Nissan Pathfinder (2006 year). Manual — part 209
DTC P1554 BATTERY CURRENT SENSOR
EC-531
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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
UBS00KU3
1.
CHECK GROUND CONNECTIONS
1.
Turn ignition switch OFF.
2.
Loosen and retighten three ground screws on the body.
Refer to
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-532
DTC P1554 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 open 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 open circuit or short to ground or short to power in harness or connectors.
BBIA0582E
Voltage: Approximately 5V
PBIB2609E
Continuity should exist.
DTC P1554 BATTERY CURRENT SENSOR
EC-533
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2006 Pathfinder
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 open circuit or short to ground or short to power in harness or connectors.
8.
CHECK BATTERY CURRENT SENSOR
Refer to
EC-533, "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
UBS00KU4
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-534
DTC P1554 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 P1564 ASCD STEERING SWITCH
EC-535
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2006 Pathfinder
DTC P1564 ASCD STEERING SWITCH
PFP:25551
Component Description
UBS00KFV
ASCD steering switch has variant values of electrical resistance for each button. ECM reads voltage variation
of switch, and determines which button is operated.
Refer to
EC-29, "AUTOMATIC SPEED CONTROL DEVICE (ASCD)"
CONSULT-II Reference Value in Data Monitor Mode
UBS00KFW
Specification data are reference values.
On Board Diagnosis Logic
UBS00KFX
This self-diagnosis has the one trip detection logic.
The MIL will not light up for this diagnosis.
NOTE:
If DTC P1564 is displayed with DTC P0605, first perform the trouble diagnosis for DTC P0605. Refer to
PBIB2645E
MONITOR ITEM
CONDITION
SPECIFICATION
MAIN SW
●
Ignition switch: ON
MAIN switch: Pressed
ON
MAIN switch: Released
OFF
CANCEL SW
●
Ignition switch: ON
CANCEL switch: Pressed
ON
CANCEL switch: Released
OFF
RESUME/ACC SW
●
Ignition switch: ON
RESUME/ACCELERATE switch:
Pressed
ON
RESUME/ACCELERATE switch:
Released
OFF
SET SW
●
Ignition switch: ON
SET/COAST switch: Pressed
ON
SET/COAST switch: Released
OFF
DTC No.
Trouble Diagnosis
Name
DTC Detecting Condition
Possible Cause
P1564
1564
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
EC-536
DTC P1564 ASCD STEERING SWITCH
2006 Pathfinder
DTC Confirmation Procedure
UBS00KFY
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
WITH CONSULT-II
1.
Turn ignition switch ON.
2.
Select “DATA MONITOR” mode with CONSULT-II.
3.
Wait at least 10 seconds.
4.
Press MAIN switch for at least 10 seconds, then release it and
wait at least 10 seconds.
5.
Press CANCEL switch for at least 10 seconds, then release it
and wait at least 10 seconds.
6.
Press RESUME/ACCELERATE switch for at least 10 seconds,
then release it and wait at least 10 seconds.
7.
Press SET/COAST switch for at least 10 seconds, then release
it and wait at least 10 seconds.
8.
If DTC is detected, go to
EC-538, "Diagnostic Procedure"
WITH GST
Follow the procedure “WITH CONSULT-II” above.
SEF058Y
DTC P1564 ASCD STEERING SWITCH
EC-537
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2006 Pathfinder
Wiring Diagram
UBS00KFZ
BBWA2372E
EC-538
DTC P1564 ASCD STEERING SWITCH
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 ECM's transistor. Use a ground other than ECM terminals, such as the ground.
Diagnostic Procedure
UBS00KG0
1.
CHECK GROUND CONNECTIONS
1.
Turn ignition switch OFF.
2.
Loosen and retighten three ground screws on the body. Refer to
OK or NG
OK
>> GO TO 2.
NG
>> Repair or replace ground connections.
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
67
B
Sensor ground
[Engine is running]
●
Warm-up condition
●
Idle speed
Approximately 0V
99
SB
ASCD steering switch
[Ignition switch: ON]
●
ASCD steering switch: OFF
Approximately 4V
[Ignition switch: ON]
●
MAIN switch: Pressed
Approximately 0V
[Ignition switch: ON]
●
CANCEL switch: Pressed
Approximately 1V
[Ignition switch: ON]
●
RESUME/ACCELERATE switch: Pressed
Approximately 3V
[Ignition switch: ON]
●
SET/COAST switch: Pressed
Approximately 2V
BBIA0539E
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