Nissan Pathfinder. Manual — part 606
EXL-112
< DTC/CIRCUIT DIAGNOSIS >
DAYTIME LIGHT RELAY CIRCUIT
DAYTIME LIGHT RELAY CIRCUIT
Description
INFOID:0000000009175371
The BCM sends a daytime light request to the IPDM E/R via the CAN communication lines. The power flows
through fuse 43 located in IPDM E/R to the daytime light relay coil. When the IPDM E/R operates the daytime
light relay, power is sent to the daytime lamps.
Diagnosis Procedure
INFOID:0000000009175372
Regarding Wiring Diagram information, refer to
1.
CHECK DAYTIME LIGHT RELAY VOLTAGE SUPPLY
1. Turn the ignition switch OFF.
2. Disconnect the daytime light relay harness connector E4.
3. Turn the ignition switch ON.
4. Check the voltage between the following daytime light relay harness connector E4 terminals and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> GO TO 2.
2.
CHECK DAYTIME LIGHT RELAY CIRCUIT
1. Turn the ignition switch OFF.
2. Disconnect IPDM E/R harness connector E121.
3. Check continuity between the IPDM E/R harness connector E121 and the daytime light relay harness
connector E4.
4. Check continuity between the IPDM E/R harness connector E121 and ground.
Is the inspection result normal?
YES
>> Replace IPDM E/R. Refer to
PCS-32, "Removal and Installation"
NO
>> Repair or replace the harness or connector.
3.
CHECK DAYTIME LAMP RELAY COIL CIRCUIT
1. Check continuity between the IPDM E/R harness connector E218 and daytime light relay harness con-
nector E4.
(+)
(
−)
Voltage
Connector
Terminal
E4
2
Ground
Battery voltage
5
7
Daytime light relay
IPDM E/R
Continuity
Connector
Terminal
Connector
Terminal
E4
2
E121
14
Yes
5
7
Connector
Terminal
(—)
Continuity
E121
14
Ground
No
DAYTIME LIGHT RELAY CIRCUIT
EXL-113
< DTC/CIRCUIT DIAGNOSIS >
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2. Check continuity between the IPDM E/R harness connector E218 and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace the harness or connector.
4.
CHECK DAYTIME LIGHT RELAY
Check the daytime light relay. Refer to
EXL-113, "Component Inspection"
.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Replace relay.
5.
CHECK DAYTIME LAMP CIRCUIT FOR OPEN
1. Turn the ignition switch OFF.
2. Disconnect the front fog lamp harness connector E303 or E304 in question.
3. Check continuity between the daytime light relay harness connector E4 and the front fog lamp harness
connector E303 or E304.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair or replace the harness or connector.
6.
CHECK DAYTIME LAMP GOUND CIRCUIT FOR OPEN
1. Disconnect front fog lamp harness connector E303 or E304 in question.
2. Check continuity between the front fog lamp harness connector E303 or E304 terminal 12 and ground.
Is the inspection result normal?
YES
>> Check the daytime light system relay. Refer to
EXL-113, "Component Inspection"
NO
>> Repair or replace the harness or connector.
Component Inspection
INFOID:0000000009175373
1.
CHECK DAYTIME LIGHT RELAY CONTINUITY
1. Turn ignition switch OFF.
2. Remove daytime light relay.
3. Apply 12V direct current between daytime light relay terminals and check continuity.
IPDM E/R
Daytime light relay
Continuity
Connector
Terminal
Connector
Terminal
E218
85
E4
1
Yes
Connector
Terminal
Ground
Continuity
E218
85
No
Front fog lamp
Daytime light relay
Continuity
Connector
Terminal
Connector
Terminal
LH E303
3
E4
3
Yes
RH E304
6
Connector
Terminal
(-)
Continuity
LH E303
4
Ground
Yes
RH E304
EXL-114
< DTC/CIRCUIT DIAGNOSIS >
DAYTIME LIGHT RELAY CIRCUIT
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Replace daytime light relay.
Terminal
Condition
Continuity
3 - 5
6 - 7
12V direct current applied between terminals 1 and 2.
Yes
No current applied.
No
FRONT FOG LAMP CIRCUIT
EXL-115
< DTC/CIRCUIT DIAGNOSIS >
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FRONT FOG LAMP CIRCUIT
Description
INFOID:0000000009175374
The IPDM E/R (intelligent power distribution module engine room) controls the front fog lamp relay based on
inputs from the BCM via the CAN communication lines. When the front fog lamp relay is energized, power
flows from the front fog lamp relay in the IPDM E/R to the front fog lamps.
Component Function Check
INFOID:0000000009175375
1.
CHECK FRONT FOG LAMP OPERATION
WITHOUT CONSULT
1. Activate IPDM E/R auto active test. Refer to
PCS-8, "Diagnosis Description"
2. Check that the front fog lamp is turned ON.
WITH CONSULT
1. Select EXTERNAL LAMPS of IPDM E/R active test item.
2. While operating the test items, Check that the front fog lamp is turned ON.
Is the front fog lamp turned ON?
YES
>> Front fog lamp circuit is normal.
NO
>> Refer to
EXL-115, "Diagnosis Procedure"
Diagnosis Procedure
INFOID:0000000009175376
Regarding Wiring Diagram information, refer to
.
1.
CHECK FRONT FOG LAMP FUSE
1. Turn the ignition switch OFF.
2. Check that the following fuse is not blown.
Is the fuse blown?
YES
>> Replace the blown fuse after repairing the affected circuit.
NO
>> GO TO 2.
2.
CHECK FRONT FOG LAMP OUTPUT VOLTAGE
1. Turn the ignition switch OFF.
2. Disconnect the front fog lamp harness connector E305 or E306.
3. Turn the ignition switch ON.
4. Turn the front fog lamps ON.
5. Check the voltage between the fog lamp harness connector E305 or E306 terminal 1 and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 3.
Fog
: Front fog lamp ON
Off
: Front fog lamp OFF
Unit
Location
Fuse No.
Capacity
Front fog lamp
IPDM E/R
42
15A
(+)
(
−)
Voltage
(Approx.)
Connector
Terminal
LH
E305
1
Ground
Battery voltage
RH
E306
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