2014 NISSAN TEANA sensor

CHG
COMPONENT PARTSCHG-5
< SYSTEM DESCRIPTION >
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SYSTEM DESCRIPTION
COMPONENT PARTS
QR25DE
QR25DE : Component Parts LocationINFOID:0000000009460646
AWMIA1297GB
1. Generator 2. IPDM E/R 3. ECM
4. Battery current sensor 5. Charge warning lamp indicator
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

CHG-6
< SYSTEM DESCRIPTION >
COMPONENT PARTS
QR25DE : Component Description
INFOID:0000000009460647
VQ35DE
Component part Description
Generator (IC regulator) The IC regulator controls the power generation voltage by the tar-
get power generation voltage based on the received PWM com-
mand signal.
When there is no PWM command signal, the generator performs
the normal power generation according to the characteristic of the
IC regulator.
ECM The battery current sensor detects the charging/discharging cur-
rent of the battery. The ECM judges the battery condition based on
this signal.
The ECM judges whether to request more output via the power
generation voltage variable control according to the battery condi-
tion.
When performing the power generation voltage variable control,
the ECM calculates the target power generation voltage according
to the battery condition and sends the calculated value as the pow-
er generation command value to the IPDM E/R.
IPDM E/R The IPDM E/R converts the received power generation command
value into a pulse width modulated (PWM) command signal and
sends it to the IC regulator.
Combination meter (c harge warning lamp) The IC regulator warning function activates to illuminate the
charge warning lamp if any of the following symptoms occur while
generator is operating:
·Excessive voltage is produced.
·No voltage is produced.
Battery current sensor The battery current sensor is located on the negative battery cable
terminal. The battery current sensor detects the charging/dis-
charging current of the battery and sends a voltage signal to the
ECM according to the current value detected.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

CHG
COMPONENT PARTSCHG-7
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VQ35DE : Component Parts LocationINFOID:0000000009460648
AWMIA1304ZZ
1. Generator 2. IPDM E/R 3. ECM
4. Battery current sensor 5. Charge warning lamp indicator
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

CHG-8
< SYSTEM DESCRIPTION >
COMPONENT PARTS
VQ35DE : Component Description
INFOID:0000000009460649
Component part Description
Generator (IC regulator) The IC regulator controls the power generation voltage by the tar-
get power generation voltage based on the received PWM com-
mand signal.
When there is no PWM command signal, the generator performs
the normal power generation according to the characteristic of the
IC regulator.
ECM The battery current sensor detects the charging/discharging cur-
rent of the battery. The ECM judges the battery condition based on
this signal.
The ECM judges whether to request more output via the power
generation voltage variable control according to the battery condi-
tion.
When performing the power generation voltage variable control,
the ECM calculates the target power generation voltage according
to the battery condition and sends the calculated value as the pow-
er generation command value to the IPDM E/R.
IPDM E/R The IPDM E/R converts the received power generation command
value into a pulse width modulated (PWM) command signal and
sends it to the IC regulator.
Combination meter (c harge warning lamp) The IC regulator warning function activates to illuminate the
charge warning lamp if any of the following symptoms occur while
generator is operating:
·Excessive voltage is produced.
·No voltage is produced.
Battery current sensor The battery current sensor is located on the negative battery cable
terminal. The battery current sensor detects the charging/dis-
charging current of the battery and sends a voltage signal to the
ECM according to the current value detected.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

CHG-10
< SYSTEM DESCRIPTION >
POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM
POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM
System DiagramINFOID:0000000009460653
System DescriptionINFOID:0000000009460654
Power generation variable voltage control system has been adopted. By varying the voltage to the generator,
engine load due to power generation of the generator is reduced and fuel consumption is decreased.
NOTE:
When any malfunction is detected in the power generat ion variable voltage control system, power generation
is performed according to the characteristic of the IC regulator in the generator.
Component DescriptionINFOID:0000000009460655
ALMIA0566GB
Component part Description
Generator (IC regulator) The IC regulator controls the power generation voltage by the tar-
get power generation voltage based on the received PWM com-
mand signal.
When there is no PWM command signal, the generator performs
the normal power generation according to the characteristic of the
IC regulator.
ECM The battery current sensor detects the charging/discharging cur-
rent of the battery. The ECM judges the battery condition based on
this signal.
The ECM judges whether to request more output via the power
generation voltage variable control according to the battery condi-
tion.
When performing the power generation voltage variable control,
the ECM calculates the target power generation voltage according
to the battery condition and sends the calculated value as the pow-
er generation command value to the IPDM E/R.
IPDM E/R The IPDM E/R converts the received power generation command
value into a pulse width modulated (PWM) command signal and
sends it to the IC regulator.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

