Infiniti I30 (A33). Manual — part 350
Symptom
Possible cause
Repair order
RH high beam does not operate,
but RH low beam does operate.
1. Bulb
2. Headlamp RH relay
3. Headlamp RH relay circuit
4. Headlamp RH high beams cir-
cuit
5. Lighting switch
6. Lighting switch circuit
7. Daytime control unit
1. Check bulb.
2. Check headlamp RH relay.
3. Check harness between headlamp RH relay and
daytime light control unit.
4. Check harness between daytime light control unit
and headlamp RH.
5. Check lighting switch.
6. Check harness between daytime light control unit
and lighting switch.
7. Check daytime control unit. (EL-69)
RH low beam does not operate,
but RH high beam does operate.
1. Bulb
2. Headlamp RH relay
3. Headlamp RH relay circuit
4. Open in RH low beams circuit
1. Check bulb.
2. Check headlamp RH relay.
3. Check harness between headlamp RH relay and
headlamp RH.
4. Check harness between headlamp RH terminal 4
and ground.
High beam indicator does not work. 1. Bulb
2. Open in high beam circuit
1. Check bulb in combination meter.
2. Check the following.
a. Harness between daytime light control unit and com-
bination meter for an open circuit
b. Harness between combination meter and combina-
tion switch for an open circuit
Battery saver control does not
operate properly.
1. Door switch LH or RH circuit
2. Smart entrance control unit
1. Check the following.
a. Harness between smart entrance control unit and
LH or RH door switch for open or short circuit
b. LH or RH door switch ground circuit
c. LH or RH door switch
2. Check smart entrance control unit. (EL-406)
Daytime light control does not
operate properly.
1. Bulb
2. Fuse check
3. Parking brake switch
4. Parking brake switch circuit
5. Daytime control unit
1. Check bulb.
2. Check the following.
a. 10A fuse [No. 28, located in fuse block (J/B)]. Verify
battery positive voltage is present at terminal 3 of
daytime light control unit.
b. 10A fuse [No. 21, located in fuse block (J/B)]. Verify
battery positive voltage is present at terminal 2 of
daytime light control unit.
3. Check parking brake switch.
4. Check harness between parking brake switch and
daytime light control unit.
5. Check daytime light control unit. (EL-69)
DAYTIME LIGHT CONTROL UNIT INSPECTION TABLE
NHEL0206S01
Terminal
No.
Wire
color
Item
Condition
Voltage
(Approximate values)
1
BR
Alternator
When turning ignition switch to “ON”
Less than 1V
When engine is running
Battery voltage
When turning ignition switch to “OFF”
Less than 1V
GI
MA
EM
LC
EC
FE
AT
AX
SU
BR
ST
RS
BT
HA
SC
IDX
HEADLAMP (FOR CANADA) — CONVENTIONAL TYPE —
Trouble Diagnoses (Cont’d)
EL-69
Terminal
No.
Wire
color
Item
Condition
Voltage
(Approximate values)
2
BR/W Start signal
When turning ignition switch to “ST”
Battery voltage
When turning ignition switch to “ON” from “ST”
Less than 1V
When turning ignition switch to “OFF”
Less than 1V
3
G
Power source
When turning ignition switch to “ON”
Battery voltage
When turning ignition switch to “ST”
Battery voltage
When turning ignition switch to “OFF”
Less than 1V
4
OR
Power source
When turning ignition switch to “ON”
Battery voltage
When turning ignition switch to “OFF”
Battery voltage
5
P/B
Power source
When turning ignition switch to “ON”
Battery voltage
When turning ignition switch to “OFF”
Battery voltage
6
P
LH hi beam
When lighting switch is turned to the 2ND position with
“HI BEAM” position
Battery voltage
When releasing parking brake with engine running and
turning lighting switch to “OFF” (daytime light operation)
CAUTION:
Block wheels and ensure selector lever is in N or P
position.
