NISSAN ALMERA 2001 Service Manual

Combination Meter Self-Diagnosis/HatchbackNJEL0447PERFORMING SELF-DIAGNOSIS MODENJEL0447S011. Turn the ignition switch to the ªLOCKº position.
2. Press both reset buttons on the combination meter and keep
them depressed.
3. Turn the ignition switch to the ªONº position, while keeping the
reset buttons pressed.
4. Release both reset buttons then self-diagnosis will start. The
sequence (A to L) is activated by press the either reset buttons.
NOTE:
If either reset button is not pressed for 20 seconds at each step or
if the ignition switch is turned OFF, the self-diagnosis mode is
exited.
Check items Display Remarks
A) Odometer segment test
SEL434X
All odo trip meter segments are ON.
B) Work instruction code
SEL435X
This information is not used for service. Please skip this
step.
C) Software code
SEL436X
This information is not used for service. Please skip this
step.
D) EEPROM code
SEL437X
This information is not used for service. Please skip this
step.
E) Hardware code
SEL438X
This information is not used for service. Please skip this
step.
F) PCB code
SEL439X
This information is not used for service. Please skip this
step.
G)Meter/gauge test
(Sweeping movement)
SEL440X
Tachometer, speedometer, fuel level gauge and water
temperature gauge have sweeping movement test.
(The meter/gauges operate MIN.®MAX., MAX.®MIN.
for 2 times)
The odo trip meter segment flushes during the sweep
movement.
METERS AND GAUGES
Combination Meter Self-Diagnosis/Hatchback
EL-173

Check items Display Remarks
H)Error 1
(Bit 0 - Bit 3)
SEL441X
The segment of each bit displays ª0º, meaning no failure.
If the bit(s) displays figures other than ª0º, the item of the
bit has failed.
For details, refer to ªFailure chart for Error 1 and Error Eº
below.
I)Error E
(Bit 4 - Bit 7)
SEL442X
J) Fuel warning lamp test
SEL443X
Fuel warning lamp is on and odo trip meter segment
ªFUELº flashes.
K)Fuel gauge calibration
(CAL)
SEL444X
This information is not used for service. Please skip this
step.
L)Fuel gauge calibration
(OLD)
SEL445X
This information is not used for service. Please skip this
step.
Failure Chart for ªError 1º and ªError EºNJEL0447S0101
Bit Detectable items Description of the failureDisplayed figure on the
bit
Failure No failure
0Speedometer input
signalNo input signal
When no signal is detected for 30 minutes continuously
with the ignition ON, it should be judged as signal failure.
(If input signal is detected later, then the judgement will be
canceled immediately.)1
0
Abnormal input signal
When any signal of frequency which would not exist in nor-
mal conditions is detected, it should be judged as signal
failure.2
1Tachometer input
signalNo input signal
When no signal is detected for 30 minutes continuously
with the ignition ON, it should be judged as signal failure.
(If input signal is detected later, then the judgement will be
canceled immediately.)1
0
Abnormal input signal
When any signal of frequency which would not exist in nor-
mal conditions is detected, it should be judged as signal
failure.2
METERS AND GAUGES
Combination Meter Self-Diagnosis/Hatchback (Cont'd)
EL-174

