battery NISSAN TEANA 2003 Workshop Manual

TROUBLE DIAGNOSIS
ATC-47
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FUNCTION CONFIRMATION PROCEDURE
1. SET IN SELF-DIAGNOSIS MODE
1. Turn ignition switch ON.
2. Set in self-diagnosis mode as follows. Within 10 seconds after starting engine (ignition switch is turned
ON.), press A/C switch for at least 5 seconds.
CAUTION:

Press A/C switch after indicating LED of intake switch.

If battery voltage drops below 12 V during diagnosis STEP-3, door motor speed becomes slower
and as a result, the system may generate an error even when operation is normal. To avoid this,
start engine before performing this diagnosis.

Former STEP-1 (LEDs and display screen are checked) does not exist in this self-diagnosis func-
tion.
>> GO TO 2.
2. STEP-2: SENSOR CIRCUITS ARE CHECKED FOR OPEN OR SHORT CIRCUIT
Does code No. 20 appear on the display?
YES >> GO TO 3.
NO >> GO TO 13.
3. CHECK TO ADVANCE SELF-DIAGNOSIS STEP-3
Press temperature control switch (UP, driver side).
Advance to self
-diagnosis STEP-3?
YES >> GO TO 4.
NO >> Replace A/C and AV switch. (Temperature control switch is malfunctioning.)
4. CHECK TO RETURN SELF-DIAGNOSIS STEP-2
Press temperature control switch (DOWN, driver side).
Return to self
-diagnosis STEP-2?
YES >> GO TO 5.
NO >> Malfunctioning A/C and AV switch or unified meter and A/C amp. Refer to AT C - 9 4 , "
Self-diagno-
sis" .
5. STEP-3: MODE DOOR AND INTAKE DOOR POSITIONS ARE CHECKED
Press temperature control switch (UP, driver side).
Does code No. 30 appear on the display?
YES >> GO TO 6.
NO >> GO TO 14.
RHA970DB
RHA869DD

ATC-52
TROUBLE DIAGNOSIS

AUXILIARY MECHANISM: TEMPERATURE SETTING TRIMMER
The trimmer compensates for differences in range of ±3°C between temperature setting (displayed digitally)
and temperature felt by customer.
Operating procedures for this trimmer are as follows:
1. Begin Self-diagnosis STEP-5 mode. Refer to AT C - 4 6 , "
Self-diagnosis Function" .
2. Press fan control switch (UP) to set system in auxiliary mode.
3. Display shows “61” in auxiliary mechanism. It takes approximately 3 seconds to enable setting operation.
4. Press temperature control switch (driver side) as desired. Temperature will change at a rate of 0.5°C each
time a switch is pressed.
CAUTION:
A decimal point is not indicated during a setup of temperature compensation.
When battery cable is disconnected or battery voltage below 10 V, trimmer operation is canceled. Temperature
set becomes that of initial condition, i.e. 0°C.
PJIA0014E

TROUBLE DIAGNOSIS
ATC-53
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AUXILIARY MECHANISM: FOOT POSITION SETTING TRIMMER
Wind distribution ratio in FOOT mode can be set.
Operating procedures for this trimmer are as follows:
1. Begin self-diagnosis STEP-5 mode. Refer to AT C - 4 6 , "
Self-diagnosis Function" .
2. Press fan control switch (UP) to set system in auxiliary mode.
3. Display shows “61” in auxiliary mechanism. It takes approximately 3 seconds to enable setting operation.
4. Press mode switch as desired.
When battery cable is disconnected or battery voltage below 10 V, trimmer operation is canceled. Air distribu-
tion ratio set becomes that of initial condition.
AUXILIARY MECHANISM: INLET PORT MEMORY FUNCTION
When ignition switch is turned from OFF to ON, inlet port memory function at manual mode can be set.
Operating procedures for this trimmer are as follows:
1. Begin self-diagnosis STEP-5 mode. Refer to AT C - 4 6 , "
Self-diagnosis Function" .
2. Press fan control switch (UP) to set system in auxiliary mode.
3. Display shows “61” in auxiliary mechanism.
4. Press the intake switch as desired.
When battery cable is disconnected or battery voltage below 10 V, memory function is canceled. Memory func-
tion set becomes that of initial condition.
SJIA1580E
LED status of intake switch Setting status
Setting changeover
method
REC FRE REC FRE
ON OFFManual REC status is memorized.
(Initial setting)AUTO control (Initial setting)
Intake SW: ON ON ON Manual REC status is memorized. Manual FRE status is memorized.
OFF ON AUTO control Manual FRE status is memorized.
OFF OFF AUTO control AUTO control

ATC-58
TROUBLE DIAGNOSIS

1. CHECK POWER SUPPLY CIRCUIT FOR UNIFIED METER AND A/C AMP.
1. Disconnect unified meter and A/C amp. connector.
2. Check voltage between unified meter and A/C amp. harness
connector M42 terminals 21, 22 and 35, unified meter and A/C
amp. harness connector M45 terminal 46 and ground.
OK or NG
OK >> GO TO 2.
NG >> Check 10A and 15A fuses [Nos. 6, 10, 11, 12 and 19, located in the fuse block (J/B)]. Refer to PG-
79, "FUSE BLOCK - JUNCTION BOX (J/B)" .

