Nissan Juke Service and Repair Manual : P1554 battery current sensor
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM COMPONENT FUNCTION CHECK
Perform component function check. Refer to EC-337, "Component Function Check".
NOTE
:
Use component function check to check the overall function of the battery
current sensor circuit. During this
check, a 1st trip DTC might not be confirmed.
Is the inspection result normal? YES >> INSPECTION END
NO >> Proceed to EC-338, "Diagnosis Procedure".
Component Function Check
1.PRECONDITIONING
TESTING CONDITION: • Before performing the following procedure, confirm that battery voltage is more than 12.8 V at idle.
• Before performing the following procedure, confirm that all load switches and A/C switch are turned OFF.
>> GO TO 2.
2.PERFORM COMPONENT FUNCTION CHECK
With CONSULT-III
1. Start engine and let it idle.
2. Select “BAT CUR SEN” in “DATA MONITOR” mode of “ENGINE” using CONSULT-III.
3. Check “BAT CUR SEN” indication for 10 seconds.
“BAT CUR SEN” should be above 2,300 mV at least once.
Without CONSULT-III
1. Start engine and let it idle.
2. Check the voltage between ECM harness connector and ground.
Is the inspection result normal? YES >> INSPECTION END
NO >> Proceed to EC-338, "Diagnosis Procedure".
Diagnosis Procedure
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 CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness connector for short to power and short to ground, between the following terminals.
*1: LHD models or RHD with CVT models *2: RHD with M/T models
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
Check the battery current sensor. Refer to EC-330, "Component Inspection".
Is the inspection result normal? YES >> Check intermittent incident. Refer to GI-42, "Intermittent Incident".
NO >> Replace battery negative cable assembly. Refer to PG-125, "Exploded View".
Component Inspection
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 and ground.
Before measuring the terminal voltage, confirm that the battery is fully charged. Refer to PG-111, "How to Handle Battery".
Is the inspection result normal? YES >> INSPECTION END
NO >> Replace battery negative cable assembly. Refer to PG-125, "Exploded View".
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Exploded View
1. Grommet
2. Clip
3. Clip
4. Front fillet molding
5. Rear fillet molding
: Pawl
: Do not reuse
Front fillet molding
FRONT FILLET MOLDING : Removal and Installation
REMOVAL
1. Remove front fillet molding fixing clips.
2. Remove front fillet molding front side fixing pa ...
Rear power window switch
Component Function Check
1. CHECK REAR POWER WINDOW SWITCH FUNCTION
Check rear power window motor operation with rear power window switch.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Refer to PWC-24, "Diagnosis Procedure".
Diagnosis Procedure
1.CHECK R ...
Power door lock system
System Diagram
System Description
DOOR LOCK FUNCTION
• The door lock and unlock switch (driver side) is build into power window
main switch.
• The door lock and unlock switch (passenger side) is build into front power
window switch (passenger side).
• Interlocked with the locking operatio ...