Nissan Maxima. Instruction — part 615
EXL-202
< DTC/CIRCUIT DIAGNOSIS >
[HALOGEN TYPE]
HEADLAMP (HI) CIRCUIT
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
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
HEADLAMP (HI) CIRCUIT
EXL-203
< DTC/CIRCUIT DIAGNOSIS >
[HALOGEN TYPE]
C
D
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F
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A
B
EXL
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6.
CHECK DAYTIME LIGHT RELAY GROUND CIRCUIT
Check continuity between daytime light relay harness connector and ground.
Does continuity exist?
YES
>> GO TO 7.
NO
>> Repair the harness or connector.
7.
CHECK DAYTIME LIGHT RELAY FUSE
1. Turn the ignition switch OFF.
2. Check that the following fuse is not open.
Is the fuse open?
YES
>> Replace the fuse after repairing the affected circuit.
NO
>> GO TO 8.
8.
CHECK DAYTIME LIGHT RELAY CIRCUIT FOR OPEN
1. Disconnect IPDM E/R connector E18 and E201.
2. Check continuity between the IPDM E/R harness connector and the daytime light relay harness connec-
tor.
Does continuity exist?
YES
>> GO TO 9
NO
>> Repair the harnesses or connectors.
9.
CHECK DAYTIME LIGHT RELAY
Check daytime light relay. Refer to
EXL-203, "Component Inspection"
.
Is the inspection result normal?
YES
>> Replace IPDM E/R. Refer to
PCS-35, "Removal and Installation"
.
NO
>> Replace daytime light relay.
Component Inspection
INFOID:0000000010051060
1.
CHECK DAYTIME LIGHT RELAY
1. Turn ignition switch OFF.
2. Remove daytime light relay.
3. Check the continuity between daytime light relay terminals under the following conditions.
Daytime light relay
Ground
Continuity
Connector
Terminal
E228
4
Yes
Unit
Location
Fuse No.
Capacity
Daytime light relay
IPDM E/R
54
10A
IPDM E/R
Daytime light relay
Continuity
Connector
Terminal
Connector
Terminal
E18
6
E228
1
Yes
5
E201
105
2
Terminals
Condition
Continuity
3 and 5
12V direct current supply between terminals 1 and 2
Yes
No current supply
No
EXL-204
< DTC/CIRCUIT DIAGNOSIS >
[HALOGEN TYPE]
HEADLAMP (HI) CIRCUIT
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Replace daytime light relay
3 and 4
12V direct current supply between terminals 1 and 2
No
No current supply
Yes
Terminals
Condition
Continuity
HEADLAMP (LO) CIRCUIT
EXL-205
< DTC/CIRCUIT DIAGNOSIS >
[HALOGEN TYPE]
C
D
E
F
G
H
I
J
K
M
A
B
EXL
N
O
P
HEADLAMP (LO) CIRCUIT
Description
INFOID:0000000010051061
The IPDM E/R (intelligent power distribution module engine room) controls the headlamp low relay based on
inputs from the BCM over the CAN communication lines. When the headlamp low relay is energized, power
flows through fuses 51 and 52, located in the IPDM E/R. Power then flows to the front combination lamps to
the headlamp low beam.
Component Function Check
INFOID:0000000010051062
1.
CHECK HEADLAMP (LO) OPERATION
WITHOUT CONSULT
1. Start IPDM E/R auto active test. Refer to
PCS-11, "Diagnosis Description"
2. Check that the headlamp is turned ON.
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 is turned ON.
Is the headlamp turned ON?
YES
>> Headlamp (LO) is normal.
NO
>> Refer to
EXL-205, "Diagnosis Procedure"
.
Diagnosis Procedure
INFOID:0000000010051063
Regarding Wiring Diagram information, refer to
.
1.
CHECK HEADLAMP (LO) 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 (LO) OUTPUT VOLTAGE
CONSULT
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.
LO
: Headlamp ON
OFF
: Headlamp OFF
Unit
Location
Fuse No.
Capacity
Headlamp LO (LH) IPDM E/R
51
15A
Headlamp LO (RH)
IPDM E/R
52
15A
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