Infiniti QX56 (Z62). Manual — part 232
CHG
POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM OPERATION
INSPECTION
CHG-17
< BASIC INSPECTION >
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM OPER-
ATION INSPECTION
Inspection Procedure
INFOID:0000000006274867
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
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.
shift the selector lever to “P” or “N” position and turn off all of the electric loads and A/C, etc.
3.
Select “ALTERNATOR DUTY” at “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-12, "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 ALTERNATOR AND IPDM E/R
1.
Turn ignition switch OFF.
2.
Disconnect alternator harness connector and IPDM E/R harness connector.
3.
Check continuity between alternator harness connector and IPDM E/R harness connector.
4.
Check continuity between alternator harness connector and ground.
“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 %
Alternator
IPDM E/R
Continuity
Connector
Terminal
Connector
Terminal
E205
5
E13
33
Existed
CHG-18
< BASIC INSPECTION >
POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM OPERATION
INSPECTION
Is the inspection result normal?
YES
>> Replace IPDM E/R.
NO
>> Repair harness or connector between IPDM E/R and alternator.
Alternator harness connector
Ground
Continuity
Connector
Terminal
E205
5
Not existed
CHG
B TERMINAL CIRCUIT
CHG-19
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
DTC/CIRCUIT DIAGNOSIS
B TERMINAL CIRCUIT
Description
INFOID:0000000006274868
“B” terminal circuit supplies power to charge the battery and to operate the vehicle’s electrical system.
Diagnosis Procedure
INFOID:0000000006274869
1.
CHECK “B” TERMINAL CONNECTION
1.
Turn ignition switch OFF.
2.
Check that “B” terminal is clean and tight.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair “B” terminal connection. Confirm repair by performing complete Starting/Charging system
test. Refer to Technical Service Bulletin.
2.
CHECK “B” TERMINAL CIRCUIT
Check voltage between alternator “B” terminal and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Check harness for open between alternator and fusible link.
3.
CHECK “B” TERMINAL CONNECTION (VOLTAGE DROP TEST)
1.
Start engine, then engine running at idle and warm.
2.
Check voltage between battery positive terminal and alternator “B” terminal.
Is the inspection result normal?
YES
>> “B” terminal circuit is normal. Refer to
NO
>> Check harness between battery and alternator for poor continuity.
(+)
(–)
Voltage
Alternator “B” terminal
E203
1
Ground
Battery voltage
(+)
(–)
Voltage (V)
(Approx.)
Alternator “B” terminal
Terminal
Battery positive terminal
E203
1
Less than 0.2
CHG-20
< DTC/CIRCUIT DIAGNOSIS >
L TERMINAL CIRCUIT (OPEN)
L TERMINAL CIRCUIT (OPEN)
Description
INFOID:0000000006274870
The “L” terminal circuit controls the charge warning lamp. The charge warning lamp illuminates when the igni-
tion switch is set to ON or START. When the alternator is providing sufficient voltage with the engine running,
the charge warning lamp will go off. If the charge warning lamp illuminates with the engine running, a malfunc-
tion is indicated.
Diagnosis Procedure
INFOID:0000000006274871
1.
CHECK “L” TERMINAL CONNECTION
1.
Turn ignition switch OFF.
2.
Check that “L” terminal is clean and tight.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair “L” terminal connection. Confirm repair by performing complete Starting/Charging system
test. Refer to Technical Service Bulletin.
2.
CHECK “L” TERMINAL CIRCUIT (OPEN)
1.
Disconnect alternator connector.
2.
Apply ground to alternator harness connector terminal.
3.
Check condition of the charge warning lamp with the ignition switch in the ON position.
Does it illuminate?
YES
>> “L” terminal circuit is normal. Refer to
.
NO
>> GO TO 3.
3.
CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
1.
Disconnect the battery cable from the negative terminal.
2.
Disconnect the combination meter connector.
3.
Check continuity between alternator harness connector and combination meter harness connector.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair the harness or connector.
4.
CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
Check continuity between combination meter harness connector and fuse block (J/B).
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair the harness or connector.
5.
CHECK POWER SUPPLY CIRCUIT
(+)
(–)
Condition
Charge warning lamp
Alternator
Connector
Terminal
E205
3
Ground
Ignition switch ON
ON
Alternator
Combination meter
Continuity
Connector
Terminal
Connector
Terminal
E205
3
M34
25
Existed
Combination meter
Fuse block (J/B)
Continuity
Connector
Terminal
Connector
Terminal
M34
2
M1
2A
Existed
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст