Nissan Pathfinder (2006 year). Manual - part 207

 

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Nissan Pathfinder (2006 year). Manual - part 207

 

 

DTC P1551, P1552 BATTERY CURRENT SENSOR

EC-515

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2006 Pathfinder

2.

Select “DATA MONITOR” mode with CONSULT-II.

3.

Wait at least 10 seconds.

4.

If 1st trip DTC is detected, go to 

EC-517, "Diagnostic Procedure"

.

 WITH GST

Follow the procedure “WITH CONSULT-II” above.

SEF058Y

EC-516

DTC P1551, P1552 BATTERY CURRENT SENSOR

2006 Pathfinder

Wiring Diagram

UBS00KTO

BBWA1783E

DTC P1551, P1552 BATTERY CURRENT SENSOR

EC-517

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2006 Pathfinder

Specification data are reference values and are measured between each terminal and ground.

CAUTION:

Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECMs transistor. Use a ground other than ECM terminals, such as the ground.

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

SC-5, "SPECIFIC GRAVITY CHECK"

 .

Diagnostic Procedure

UBS00KTP

1. 

CHECK GROUND CONNECTIONS

1.

Turn ignition switch OFF.

2.

Loosen and retighten three ground screws on the body.
Refer to 

EC-151, "Ground Inspection"

 .

OK or NG

OK

>> GO TO 2.

NG

>> Repair or replace ground connections.

TER-

MINAL 

NO.

WIRE 

COLOR

ITEM

CONDITION

DATA (DC Voltage)

49

P

Sensor power supply
(Refrigerant pressure sen-
sor/Battery current sensor)

[Ignition switch: ON]

Approximately 5V

67

B

Sensor ground

[Engine is running]

●

Warm-up condition

●

Idle speed

Approximately 0V

71

R

Battery current sensor

[Engine is running]

●

Battery: Fully charged*

●

Idle speed

Approximately 2.6 - 3.5 V

BBIA0539E

EC-518

DTC P1551, P1552 BATTERY CURRENT SENSOR

2006 Pathfinder

2. 

CHECK BATTERY CURRENT SENSOR POWER SUPPLY CIRCUIT

1.

Disconnect battery current sensor harness connector.

2.

Turn ignition switch ON.

3.

Check voltage between battery current sensor terminal 1 and
ground with CONSULT-II or tester.

OK or NG

OK

>> GO TO 4.

NG

>> GO TO 3.

3. 

DETECT MALFUNCTIONING PART

Check the following.

●

Harness connectors E5, F14

●

Harness for open or short between battery current sensor and ECM

>> Repair circuit or short to ground or short to power in harness or connectors.

4. 

CHECK BATTERY CURRENT SENSOR GROUND CIRCUIT FOR OPEN AND SHORT

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

Check harness continuity between battery current sensor terminal 2 and ECM terminal 67.

4.

Also check harness for short to ground and short to power.

OK or NG

OK

>> GO TO 6.

NG

>> GO TO 5.

5. 

DETECT MALFUNCTIONING PART

Check the following.

●

Harness connectors E5, F14

●

Harness for open or short between battery current sensor and ECM

>> Repair circuit or short to ground or short to power in harness or connectors.

BBIA0582E

Voltage: Approximately 5V

PBIB2609E

Continuity should exist.

DTC P1551, P1552 BATTERY CURRENT SENSOR

EC-519

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6. 

CHECK BATTERY CURRENT SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

1.

Check harness continuity between battery current sensor terminal 3 and ECM terminal 71.

2.

Also check harness for short to ground and short to power.

OK or NG

OK

>> GO TO 8.

NG

>> GO TO 7.

7. 

DETECT MALFUNCTIONING PART

Check the following.

●

Harness connectors E5, F14

●

Harness for open or short between battery current sensor and ECM

>> Repair circuit or short to ground or short to power in harness or connectors.

8. 

CHECK BATTERY CURRENT SENSOR

Refer to 

EC-519, "Component Inspection"

 .

OK or NG

OK

>> GO TO 9.

NG

>> Replace battery negative cable assembly.

9. 

CHECK INTERMITTENT INCIDENT

Refer to 

EC-144, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"

 .

>> INSPECTION END

Component Inspection

UBS00KTQ

BATTERY CURRENT SENSOR

1.

Reconnect harness connectors disconnected.

2.

Disconnect battery negative cable.

3.

Install jumper cable between battery negative terminal and body
ground.

4.

Turn ignition switch ON.

Continuity should exist.

BBIA0588E

EC-520

DTC P1551, P1552 BATTERY CURRENT SENSOR

2006 Pathfinder

5.

Check voltage between ECM terminal 71 (battery current sensor
signal) and ground.

6.

If NG, replace battery negative cable assembly.

Voltage: Approximately 2.5V

PBIB2617E

DTC P1553 BATTERY CURRENT SENSOR

EC-521

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2006 Pathfinder

DTC P1553 BATTERY CURRENT SENSOR

PFP:294G0

Component Description

UBS00KTR

The power generation voltage variable control enables fuel con-
sumption to be decreased by reducing the engine load which is
caused by the power generation of the generator. The battery cur-
rent sensor is installed to the battery cable at the negative terminal.
The sensor measures the charging/discharging current of the bat-
tery. Based on the sensor signal, ECM judges whether or not the
power generation voltage variable control is performed. When per-
forming the power generation voltage variable control, ECM calcu-
lates the target power generation voltage based on the sensor
signal. And ECM sends the calculated value as the power genera-
tion command value to IPDM E/R. For the details of the power gen-
eration voltage variable control, refer to SC section.

CAUTION:

Do not connect the electrical component or the ground wire directly to the battery terminal. The con-
nection causes the malfunction of the power generation voltage variable control, and then the battery
discharge may occur.

CONSULT-II Reference Value in Data Monitor Mode

UBS00KTS

Specification data are reference values.

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

SC-5, "SPECIFIC GRAVITY CHECK"

 .

On Board Diagnosis Logic

UBS00KTT

The MIL will not light up for this diagnosis.

NOTE:
If DTC P1553 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643. Refer to

EC-479, "DTC P0643 SENSOR POWER SUPPLY"

 .

DTC Confirmation Procedure

UBS00KTU

If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 8V at idle.

 WITH CONSULT-II

1.

Turn ignition switch ON.

BBIA0582E

MONITOR ITEM

CONDITION

SPECIFICATION

BAT CUR SEN

●

Engine speed: Idle

●

Battery: Fully charged*

●

Shift lever: P or N

●

Air conditioner switch: OFF

●

No load

Approx. 2,600 - 3,500mV

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P1553
1553

Battery current sensor perfor-
mance

The signal voltage transmitted from the 
sensor to ECM is higher than the amount 
of the maximum power generation.

●

Harness or connectors
(The sensor circuit is open or shorted.)

●

Battery current sensor

EC-522

DTC P1553 BATTERY CURRENT SENSOR

2006 Pathfinder

2.

Select “DATA MONITOR” mode with CONSULT-II.

3.

Start engine and wait at least 10 seconds.

4.

If 1st trip DTC is detected, go to 

EC-524, "Diagnostic Procedure"

.

 WITH GST

Follow the procedure “WITH CONSULT-II” above.

SEF058Y

 

 

 

 

 

 

 

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