ignition NISSAN TEANA 2003 Service Manual

COMBINATION METERS
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Terminals and Reference Value for Unified Meter and A/C Amp.BKS001S3
Self-Diagnosis Mode of Combination MeterBKS001S4
SELF-DIAGNOSIS MODE FUNCTION

Odo/trip meter segment and shift indicator segment operation can be checked in self-diagnosis mode.

Meter/gauge can be checked in self-diagnosis mode.
OPERATION PROCEDURE
1. Turn the ignition switch ON, and switch the odo/trip meter to “trip A” or “trip B”.
NOTE:
If the diagnosis function is activated with the “trip A” displayed, the mileage on the “trip A” will indicate
0000.0, but the actual trip mileage will be retained. (Trip same way for “trip B”.)
2. Turn ignition switch OFF.
3. While pushing the odo/trip meter switch, turn ignition switch ON again.
4. Make sure that the trip meter displays “0000.0”.
TerminalWire
colorItemCondition
Reference value
Ignition
switchOperation or condition
1 L CAN- H — — —
9RTX communication line (To
combination meter)ON —
11 P C A N - L — — —
19 G/BRX communication line
(From combination meter)ON —
21 Y/R Battery power supply OFF — Battery voltage
22 GIgnition switch ON or
STARTON — Battery voltage
26 V/WVehicle speed signal
(8-pulse)ONSpeedometer operated
[When vehicle speed is
approx. 40 km/h (25 MPH)]NOTE:
Maximum voltage may be 12V due to
specifications (connected units).
28 G/O Fuel level sensor signal — —Refer to DI-24, "
CHECK FUEL LEVEL
SENSOR UNIT" .
29 B Ground (for power) ON — Approx. 0V
30 B Ground ON — Approx. 0V
35 V Ignition switch ACC or ON ACC — Battery voltage
36 B/W Fuel level sensor ground ON — Approx. 0V
46 W/L Ignition switch ON ON — Battery voltage
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DI-14
COMBINATION METERS

5. Press the odo/trip meter switch at least 3 times (within 7 seconds after the ignition switch is turned ON).
6. All the segments on the odo/trip meter and shift indicator illuminate, and simultaneously the low-fuel warn-
ing lamp indicator illuminates. At this time, the unified meter control unit is turned to diagnosis mode.
NOTE:

A/T MODELS (1)

CVT MODELS (2)
7. Each meter activates during pressing odo/trip meter switch. (At this time, the low-fuel warning lamp goes
off, low water temperature indicator lamp and high water temperature warning lamp goes on.)
NOTE:
The figure is reference.
CONSULT-II FunctionBKS001S5
Refer to DI-29, "CONSULT-II Function (METER A/C AMP)" in “UNIFIED METER AND A/C AMP”.
Trouble DiagnosisBKS001S6
HOW TO PROCEED WITH TROUBLE DIAGNOSIS
1. Confirm the symptom or customer complaint.
2. Perform preliminary check. Refer to DI-15, "
PRELIMINARY CHECK" .
3. According to the symptom chart, repair or replace the cause of the symptom.
4. Does the meter operate normally? If so, GO TO 5. If not, GO TO 3.
5. INSPECTION END
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COMBINATION METERS
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PRELIMINARY CHECK
1. CHECK SELF-DIAGNOSIS RESULT OF UNIFIED METER AND A/C AMP.
1. Start engine.
2. Select “METER A/C AMP” on COSULT-II, and perform self-diagnosis of unified meter and A/C amp. Refer
to DI-29, "
CONSULT-II Function (METER A/C AMP)"
3. After erasing the self-diagnosis result, perform self-diagnosis again.
Self-diagnosis results content
No malfunction detected >> GO TO 2.
Malfuction detected >> GO TO DI-17, "
SYMPTOM CHART 2" .
2. CHECK WARNING LAMP ILLUMINATION
1. Turn ignition switch ON.
2. Make sure warninig lamps (such as malfunction indicator lamp and oil pressure warning lamp) illuminate.
Do warninig lamps illuminate?
OK >> GO TO 3.
NG >> Check ignition power supply system of combination meter.
3. CHECK SELF-DIAGNOSIS OPERATION OF COMBINATION METER
Perform combination meter self-diagnosis. Refer to DI-13, "
OPERATION PROCEDURE" .
Does self-diagnosis function operate?
OK >> GO TO 4.
NG >> Check battery power supply of combinatiom meter and ground circuit.
4. CHECK COMBINATION METER CIRCUIT
Check indication of each meter/gauge in self-diagnosis mode.
OK or NG
OK >> GO TO 5
NG >> Replace combination meter.
5. CHECK LOW-FUEL WARNING LAMP ILLUMINATION
While checking low-fuel warning lamp check, confirm illumination of low-fuel warning lamp.
Does low
-fuel warning lamp illuminate (while not pushing odo/trip meter switch)?
YES >> GO TO 6.
NO >> Replace combination meter.
Condition of odo/trip meter switch Low-fuel warning lamp
Pressed Does not illuminate.
Released Illuminates.

