2006 INFINITI M35 Factory Service Manual

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INFINITI M35 2006 Factory Service Manual EC-554
[VQ35DE]
DTC P1553 BATTERY CURRENT SENSOR
Revision: 2006 January2006 M35/M45
6. CHECK BATTERY CURRENT SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between battery

Page 2098 of 5621

INFINITI M35 2006 Factory Service Manual DTC P1554 BATTERY CURRENT SENSOR
EC-555
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DTC P1554 BATTERY CURRENT SENSORPFP:294G0
Component DescriptionNBS0054C
The power genera

DTC P1554 BATTERY CURRENT SENSOR
EC-555
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DTC P1554 BATTERY CURRENT SENSORPFP:294G0
Component DescriptionNBS0054C
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 (1) is installed to the battery cable at the negative termi-
nal. The sensor measures the charging/discharging current of the
battery. 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 ModeNBS0054D
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 LogicNBS0054E
The MIL will not light up for this diagnosis.
NOTE:
If DTC P1554 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643. Refer to
EC-499, "
DTC P0643 SENSOR POWER SUPPLY" .
PBIB2685E
MONITOR ITEM CONDITION SPECIFICATION
BAT CUR SEN
Engine speed: Idle
Battery: Fully charged*
Selector lever: P or N
Air conditioner switch: OFF
No loadApprox. 2,600 - 3,500mV
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1554
1554Battery current sensor perfor-
manceThe 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

Page 2099 of 5621

INFINITI M35 2006 Factory Service Manual EC-556
[VQ35DE]
DTC P1554 BATTERY CURRENT SENSOR
Revision: 2006 January2006 M35/M45
Overall Function CheckNBS0054F
Use this procedure to check the overall function of the battery current sensor circui

Page 2100 of 5621

INFINITI M35 2006 Factory Service Manual DTC P1554 BATTERY CURRENT SENSOR
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Revision: 2006 January2006 M35/M45
Wiring DiagramNBS0054G
TBWT0995E

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INFINITI M35 2006 Factory Service Manual EC-558
[VQ35DE]
DTC P1554 BATTERY CURRENT SENSOR
Revision: 2006 January2006 M35/M45
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM g

Page 2102 of 5621

INFINITI M35 2006 Factory Service Manual DTC P1554 BATTERY CURRENT SENSOR
EC-559
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Revision: 2006 January2006 M35/M45
2. CHECK BATTERY CURRENT SENSOR POWER SUPPLY CIRCUIT
1. Disconnect battery current sensor

Page 2103 of 5621

INFINITI M35 2006 Factory Service Manual EC-560
[VQ35DE]
DTC P1554 BATTERY CURRENT SENSOR
Revision: 2006 January2006 M35/M45
6. CHECK BATTERY CURRENT SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between battery

Page 2104 of 5621

INFINITI M35 2006 Factory Service Manual DTC P1564 ICC STEERING SWITCH
EC-561
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Revision: 2006 January2006 M35/M45
DTC P1564 ICC STEERING SWITCHPFP:25551
Component DescriptionNBS0054J
ICC steering switch has

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