Bit Detectable items Description of the failureDisplayed figure on the
bit
Failure No failure
2Fuel level input sig-
nalShort circuit
When short circuit of the signal line is detected for 5 sec-
onds or more, it should be judged as short-circuit failure.1
0
Open circuit
When open circuit of the signal line is detected for 5 sec-
onds or more, it should be judged as open-circuit failure.2
3Water temperature
input signalShort circuit
When short circuit of the signal line is detected for 5 sec-
onds or more, it should be judged as short-circuit failure.1
0
Open circuit
When open circuit of the signal line is detected for 5 sec-
onds or more, it should be judged as open-circuit failure.2
4Outside air tem-
perature input sig-
nalShort circuit
When short circuit of the signal line is detected for 5 sec-
onds or more, it should be judged as short-circuit failure.1
0
Open circuit
When open circuit of the signal line is detected for 5 sec-
onds or more, it should be judged as open-circuit failure.2
5Reset buttons Short circuit for reset but-
tons
When the short circuit is
continuously detected for 5
minutes or more, it should
be judged as short-circuit
failure.Right side reset button has
failed.1
0 Left side reset button has
failed.2
Both reset buttons have
failed.3
6Ð Ð 00
7CPU EEPROM failure 1
0
CPU RAM failure 2
Combination Meter Calibration
After replacing a combination meter, it might be necessary to cali-
brate the fuel gauge/low fuel warning lamp. In case the fuel warn-
ing lamp is flashing after replacing the combination meter perform
the following:
1. Press both reset buttons.
2. Turn the ignition ONand keep the reset buttons depressed
for at least 5 seconds.
3. Release both reset buttons.
The low fuel warning lamp will stop flashing and the combina-
tion meter will show CALL and possibly CALL FAIL. Showing
CALL FAIL does not indicate a concern as this might be related
to the current (unexpected) amount of fuel in the tank.
METERS AND GAUGES
Combination Meter Self-Diagnosis/Hatchback (Cont'd)
EL-175

Trouble Diagnoses/HatchbackNJEL0448PRELIMINARY CHECKNJEL0448S01
SEL361WA
*1: Combination Meter Self-Diagnosis
(EL-173)*3: POWER SUPPLY AND GROUND
CIRCUIT CHECK (EL-178)*4: Symptom Chart 1 (EL-177)
*5: Symptom Chart 2 (EL-177)
METERS AND GAUGES
Trouble Diagnoses/Hatchback
EL-176

SYMPTOM CHARTNJEL0448S02Symptom Chart 1 (Malfunction is Indicated in
Diagnosis Mode)
NJEL0448S0201
Symptom Possible causes Repair order
Odo/trip meter indicates
malfunction in Diagnosis
mode.Unified meter control unit Replace unified meter control unit.
Multiple meter/gauge indi-
cate malfunction in Diagno-
sis mode.
One of speedometer/
tachometer/fuel gauge/
water temp. gauge indi-
cates malfunction in Diag-
nosis mode.1. Meter/Gauge
2. Unified meter control unit1. Check resistance of meter/gauge indicating malfunc-
tion. If the resistance is NG, replace the meter/
gauge.
2. If the resistance of meter/gauge is OK, replace uni-
fied meter control unit.
Symptom Chart 2 (No Malfunction is Indicated in
Diagnosis Mode)
NJEL0448S0202
Symptom Possible causes Repair order
One of speedometer/
tachometer/fuel gauge/
water temp. gauge is mal-
functioning.1. Sensor signal
- Vehicle speed signal
- Engine revolution signal
- Fuel gauge
- Water temp. gauge
2. Unified meter control unit1. Check the sensor for malfunctioning meter/gauge.
INSPECTION/VEHICLE SPEED SENSOR (Refer to
EL-179.)
INSPECTION/ENGINE REVOLUTION SIGNAL
(Refer to EL-180.)
INSPECTION/FUEL LEVEL SENSOR UNIT (Refer to
EL-181.)
INSPECTION/THERMAL TRANSMITTER (Refer to
EL-182.)
2. Replace unified meter control unit. Multiple meter/gauge are
malfunctioning. (except
odo/trip meter)
Before starting trouble diagnoses below, perform PRELIMINARY
CHECK, EL-176.
METERS AND GAUGES
Trouble Diagnoses/Hatchback (Cont'd)
EL-177

