Nissan Frontier D40. Manual - part 641
HEADLAMP (HI) CIRCUIT
EXL-37
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
M
A
B
EXL
N
O
P
HEADLAMP (HI) CIRCUIT
Description
INFOID:0000000005561521
The IPDM E/R (intelligent power distribution module engine room) controls the headlamp LH high and head-
lamp RH high relays based on inputs from the BCM via the CAN communication lines. When the headlamp LH
high and headlamp RH high relays are energized, power flows through fuses 34 and 35, located in the IPDM
E/R. Power then flows to the front combination lamps to the headlamp high beam.
Component Function Check
INFOID:0000000005274736
1.
CHECK HEADLAMP (HI) OPERATION
WITHOUT CONSULT-III
1.
Start IPDM E/R auto active test. Refer to
PCS-13, "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-III
1.
Select "EXTERNAL LAMPS" of IPDM E/R active test item.
2.
With the test item operating, check that the headlamp switches to high beam.
Does the headlamp switch to high beam?
YES
>> Headlamp (HI) circuit is normal.
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000005274737
Regarding Wiring Diagram information, refer to
(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
HI
: Headlamp switches to the high beam.
OFF
: Headlamp OFF
Unit
Location
Fuse No.
Capacity
Headlamp HI (LH)
IPDM E/R
35
10A
Headlamp HI (RH)
IPDM E/R
34
10A