Nissan Maxima. Manual — part 573
EXL-34
< DTC/CIRCUIT DIAGNOSIS >
[XENON TYPE]
POWER SUPPLY AND GROUND CIRCUIT
DTC/CIRCUIT DIAGNOSIS
POWER SUPPLY AND GROUND CIRCUIT
BCM (BODY CONTROL MODULE)
BCM (BODY CONTROL MODULE) : Diagnosis Procedure
INFOID:0000000010070067
Regarding Wiring Diagram information, refer to
.
1.
CHECK FUSE AND FUSIBLE LINK
Check if the following BCM fuses or fusible link are blown.
Is the fuse or fusible link blown?
YES
>> Replace the blown fuse or fusible link after repairing the affected circuit.
NO
>> GO TO 2
2.
CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM.
3. Check voltage between BCM harness connector and ground.
Is the measurement normal?
YES
>> GO TO 3
NO
>> Repair or replace harness.
3.
CHECK GROUND CIRCUIT
Check continuity between BCM harness connector and ground.
Does continuity exist?
YES
>> Inspection End.
NO
>> Repair or replace harness.
BCM (BODY CONTROL MODULE) : Special Repair Requirement
INFOID:0000000010070068
1.
REQUIRED WORK WHEN REPLACING BCM
Terminal No.
Signal name
Fuse and fusible link No.
1
Battery power supply
H
11
10
24
7
Terminals
Voltage
(Approx.)
(+)
(
−)
BCM
Ground
Connector
Terminal
M16
1
Battery voltage
M17
11
M18
24
BCM
Ground
Continuity
Connector
Terminal
M17
13
Yes
POWER SUPPLY AND GROUND CIRCUIT
EXL-35
< DTC/CIRCUIT DIAGNOSIS >
[XENON TYPE]
C
D
E
F
G
H
I
J
K
M
A
B
EXL
N
O
P
Initialize control unit. Refer to
BCS-5, "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT (BCM) :
>> Work End.
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM) : Di-
agnosis Procedure
INFOID:0000000010070069
Regarding Wiring Diagram information, refer to
.
1.
CHECK FUSES AND FUSIBLE LINK
Check that the following IPDM E/R fuses or fusible link are not blown.
Is the fuse blown?
YES
>> Replace the blown fuse or fusible link after repairing the affected circuit.
NO
>> GO TO 2
2.
CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connectors.
3. Check voltage between IPDM E/R harness connector and ground.
Is the measurement value normal?
YES
>> GO TO 3
NO
>> Repair harness or connector.
3.
CHECK GROUND CIRCUIT
Check continuity between IPDM E/R harness connectors and
ground.
Does continuity exist?
YES
>> Inspection End.
NO
>> Repair harness or connector.
Terminal No.
Signal name
Fuses and fusible link No.
1
Battery power supply
B
2
A, D
36
A, E, L
Terminals
Voltage (V)
(Approx.)
(+)
(
−)
IPDM E/R
Connector
Terminal
Ground
E16
1
Battery voltage
2
E18
36
IPDM E/R
Ground
Continuity
Connector
Terminal
A: E18
12
Yes
B: E17
41
ALCIA0034ZZ
EXL-36
< DTC/CIRCUIT DIAGNOSIS >
[XENON TYPE]
HEADLAMP (HI) CIRCUIT
HEADLAMP (HI) CIRCUIT
Description
INFOID:0000000010050215
The IPDM E/R (intelligent power distribution module engine room) controls the headlamp high relay based on
inputs from the BCM over the CAN communication lines. When the headlamp high relay is energized, power
flows through fuses 48 and 49, located in the IPDM E/R. Power then flows to the front combination lamps to
the headlamp high beam.
Component Function Check
INFOID:0000000010050216
1.
CHECK HEADLAMP (HI) OPERATION
WITHOUT CONSULT
1. Start IPDM E/R auto active test. Refer to
PCS-11, "Diagnosis Description"
2. Check that the headlamp switches to the high beam.
NOTE:
HI/LO is repeated 1 second each when using the IPDM E/R auto active test.
CONSULT
1. Select “EXTERNAL LAMPS" of IPDM E/R active test item.
2. While operating the test item, check that the headlamp switches to the high beam.
Does the headlamp switch to the high beam?
YES
>> Headlamp (HI) circuit is normal.
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000010050217
Regarding Wiring Diagram information, refer to
(Without DTRL),
(With DTRL).
1.
CHECK HEADLAMP (HI) FUSES
1. Turn the ignition switch OFF.
2. Check that the following fuses are not open.
Is the fuse open?
YES
>> Repair the harness and replace the fuse.
NO
>> GO TO 2.
2.
CHECK HEADLAMP (HI) OUTPUT VOLTAGE
CONSULT ACTIVE TEST
1. Turn the ignition switch OFF.
2. Disconnect the front combination lamp connector.
3. Turn the ignition switch ON.
4. Select "EXTERNAL LAMPS" of IPDM E/R active test item.
HI
: Headlamp switches to the high beam.
OFF
: Headlamp OFF
Unit
Location
Fuse No.
Capacity
Headlamp HI (LH)
IPDM E/R
48
10A
Headlamp HI (RH)
IPDM E/R
49
10A
HEADLAMP (HI) CIRCUIT
EXL-37
< DTC/CIRCUIT DIAGNOSIS >
[XENON TYPE]
C
D
E
F
G
H
I
J
K
M
A
B
EXL
N
O
P
5. With EXTERNAL LAMP ON, check the voltage between the
combination lamp connector and ground.
Is battery voltage present?
YES
>> GO TO 4.
NO
>> GO TO 3.
3.
CHECK HEADLAMP (HI) CIRCUIT FOR OPEN
1. Turn the ignition switch OFF.
2. Disconnect IPDM E/R connector E200.
3. Check continuity between the IPDM E/R harness connector (A)
and the front combination lamp harness connector (B).
Does continuity exist?
YES
>> Replace IPDM E/R. Refer to
NO
>> Repair the harnesses or connectors.
4.
CHECK FRONT COMBINATION LAMP (HI) GROUND CIRCUIT
Check continuity between the front combination lamp harness con-
nector terminal and ground.
Does continuity exist?
YES
>> Inspect the headlamp bulb.
NO (Except RH with DTRL)>>Repair the harness.
NO (RH with DTRL)>>GO TO 5.
5.
CHECK CONTINUITY BETWEEN FRONT COMBINATION LAMP RH (HI) AND DAYTIME LIGHT RELAY
1. Disconnect daytime light relay connector.
2. Check continuity between front combination lamp RH harness connector and daytime light relay harness
connector.
Does continuity exist?
YES
>> GO TO 6.
NO
>> Repair the harness or connector.
(+)
(
−)
Voltage
Connector
Terminal
RH
E222 (without DTRL)
3
Ground
Battery voltage
E233 (with DTRL)
LH
E213
AWLIA1641ZZ
A
B
Continuity
Connector
Terminal
Connector
Terminal
RH
E200
89
E222 (without DTRL)
3
Yes
E233 (with DTRL)
LH
90
E213
AWLIA1642ZZ
Connector
Terminal
—
Continuity
RH
E222 (without DTRL)
4
Ground
Yes
E233 (with DTRL)
LH
E213
AWLIA1643ZZ
Front combination lamp RH
Daytime light relay
Continuity
Connector
Terminal
Connector
Terminal
E233
4
E228
3
Yes
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