Infiniti I30 (A33). Manual - part 353

Symptom

Possible cause

Repair order

LH low beam does not operate, but
LH high beam operates.

1. Headlamp relay LH
2. Open in the LH low beam circuit
3. LH low beam ground circuit
4. Xenon bulb
5. HID control unit
6. Booster

1. Check headlamp relay LH.
2. Check harness between headlamp relay LH terminal

7 and LH headlamp for open circuit.

3. Check harness between LH headlamp and ground.
4. Replace the xenon bulb with other side bulb or new

one. (If headlamps illuminate correctly, replace the
bulb.)

5. Replace the HID control unit with other side control

unit or new one. (If headlamps illuminate correctly,
replace the control unit.)

6. Replace booster as a headlamp assembly.

RH high beam does not operate,
but RH low beam operates.

1. Bulb
2. 15A fuse
3. Headlamp RH relay
4. Headlamp RH relay circuit
5. Open in the RH high beams

circuit

6. Lighting switch
7. Lighting switch circuit
8. Daytime light control unit

1. Check bulb.
2. Check 15A fuse (No. 69, located in fusible link and

fuse box). Verify battery positive voltage is present
at terminal 3 of headlamp RH relay.

3. Check headlamp RH relay.
4. Check harness between headlamp RH relay and

daytime light control unit.

5. Check harness between RH headlamp and lighting

switch.

6. Check lighting switch.
7. Check the following.
a. Harness between daytime control unit and lighting

switch

b. Harness between lighting switch and ground
8. Check daytime light control unit.

RH low beam does not operate,
but RH high beam operates.

1. Headlamp relay RH
2. Open in the RH low beam cir-

cuit

3. RH low beam ground circuit
4. Xenon bulb
5. HID control unit
6. Booster

1. Check headlamp relay RH.
2. Check harness between headlamp relay RH termi-

nal 7 and RH headlamp for open circuit.

3. Check harness between RH headlamp and ground.
4. Replace the xenon bulb with other side bulb or new

one. (If headlamps illuminate correctly, replace the
bulb.)

5. Replace the HID control unit with other side control

unit or new one. (If headlamps illuminate correctly,
replace the control unit.)

6. Replace booster as a headlamp assembly.

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 high beam indicator and lighting

switch

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)

IDX

HEADLAMP (FOR CANADA) — XENON TYPE —

Trouble Diagnoses (Cont’d)

EL-81

Symptom

Possible cause

Repair order

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

NHEL0265S01

Refer to “HEADLAMP (FOR CANADA)”. (EL-69)

Bulb Replacement

NHEL0266

Refer to “HEADLAMP (FOR USA)” (EL-44).

Aiming Adjustment

NHEL0267

Refer to “HEADLAMP (FOR USA)” (EL-45).

HEADLAMP (FOR CANADA) — XENON TYPE —

Trouble Diagnoses (Cont’d)

EL-82

System Description

NHEL0207

The parking, license and tail lamp operation is controlled by the lighting switch which is built into the combi-
nation switch and smart entrance control unit. The battery saver system is controlled by the smart entrance
control unit.
Power is supplied at all times

to tail lamp relay terminals 1 and 3

through 10A fuse (No. 60, located in the fuse and fusible link box), and

to smart entrance control unit terminal 49

through 10A fuse [No. 13, located in the fuse block (J/B)].

When ignition switch is in ON or START position, power is supplied

to smart entrance control unit terminal 27

through 10A fuse [No. 1, located in the fuse block (J/B)].

When the ignition switch is in the ACC or ON position, power is supplied

to smart entrance control unit terminal 26

through 10A fuse [No. 1, located in the fuse block (J/B)].

Ground is supplied to smart entrance control unit terminals 43 and 64.

LIGHTING OPERATION BY LIGHTING SWITCH

NHEL0207S01

When lighting switch is in 1ST (or 2ND) position, ground is supplied

to tail lamp relay terminal 2 from smart entrance control unit terminals 19 and 57

through smart entrance control unit terminals 20 and 58, and

through lighting switch and body grounds E11, E22 and E53.

Tail lamp relay is then energized and the parking, license, side marker and tail lamps illuminate.

LIGHTING OPERATION BY AUTO LIGHT CONTROL SYSTEM

NHEL0207S03

When lighting switch is in AUTO position, ground is supplied

to tail lamp relay terminal 2 from smart entrance control unit terminals 19 and 57

through smart entrance control unit terminals 43 and 64, and

to body grounds E11, E22 and E53.

Tail lamp relay is then energized and the parking, license, side marker and tail lamps illuminate.

BATTERY SAVER CONTROL

NHEL0207S02

Parking, license, side marker and tail lamps will remain on for a short while after the ignition switch is turned
ON (or START) from OFF (or ACC).
Continuity between terminals 19 and 20, and between terminals 57 and 58 of smart entrance control unit will
be disturbed after 45 seconds, then the headlamps will be turned off.
Then the parking, license, side marker and tail lamps are turned off.
The parking, license, side marker and tail lamps are turned off when driver or passenger side door is opened
even if 45 seconds have not passed after the ignition switch is turned from ON (or START) to OFF (or ACC)
positions while parking, license, side marker and tail lamps are illuminated.
When the lighting switch is turned from OFF to 1ST (or 2ND) after the parking, license, side marker and tail
lamps are turned off by the battery saver control, ground is supplied.

to smart entrance control unit terminals 20 and 58 from lighting switch terminal 11, and

to tail lamp relay terminal 2 from smart entrance control unit terminals 19 and 57.

Then the parking, license, side marker and tail lamps illuminate again.

IDX

PARKING, LICENSE AND TAIL LAMPS

System Description

EL-83

Schematic

NHEL0208

MEL404M

PARKING, LICENSE AND TAIL LAMPS

Schematic

EL-84

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