Nissan Murano: Steering / Steering Control System :: Basic Inspection. Diagnosis and Repair Work Flow
DETAILED FLOW
INTERVIEW THE CUSTOMER
Clarify customer complaints before inspection. First of all, perform an interview utilizing Diagnostic Work Sheet and reproduce symptoms to understand them fully. Ask customer about his/her complaints carefully. Check symptoms by driving Nissan Murano vehicle with customer if necessary.
CAUTION:
Customers are not professionals. Never make assumptions like “maybe the customer means that...,” or “maybe the customer mentioned this symptom”.
>>
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 protection function. Refer to Protection Function.
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.
CHECK Nissan Murano Vehicle CONDITION
CONSULT
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Ignition switch ON.
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Select “C/U TEMP“ and “C/U TEMP A“ in “Data Monitor“ mode of “EPS/DAST 3“.
Monitor item Values C/U TEMP 194 °F (90°C) or less C/U TEMP A 194 °F (90°C) or less
Is the inspection result normal?
YES>>GO TO 4.
NO>>Wait with ignition switch OFF until the data monitor indication becomes 194 °F (90°C) or less. GO TO 4 after the temperature drops to 194 °F (90°C) or less.
SELF DIAGNOSTIC RESULT
CONSULT
Select "Self Diagnostic Result" mode of "EPS/DAST 3".
Is any DTC detected?
YES>>Record or print DTC and freeze frame data (FFD). GO TO 5.
NO>>GO TO 7.
RECHECK SYMPTOM
CONSULT
-
Erase "Self Diagnostic Result" mode of "EPS/DAST 3".
-
Perform DTC confirmation procedures for the malfunctioning system.
NOTE:
If some DTCs are detected at the same time, determine the order for performing the diagnosis based on DTC Inspection Priority Chart.
Is any DTC detected?
YES>>GO TO 6.
NO>>Check harness and connectors based on the information obtained by interview.
REPAIR OR REPLACE THE MALFUNCTIONING COMPONENTS
CONSULT
-
Repair or replace the malfunctioning components.
-
Reconnect part or connector after repairing or replacing.
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When DTC is detected, erase "Self Diagnostic Result" mode of "EPS/DAST 3".
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GO TO 8.
IDENTIFY THE MALFUNCTIONING SYSTEM BY SYMPTOM DIAGNOSIS
Estimate the malfunctioning system based on symptom diagnosis and perform inspection.
Can the malfunctioning system be identified?
YES>>GO TO 8.
NO>>Check harness and connectors based on the information obtained by interview.
FINAL CHECK
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Check the reference value for power steering control module.
-
Recheck the symptom and check that symptom is not reproduced under the same conditions.
Is the symptom reproduced?
YES>>GO TO 3.
NO>>Inspection End.
Description
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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 and refer to the interview points.
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In some cases, multiple conditions that appear simultaneously may cause a DTC to be detected.
Interview sheet sample
| Interview sheet | |||||
|---|---|---|---|---|---|
| Customer name | MR/MS | Registration number | Initial year registration | ||
| Nissan Murano Vehicle type | VIN | ||||
| Storage date | Engine | Mileage | km (Mile) | ||
| Symptom | □The steering wheel position (center) is in the wrong position. | ||||
| □Warning lamp turns ON. | |||||
| □Noise □Vibration | |||||
|
□Others ( ) |
|||||
| First occurrence | □Recently □Others ( ) | ||||
| Frequency of occurrence | □Always □Under certain conditions □Sometimes (time(s)/day) | ||||
| Climate conditions | □Irrelevant | ||||
| Weather | □Fine □Cloud □Rain □Snow □Others ( ) | ||||
| Temperature | □Hot □Warm □Cool □Cold □Temperature [Approx. °C (°F)] | ||||
| Relative humidity | □High □Moderate □Low | ||||
| Road conditions |
□Urban area □Suburb area □Highway □Mountain road (uphill or downhill) □Rough road |
||||
| Operation conditions, etc. |
□Irrelevant □When engine starts □During idling □During driving □During acceleration □At constant speed driving □During deceleration □During cornering (right curve or left curve) □During steering |
||||
| Other conditions | |||||
|
Memo |
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Steering Control System :: Ecu Diagnosis Information. Power Steering Control Module
Values on the Diagnosis Tool
NOTE:
The following table includes information (items) inapplicable to this Nissan Murano vehicle: For information (items) applicable to this vehicle, refer to CONSULT display items...
Other information:
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Vehicle security system
Your vehicle has two types of security systems:
Vehicle security system NISSAN Vehicle Immobilizer SystemThe vehicle security system provides visual and audible alarm signals if someone opens the doors, liftgate or the hood when the system is armed. It is not, however, a motion detection type system that activates when a vehicle is moved or when a vibration occurs.