CHG
POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM
CHG-11
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Combination meter (c
harge warning lamp) The IC regulator warning function activates to illuminate the
charge warning lamp if any of the following symptoms occur while
generator is operating:
• Excessive voltage is produced.
• No voltage is produced.
Battery current sensor The battery current sensor is located on the battery cable terminal.
The battery current sensor detects the charging/discharging cur-
rent of the battery and sends a voltage signal to the ECM accord-
ing to the current value detected.
Component part Description
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

CHG
DIAGNOSIS AND REPAIR WORKFLOWCHG-19
< BASIC INSPECTION >
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>> GO TO 2.
2.STOP POWER GENERATION VOLT
AGE VARIABLE CONTROL SYSTEM
Stop the operation of the power generation voltage variabl e control in either of the following procedures.
• After selecting “ENGINE” using CONSULT, set the DUTY value of “ALTERNATOR DUTY” to 0 % by select- ing “ALTERNATOR DUTY” of “Active Test”. Continue “Active Test” until the end of inspection. (When the
DUTY value is 0 or 100 %, the normal power generation is performed according to the characteristic of the
IC regulator of the generator.)
• Turn the ignition switch OFF, and disconnect the batte ry current sensor connector. [However, DTC (P1550–
P1554) of the engine might remain. After finishing the inspection, connect the battery current sensor connec-
tor and erase the self diagnosis results history of the engine using CONSULT.]
>> GO TO 3.
3.DIAGNOSIS WITH EXP-800 NI OR GR8-1200 NI
Perform the charging system test using Multitasking battery and electrical diagnostic station GR8-1200 NI or
Battery and electrical diagnostic analyzer EXP-800 NI. Re fer to the applicable Instruction Manual for proper
testing procedures.
Test result
NO PROBLEMS>>Charging system is normal and will also show “DIODE RIPPLE” test result.
NO VOLTAGE>>GO TO 4.
LOW VOLTAGE>>GO TO 12.
HIGH VOLTAGE>>GO TO 14.
EXCESSIVE RIPPLE, OPEN PHASE, OPEN DIODE or SHORTED DIODE>>Replace the generator. Refer
to CHG-32, "Removal and Installation"
. Perform “DIODE RIPPLE” test again using Multitasking
battery and electrical diagnostic station GR8-1200 NI or Battery and electrical diagnostic analyzer
EXP-800 NI to confirm repair.
4.INSPECTION WITH CHARGE WARNING LAMP (IGNITION SWITCH IS ON)
Turn the ignition switch ON.
Does the charge warning lamp illuminate?
YES >> GO TO 6.
NO >> GO TO 5.
5.“L” TERMINAL CIRCUIT (OPEN) INSPECTION
Check “L” terminal circuit (open). Refer to CHG-27, "Diagnosis Procedure"
.
Is the
“L” terminal circuit normal?
YES >> Replace generator. Refer to CHG-32, "Removal and Installation".
NO >> Repair as needed.
6.INSPECTION WITH CHARGE WARNING LAMP (IDLING)
Start the engine and run it at idle.
Does the charge warning lamp turn OFF?
YES >> GO TO 9.
NO >> GO TO 7.
7.“L” TERMINAL CIRCUIT (SHORT) INSPECTION
Check “L” terminal circuit (short). Refer to CHG-29, "Diagnosis Procedure"
.
Is the
“L” terminal circuit normal?
YES >> GO TO 8.
NO >> Repair as needed.
8.“S” TERMINAL CIRCUIT INSPECTION
Check “S” terminal circuit. Refer to CHG-30, "Diagnosis Procedure"
.
Is the
“S” terminal circuit normal?
YES >> GO TO 10.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

CHG
DIAGNOSIS AND REPAIR WORKFLOWCHG-21
< BASIC INSPECTION >
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• Use fully charged battery.
DETAILED FLOW
1.PRELIMINARY INSPECTION
Perform the preliminary inspection. Refer to CHG-23, "Diagnosis Procedure"
.
>> GO TO 2.
2.STOP POWER GENERATION VOLT AGE VARIABLE CONTROL SYSTEM
Stop the operation of the power generation voltage variabl e control in either of the following procedures:
• After selecting “ENGINE” using CONSULT, set the DUTY value of “ALTERNATOR DUTY” to 0 % by select- ing “ALTERNATOR DUTY” with “Active Test”. Continue “Active Test” until the end of inspection. (When the
DUTY value is 0 or 100 %, the normal power generation is performed according to the characteristic of the
IC regulator of the generator.)
• Turn the ignition switch OFF, and disconnect the batte ry current sensor connector. [However, DTC (P1550 -
P1554) of the engine might remain. After finishing the inspection, connect the battery current sensor connec-
tor and erase the self-diagnostic results history of the engine using CONSULT.]
>> GO TO 3.
3.INSPECTION WITH CHARGE WARNING LA MP (IGNITION SWITCH IS TURNED ON)
When ignition switch is turned ON.
Does the charge warning lamp illuminate?
ALMIA0577GB
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM