P1553 BATTERY CURRENT SENSOREC-901
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
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P1553 BATTERY CURRENT SENSOR
DTC LogicINFOID:0000000009462762
DTC DETECTION LOGIC
NOTE:
If DTC P1553 is displayed with DTC P0643, first pe rform the trouble diagnosis for DTC P0643. Refer to
EC-885, "DTC Logic"
.
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conduc ted, always perform the following before conduct-
ing the next test.
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 more than 8 V at idle.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Start engine and wait at least 10 seconds.
2. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Proceed to EC-901, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000009462763
1.CHECK BATTERY CURRENT SENSOR POWER SUPPLY
1. Disconnect battery current sensor harness connector.
2. Turn ignition switch ON.
3. Check the voltage between battery cu rrent sensor harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair open circuit, short to ground or short to power in harness or connectors.
2.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.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1553 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
Battery current sensor Ground Voltage (V)
Connector Terminal
F5 1 Ground Approx. 5
Battery current sensor ECM Continuity
Connector Terminal Connector Terminal
F5 3 F79 68 Existed
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
EC-902
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
P1553 BATTERY CURRENT SENSOR
4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair open circuit, short to ground or short to power in harness or connectors.
3.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 short to power.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair open circuit, short to ground or short to power in harness or connectors.
4.CHECK BATTERY CURRENT SENSOR
Check battery current sensor. Refer to EC-904, "Component Inspection"
.
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-43, "Intermittent Incident".
NO >> Replace battery negative cable assembly.
Component InspectionINFOID:0000000009462764
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 under the following conditions.
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 negative cable assembly.
Battery current sensor ECM Continuity
Connector Terminal Connector Terminal
F5 4 F79 66 Existed
ECM Voltage (V)
Connector +–
Te r m i n a l Te r m i n a l
F79 66 68 Approx. 2.5
JPBIA3287ZZ
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
P1554 BATTERY CURRENT SENSOREC-903
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
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P1554 BATTERY CURRENT SENSOR
DTC LogicINFOID:0000000009462765
DTC DETECTION LOGIC
NOTE:
If DTC P1554 is displayed with DTC P0643, first pe rform the trouble diagnosis for DTC P0643. Refer to
EC-885, "DTC Logic"
.
DTC CONFIRMATION PROCEDURE
1.PERFORM COMPONENT FUNCTION CHECK
Perform component function check. Refer to EC-903, "Component Function Check"
.
NOTE:
Use component function check to check the overall functi on 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-903, "Diagnosis Procedure"
.
Component Function CheckINFOID:0000000009462766
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, confi rm that all load switches and A/C switch are turned
OFF.
>> GO TO 2.
2.PERFORM COMPONENT FUNCTION CHECK
With CONSULT
1. Start engine and let it idle.
2. Select “BAT CUR SEN” in “DATA MONITOR” mode with CONSULT.
3. Check “BAT CUR SEN” indication for 10 seconds.
“BAT CUR SEN” should be above 2,300mV at least once.
Without CONSULT
1. Start engine and let it idle.
2. Check voltage between ECM harness connector terminals under the following conditions.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Proceed to EC-903, "Diagnosis Procedure"
Diagnosis ProcedureINFOID:0000000009462767
1.CHECK BATTERY CURRENT SENSOR POWER SUPPLY
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1554 Battery current sensor perfor-
mance The output voltage of the battery current
sensor is lower than the specified value
while the battery voltage is high enough. • Harness or connectors
(The sensor circuit is open or shorted.)
• Battery current sensor
ECM
Voltage (V)
Connector +–
Te r m i n a l
F79 66 68 Above 2.3 at least once
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
EC-904
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
P1554 BATTERY CURRENT SENSOR
1. Disconnect battery current sensor harness connector.
2. Turn ignition switch ON.
3. Check the voltage between battery current sensor harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair open circuit, short to ground or short to power in harness or connectors.
2.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 ground and short to power.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair open circuit, short to ground or short to power in harness or connectors.
3.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 short to power.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair open circuit, short to ground or short to power in harness or connectors.
4.CHECK BATTERY CURRENT SENSOR
Check battery current sensor. Refer to EC-904, "Component Inspection"
.
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-43, "Intermittent Incident".
NO >> Replace battery negative cable assembly.
Component InspectionINFOID:0000000009462768
1.CHECK BATTERY CURRENT SENSOR
1. Turn ignition switch OFF.
2. Reconnect harness connectors disconnected.
Battery current sensor Ground Voltage (V)
Connector Terminal
F5 1 Ground Approx. 5
Battery current sensor ECM Continuity
Connector Terminal Connector Terminal
F5 3 F79 68 Existed
Battery current sensor ECM Continuity
Connector Terminal Connector Terminal
F5 4 F79 66 Existed
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
P1554 BATTERY CURRENT SENSOREC-905
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
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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 under the following conditions.
