Infiniti I35 (A33). Manual - part 365
Symptom
Possible cause
Repair order
LH low beam does not operate, but
LH high beam operates.
1. Headlamp LH relay
2. Open in the LH low beam circuit
3. LH low beam ground circuit
4. Xenon bulb
5. HID control unit
1. Check headlamp LH relay.
2. Check harness between headlamp LH relay terminal
7 and headlamp LH for open circuit.
3. Check harness between headlamp LH 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.)
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 fuse and fusible
link 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 headlamp RH and lighting
switch.
6. Check lighting switch.
7. Check the following.
a. Harness between daytime light control unit and light-
ing 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 RH relay
2. Open in the RH low beam cir-
cuit
3. RH low beam ground circuit
4. Xenon bulb
5. HID control unit
1. Check headlamp RH relay.
2. Check harness between headlamp RH relay termi-
nal 7 and headlamp RH for open circuit.
3. Check harness between headlamp RH 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.)
High beam indicator does not work. 1. Bulb
2. Open in high beam indicator
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
Exterior lamp 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
door switch LH or RH for open or short circuit
b. Door switch LH or RH ground circuit
c. Door switch LH or RH
2. Check smart entrance control unit. (EL-368)
Daytime light control does not
operate properly.
1. Bulb
2. Fuse check
3. Parking brake switch
4. Parking brake switch circuit
5. Daytime light 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-62)
GI
MA
EM
LC
EC
FE
AT
AX
SU
BR
ST
RS
BT
HA
SC
IDX
HEADLAMP (FOR CANADA) — DAYTIME LIGHT SYSTEM —
Trouble Diagnoses (Cont’d)
EL-61