Nissan Pathfinder. Manual — part 517
EC-374
< DTC/CIRCUIT DIAGNOSIS >
[VQ35DE]
P1556, P1557 BATTERY TEMPERATURE SENSOR
P1556, P1557 BATTERY TEMPERATURE SENSOR
DTC Logic
INFOID:0000000009178292
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, 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
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000009178293
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 SENSOR INPUT SIGNAL CIRCUIT
1. Turn ignition switch ON.
2. Disconnect ECM harness connector.
DTC No.
CONSULT screen terms
(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) circuit is shorted.]
[Camshaft position sensor (PHESE) cir-
cuit is open or shorted.]
(Accelerator pedal position sensor 2 cir-
cuit is shorted.)
(Throttle position sensor circuit is short-
ed.)
• Battery current sensor (Battery temper-
ature 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
F34
2
Ground
Approx. 5
P1556, P1557 BATTERY TEMPERATURE SENSOR
EC-375
< 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-376, "Component Inspection (Battery Temperature Sensor)"
.
Is the inspection result normal?
YES
>> Check intermittent incident. Refer to
GI-49, "Intermittent Incident"
.
NO
>> Replace battery negative cable assembly.
Component Inspection (Battery Temperature Sensor)
INFOID:0000000009178294
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
F34
2
F52
67
Existed
Battery current sensor
ECM
Continuity
Connector
Terminal
Connector
Terminal
F34
3
F52
68
Existed
Battery current sensor
Resistance
+
−
Terminal
2
3
continuity with the resis-
tance value 100
Ω or more
EC-376
< DTC/CIRCUIT DIAGNOSIS >
[VQ35DE]
P1564 ASCD STEERING SWITCH
P1564 ASCD STEERING SWITCH
DTC Logic
INFOID:0000000009178295
DTC DETECTION LOGIC
NOTE:
If DTC P1564 is displayed with DTC P0605, first perform the trouble diagnosis for DTC P0605. Refer to
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, 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.
>> GO TO 2.
2.
PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON and wait at least 10 seconds.
2. Press MAIN switch for at least 10 seconds, then release it and wait at least 10 seconds.
3. Press CANCEL switch for at least 10 seconds, then release it and wait at least 10 seconds.
4. Press RESUME/ACCELERATE switch for at least 10 seconds, then release it and wait at least 10 sec-
onds.
5. Press SET/COAST switch for at least 10 seconds, then release it and wait at least 10 seconds.
6. Check DTC.
Is DTC detected?
YES
>> Proceed to
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000009178296
1.
CHECK ASCD STEERING SWITCH CIRCUIT
With CONSULT
1. Turn ignition switch ON.
2. Select “MAIN SW”, “CANCEL SW”, “RESUME/ACC SW” and “SET SW” in “DATA MONITOR” mode with
CONSULT.
3. Check each item indication under the following conditions.
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P1564
ASCD SW
(ASCD steering switch)
• An excessively high voltage signal from the
ASCD steering switch is sent to ECM.
• ECM detects that input signal from the
ASCD steering switch is out of the specified
range.
• ECM detects that the ASCD steering switch
is stuck ON.
• Harness or connectors
(The switch circuit is open or shorted.)
• ASCD steering switch
• ECM
Monitor item
Condition
Indication
MAIN SW
ON/OFF (MAIN)
switch
Pressed
ON
Released
OFF
CANCEL SW
CANCEL switch
Pressed
ON
Released
OFF
P1564 ASCD STEERING SWITCH
EC-377
< DTC/CIRCUIT DIAGNOSIS >
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Without CONSULT
1. Turn ignition switch ON.
2. Check the voltage between ECM harness connector terminals under the following conditions.
Is the inspection result normal?
YES
>> Check intermittent incident. Refer to
GI-49, "Intermittent Incident"
.
NO
>> GO TO 2.
2.
CHECK ASCD STEERING SWITCH GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Disconnect combination switch harness connector M149.
4. Check the continuity between combination switch and ECM 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 combination switch 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 or replace error-detected parts.
4.
CHECK ASCD STEERING SWITCH
Check ASCD steering switch. Refer to
EC-379, "Component Inspection"
Is the inspection result normal?
YES
>> Check intermittent incident. Refer to
GI-49, "Intermittent Incident"
.
NO
>> Replace ASCD steering switch. Refer to
ST-44, "Removal and Installation"
.
RESUME/ACC SW
ACCEL/RES switch
Pressed
ON
Released
OFF
SET SW
COAST/SET switch
Pressed
ON
Released
OFF
ECM
Condition
Voltage (V)
Con-
nector
+
–
Terminal
Terminal
E16
101
108
ON/OFF (MAIN) switch: Pressed
Approx. 0
CANCEL switch: Pressed
Approx. 1
COAST/SET switch: Pressed
Approx. 2
ACCEL/RES switch: Pressed
Approx. 3
All ASCD steering switches: Released
Approx. 4
Monitor item
Condition
Indication
Combination switch
ECM
Continuity
Terminal
Connector
Terminal
16
E16
108
Existed
Combination switch
ECM
Continuity
Terminal
Connector
Terminal
13
E16
101
Existed
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