Nissan Leaf. Manual - part 512

EVC-72

< SYSTEM DESCRIPTION >

DIAGNOSIS SYSTEM (VCM)

DIAGNOSIS SYSTEM (VCM)

CONSULT Function

INFOID:0000000010120581

FUNCTION

*1: DTC P0AA1 is not cleared even when “Self-diagnostic Result” is cleared. To clear DTC P0AA1, perform “SPECIFIC DTC CLEAR” in
“WORK SUPPORT”.
*2: The following diagnosis information is cleared when the VCM memory is erased.
• Diagnostic trouble codes
• Freeze frame data
• Applicable operational history and count

SELF-DIAG RESULTS MODE

Self Diagnostic Item

Regarding items of DTC, refer to 

EVC-102, "DTC Index"

.

How to Erase DTC

• If power is continuously in the ON position after a DTC is detected, turn power switch OFF (self shutoff) for at

least 90 seconds before turning power switch to the ON position again, and then erase DTC. 

• Check the all self-diagnostic screen to confirm there are no DTCs in other ECUs. 

CAUTION:

• When bringing VCM into self shut off, never perform vehicle handling such as opening and closing

of doors while the power switch is OFF. If some kind of vehicle handling is performed, then wait

another 90 seconds or more from the time of the vehicle handling.

• DTC P0AA1 is not cleared even when “Self-diagnostic Result” is cleared. To clear DTC P0AA1, per-

form “SPECIFIC DTC CLEAR” in “WORK SUPPORT”.

Freeze Frame Data

The Freeze Frame Data shows the state of the vehicle at the time a DTC is detected and is useful in re-creat-

ing the circumstances that caused the malfunction. 

Freeze Frame Data Item List

Diagnostic test mode

Function

ECU Identification

VCM part number can be read.

Self-diagnostic result

*1

Self-diagnostic results and freeze frame data can be read and erased quickly.

*2

Data monitor

Input/Output data in VCM can be read.

Active test

Diagnostic Test Mode in which CONSULT drives some actuators apart from VCM and also shifts some 
parameters in a specified range.

Work support

This mode enables a technician to adjust some devices faster and more accurately by following the in-
dications on the CONSULT.

Load battery ID

Refer to “Li-ion Battery ID Registration Operation Manual”.

Freeze frame data 

item

Description

DTC

Displays a DTC.

VCM MODE

Displays VCM status.
• 0-7: During VCM starts-up
• 10: Power switch is ON and the charge connector is not connected.
• 11-29: Mode changing to READY
• 30:  READY
• 31-49: During system shutdown
• 50-59: Mode changing to charge mode.
• 60, 90: During charging
• 80-89: Mode changing to charge mode.
• 110-120: When connected to high voltage circuit except when READY or charge

*

• 131-144: During system shutdown

DIAGNOSIS SYSTEM (VCM)

EVC-73

< SYSTEM DESCRIPTION >

D

E

F

G

H

I

J

K

L

M

A

B

EVC

N

O

P

*: During 12 V battery automatic charge, remote air conditioner operation, and deice system operation.

NORMAL CHARGE 
CONNECTOR CON-
NECTION

Displays the connection status of the normal charge connector.
• 0: EVSE is not connected.
• 1: EVSE is semi-engaged.
• 2: EVSE is connected.
• 3: EVSE is malfunctioning.

QUICK CHARGE 
CONNECTOR CON-
NECTION

Displays the connection status of the quick charge connector.
• 0: Quick charge connector is not connected.
• 1: Quick charge connector is connected.

VEHICLE SPEED
[km/h] or [mph]

Displays the vehicle speed that is calculated from the motor speed.

SHIFT POSITION

Displays the shift position.

COOLANT TEMP
[degC]

Displays the coolant temperature.

MOTOR SPEED [rpm] Displays the traction motor speed.

ACCEL OPEN AN-
GLE [%]

Displays the accelerator pedal openness.

TRG TORQ [Nm]

Displays the target motor torque.

TRG POWER [N]

Displays the target motor output.

TRG REGE TORQ 
[Nm]

Displays the target motor regeneration torque.

HV BATT VOLT [V]

Displays the Li-ion battery voltage.

HV BATT CURRENT 
[A]

Displays the Li-ion battery current.

HV BATT TEMP
[degC]

Displays the Li-ion battery temperature.

REGENERABLE 
PWR [kW]

Displays the Li-ion battery regenerable power.

CHARGEABLE PWR 
MAX [kW]

Displays the Li-ion battery chargeable power.

AVAILABLE HV BAT 
PWR [kW]

Displays the Li-ion battery available discharge power.

INVERTER DC INPUT 
VOLT [V]

Displays DC input voltage of traction motor inverter.

DTC DETECTED 
MONTH [month]

Displays detection date of DTC applicable to stored FFD.

DTC DETECTED DAY 
[day]

Displays detection date of DTC applicable to stored FFD.

DTC DETECTED 
HOUR [hour]

Displays detection date of DTC applicable to stored FFD.

DTC DETECTED 
MINUTE [min]

Displays detection date of DTC applicable to stored FFD.

INSULATION RESIS-
TANCE VALUE[kohm]

Displays insulation resistance of high voltage circuit.

12V BATTERY VOLT-
AGE[mV]

Displays voltage of 12 V battery.

ESTMT PWR CNSM 
(A/C CMP)[W]

Displays the amount of electric power used by electric compressor.

ESTMT PWR CNSM 
(PTC HTR)[kW]

Displays the amount of electric power used by PTC heater.

OBC OUT PWR[kW]

Displays electric power output of PDM (Power Delivery Module).