YEL775C
YEL776C
POWER SUPPLY AND GROUND CIRCUIT CHECK=NJEL0448S03Power Supply Circuit CheckNJEL0448S0301
ModelsTerminals Ignition switch position
(+) (þ) OFF ACC ON
before VIN
No. Ð
N16U013512628
GroundBattery
voltageBattery
voltageBattery
voltage
after VIN
No. Ð
N16U013512623
before VIN
No. Ð
N16U013512640
Ground 0V 0VBattery
voltage
after VIN
No. Ð
N16U01351261
If NG, check the following.
+10A fuse [No. 12, located in fuse block (J/B)]
+10A fuse [No. 30, located in fuse block (J/B)]
+Harness for open or short between fuse and combination
meter
YEL777C
YEL778C
Ground Circuit CheckNJEL0448S0302
Models Terminals Continuity
before VIN No. Ð
N16U013512627 - Ground
Ye s
after VIN No. Ð
N16U013512610 - Ground
METERS AND GAUGES
Trouble Diagnoses/Hatchback (Cont'd)
EL-178

INSPECTION/VEHICLE SPEED SENSOR=NJEL0448S04
1 CHECK VEHICLE SPEED SENSOR OUTPUT
1. Remove vehicle speed sensor from transmission.
2. Check voltage between combination meter terminal 29 (M152), 5 (M171) and ground while quickly turning speed sen-
sor pinion.
YEL779C
OK or NG
OK©Vehicle speed sensor is OK.
NG©GO TO 2.
2 CHECK VEHICLE SPEED SENSOR
Check resistance between vehicle speed sensor terminals 1 and 2.
SEL645WA
OK or NG
OK©Check the following.
+Harness between combination meter and vehicle speed sensor
+Vehicle speed sensor ground circuit
NG©Replace vehicle speed sensor.
METERS AND GAUGES
Trouble Diagnoses/Hatchback (Cont'd)
EL-179

INSPECTION/ENGINE REVOLUTION SIGNAL=NJEL0448S05
1 CHECK ECM OUTPUT
1. Start engine.
2. Check voltage between combination meter terminals 30 (M152), 22 (M171) and ground at idle and 2,000 rpm.
YEL780C
OK or NG
OK©Engine revolution signal is OK.
NG©Harness for open or short between ECM and combination meter
METERS AND GAUGES
Trouble Diagnoses/Hatchback (Cont'd)
EL-180

INSPECTION/FUEL LEVEL SENSOR UNIT=NJEL0448S06
1 CHECK GROUND CIRCUIT FOR FUEL LEVEL SENSOR UNIT
Check harness continuity between fuel level sensor unit connector terminal 1 and ground.
SEL400X
OK or NG
OK©GO TO 2.
NG©Repair harness or connector.
2 CHECK FUEL LEVEL SENSOR UNIT
Refer to ªFUEL LEVEL SENSOR UNIT CHECKº (EL-183).
OK or NG
OK©GO TO 3.
NG©Replace fuel level sensor unit.
3 CHECK HARNESS FOR OPEN OR SHORT
1. Disconnect combination meter connector and fuel level sensor unit connector.
2. Check continuity between combination meter terminal 31 (M152), 24 (M171) and fuel level sensor unit connector termi-
nal 4.
Continuity should exist.
3. Check continuity between combination meter terminal 31 (M152), 24 (M171) and ground.
Continuity should not exist.
YEL781C
OK or NG
OK©Fuel level sensor unit is OK.
NG©Repair harness or connector.
METERS AND GAUGES
Trouble Diagnoses/Hatchback (Cont'd)
EL-181

INSPECTION/THERMAL TRANSMITTER=NJEL0448S07
1 CHECK THERMAL TRANSMITTER
Refer to ªTHERMAL TRANSMITTER CHECKº (EL-183).
OK or NG
OK©GO TO 2.
NG©Replace.
2 CHECK HARNESS FOR OPEN OR SHORT
1. Disconnect combination meter connector and thermal transmitter connector.
2. Check continuity between combination meter terminal 32 (M152), 20 (M171) and thermal transmitter terminal 1.
Continuity should exist.
3. Check continuity between combination meter terminal 32 (M152), 20 (M171) and ground.
Continuity should not exist.
YEL782C
OK or NG
OK©Thermal transmitter is OK.
NG©Repair harness or connector.
METERS AND GAUGES
Trouble Diagnoses/Hatchback (Cont'd)
EL-182