Nissan Ariya: E-Step

• System Description
• Ecu Diagnosis Information. Chassis Control Module
• Basic Inspection. Diagnosis and Repair Work Flow
• Component Parts /circuit Diagnosis. E-Step Switch
• Removal and Installation

Ecu Diagnosis Information. Chassis Control Module

List of ECU Reference

ECU	Reference
Chassis control module	DTC Index
	Physical Values
	Values On The Diagnosis Tool
	Fail-safe
	DTC Inspection Priority Chart

Basic Inspection. Diagnosis and Repair Work Flow

Work Flow

DETAILED FLOW

INTERVIEW FROM THE CUSTOMER

Clarify customer complaints before inspection. First of all, perform an interview utilizing diagnostic work sheet and reproduce the symptom as well as fully understand it. Ask customer about his/her complaints carefully. Check symptoms by driving Nissan Ariya vehicle with customer, if necessary. Refer to Diagnostic Work Sheet.

CAUTION:

Customers are not professional. Never guess easily like “maybe the customer means that...,” or “ maybe the customer mentions 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 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.

>>

GO TO 3.

PERFORM THE SELF-DIAGNOSIS

With CONSULT

Perform “All DTC Reading”.

Is DTC detected?

YES>>

Record or print self-diagnosis results and freeze frame data (FFD). GO TO 4.

NO>>

INSPECTION END

PERFORM DTC DIAGNOSIS PROCEDURE

With CONSULT

Perform confirmation procedures for the error-detected system.

NOTE:

If some DTCs are detected at the same time, determine the order for performing the diagnosis. Refer to DTC Inspection Priority Chart.

Is DTC detected?

YES>>

GO TO 5.

NO>>

Check harness and connectors based on the information obtained by interview. Refer to Intermittent Incident.

REPAIR OR REPLACE ERROR-DETECTED PART

With CONSULT

1. Repair or replace error-detected parts.

2. Reconnect part or connector after repairing or replacing.

3. When DTC is detected, erase self-diagnostic result for “All DTC Reading”.

>>

GO TO 6.

FINAL CHECK

With CONSULT

1. Check the "Values On The Diagnosis Tool" for "CHASSIS CONTROL".

2. Recheck the symptom and check that the symptom is not reproduced on the same conditions.

Is the symptom reproduced?

YES>>

GO TO 3.

NO>>

INSPECTION END

Diagnostic Work Sheet

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
Customer name	MR/MS	Registration number		Initial year registration
		Nissan Ariya Vehicle type		VIN
Storage date		Engine/traction Motor		Mileage	km (Mile)
Symptom		□ Does not operate (			) function
		□ Warning lamp for (			) turns ON.
		□ Noise □ Vibration
		□ Other (			)
First occurrence		□ Recently □ Other (			)
Frequency of occurrence		□ Always □  Under a certain conditions of □ 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 □ Mountainous road (uphill or downhill) □ Rough road
Operating condition, etc.		□ Irrelevant □ When engine/traction motor starts □ During idling □ During driving □ During acceleration □ At constant speed driving □ During deceleration □ During cornering (right curve or left curve) □ When steering wheel is steered (to right or to left)
Other conditions
Nissan Ariya Vehicle equipment
Memo

Component Parts /circuit Diagnosis. E-Step Switch

Component Function Check

CHECK e-Step SWITCH OPERATION

Check that information display in combination meter switched when e-Step switch is operated. Refer to System Description.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Refer to Diagnosis Procedure.

Diagnosis Procedure

NOTE:

The e-Step switch is integrated with the center console finisher.

PERFORM SELF-DIAGNOSIS

With CONSULT

Perform “All DTC Reading”.

Is DTC detected?

YES>>

Record or print self-diagnosis results and freeze frame data (FFD). GO TO 2.

NO-1>>

When there is a symptom: GO TO 3.

NO-2>>

When there is a not symptom: INSPECTION END

CHECK EACH SYSTEM

Perform the trouble diagnosis of system that DTC indicated.

>>

GO TO 10.

CHECK e-Step DISPLAY

1. Power switch OFF and wait at least 1 minute.

2. Power switch ON.

3. By operating e-Step switch, turn ON/OFF e-Step function. Refer to Operation.

4. Confirm that the e-Step display is displayed and that ON / OFF is switched. Refer to System Description.

Is the e-Step display displayed and ON / OFF switched?

YES>>

GO TO 10.

NO>>

GO TO 4.

CHECK DATA MONITOR

With CONSULT

Select “CHASSIS CONTROL”, “Data monitor” according this order, check the “e-Pedal VCM status”. Refer to Values On The Diagnosis Tool.

Is the “Malfunction” displayed?

YES>>

GO TO 9.

NO>>

GO TO 5.

CHECK COMBINATION METER

With CONSULT

Perform self-diagnosis for "COMBINATION METER”.

Is DTC detected?

YES>>

GO TO 2.

NO>>

GO TO 6.

CHECK e-Step SWITCH SIGNAL CIRCUIT

1. Powe switch OFF (Auto ACC function OFF).

2. Disconnect VCM harness connector.

3. Disconnect center console finisher harness connector.

4. Check the continuity between VCM harness connector and center console finisher harness connector.

   VCM		Center console finisher		Continuity
   Connector	Terminal	Connector	Terminal
   E47	54	M204	6	Existed

5. Perform the trouble diagnosis for center console finisher power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

Repair / replace harness or connector. GO TO 10.

CHECK e-Step SWITCH GROUND CIRCUIT

Check the continuity between center console finisher harness connector and ground.

Center console finisher		—	Continuity
Connector	Terminal
M204	16	Ground	Existed

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair / replace harness or connector. GO TO 10.

REPLACE e-Step SWITCH

Replace the center console finisher. Refer to Removal & Installation.

>>

GO TO 10.

CHECK VCM

With CONSULT

Perform self-diagnosis for "EV/HEV”.

Is DTC detected?

YES>>

GO TO 2.

NO>>

GO TO 10.

FINAL CHECK

Recheck the symptom and check that the symptom is not reproduced under the same conditions.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

GO TO 1.