If fuses are OK, check harness for open circuit. Repair or replace if necessary.

If fuses are NG, harness for short circuit and replace fuse.
2. CHECK GROUND CIRCUIT FOR UNIFIED METER AND A/C AMP.
1. Turn ignition switch OFF.
2. Check continuity between unified meter and A/C amp. harness
connector M42 terminal 29, 30 and ground.
OK or NG
OK >> Replace unified meter and A/C amp.
NG >> Repair harness or connector.
Terminals Ignition switch position
(+)
(-) OFF ACC ON Unified
meter and
A/C amp.
connectorTerminal No.
M42 21
GroundBattery volt-
ageBattery volt-
ageBattery
voltage
M42 22 Approx. 0 V Approx. 0 VBattery
voltage
M42 35 Approx. 0 VBattery volt-
ageBattery
voltage
M45 46 Approx. 0 V Approx. 0 VBattery
voltage
RJIA1984E
29, 30 – Ground : Continuity should exist.
RJIA1985E

TROUBLE DIAGNOSIS
ATC-59
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LAN System CircuitBJS000G0
SYMPTOM: Mode door motor, intake door motor and/or air mix door motor(s) does not operate normally.
DIAGNOSIS PROCEDURE FOR LAN CIRCUIT
1. CHECK POWER SUPPLY FOR UNIFIED METER AND A/C AMP.
1. Turn ignition switch ON.
2. Check voltage between unified meter and A/C amp. harness
connector M45 terminal 54 and ground.
OK or NG
OK >> GO TO 2.
NG >> Replace unified meter and A/C amp.
2. CHECK SIGNAL FOR UNIFIED METER AND A/C AMP.
Confirm A/C LAN signal between unified meter and A/C amp. har-
ness connector M45 terminal 43 and ground using an oscilloscope.
OK or NG
OK >> GO TO 3.
NG >> Replace unified meter and A/C amp.
RJIA1775E
54 – Ground : Battery voltage
RJIA1986E
Terminals
Voltag e (+)
(-) Unified meter
and A/C amp.
connectorTe r m i n a l N o .
M45 43 Ground
RJIA1987E
SJIA1453J

ATC-60
TROUBLE DIAGNOSIS

3. CHECK POWER SUPPLY FOR EACH DOOR MOTOR
Check voltage between each door motor harness connector M252,
M253, M254 and M255 terminal 1 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.
4. CHECK SIGNAL FOR EACH DOOR MOTOR
Confirm A/C LAN signal between each door motor harness connec-
tor terminal 3 and ground using an oscilloscope.
OK or NG
OK >> GO TO 5.
NG >> Repair harness or connector.
5. CHECK MOTOR GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect each door motor connector.
3. Check continuity between each door motor harness connector
M252, M253, M254 and M255 terminal 2 and ground.
OK or NG
OK >> GO TO 6.
NG >> Repair harness or connector.1 – Ground : Battery voltage
RJIA1988E
Door
motorTe r m i n a l s
Voltage (+)
(-)
Con-
nectorTerminal
No.
Mode M252 3
Ground Air mix
(Driver
side)M253 3
Air mix
(Passen-
ger side)M254 3
Intake M255 3
RJIA1989E
SJIA1453J
2 – Ground : Continuity should exist.
RJIA1990E

TROUBLE DIAGNOSIS
ATC-75
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1. CHECK POWER SUPPLY FOR BLOWER MOTOR
1. Disconnect blower motor connector.
2. Turn ignition switch ON.
3. Check voltage between blower motor harness connector M48
terminal 1 and ground.
OK or NG
OK >> GO TO 2.
NG >> Check power supply circuit and 15A fuses [Nos. 10 and
11, located in the fuse block (J/B)]. Refer to PG-79,
"FUSE BLOCK - JUNCTION BOX (J/B)" .

If fuses are OK, check harness for open circuit. Repair or replace if necessary.

