Nissan Sentra. Manual - part 422

EC-384

< DTC/CIRCUIT DIAGNOSIS >

[MRA8DE]

P1554 BATTERY CURRENT SENSOR

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Proceed to 

EC-384, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000009758638

1.

CHECK BATTERY CURRENT SENSOR POWER SUPPLY

1. Turn ignition switch OFF.

2. Disconnect battery current sensor harness connector.

3. Turn ignition switch ON.

4. Check the voltage between battery current sensor harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK SENSOR POWER SUPPLY 2 CIRCUIT

Check sensor power supply 2 circuit. Refer to 

EC-444, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> Perform the trouble diagnosis for power supply circuit.

NO

>> Repair or replace error-detected parts.

3.

CHECK BATTERY CURRENT SENSOR GROUND CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect ECM harness connector.

3. Check the continuity between battery current sensor harness connector and ECM 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 CURRENT SENSOR INPUT SIGNAL CIRCUIT

1. Check the continuity between battery current sensor harness connector and ECM harness connector.

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

YES

>> GO TO 5.

NO

>> Repair or replace error-detected parts

5.

CHECK BATTERY CURRENT SENSOR

+

−

Voltage

(Approx.)

Battery current sensor

Connector

Terminal

F54

1

Ground

5.0 V

+

−

Continuity

Battery current sensor

ECM

Connector

Terminal

Connector

Terminal

F54

3

F25

62

Existed

+

−

Continuity

Battery current sensor

ECM

Connector

Terminal

Connector

Terminal

F54

4

F25

63

Existed

P1554 BATTERY CURRENT SENSOR

EC-385

< DTC/CIRCUIT DIAGNOSIS >

[MRA8DE]

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Check the battery current sensor. Refer to 

EC-385, "Component Inspection (Battery Current Sensor)"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-39, "Intermittent Incident"

.

NO

>> Replace battery current sensor. Refer to 

PG-53, "Removal and Installation"

.

Component Inspection (Battery Current Sensor)

INFOID:0000000009758639

1.

CHECK BATTERY CURRENT SENSOR

1. Turn ignition switch OFF.

2. Reconnect harness connectors disconnected.

3. Disconnect battery negative cable.

4. Install jumper cable between battery negative terminal and body

ground.

5. Turn ignition switch ON.

6. Check the voltage between ECM harness connector terminals.

Before measuring the terminal voltage, confirm that the battery is fully charged. Refer to 

PG-4, "How to

Handle Battery"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace battery current sensor. Refer to 

PG-53, "Removal and Installation"

.

JPBIA3286ZZ

ECM

Voltage

(Approx.)

Connector

+

-

Terminal

F25

63

62

2.5 V

EC-386

< DTC/CIRCUIT DIAGNOSIS >

[MRA8DE]

P1556, P1557 BATTERY TEMPERATURE SENSOR

P1556, P1557 BATTERY TEMPERATURE SENSOR

DTC Logic

INFOID:0000000009758640

DTC DETECTION LOGIC

NOTE:

If DTC P1556 or P1557 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643.

Refer to 

EC-353, "DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

1. Turn ignition switch OFF and wait at least 10 seconds.

2. Turn ignition switch ON.

3. Turn ignition switch OFF and wait at least 10 seconds.

TESTING CONDITION:

Before performing the following procedure, confirm that battery voltage is 10 V or more at idle.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

1. Start the engine and let it idle at least 10 seconds.

2. Check 1st trip DTC.
Is 1st trip DTC detected?

YES

>> Proceed to 

EC-386, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009758641

1.

CHECK BATTERY TEMPERATURE SENSOR POWER SUPPLY

1. Turn ignition switch OFF.

2. Disconnect battery current sensor harness connector.

3. Turn ignition switch ON.

4. Check the voltage between battery current sensor harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK BATTERY TEMPERATURE SENSOR POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect ECM harness connector.

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

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P1556

BAT TMP SEN/CIRC
(BAT TMP SEN/CIRC)

Signal voltage from Battery temperature 
sensor remains 0.16V or less for 5 sec-
onds or more.

• Harness or connectors

[Battery current sensor (Battery tem-
perature sensor) circuit is shorted.]

• Battery current sensor (Battery tem-

perature sensor)

P1557

BAT TMP SEN/CIRC
(BAT TMP SEN/CIRC)

Signal voltage from Battery temperature 
sensor remains 4.84V or more for 5 sec-
onds or more.

+

−

Voltage

(Approx.)

Battery current sensor

Connector

Terminal

F54

2

Ground

5 V

P1556, P1557 BATTERY TEMPERATURE SENSOR

EC-387

< DTC/CIRCUIT DIAGNOSIS >

[MRA8DE]

C

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

YES

>> Perform the trouble diagnosis for power supply circuit.

NO

>> Repair or replace error-detected parts.

3.

CHECK BATTERY TEMPERATURE SENSOR GROUND CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect ECM harness connector.

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

EC-387, "Component Inspection"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-39, "Intermittent Incident"

.

NO

>> Replace battery negative cable assembly.

Component Inspection

INFOID:0000000009758642

1.

CHECK BATTERY TEMPERATURE SENSOR

1. Turn ignition switch OFF.

2. Disconnect battery current sensor.

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

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace battery negative cable assembly.

+

−

Continuity

Battery current sensor

ECM

Connector

Terminal

Connector

Terminal

F54

2

F25

61

Existed

+

−

Continuity

Battery current sensor

ECM

Connector

Terminal

Connector

Terminal

F54

3

F25

62

Existed

Battery current sensor

Resistance

+

−

Terminal

2

3

Continuity with the resistance value 100 

Ω or more