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 negative cable assembly.
ECM
Voltage (V)
Connector +–
Te r m i n a l Te r m i n a l
F79 66 68 Approx. 2.5
JPBIA3287ZZ
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
EC-906
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
P1556, P1557 BATTERY
TEMPERATURE SENSOR
P1556, P1557 BATTERY TEMPERATURE SENSOR
DTC LogicINFOID:0000000009462769
DTC DETECTION 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, confi rm 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-906, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000009462770
1.CHECK BATTERY TEMPERATURE SENSOR INPUT SIGNAL
1. Disconnect battery current sensor harness connector.
2. Turn ignition switch ON.
3. 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 SE NSOR INPUT SIGNAL CIRCUIT
1. Turn ignition switch ON.
2. Disconnect ECM harness connector.
DTC No. Trouble diagnosis name
(Trouble diagnosis content) DTC detecting condition Possible cause
P1556 BAT TMP SEN/CIRC
(Battery temperature sensor cir-
cuit low input) 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) ci rcuit is shorted.]
[Camshaft position sensor (PHESE)
circuit is open or shorted.]
(Accelerator pedal position sensor 2
circuit is shorted.)
(Throttle position sensor circuit is
shorted.)
• Battery current sensor (Battery tem-
perature sensor)
• Camshaft position sensor (PHESE)
• Accelerator pedal position sensor
• Throttle position sensor
P1557
BAT TMP SEN/CIRC
(Battery temperature sensor cir-
cuit high input) Signal voltage from Battery temperature
sensor remains 4.84V or more for 5 sec-
onds or more.
Battery current sensor Ground Voltage (V)
Connector Terminal
F5 2 Ground Approx. 5
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
P1556, P1557 BATTERY TEMPERATURE SENSOR
EC-907
< DTC/CIRCUIT DIAGNOSIS > [VQ35DE]
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3. Check the continuity between battery current
sensor harness connector and ECM harness connector.
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 ground and short to power.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair open circuit, short to ground or short to power in harness or connectors.
4.CHECK BATTERY TEMPERATURE SENSOR
Check battery temperature sensor. Refer to EC-907, "Component Inspection (Battery Temperature Sensor)"
.
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-43, "Intermittent Incident".
NO >> Replace battery negative cable assembly.
Component Inspection (Bat tery Temperature Sensor)INFOID:0000000009462771
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.
Battery current sensor ECM Continuity
Connector Terminal Connector Terminal
F5 2 F79 67 Existed
Battery current sensor ECM Continuity
Connector Terminal Connector Terminal
F5 3 F79 68 Existed
Battery current sensor Resistance
+ −
Te r m i n a l
23 continuity with the resis-
tance value 100 Ω or more
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
EC-912
< DTC/CIRCUIT DIAGNOSIS >[VQ35DE]
P1572 ASCD BRAKE SWITCH
This procedure may be conducted with the drive wheel
s lifted in the shop or by driving the vehicle.
If a road test is expected to be easier , it is unnecessary to lift the vehicle.
5. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Go to EC-913, "Diagnosis Procedure".
NO >> GO TO 4.
4.PERFORM DTC CONFIRMATION PROCEDURE A-II
1. Drive the vehicle for at least 5 consecutive seconds under the following conditions. CAUTION:
Always drive vehicle at a safe speed.
NOTE:
This procedure may be conducted with the drive wheel s lifted in the shop or by driving the vehicle.
If a road test is expected to be easier , it is unnecessary to lift the vehicle.
2. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Go to EC-913, "Diagnosis Procedure".
NO >> INSPECTION END
5.PERFORM COMPONENT FUNCTION CHECK
Perform component function check. Refer to EC-912, "Component Function Check"
.
NOTE:
Use component function check to check the overall function of brake pedal position switch. During this check,
a DTC might not be confirmed.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Go to EC-913, "Diagnosis Procedure"
.
Component Function CheckINFOID:0000000009462777
1.PERFORM COMPONENT FUNCTION CHECK
1. Turn ignition switch ON.
2. Check the voltage between ECM harness connectors.
Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 2.
VHCL SPEED SE More than 30 km/h (19 mph)
Selector lever Suitable position
VHCL SPEED SE More than 30 km/h (19 mph)
Selector lever Suitable position
Driving location Depress the brake pedal for more than
five seconds so as not to come off from
the above-mentioned vehicle speed.
ECM
Condition Voltage
Con-
nector +–
Terminal Terminal
E32 126 128 Brake pedal Slightly
depressed Approx. 0 V
Fully re-
leased Battery voltage
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM