fuse NISSAN 350Z 2007 Z33 Automatic Air Conditioner Workshop Manual

ATC-10
PRECAUTIONS
Revision: 2006 November2007 350Z
O-RING AND REFRIGERANT CONNECTION
CAUTION:
The new and former refrigerant connections use different O-ring configurations. Never confuse O-
rings since they are not interchangeable. If a wrong O-ring is installed, refrigerant may leak at the con-
nection.
O-Ring Part Numbers and Specifications
PJIA0173E
Connection type Piping connection point Part number QTY O-ring size
NewLow-pressure pipe 2 to low-pressure pipe 1 (One-touch
joint)92473 N8221 2 16
Low-pressure pipe 2 to low-pressure flexible hose (One-
touch joint)92473 N8221 2 16
High-pressure pipe 1 to high-pressure pipe 2 (One-touch
joint)92471 N8221 2 8
Condenser to high-pressure flexible hose (One-touch joint) 92472 N8221 2 12
Condenser to high-pressure pipe 1 (One-touch joint) 92471 N8221 2 8
Low-pressure pipe 1 to expansion valve 92473 N8210 1 16
High-pressure pipe 2 to expansion valve 92471 N8210 1 8
Compressor to low-pressure flexible hose 92474 N8210 1 19
Compressor to high-pressure flexible hose 92472 N8210 1 12
Liquid tank to condenser pipeInlet
92471 N82101
8
Outlet 1

TROUBLE DIAGNOSIS
ATC-55
C
D
E
F
G
H
I
K
L
MA
B
AT C
Revision: 2006 November2007 350Z
Potentio Temperature Control (PTC)
The PTC is built into the A/C controller. It can be set at an interval of
1°C (2.0°F) in the 18°C (60°F) to 32°C (90°F) temperature range by
turning the temperature control dial.
DIAGNOSIS PROCEDURE FOR A/C SYSTEM
SYMPTOM: A/C system does not come on.
1. CHECK POWER SUPPLY CIRCUIT FOR UNIFIED METER AND A/C AMP.
1. Disconnect unified meter connector and A/C amp. connector.
2. Check voltage between unified meter and A/C amp. harness
connector M49 terminal 21 and 22, unified meter and A/C amp.
harness connector M50 terminal 46 and ground.
OK or NG
OK >> GO TO 2.
NG >> Check 10A and 15A fuses [Nos. 10, 11, 12 and 19, located in the fuse block (J/B)]. Refer to PG-
85, "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.
SJIA1124E
RJIA1374E
Terminals Ignition switch position
(+)
(−)OFF ACC ON Unified
meter and
A/C amp.
connectorTerminal No.
M49 21
GroundBattery
voltageBattery
voltageBattery
voltage
M49 22 Approx. 0 V Approx. 0 VBattery
voltage
M50 46 Approx. 0 VBattery
voltageBattery
voltage
RJIA2121E

ATC-72
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
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 M62
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-85,
"FUSE BLOCK - JUNCTION BOX (J/B)" .

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

If fuse are NG, check harness for short circuit and replace fuse.
2. CHECK GROUND CIRCUIT FOR BLOWER MOTOR
1. Turn ignition switch OFF.
2. Check continuity between blower motor harness connector M62
terminal 3 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3. CHECK CIRCUIT CONTINUITY BETWEEN BLOWER MOTOR AND UNIFIED METER AND A/C AMP.
1. Disconnect unified meter connector and A/C amp. connector.
2. Check continuity between blower motor harness connector M62
terminal 2 and unified meter and A/C amp. harness connector
M50 terminal 53.
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.1 – Ground : Battery voltage
RJIA1997E
3 – Ground : Continuity should exist.
RJIA1998E
2 – 53 : Continuity should exist.
RJIA1999E

ATC-76
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
1. CHECK AMBIENT SENSOR CIRCUIT AND INTAKE SENSOR CIRCUIT
Check ambient sensor and intake sensor. Refer to AT C - 4 6 , "
FUNCTION CONFIRMATION PROCEDURE" ,
see No. 9.
OK or NG
OK >> GO TO 2.
NG >>

Malfunctioning ambient sensor: Refer to AT C - 9 2 , "Ambient Sensor Circuit" .

Malfunctioning intake sensor: Refer to ATC-100, "Intake Sensor Circuit" .
2. PERFORM AUTO ACTIVE TEST
Refer to PG-20, "
Auto Active Test" .
Dose the magnet clutch operate?
YES >>
WITH CONSULT-III: GO TO 5.

WITHOUT CONSULT-III: GO TO 6.
NO >> Check 10A fuse (No. 79, located in IPDM E/R), and GO TO 3. Refer to PG-23, "
IPDM E/R Termi-
nal Arrangement" .
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 F24 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 6 , "
FUNCTION
CONFIRMATION PROCEDURE" and preform self-
diagnosis STEP-4. Confirm that magnet clutch opera-
tion normal.
NG >> 1. Replace magnet clutch.
2. Go to self-diagnosis procedure AT C - 4 6 , "
FUNCTION
CONFIRMATION PROCEDURE" and preform 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 3 , "
CONSULT-III Function (BCM)" .
OK or NG
OK >> GO TO 8.
NG >> GO TO 6.
33 – 1 : Continuity should exist.
RJIA2004E
RJIA2005E
A/C SW ON : AIR COND SIG ON
A/C SW OFF : AIR COND SIG OFF