Infiniti I35 (A33). Manual - part 386

Trouble Diagnoses

=NHEL0320

SEGMENT CHECK

NHEL0320S01

Board computer display segment can be checked by the procedure shown below.
1. Turn ignition switch to ON position with pushing board computer steering switch “TRIP”. Then segment

check will start.

2. Segment check will end after 1 cycle of segment check is performed or any of following conditions exists.

Ignition switch is returned to ACC or OFF position.

Vehicle speed signal is input.

PRELIMINARY CHECK

NHEL0320S02

SEL831W

EL-145

EL-130

DIAGNOSES PROCEDURE

NHEL0320S03

Symptom

Possible cause

Repair order

Outside air temperature is
not displayed properly.
(It may take a short time to
steady the indication after
ignition switch is turned to
ON.)

1. Ambient sensor
2. Ambient sensor circuit
3. A/C on signal
4. Vehicle speed sensor signal

1. Check ambient sensor. Refer to “Electrical Compo-

nents Inspection”, EL-146.

2. Check harness for open or short between ambient

sensor and board computer.

3. Verify more than 4V is present at terminal 58 of

board computer when A/C is operated.

4. Make sure journey distance (trip) is displayed prop-

erly. If NG, check journey distance (trip) display.

Range (Cruising possible
distance) is not displayed
properly.

1. Average fuel consumption display
2. Fuel tank gauge signal circuit

1. Make sure fuel consumption is displayed properly. If

NG, check fuel consumption display.

2. Make sure fuel gauge operates properly. If NG,

check fuel gauge. Refer to EL-137.

IDX

BOARD COMPUTER

Trouble Diagnoses

EL-145

Symptom

Possible cause

Repair order

Journey time (hour meter)
is not indicated properly.

1. 10A fuse

1. 10A fuse [No. 12, located in the fuse block (J/B)].

Verify battery voltage is present at terminal 62 of
combination meter.

Average fuel consumption
is not displayed properly.

Fuel consumption signal

Check harness for open or short between ECM termi-
nals (20, 34) and combination meter terminals (20, 16).

Average vehicle speed is
not indicated properly.

Journey time (hour meter) display

Make sure journey time is displayed properly. If NG,
check journey time display.

RHA459E

Electrical Components Inspection

NHEL0321

AMBIENT SENSOR

NHEL0321S01

The ambient sensor is attached to the radiator core support. It
detects ambient temperature and converts it into a resistance value
which is then input to A/C auto amp. and board computer.
After disconnecting ambient sensor harness connector, measure
resistance between terminals 1 and 2, using the table below.

Temperature °C (°F)

Resistance k

Ω

−15 (5)

12.73

−10 (14)

9.92

−5 (23)

7.80

0 (32)

6.19

5 (41)

4.95

10 (50)

3.99

15 (59)

3.24

20 (68)

2.65

25 (77)

2.19

30 (86)

1.81

35 (95)

1.51

40 (104)

1.27

45 (113)

1.07

BOARD COMPUTER

Trouble Diagnoses (Cont’d)

EL-146

SEL159Y

System Description

NHEL0307

This unit displays earth magnetism and heading direction of
vehicle.

DIRECTION DISPLAY

NHEL0307S02

Push the “COMP” switch when the ignition key is in the “ACC” or
“ON” position. The direction will be displayed.
Pushing the “COMP” switch a second time will turn off the display.
1.

If the display reads “C”, calibrate the compass by driving the
vehicle in 3 complete circles at less than 5 MPH.

To adjust for Compass Variance:

Press the “COMP” button for more than 3 seconds. The cur-
rent zone number will appear in the display.

Find your current location and variance zone number on the
zone map.

Press the “COMP” button until the new zone number appears
in the display. After you stop pressing the button in, the display
will show a compass direction within a few seconds.

NOTE:
1)

Do not install the ski rack, antenna, etc. which are attached to
the vehicle by means of a magnet. They affect the operation
of the compass.

If the compass deviates from the correct indication soon after
repeated adjustment, have the compass checked at an autho-
rized dealer.

The compass may not indicate the correct compass point in
tunnels or while driving up or down a steep hill.
(The compass returns to the correct compass point when the
vehicle moves to an area where the geomagnetism is stabi-
lized.)

Cleaning the Mirror
When cleaning the mirror, use a paper towel or similar mate-
rial dampened with glass cleaner. Do not spray glass cleaner
directly on the mirror as that may cause the liquid cleaner to
enter the mirror housing.

IDX

COMPASS

System Description

EL-147

SEL168Y

“C” is displayed in the compass window.
The compass needs to be calibrated. Drive the vehicle in 3
circles at 5 MPH or less until the display reads a direction. You
can also calibrate the compass by driving your vehicle on your
everyday routine. The compass will be calibrated once it has
tracked 3 complete circles.
Inaccurate compass direction

With the display turned on, push the “COMP” button for 3
seconds, until the Zone selection comes up (a number will be
displayed in the mirror compass window).

Toggle until correct zone is found and release switch.

The display will show all segments, and return to the normal
compass mode within 10 seconds of no switch activity.

If the vehicle changes zone, repeat steps 1 thru 3. See map.

COMPASS

System Description (Cont’d)

EL-148

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