ECU NISSAN TEANA 2014 Service Manual

PRECAUTIONSHAC-5
< PRECAUTION > [AUTOMATIC AIR CONDITIONER]
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000009951773
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty of injury to the driver and front passenger for certain
types of collision. Information necessary to service t he system safely is included in the SR and SB section of
this Service Manual.
WARNING:
• To avoid rendering the SRS inoper ative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintentional act ivation of the system. For removal of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipm ent on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Un it or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or el ectric power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor( s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers , always switch the Ignition OFF, disconnect the
battery and wait at least three mi nutes before performing any service.
Precaution for WorkINFOID:0000000009463086
• When removing or disassembling each component, be ca reful not to damage or deform it. If a component
may be subject to interference, be sure to protect it with a shop cloth.
• When removing (disengaging) components with a screwdriver or similar tool, be sure to wrap the component with a shop cloth or vinyl tape to protect it.
• Protect the removed parts with a shop cloth and prevent them from being dropped.
• Replace a deformed or damaged clip.
• If a part is specified as a non-reusabl e part, always replace it with a new one.
• Be sure to tighten bolts and nuts securely to the specified torque.
• After installation is complete, be sure to check that each part works properly.
• Follow the steps below to clean components:
- Water soluble dirt:
• Dip a soft cloth into lukewarm water, wring the water out of the cloth and wipe the dirty area.
• Then rub with a soft, dry cloth.
-Oily dirt:
• Dip a soft cloth into lukewarm water with mild detergent (concentration: within 2 to 3%) and wipe the dirty area.
• Then dip a cloth into fresh water, wring the water out of the cloth and wipe the detergent off.
• Then rub with a soft, dry cloth.
- Do not use organic solvent such as thinner, benzene, alcohol or gasoline.
- For genuine leather seats, use a genuine leather seat cleaner.
Working with HFC-134a (R-134a)INFOID:0000000009463087
WARNING:
• CFC-12 (R-12) refrigerant and HFC-134a (R-134a) refr igerant are not compatible. If the refrigerants
are mixed compressor failure is likely to occur. Refer to HA-25, "Inspection"
. To determine the purity
of HFC-134a (R-134a) in the vehicle and recovery tank, use Refrigerant Recovery/Recycling Recharg-
ing equipment and Refrigerant Identifier.
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HAC-24
< SYSTEM DESCRIPTION >[AUTOMATIC AIR CONDITIONER]
DIAGNOSIS SYSTEM
(A/C AUTO AMP.)
DIAGNOSIS SYSTEM (A/C AUTO AMP.)
CONSULT Function (HVAC)INFOID:0000000009463103
CAUTION:
After disconnecting the CONSULT vehicle interface (VI) from the data link connector, the ignition must
be cycled OFF → ON (for at least 5 seconds) → OFF. If this step is not performed, the BCM may not go
to ”sleep mode”, potentially causing a di scharged battery and no-start condition.
CONSULT can display each diagnosis item us ing the diagnosis test modes as shown.
CONSULT application items
SELF-DIAGNOSTIC RESULT
Refer to HAC-31, "DTC Index".
Display Item List
Diagnosis mode Description
Self-Diagnostic Result Displays the diagnosis results judged by A/C auto amp.
Data Monitor Displays A/C auto amp. input/output data in real time.
Work support Changes the setting for each system function.
Active Test The signals used to activate each device are forcibly supplied from A/C auto amp.
ECU Identification Displays the A/C auto amp. number.
Configuration • The vehicle specification can be read and saved.
• The vehicle specification can be written when replacing A/C auto amp.
DTC Items
(CONSULT screen terms) Diagnostic item is detected when... Possible cause
U1000 CAN COMM CIRCUIT When A/C auto amp. is not transmitting
or receiving CAN communication signal
for 2 or more seconds. CAN communication system
U1010 CONTROL UNIT (CAN) When detecting error during the initial
diagnosis of CAN controller of A/C auto
amp. A/C auto amp.
B257B AMB TEMP SEN (SHORT) Detected temperature at ambient sen-
sor 55 °C (131 °F) or more • Ambient sensor
• A/C auto amp.
