Nissan Altima L32. Instruction — part 181
CHG-8
< COMPONENT DIAGNOSIS >
POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM OPERATION
INSPECTION
POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM OPER-
ATION INSPECTION
Inspection Procedure
INFOID:0000000004205654
CAUTION:
When performing this inspection, always use a charged battery that has completed the battery inspec-
tion. (When the charging rate of the battery is low, the response speed of the voltage change will
become slow. This can cause an incorrect inspection.)
1.
CHECK ECM (CONSULT-III)
Perform ECM self-diagnosis with CONSULT-III. Refer to
EC-125, "CONSULT-III Function"
(QR25DE for Cali-
EC-654, "CONSULT-III Function"
(QR25DE except for California) or
EC-1155, "CONSULT-III Function"
(VQ35DE).
Self-diagnostic results content
No malfunction detected>> GO TO 2
Malfunction detected>> Check applicable parts, and repair or replace corresponding parts.
2.
CHECK OPERATION OF POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM
1. Connect CONSULT-III and start the engine.
2. The selector lever is in “P” or “N” position and all of the electric loads and A/C, etc. are turned OFF.
3. Select “ALTERNATOR DUTY” in “Active Test” of “ENGINE”, and then check the value of “BATTERY
VOLT” monitor when DUTY value of “ALTERNATOR DUTY” is set to 40.0 %.
4. Check the value of “BATTERY VOLT” monitor when DUTY value of “ALTERNATOR DUTY” is set to
80.0%.
Is the measurement value within the specification?
YES
>> Inspection End.
NO
>> GO TO 3
3.
CHECK IPDM E/R (CONSULT-III)
Perform IPDM E/R self-diagnosis with CONSULT-III. Refer to
PCS-17, "CONSULT - III Function (IPDM E/R)"
.
Self-diagnostic results content
No malfunction detected>> GO TO 4
Malfunction detected>> Check applicable parts, and repair or replace corresponding parts.
4.
CHECK HARNESS BETWEEN GENERATOR AND IPDM E/R
1. Turn ignition switch OFF.
2. Disconnect generator connector and IPDM E/R connector.
“BATTERY VOLT”
2 seconds after setting the
DUTY value of “ALTERNA-
TOR DUTY” to 40.0 %
: 12 - 13.6 V
“BATTERY VOLT”
20 seconds after setting
the DUTY value of “ALTER-
NATOR DUTY” to 80.0 %
: +0.5 V or more against
the value of “BATTERY
VOLT” monitor when
DUTY value is 40.0 %
CHG
POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM OPERATION
INSPECTION
CHG-9
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
3. Check continuity between generator harness connector F7 (A)
terminal 4 and IPDM E/R harness connector F10 (B) terminal
76.
4. Check continuity between generator harness connector F7 (A)
terminal 4 and ground.
Is the inspection result normal?
YES
>> Replace IPDM E/R. Refer to
PCS-48, "Removal and Installation"
.
NO
>> Repair harness or connector between IPDM E/R and generator.
A
B
Continuity
Connector
Terminal
Connector
Terminal
F7
4
F10
76
Yes
A
—
Continuity
Connector
Terminal
F7
4
Ground
No
ALMIA0343ZZ
CHG-10
< COMPONENT DIAGNOSIS >
B TERMINAL CIRCUIT
B TERMINAL CIRCUIT
Description
INFOID:0000000004205655
The terminal “1” (B) circuit supplies power to charge the battery and operate the vehicles electrical system.
Diagnosis Procedure
INFOID:0000000004205656
1.
CHECK TERMINAL “1” CONNECTION
1. Turn ignition switch OFF.
2. Check if terminal “1” is clean and tight.
Is the inspection result normal?
YES
>> GO TO 2
NO
>> Repair terminal “1” connection. Confirm repair by performing complete Starting/Charging system
test. Refer to Technical Service Bulletin.
2.
CHECK TERMINAL “1” CIRCUIT
Check voltage between generator connector F6 terminal 1 and
ground.
Is the inspection result normal?
YES
>> GO TO 3
NO
>> Check harness for open between generator and fusible
link.
3.
CHECK TERMINAL “1” CONNECTION (VOLTAGE DROP TEST)
1. Start engine, then engine running at idle and warm.
2. Check voltage between battery positive terminal and generator
connector F6 terminal 1.
Is the inspection result normal?
YES
>> Terminal “1” circuit is normal. Refer to
NO
>> Check harness between battery and generator for high
resistance.
1 - ground
Battery voltage
ALMIA0344ZZ
1 - B+
Less than 0.2V
ALMIA0345ZZ
CHG
L TERMINAL CIRCUIT
CHG-11
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
L TERMINAL CIRCUIT
Description
INFOID:0000000004205657
The terminal “2” (L) circuit controls the charge warning lamp. The charge warning lamp illuminates when the
ignition switch is set to ON or START. When the generator is providing sufficient voltage with the engine run-
ning, the charge warning lamp will go off. If the charge warning lamp illuminates with the engine running, a
malfunction is indicated.
Diagnosis Procedure
INFOID:0000000004205658
1.
CHECK CHARGE WARNING LAMP CIRCUIT CONNECTION
Check to see if generator connector F7 terminal 2 is clean and tight.
Is the connection secure?
YES
>> GO TO 2
NO
>> Repair the connection. Confirm repair by performing complete Starting/Charging system test.
Refer to Technical Service Bulletin.
2.
CHECK CHARGE WARNING LAMP CIRCUIT
1. Disconnect generator connector F7.
2. Apply ground to generator harness connector F7 terminal 2 with
the ignition switch in the ON position.
Does it illuminate?
YES
>> Check generator function. Refer to
NO
>> GO TO 3
3.
CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1. Turn ignition switch OFF.
2. Disconnect the generator connector F7.
3. Disconnect the combination meter connector M24.
4. Check continuity between generator harness connector F7 (A)
terminal 2 and combination meter harness connector M24 (B)
terminal 25.
Is continuity present?
YES
>> Replace the combination meter. Refer to
MWI-176, "Removal and Installation"
.
NO
>> Repair the harness or connector.
Charge lamp should illuminate
ALMIA0346ZZ
A
B
Continuity
Connector
Terminal
Connector
Terminal
F7
2
M24
25
Yes
AWMIA0452ZZ
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