DI-18
COMBINATION METERS

Power Supply and Ground Circuit InspectionBKS001S7
1. CHECK FUSE
Check combination meter and unified meter and A/C amp. fuses for blown-out.
OK or NG
OK >> GO TO 2.
NG >> Be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-3, "
POWER
SUPPLY ROUTING CIRCUIT" .
2. CHECK POWER SUPPLY CIRCUIT
1. Check voltage between combination meter harness connector
terminals and ground.
2. Check voltage between unified meter and A/C amp. harness
connector terminals and ground.
OK or NG
OK >> GO TO 3.
NG >> Check the following.

Harness between combination meter and fuse

Harness between unified meter and A/C amp. and fuse
Unit Power source Fuse No.
Combination meter Battery 17
Ignition switch ACC or ON 6
Ignition switch ON or START 14
Unified meter and A/C amp.Battery 19
Ignition switch ACC or ON 6
Ignition switch ON or START 12
Ignition switch ON 10, 11
Terminals Ignition switch position
(+)
(–) OFF ACC ON
Connector Terminal
M707
GroundBattery
voltageBattery
voltageBattery
voltage
17 0 VBattery
voltageBattery
voltage
8 0 V 0 VBattery
voltage
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Terminals Ignition switch position
(+)
(–) OFF ACC ON
Connector Terminal
M4221
GroundBattery
voltageBattery
voltageBattery
voltage
35 0 VBattery
voltageBattery
voltage
22 0 V 0 VBattery
voltage
M45 46 0 V 0 VBattery
voltage
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COMBINATION METERS
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3. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect combination meter connector and unified meter and A/C amp. connector.
3. Check continuity between combination meter harness connector
M70 terminals 10, 11, 12 and ground.
4. Check continuity between unified meter and A/C amp. harness
connector M42 terminal 29, 30 and ground.
OK or NG
OK >> INSPECTION END
NG >> Repair harness or connector.10 – Ground
: Continuity should exist. 11 – Ground
12 – Ground
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29 – Ground
: Continuity should exist.
30 – Ground
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DI-20
COMBINATION METERS

Vehicle Speed Signal InspectionBKS001S8
1. CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS
Perform the ABS actuator and electric unit (control unit) self-diagnosis. Refer to BRC-57, "
CONSULT-II Func-
tions" (with VDC system) or BRC-17, "CONSULT-II Functions (ABS)" (without VDC system).
Self
-diagnostic results content
No malfunction detected>>GO TO 2.
Malfunction detected>>Check applicable parts, and repair or replace corresponding parts.
2. CHECK UNIFIED METER AND A/C AMP. OUTPUT SIGNAL
1. Start engine and drive vehicle at approximately 40 km/h (25 MPH).
2. Check voltage signal between unified meter and A/C amp. har-
ness connector M42 terminal 26 and ground with simple oscillo-
scope of CONSULT-II.
OK or NG
OK >> GO TO 3.
NG >>

If monitor indicates “0V” constantly, repair or replace malfunctioning parts after checking each
unit inputting vehicle speed signal (8 pulse), harness and connector between each unit and uni-
fied meter and A/C amp.