Freeze frame data 

item

Description

EVC-74

< SYSTEM DESCRIPTION >

DIAGNOSIS SYSTEM (VCM)

DATA MONITOR MODE

NOTE:

The following table includes information (items) inapplicable to this vehicle. For information (items) applicable

to this vehicle, refer to CONSULT display items.

Monitored Item

For reference values of the following items, refer to 

EVC-84, "Reference Value"

.

X: Applicable

MONITOR ITEM

Unit

Monitor Item Selection

Description

ECU INPUT 

SIGNALS

MAIN SIG-

NALS

VCM MODE

—

X

Displays VCM status.
• 0-7: During VCM starts-up
• 10: Power switch is ON and the charge connector is 

not connected.

• 11-29: Mode changing to READY
• 30: READY
• 31-49: During system shutdown
• 50-59: Mode changing to charge mode.
• 60, 90: During charging
• 80-89: Mode changing to charge mode.
• 110-120: When connected to high voltage circuit ex-

cept when READY or charge

*

• 131-144: During system shutdown

VCM ACTIVATION

On/READY

Displays that VCM has the EV system READY. 
• On: Other than READY 
• READY: READY control in progress

MOTOR SPEED

rpm

X

X

Displays the traction motor revolution received from 
the traction motor inverter.

INVERTER DC INPUT VOLT

V

Displays the high-voltage power supply voltage being 
input to the traction motor inverter.

VEHICLE SPEED

km/h or mph

X

X

The vehicle speed computed by the motor speed sig-
nal sent from the traction motor inverter is displayed.

HI SPEC VEHICLE SPEED

km/h or mph

Displays the high accuracy vehicle speed from “VEHI-
CLE SPEED”

AMBIENT TEMP

degC

X

Displays the outside air temperature received from the 
A/C auto amp. 

CLASH DETECT INFO

• MID
• HEAVY
• ##

X

Displays the car crush information received from the 
air bag diagnosis sensor unit.
• MID: A non-serious impact was detected.
• HEAVY: A serious impact was detected.
• ##: When the impact is not detected

12V BATTERY VOLTAGE

V

X

X

The 12 V power supply voltage of VCM is displayed.

VCM POWER SUPPLY (ACT)

V

X

Displays the 12 V power supply voltage of VCM when 
VCM is started.

F/S RELAY VOLT

V

X

Displays the voltage on the F/S relay contact side that 
is being input to VCM. 

12V BATTERY TEMP

degC

X

The 12V battery temperature (determined by the sig-
nal voltage of the battery temperature sensor) is dis-
played.

12V BATTERY CURRENT AVG

A

X

X

Displays the average current of 12V battery.

ACCEL SENSOR 1 VOLT

V

X

X

Accelerator pedal position sensor 1 signal voltage is 
displayed.

ACCEL SENSOR 2 VOLT

V

X

X

Accelerator pedal position sensor 2 signal voltage is 
displayed.

ACCEL OPEN ANGLE

%

The accelerator pedal opening angle (determined by 
the signal voltage of the accelerator pedal position 
sensor) is displayed.

DIAGNOSIS SYSTEM (VCM)

EVC-75

< SYSTEM DESCRIPTION >

D

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EVC

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CURRENT MOTOR TORQ

N·m

 Displays the traction motor actual output value (esti-
mated value) received from the traction motor inverter.

TRG MOTOR TORQ 1

N·m

X

Displays the motor torque demand value VCM is re-
questing of the traction motor inverter. 

MOTOR PWR LIMIT REQ (INV) %

Displays the traction motor output limit value received 
from the traction motor inverter.

PRTCTN CNT OPERAT HIST 1

0/1/2/3

The operation history of the Charge Insulation Resis-
tance Loss Protection Control is indicated. For details 
of the protection control, refer to 

EVC-422, "Descrip-

tion"

.

• 1-3: Operation history exists. (The number of oper-

ations is indicated.)

• 0: No operation history
NOTE:
This history can be cleared by “Self-diagnostic Result 
Clear”.

GEAR POSITION DISPLAY

P/R/N/D/B

X

X

Displays the in-meter gear display request status. 
• P: When there is a P display request
• R: When there is an R display request 
• N: When there is an N display request 
• D: When there is a D display request 
• B: When there is an B display request 

PRTCTN CNT OPERAT HIST 2

0/1/2/3

The operation history of the Charging Connector-con-
necting Protection Control is indicated. For details of 
the protection control, refer to 

EVC-422, "Description"

.

• ON: Operation history exists.
• OFF: No operation history
NOTE:
This history can be cleared by “Self-diagnostic Result 
Clear”.

NEXT GEAR POSITION

• R
• N/P
• D

Displays the position of the selected selector lever.
• R: When R range is selected
• N/P: When N or P range is selected 
• D: When D, B, or ECO range is selected 

GEAR POSITION

• R
• N/P
• D

Displays the position of the currently selected selector 
lever. 
• R:  R  range
• N/P: N or P range
• D: D, B, or ECO range

COOLANT TEMP

degC

X

X

The coolant temperature (determined by the signal 
voltage of the coolant temperature sensor) is dis-
played.

WATER PUMP 1 TRG DUTY

%

X

Displays the water pump target rotation command du-
ty.

W/P 1 CRNT SPD DUTY

%

X

Displays the water pump actual rotation duty.

COOLING FAN REQ DUTY

%

X

Displays the cooling fan operation request duty.

DC/DC CONV STAT

On/STOP

Displays the status of DC/DC converter operation re-
quest sent from VCM to PDM (Power Delivery Mod-
ule).
• On: When there is a DC/DC converter operation re-

quest

• Off: No operation request

MONITOR ITEM

Unit

Monitor Item Selection

Description

ECU INPUT 

SIGNALS

MAIN SIG-

NALS