Nissan Leaf. Manual - part 543

EVC-196

< DTC/CIRCUIT DIAGNOSIS >

P155A BATTERY TEMPERATURE SENSOR

2.

CHECK BATTERY TEMPERATURE SENSOR POWER SUPPLY CIRCUIT

1. Turn power switch OFF.

2. Disconnect VCM harness connector.

3. Check the continuity between battery current sensor harness connector and VCM harness connector.

4. Also check harness for short to ground and short to power.
Is the inspection result normal?

YES

>> Perform the trouble diagnosis for power supply circuit. Refer to 

EVC-138, "VCM : Diagnosis Pro-

cedure"

.

NO

>> Repair or replace error-detected parts.

3.

CHECK BATTERY TEMPERATURE SENSOR GROUND CIRCUIT

1. Turn power switch OFF.

2. Disconnect VCM harness connector.

3. Check the continuity between battery current sensor harness connector and VCM harness connector.

4. Also check harness for short to power.
Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace error-detected parts.

4.

CHECK BATTERY TEMPERATURE SENSOR

Check the battery temperature sensor. Refer to 

EVC-196, "Component Inspection"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-53, "Intermittent Incident"

.

NO

>> Replace battery current sensor. Refer to 

PG-93, "Removal and Installation"

.

Component Inspection

INFOID:0000000010120648

1.

CHECK BATTERY TEMPERATURE SENSOR

1. Turn power switch OFF.

2. Disconnect battery current sensor harness connector.

3. Check the resistance between battery current sensor connector terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace battery current sensor (with battery temperature sensor). Refer to 

PG-93, "Removal and

Installation"

.

+

−

Continuity

Battery current sensor

VCM

Connector

Terminal

Connector

Terminal

E125

3

E62

107

Existed

+

−

Continuity

Battery current sensor

VCM

Connector

Terminal

Connector

Terminal

E125

2

E62

120

Existed

Battery current sensor

Condition

Resistance

+

−

Terminal

3

2

Temperature: 25

°C (77°F)

1.9 – 2.1 k

Ω

P1564 ASCD STEERING SWITCH

EVC-197

< DTC/CIRCUIT DIAGNOSIS >

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EVC

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P1564 ASCD STEERING SWITCH

DTC Logic

INFOID:0000000010120649

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

• Turn power switch OFF and wait at least 90 seconds.

CAUTION:

During this period, never perform vehicle handling such as opening and closing of doors. If some

kind of vehicle handling is performed, then wait another 90 seconds or more from the time of the

vehicle handling.

• Make sure that 12V battery voltage is 11 V or more.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT

1. Turn power switch ON and wait at least 10 seconds.

2. Press CANCEL switch for at least 10 seconds, then release it and wait at least 10 seconds.

3. Press RESUME/ACCELERATE switch for at least 10 seconds, then release it and wait at least 10 sec-

onds.

4. Press SET/COAST switch for at least 10 seconds, then release it and wait at least 10 seconds.

5. Press ECO mode switch for at least 10 seconds, then release it and wait at least 10 seconds.

6. Check self-diagnostic result.
Is DTC detected?

YES

>> Proceed to 

EVC-197, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000010120650

1.

CHECK ASCD STEERING SWITCH CIRCUIT

 With CONSULT

1. Turn power switch ON.

2. On the CONSULT screen, select “EV/HEV” >> “DATA MONITOR” >> “ASCD MAIN SW”, “ASCD CANCEL

SW”, “RESUME/ACC SW”, “ASCD SET SW”, and “ECO MODE”.

3. Check each item indication under the following conditions.

DTC

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P1564

ASCD SWITCH
(ASCD switch)

• An excessively high voltage signal from the ASCD 

steering switch is sent to VCM.

• VCM detects that input signal from the ASCD 

steering switch is out of the specified range.

• VCM detects that the ASCD steering switch is 

stuck ON.

• Harness or connectors

(The switch circuit is open or 
shorted.)

• ASCD steering switch
• VCM

Monitor item

Condition

Indication

ASCD MAIN SW

ASCD MAIN switch

Pressed

On

Released

Off

ASCD CANCEL 
SW

CANCEL switch

Pressed

On

Released

Off

RESUME/ACC SW

RESUME/ACCELERATE 
switch

Pressed

On

Released

Off

EVC-198

< DTC/CIRCUIT DIAGNOSIS >

P1564 ASCD STEERING SWITCH

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-53, "Intermittent Incident"

.

NO

>> GO TO 2.

2.

CHECK ASCD STEERING SWITCH GROUND CIRCUIT

1. Turn power switch OFF.

2. Disconnect VCM harness connector.

3. Disconnect spiral cable harness connector.

4. Check the continuity between spiral cable harness connector and VCM harness connector.

5. Also check harness for short to ground and short to power.
Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace error-detected parts.

3.

CHECK ASCD STEERING SWITCH INPUT SIGNAL CIRCUIT

1. Check the continuity between spiral cable harness connector and VCM harness connector.

2. Also check harness for short to ground and short to power.
Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace error-detected parts.

4.

CHECK ASCD STEERING SWITCH

Refer to 

EVC-198, "Component Inspection (ASCD STEERING SWITCH)"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-53, "Intermittent Incident"

.

NO

>> Replace ASCD steering switch. Refer to 

SR-20, "Exploded View"

.

Component Inspection (ASCD STEERING SWITCH)

INFOID:0000000010120651

1.

CHECK ASCD STEERING SWITCH

1. Turn power switch OFF.

2. Disconnect spiral cable harness connector.

3. Check resistance between spiral cable harness connector terminals under the following conditions.

ASCD SET SW

SET/COAST switch

Pressed

On

Released

Off

ECO MODE

Operate the ECO mode SW to put into 
ECO mode.

On

Operate the ECO mode SW again to 
cancel ECO mode.

Off

Monitor item

Condition

Indication

+

−

Continuity

Spiral cable

VCM

Connector

Terminal

Connector

Terminal

M33

32

E62

125

Existed

+

−

Continuity

Spiral cable

VCM

Connector

Terminal

Connector

Terminal

M33

25

E62

111

Existed

P1564 ASCD STEERING SWITCH

EVC-199

< DTC/CIRCUIT DIAGNOSIS >

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Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace ASCD steering switch. Refer to 

SR-20, "Exploded View"

.

Combination switch

Condition

Resistance (

Ω)

Connector

Terminals

M33

25 and 32

ASCD main switch: Pressed

Approx. 0

CANCEL switch: Pressed

Approx. 309

SET/COAST switch: Pressed

Approx. 741

RESUME/ACCELERATE switch: Pressed Approx. 1,406

ECO mode switch: Pressed

Approx. 2,586

All ASCD steering switches: Released

Approx. 5,456