Infiniti G20 (P11). Manual — part 323
TEL690B
GI
MA
EM
LC
EC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
IDX
TURN SIGNAL AND HAZARD WARNING LAMPS
Wiring Diagram — TURN — (Cont’d)
EL-69
Trouble Diagnoses
NCEL0033
Symptom
Possible cause
Repair order
Turn signal and hazard warning
lamps do not operate.
1. Hazard switch circuit
2. Combination flasher unit
1. Check the following.
a. Hazard switch and combination flasher unit.
b. Combination flasher unit and ground.
2. Refer to combination flasher unit check.
Turn signal lamps do not operate
but hazard warning lamps operate.
1. 7.5A fuse
2. Turn signal switch circuit
3. Hazard switch
4. Turn signal switch
1. Check 7.5A fuse [No. 12, located in fuse block
(J/B)]. Turn ignition switch ON and verify battery
voltage is present at terminal 2 of hazard switch.
2. Check harness between combination flasher unit
terminal 3 and turn signal switch terminal 1 for open
circuit.
3. Check hazard switch.
4. Check turn signal switch.
Hazard warning lamps do not oper-
ate but turn signal lamps operate.
1. 10A fuse
2. Hazard switch circuit
3. Hazard switch
1. Check 10A fuse [No. 20, located in fuse block (J/B)].
Verify battery positive voltage is present at terminal
3 of hazard switch.
2. Check harness between combination flasher unit
terminal 3 and hazard switch terminal 4.
3. Check hazard switch.
Front turn signal lamp LH or RH
does not operate.
1. Bulb
2. Front turn signal lamp LH or RH
circuit.
1. Check bulb.
2. Check the following.
a. Turn signal switch and front turn signal lamp LH or
RH.
b. Front turn signal lamp LH or RH and ground.
Rear combination lamp LH or RH
does not operate.
1. Bulb
2. Rear combination lamp LH or
RH circuit.
1. Check bulb.
2. Check the following.
a. Hazard switch and rear combination lamp LH or RH.
b. Rear combination lamp LH or RH and ground.
Side turn signal lamp LH or RH
does not operate.
1. Bulb
2. Side turn signal lamp LH or RH
circuit.
1. Check bulb.
2. Check the following.
a. Hazard switch and side turn signal lamp LH or RH.
b. Side turn signal lamp LH or RH and ground.
LH and RH turn indicators do not
operate.
1. LH and RH turn indicators
ground circuit.
1. Check harness between combination meter and
ground.
LH or RH turn indicator does not
operate.
1. Bulb
2. Turn indicator circuit
1. Check bulb in combination meter.
2. Check harness between hazard switch and combi-
nation meter.
SEL122E
Electrical Components Inspection
NCEL0034
COMBINATION FLASHER UNIT CHECK
NCEL0034S01
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Before checking, ensure that bulbs meet specifications.
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Connect a battery and test lamp to the combination flasher
unit, as shown. Combination flasher unit is properly function-
ing if it blinks when power is supplied to the circuit.
TURN SIGNAL AND HAZARD WARNING LAMPS
Trouble Diagnoses
EL-70
System Description
NCEL0035
The illumination lamp operation is controlled by the lighting switch which is built into the combination switch
and headlamp battery saver control unit. The battery saver system is controlled by the headlamp battery saver
control unit and smart entrance control unit.
Power is supplied at all times
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to tail lamp relay terminals 1 and 3
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through 10A fuse (No. 34, located in the fuse and fusible link box), and
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to headlamp battery saver control unit terminal 7
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through 10A fuse [No. 24, located in the fuse block (J/B)].
When ignition switch is in ON or START position, power is supplied
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to headlamp battery saver control unit terminal 1
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through 10A fuse [No. 16, located in the fuse block (J/B)], and
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to headlamp battery saver control unit terminal 10, and
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to smart entrance control unit terminal 33
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through 10A fuse [No. 8, located in the fuse block (J/B)].
Ground is supplied to headlamp battery saver control unit terminals 4 and 11.
LIGHTING OPERATION BY LIGHTING SWITCH
NCEL0035S01
When lighting switch is 1ST (or 2ND) position, ground is supplied
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to tail lamp relay terminal 2 from headlamp battery saver control unit terminals 6 and 14
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through headlamp battery saver control unit terminals 5 and 13, and
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through body grounds E9 and E28.
Tail lamp relay is then energized and illumination lamps illuminate.
The lighting switch must be in the 1ST or 2ND position for illumination.
The illumination control switch that controls the amount of current to the illumination system. As the amount
of current increases, the illumination becomes brighter.
The following chart shows the power and ground connector terminals for the components included in the illu-
mination system.
Component
Connector No.
Power terminal
Ground terminal
Illumination control switch
M29
1
3
Combination meter
M40
64, 66
65
A/T indicator
M48
3
4
Ashtray
M82
1
2
Grove box lamp
M67
1
2
IVCS switch
R9
2
12
Rear window defogger switch
M58
5
6
Power window main switch
D6, D10
17
12
Audio
M50
8
7
Hazard switch
M57
7
8
Push control unit
M53, M54
15
16
A/C auto amp.
M55
24
25
The ground for all of the components except for grove box lamp and ashtray are controlled through terminals
2 and 3 of the illumination control switch and body grounds M15, M71 and M76.
BATTERY SAVER CONTROL
NCEL0035S02
When the ignition switch is turned from ON (or START) to OFF (or ACC) positions while illumination lamps
are illuminated, the RAP signal is supplied to terminal 10 of the headlamp battery saver control unit from smart
entrance control unit terminal 5.
After counting 45 seconds by the RAP signal from the smart entrance control unit to headlamp battery saver
control unit, the ground supply to terminal 2 of the tail lamp relay from headlamp battery saver control unit
GI
MA
EM
LC
EC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
IDX
ILLUMINATION
System Description
EL-71
teminals 6 and 14 is terminated.
Then illumination lamps are turned off.
Illumination 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 illumination
lamps are illuminated.
When the lighting switch is turned from OFF to 1ST (or 2ND) after illumination lamps are turned off by the
battery saver control, ground is supplied
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to headlamp battery saver control unit terminals 5 and 13 from lighting switch terminal 11, and
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to tail lamp relay terminal 2 from headlamp battery saver control unit terminals 6 and 14.
Then illumination lamps illuminate again.
ILLUMINATION
System Description (Cont’d)
EL-72
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