTIFY ERROR-DETECTED SYSTEM BY SYMPTOM DIAGNOSIS
Estimate error-detected system based on symptom diagnosis and perform inspection.
Can the error-detected system be identified?
YES>>GO TO 6.
NO>>Check harness and connectors based on the information obtained by interview. Refer to Intermittent Incident.
FINAL CHECK
With CONSULT
Check the reference value for "ABS". Refer to Values On The Diagnosis Tool.
Perform self-diagnosis for “ABS”.
Is the symptom reproduced?
YES-1>>"CRNT" is displayed: Refer to DTC Index.
YES-2>>“PAST” is displayed: INSPECTION END (Erase the memory of self-diagnosis results.)
NO>>INSPECTION END
DESCRIPTION
In general, customers have their own criteria for a problem. Therefore, it is important to understand the symptom and status well enough by asking the customer about his/her concerns carefully. To systemize all the information for the diagnosis, prepare the interview sheet referring to the interview points.
In some cases, multiple conditions that appear simultaneously may cause a DTC to be detected.
INTERVIEW SHEET SAMPLE
Interview sheet | |||||
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Customer name | MR/MS | Registration number | Initial year registration | ||
Nissan Ariya Vehicle type | VIN | ||||
Storage date | Engine / Traction motor | Mileage | km ( Mile) | ||
Situation where malfunction is occurred | Malfunction category |
□ Unable to brake □ Unable to release □ Generates abnormal sound □ Brake system warning lamp keep turn ON □ Nissan Ariya Vehicle does not stop despite braking operation □ Parking brake continues breaking despite release operation □ Hooked at automatic release operation □ Nissan Ariya Vehicle slides down at automatic release operation □ Electric parking brake warning lamp does not turn ON □ Electric parking brake warning lamp keep turn ON □ Electric parking brake warning lamp blinks □ Master warning lamp turns ON □ A text displayed on combination meter |
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Detailed symptom | |||||
Detailed abnormal sound | |||||
Electric shift selector position | □ P □ R □N □ D | ||||
Seat belt operation | □ OFF □ ON | ||||
Brake pedal status | □ Not depress □ Depress | ||||
Electric parking brake status |
□ At release operation □ At braking operation □ During release □ During braking □ Continuously |
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Nissan Ariya Vehicle status | □ Power switch OFF □ Power switch ON | ||||
Nissan Ariya Vehicle running status |
□ At start with shift in D-range □ While driving with shift in D-range □ When stopped with shift in D-range □ At start with shift in R-range □ While driving with shift in R-range □ When stopped with shift in R-range □ When stopped with shift in N-range □ When stopped with shift in P-range □ Low speed (while driving) □ Normal speed (while driving) □ High speed (while driving) |
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Road condition |
□ Steep downhill road □ Gentle downhill road □ Flat road □ Gentle uphill road □ Steep uphill road |
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Number of occupants | □ 5 □ 4 □ 3 □ 2 □ 1 | ||||
Nissan Ariya Vehicle loading condition (quantity) | |||||
Mechanical release history | |||||
Inspection result | Self-diagnosis result | ||||
12V battery condition | □ Normal □ Abnormal ( ) □ Not confirmed | ||||
Harness and connector condition | □ Normal □ Abnormal ( ) □ Not confirmed | ||||
Brake caliper assembly condition | □ Normal □ Abnormal ( ) □ Not confirmed | ||||
Rear brake pad condition | □ Normal □ Abnormal ( ) □ Not confirmed | ||||
Rear disc rotor condition | □ Normal □ Abnormal ( ) □ Not confirmed | ||||
Other condition |
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