If monitor indicates “5V” or “12V” constantly, replace unified meter and A/C amp. Refer to DI-34,
"Removal and Installation of Unified Meter and A/C Amp." .
3. CHECK CONTINUITY BETWEEN COMBINATION METER AND UNIFIED METER AND A/C AMP.
1. Turn ignition switch OFF.
2. Disconnect combination meter connector and unified meter and A/C amp. connector.
3. Check continuity between combination meter harness connector
M70 terminal 20 and unified meter and A/C amp. harness con-
nector M42 terminal 26.
OK or NG
OK >> Replace combination meter.
NG >> Repair harness or connector.26 – Ground:NOTE:
Maximum voltage may be
12V due to specifications
(connected units).
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20 – 26 : Continuity should exist.
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DI-22
COMBINATION METERS

2. CHECK UNIFIED METER AND A/C AMP. INPUT SIGNAL
1. Select “ENGINE” on CONSULT-II.
2. Using “COOLAN TEMP/S” on “DATA MONITOR”, print out the
CONSULT-II screen.
3. Select “METER A/C AMP” on CONSULT-II.
4. Using “W TEMP METER” on “DATA MONITOR”, compare the
value of “DATA MONITOR” with that of the “COOLAN TEMP/S”.
OK or NG
OK >> Perform ECM self-diagnosis. Refer to EC-425, "CON-
SULT-II Function (ENGINE)" . Check applicable parts,
and repair or replace corresponding parts
NG >> Replace unified meter and A/C amp. Refer to DI-34,
"Removal and Installation of Unified Meter and A/C
Amp." .
Fuel Level Sensor Signal InspectionBKS001SB
NOTE:
The following symptoms are not malfunction.

Fuel gage
–Depending on vehicle position or driving circumstance, the fuel level in the tank various, and the pointer
may fluctuate.
–If the vehicle is fueled with the ignition switch ON, the pointer will move slowly.

Low-fuel warning lamp
–Depending on vehicle position or driving circumstance, the fuel in the tank flows and the warning lamp ON
timing may change.
1. CHECK UNIFIED METER AND A/C AMP. INPUT SIGNAL
1. Select “METER A/C AMP” on CONSULT-II.
2. Using “FUEL METER” on “DATA MONIOR”, compare the value
of “DATA MONITOR” with fuel gauge pointer of combination
meter.
OK or NG
OK >> GO TO 2.
NG >> Replace combination meter.
2. CHECK FUEL LEVEL SENSOR UNIT
1. Turn ignition switch OFF.
2. Check fuel level sensor unit. Refer to DI-24, "
CHECK FUEL LEVEL SENSOR UNIT" .
OK or NG
OK >> GO TO 3.
NG >> Replace the corresponding parts.
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Fuel gauge pointer Reference value of data monitor [lit.]
Full Approx. 66
Three quarters Approx. 53
Half Approx. 36
A quarter Approx. 18
Empty Approx. 8
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COMBINATION METERS
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3. CHECK FUEL LEVEL SENSOR SIGNAL CIRCUIT
1. Disconnect unified meter and A/C amp. connector and fuel level sensor unit and fuel pump connector.
2. Check continuity between unified meter and A/C amp. harness
connector M42 terminal 28 and fuel level sensor unit and fuel
pump harness connector B223 terminal 2.
3. Check continuity between unified meter and A/C amp. harness
connector M42 terminal 28 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.
4. CHECK FUEL LEVEL SENSOR GROUND CIRCUIT
1. Check continuity between fuel level sensor unit and fuel pump
harness connector B223 terminal 5 and unified meter and A/C
amp. harness connector M42 terminal 36.
2. Check continuity between fuel level sensor unit and fuel pump
harness connector B223 terminal 5 and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair harness or connector.
5. CHECK INSTALLATION CONDITION
Check fuel level sensor unit and fuel pump installation, and check whether the float arm interferes or binds
with any of the internal components in the fuel tank.
OK or NG
OK >> Replace unified meter and A/C amp. Refer to DI-34, "Removal and Installation of Unified Meter
and A/C Amp." .
NG >> Install the fuel level sensor unit and fuel pump properly.
Fuel Gauge Does Not Move to FULL positionBKS001SG
1. QUESTION 1
Does it take a long time for the pointer to move to FULL position?
YES >> GO TO 2.
NO >> GO TO 3.
2. QUESTION 2
Was the vehicle fueled with the ignition switch ON?
YES >> Be sure to fuel the vehicle with the ignition switch OFF. Otherwise, it will take a long time to move
to FULL position because of the characteristic of the fuel gauge.
NO >> GO TO 3.28 – 2 : Continuity should exist.
28 – Ground : Continuity should not exist.
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5 – 36 : Continuity should exist.
5 – Ground : Continuity should not exist.
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UNIFIED METER AND A/C AMP
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CONSULT-II Function (METER A/C AMP)BKS001SO
CONSULT-II performs the following functions communicating with the unified meter and A/C amp.
CONSULT-II BASIC OPERATION
Refer to GI-34, "CONSULT-II Start Procedure"
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which performs CAN communication.
SELF-DIAGNOSTIC RESULTS
Display Item List
“TIME” indicates the condition of the self-diagnostic results judged by each signal input.