Approx. half battery
voltage
7
OR/B
RH hi beam
When lighting switch is turned to the 2ND position with
“HI BEAM” position
Battery voltage
When releasing parking brake with engine running and
turning lighting switch to “OFF” (daytime light operation)
CAUTION:
Block wheels and ensure selector lever is in N or P
position.
Approx. half battery
voltage
9
LG/B
RH hi beam
(ground)
When lighting switch is turned to the 2ND position with
“HI BEAM” position
Less than 1V
When releasing parking brake with engine running and
turning lighting switch to “OFF” (daytime light operation)
CAUTION:
Block wheels and ensure selector lever is in N or P
position.
Approx. half battery
voltage
HEADLAMP (FOR CANADA) — CONVENTIONAL TYPE —
Trouble Diagnoses (Cont’d)
EL-70
Terminal
No.
Wire
color
Item
Condition
Voltage
(Approximate values)
10
Y
LH hi beam
(ground)
When lighting switch is turned to the 2ND position with
“HI BEAM” position
Less than 1V
When releasing parking brake with engine running and
turning lighting switch to “OFF” (daytime light operation)
CAUTION:
Block wheels and ensure selector lever is in N or P
position.
Approx. half battery
voltage
13
14
R/B
L/W
Lighting switch
(Hi beam)
When turning lighting switch to “HI BEAM”
Battery voltage
When turning lighting switch to “FLASH TO PASS”
Battery voltage
16
B
Ground
—
—
17
Y
Parking brake
switch
When parking brake is released
Battery voltage
When parking brake is set
Less than 1.5V
Bulb Replacement
NHEL0022
Refer to “HEADLAMP (FOR USA)” (EL-44).
Aiming Adjustment
NHEL0023
Refer to “HEADLAMP (FOR USA)” (EL-45).
GI
MA
EM
LC
EC
FE
AT
AX
SU
BR
ST
RS
BT
HA
SC
IDX
HEADLAMP (FOR CANADA) — CONVENTIONAL TYPE —
Trouble Diagnoses (Cont’d)
EL-71
Component Parts and Harness Connector
Location
NHEL0261
SEL050Y
System Description
NHEL0262
The headlamp system for Canada vehicles contains a daytime light control unit that activates the high beam
headlamps at approximately half illumination whenever the engine is running. If the parking brake is applied
before the engine is started the daytime lights will not be illuminated. The daytime lights will illuminate once
the parking brake is released. Thereafter, the daytime lights will continue to operate when the parking brake
is applied.
And battery saver system is controlled by the smart entrance control unit.
Power is supplied at all times
I
to headlamp LH relay terminals 1 and 6
I
through 20A fuse (No. 54, located in the fuse and fusible link box), and
I
to headlamp RH relay terminals 1 and 6
I
through 20A fuse (No. 55, located in the fuse and fusible link box), and
I
to smart entrance control unit terminal 49
I
through 10A fuse [No. 13, located in the fuse block (J/B)].
Ground is supplied
I
to daytime light control unit terminal 16 and
I
to smart entrance control unit terminals 43 and 64
When the ignition switch is in the ON or START position, power is also supplied
I
to daytime light control unit terminal 3,
I
through 10A fuse [No. 28, located in the fuse block (J/B)], and
I
to smart entrance control unit terminal 27
I
through 10A fuse [No. 10, located in the fuse block (J/B)].
When the ignition switch is in the ACC or ON position, power is supplied
I
to smart entrance control unit terminal 1
I
through 10A fuse [No. 1, located in the fuse block (J/B)].
When the ignition switch is in the START position, power is supplied
I
to daytime light control unit terminal 2
I
through 10A fuse [No. 21, located in the fuse block (J/B)].
HEADLAMP OPERATION
NHEL0262S01
Power Supply to Low Beam and High Beam
NHEL0262S0101
When lighting switch is in 2ND or PASS position, ground is supplied
HEADLAMP (FOR CANADA) — XENON TYPE —
Component Parts and Harness Connector Location
EL-72
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