Infiniti Q45 (FY33). Manual - part 270
SEL852W
DIAGNOSTIC PROCEDURE 1
[Lighting switch (AUTO) check]
CHECK LIGHTING SWITCH (AUTO)
INPUT SIGNAL.
CONSULT-II
See “AUTO LIGHT SW” in DATA MONI-
TOR mode.
When lighting switch is in AUTO:
AUTO LIGHT SW
ON
When lighting switch is OFF:
AUTO LIGHT SW
OFF
-------------------------------------------------------------------------------------------------------------------------------------- OR --------------------------------------------------------------------------------------------------------------------------------------
ON BOARD
Perform On board diagnosis — Mode II
(Switch monitor) for light switch. Refer to
EL-299.
Refer to wiring diagram in EL-65.
OK
E
NG
Check the following.
I
Lighting switch
I
Harness for open or
short between BCM and
lighting switch
I
Ground circuit for lighting
switch
Lighting switch (AUTO) is OK.
SEL574W
DIAGNOSTIC PROCEDURE 2
(Auto light output check)
SEL098V
CHECK AUTO LIGHT OUTPUT SIGNAL/
CIRCUIT.
CONSULT-II
See “HEADLAMP RELAY” and “TAIL
LAMP RELAY” in ACTIVE TEST mode,
and turn lighting switch to AUTO position.
Headlamp and tail lamp should turn on.
-------------------------------------------------------------------------------------------------------------------------------------- OR --------------------------------------------------------------------------------------------------------------------------------------
TESTER
1. Turn the ignition switch to ON position
or lighting switch to AUTO position.
2. Check voltage between BCM terminal
q
5
or
q
11
and ground.
Refer to wiring diagram in EL-66.
OK
E
NG
Check harness for open or
short between BCM and
headlamp relay or tail lamp
relay.
Auto light output is OK.
Output condition
Voltage V
Sensor not struck by light
(Determined to be “dark” by
sensor)
0
Sensor struck by light
Approx. 12
GI
MA
EM
LC
EC
FE
AT
PD
FA
RA
BR
ST
RS
BT
HA
IDX
HEADLAMP (FOR U.S.A.) — CONVENTIONAL TYPE —
Trouble Diagnoses/Auto Light Operation
(Cont’d)
H
H
EL-71