If fuses are NG, check harness for short circuit and replace fuse.
2. CHECK FAN FEEDBACK CIRCUIT
1. Turn ignition switch OFF.
2. Reconnect blower motor connector.
3. Turn ignition switch ON.
4. Check voltage between unified meter and A/C amp. harness
connector M45 terminal 47 and ground.
OK or NG
OK >> GO TO 3.
NG >> GO TO 9.
3. CHECK BLOWER MOTOR
Check blower motor. Refer to AT C - 7 7 , "
Blower Motor" .
OK or NG
OK >> GO TO 4.
NG >> Replace blower motor.
4. CHECK POWER SUPPLY FOR FAN CONTROL AMP.
1. Turn ignition switch ON.
2. Check voltage between fan control amp. harness connector
M86 terminal 3 and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair harness or connector.1 – Ground : Battery voltage
RJIA2860E
47 – Ground : Battery voltage.
RJIA3266E
Terminals
Condition Voltage (+)
(−)
Fan control
amp. connectorTe r m i n a l N o .
M86 3 GroundFan speed: 1st
speedApprox. 8 V
RJIA2862E

ATC-80
TROUBLE DIAGNOSIS

3. CHECK CIRCUIT CONTINUITY BETWEEN IPDM E/R AND COMPRESSOR
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector and compressor connector.
3. Check continuity between IPDM E/R harness connector E8 ter-
minal 33 and compressor harness connector F2 terminal 1.
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.
4. CHECK MAGNET CLUTCH CIRCUIT
Check for operation sound when applying battery voltage direct cur-
rent to terminal.
OK or NG
OK >> 1. Replace IPDM E/R.
2. Go to self-diagnosis procedure AT C - 4 7 , "
FUNCTION
CONFIRMATION PROCEDURE" and perform self-
diagnosis STEP-4. Confirm that magnet clutch opera-
tion normal.
NG >> 1. Replace compressor. Refer to ATC-134, "
Removal
and Installation of Compressor" .
2. Go to self-diagnosis procedure AT C - 4 7 , "
FUNCTION
CONFIRMATION PROCEDURE" and perform self-diagnosis STEP-4. Confirm that magnet
clutch operation normal.
5. CHECK BCM INPUT (COMPRESSOR ON) SIGNAL
Check compressor ON/OFF signal. Refer to AT C - 3 4 , "
CONSULT-II
Function (BCM)" .
OK or NG
OK >> GO TO 8.
NG >> GO TO 6.
6. CHECK CIRCUIT CONTINUITY BETWEEN BCM AND UNIFIED METER AND A/C AMP.
1. Turn ignition switch OFF.
2. Disconnect BCM connector and unified meter and A/C amp.
connector.
3. Check continuity between BCM harness connector M3 terminal
27 and unified meter and A/C amp. harness connector M45 ter-
minal 42.
OK or NG
OK >> GO TO 7.
NG >> Repair harness or connector.33 – 1 : Continuity should exist.
RJIA2004E
RJIA2005E
A/C SW ON : AIR COND SW ON
A/C SW OFF : AIR COND SW OFF
R J I A 1111 E
27 – 42 : Continuity should exist.
RJIA2006E

ATC-124
AIR MIX DOOR MOTOR

AIR MIX DOOR MOTOR PFP:27732
Removal and InstallationBJS000HK
REMOVAL
Driver Side
1. Set the temperature (driver side) at 18°C, and then disconnect the battery cable from the negative termi-
nal.
2. Remove instrument driver lower panel. Refer to IP-10, "
INSTRUMENT PANEL ASSEMBLY" .
3. Remove aspirator.
4. Remove mounting screws, and then remove air mix door motor.
5. Disconnect air mix door motor connector.
Passenger Side
1. Set the temperature (passenger side) at 18°C, and then disconnect the battery cable from the negative
terminal.
2. Remove blower unit. Refer to AT C - 11 3 , "
BLOWER UNIT" .
3. Remove mounting screws, and then remove air mix door motor.
4. Disconnect air mix door motor connector.
INSTALLATION
Installation is basically the reverse order of removal.
RJIA3307E
RJIA3308E

HEATER CORE
ATC-125
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HEATER COREPFP:27140
Removal and InstallationBJS000HL
REMOVAL
1. Set the temperature (passenger side) at 18°C, and then disconnect the battery cable from the negative
terminal.
2. Remove heater & cooling unit assembly. Refer to AT C - 11 9 , "
HEATER & COOLING UNIT ASSEMBLY" .
3. Remove mounting screws, and then remove air mix door motor
(passenger side).
4. Disconnect air mix door motor connector.
5. Remove mounting screws, and then remove foot duct (right).
6. Remove mounting screws, and then remove heater core cover.
7. Remove heater pipe support and heater pipe grommet.
8. Slide heater core (shown in the figure) to rightward.
INSTALLATION
Installation is basically the reverse order of removal.
RJIA3308E
1. Heater & cooling unit 2. Heater core cover 3. Foot duct (right)
4. Screw 5. Heater core 6. Air mix door motor (passenger side)
7. Heater pipe grommet 8. Heater pipe support
SJIA0992E