Infiniti QX4 (R50). Manual — part 463
11
CHECK IN-VEHICLE SENSOR
Press
(DEF) switch the second time, temperature detected by in-vehicle sensor is indicated on the display screen.
ECON shown in display indicates negative temperature reading.
NOTE:
If temperature shown on display greatly differs from actual temperature, check sensor circuit first, then inspect sensor.
RHA500G
OK or NG
OK
©
GO TO 12.
NG
©
Go to In-vehicle Sensor Circuit (HA-132).
12
CHECK INTAKE SENSOR
Press
(DEF) switch the third time, temperature detected by intake sensor is indicated on the display.
NOTE:
If temperature shown on display greatly differs from actual temperature, check sensor circuit first, then inspect sensor.
RHA500GB
OK or NG
OK
©
1. Press
(DEF) switch the fourth time. Display returns to original presentation 5.
2. Turn ignition switch OFF or
(AUTO) switch ON.
3. END
NG
©
Go to Intake Sensor Circuit (HA-139).
TROUBLE DIAGNOSES
Self-diagnosis (Cont’d)
HA-50
13
CHECK MALFUNCTIONING SENSOR
Refer to the following chart for malfunctioning code No.
(If two or more sensors malfunction, corresponding code Nos. blink respectively two times.)
MTBL0083
*1: Conduct self-diagnosis STEP 2 under sunshine.
When conducting indoors, aim a light (more than 60W) at sunload sensor, otherwise Code No.
will indicate despite that
sunload sensor is functioning properly.
*2: HA-129
*3: HA-132
*4: HA-139
*5: HA-135
*6: HA-141
RHA455G
RHA501A
©
INSPECTION END
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
SC
EL
IDX
TROUBLE DIAGNOSES
Self-diagnosis (Cont’d)
HA-51
14
CHECK MALFUNCTIONING DOOR MOTOR POSITION SWITCH
Mode or (and) intake door motor position switch(es) is (are) malfunctioning.
(If two or more mode or intake doors are out of order, corresponding code numbers blink respectively two times.)
MTBL0508
*1: If mode door motor harness connector is disconnected, the following display pattern will appear.
,
,
,
,
,
Return to
*2: If intake door motor harness connector is disconnected, the following display pattern will appear.
,
,
,
Return to
RHA168DA
RHA498A
©
INSPECTION END
TROUBLE DIAGNOSES
Self-diagnosis (Cont’d)
HA-52
AUXILIARY MECHANISM: TEMPERATURE SETTING TRIMMER
=NBHA0021S03
Without Navigation System
NBHA0021S0301
The trimmer compensates for differences in range of
±
3°C (
±
6°F) between temperature setting (displayed
digitally) and temperature felt by driver.
Operating procedures for this trimmer are as follows:
I
Begin Self-diagnosis STEP 5 mode.
I
Press
(fan) UP switch to set system in auxiliary mode.
I
Display shows “
” in auxiliary mechanism.
It takes approximately 3 seconds.
I
Press either
(HOT) or
(COLD) switch as desired. Temperature will change at a rate of 0.5°C (1°F)
each time a switch is pressed.
SHA197E
When battery cable is disconnected, trimmer operation is canceled. Temperature set becomes that of
initial condition, i.e. 0°C (0°F).
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
SC
EL
IDX
TROUBLE DIAGNOSES
Self-diagnosis (Cont’d)
HA-53
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