Normal: In case of operating properly at the present in spite of having malfunction in the past, then “TIME”
indicates “1-63”.

Malfunction: Soon after detecting malfunctions by self-diagnoses or current malfunction, “0” is indicated.
After returning to normal condition, every time when ignition switch is turned to “OFF” from “ON”, time will be
added like “1”→“2”→“3”···“63”, and when the key operation is performed 64 times, the result of the self-diag-
noses will be erased. And if any malfunction is detected again, “0” will be indicated.
System Diagnosis mode DescriptionReference
page
METER A/C AMPSelf-diagnostic resultsUnified meter and A/C amp. check the conditions and indicates
any error that unified meter and A/C amp. memorized.DI-29
CAN diagnostic support monitorThe results of transmit/receive diagnosis of CAN communication
can be read.LAN-44
Data monitor Displays unified meter and A/C amp. input data in real time.DI-30
Display item [Code] Malfunction is detected when...
CAN COMM CIRC [U1000]Malfunction is detected in CAN communication.
CAUTION:
Even when there is no malfunction on CAN communication system, malfunction may be
misinterpreted when battery has low voltage (when maintaining 7-8V for about 2 seconds)
or 10A fuse [No. 19, located in the fuse block (J/B)] is disconnected.
METER COMM CIRC [B2202]Malfunction is detected in communication of between combination meter and unified meter and
A/C amp.
VEHICLE SPEED CIRC [B2205]When an erroneous speed signal is input for 1 second.
CAUTION:
Even when there is no malfunction on speed signal system, malfunction may be misinter-
preted when battery has low voltage (when maintaining 7-8V for about 2 seconds).

DI-32
UNIFIED METER AND A/C AMP

DTC [U1000] CAN Communication CircuitBKS002B1
1. CHECK CAN COMMUNICATION
1. Select “CAN DIAG SUPPORT MNTR” mode for “METER A/C AMP” with CONSULT-II.
2. Print out CONSULT-II screen.
>> Go to “LAN SYSTEM”. Refer to LAN-49, "
CAN System Specification Chart" .
DTC [B2202] Meter Communication CircuitBKS002B2
1. CHECK CONNECTOR
Check combination meter, unified meter and A/C amp. and terminals (combination meter side, unified meter
and A/C amp. side and harness side) for looseness or bent terminals.
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
2. CHECK METER/GAUGES VISUALLY
Does the pointer on the meter/gauge fluctuate at the engine start?
Is the fluctuation acceptable?
YES >> GO TO 3.
NO >> GO TO 6.
3. CHECK CONTINUITY COMMUNICATION CIRCUIT (TX: COMBINATION METER)
1. Turn ignition switch OFF.
2. Disconnect combination meter connector and unified meter and A/C amp. connector.
3. Check continuity between combination meter harness connector
M70 terminal 18 and unified meter and A/C amp. harness con-
nector M41 terminal 19.
4. Check continuity between combination meter harness connector
M70 terminal 18 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.
4. CHECK VOLTAGE OF UNIFIED METER AND A/C AMP.
1. Connect unified meter and A/C amp. connector.
2. Turn ignition switch ON.
3. Check voltage between combination meter harness connector
M70 terminal 18 and ground.
OK or NG
OK >> GO TO 5.
NG >> Replace unified meter and A/C amp. Refer to DI-34,
"Removal and Installation of Unified Meter and A/C
Amp." . 18 – 19 : Continuity should exist.
18 – Ground : Continuity should not exist.
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18 – Ground : Approx. 5 V
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