• Harness and connector (Ambient sensor circuit is open,
or there is a short in the circuit)
B257C AMB TEMP SEN (OPEN)
Detected temperature at ambient sen-
sor −30 °C ( −22 °F) or less
B2578 IN-CAR SENSOR (OUT OF RANGE
[LOW]) Detected temperature at in-vehicle sen-
sor 55 °C (131 °F) or more • In-vehicle sensor
• A/C auto amp.
• Harness and connector (In-vehicle sensor circuit is open,
or there is a short in the circuit)
B2579
IN-CAR SENSOR (OUT OF RANGE
[HI]) Detected temperature at in-vehicle sen-
sor −30 °C ( −22 °F) or less
B2581 EVAP TEMP SEN (SHORT) Detected temperature at intake sensor
55 °C (131 °F) or more • Intake sensor
• A/C auto amp.
• Harness and connector
(Intake sensor circuit is open, or
there is a short in the circuit)
B2582 EVAP TEMP SEN (OPEN)
Detected temperature at intake sensor
− 30 °C ( −22 °F) or less
B2630
*SUNLOAD SEN (SHORT) Detected calorie at sunload sensor
1395 w/m2 (1200 kcal/m2·h) • Sunload sensor
• A/C auto amp.
• Harness and connector (Sunload sensor circuit is open,
or there is a short in the circuit)
B2631
*SUNLOAD SEN (OPEN) Detected calorie at sunload sensor 0 w/
m2 (0 kcal/m2·h)
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DIAGNOSIS SYSTEM (A/C AUTO AMP.)HAC-27
< SYSTEM DESCRIPTION > [AUTOMATIC AIR CONDITIONER]
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NOTE:
Perform the inspection of each output device after starting the engine, because the A/C compressor has been operating.
CONFIGURATION
Configuration includes the following functions.
CAUTION:
Use ‘‘Manual Configuration’’ only when ‘‘TY PE ID’’ of A/C auto amp. cannot be read.
Blower motor duty ratio 30% 30% 60% HI HI 60% HI
A/C compressor (Mag-
net clutch) ON ON ON OFF OFF ON ON
ECV duty 100% 100% 50% 0% 0% 100% 100% Te s t i t e m
MODE 1 MODE 2 MODE 3 MODE 4 MODE 5 MODE 6 MODE 7
Function Description
Read/Write Configuration Before replacing ECU
Allows the reading of vehicle specification (Type ID) written in A/C
auto amp. to store the specification in CONSULT.
After replacing ECU Allows the writing of vehicle information (Type ID) stored in CON-
SULT into the A/C auto amp.
Manual Configuration Allows the writing of vehicle specification (Type ID) into the A/C
auto amp. by hand.
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HAC-28
< ECU DIAGNOSIS INFORMATION >[AUTOMATIC AIR CONDITIONER]
A/C AUTO AMP.
ECU DIAGNOSIS INFORMATION
A/C AUTO AMP.
Reference ValueINFOID:0000000009463104
VALUES ON THE DIAGNOSIS TOOL
TERMINAL LAYOUT
PHYSICAL VALUES
Monitor item Condition Value/Status
AMB TEMP SEN Ignition switch ON — 22 - 131 °F ( −30 - 55 °C)
IN-VEH TEMP Ignition switch ON — 22 - 131 °F ( −30 - 55 °C)
INT TEMP SEN Ignition switch ON — 22 - 131 °F ( −30 - 55 °C)
SUNLOAD SEN Ignition switch ON — 0 - 1395 w/m
2
(0 - 1200 kcal/m2·h)
AMB SEN CAL Ignition switch ON — 22 -131 °F ( −30 - 55 °C)
IN-VEH CAL Ignition switch ON — 22 -131 °F ( −30 - 55 °C)
INT TEMP CAL Ignition switch ON — 22 -131 °F ( −30 - 55 °C)
SUNL SEN CAL Ignition switch ON — 0 - 1395 w/m
2
(0 - 1200 kcal/m2·h)
COMP REQ SIG Engine: Run at idle after
warming up A/C switch: ON
(A/C compressor operation
status) On
A/C switch: OFF Off
FAN REQ SIG Engine: Run at idle after
warming up Blower fan: ON On
Blower fan: OFF Off
FAN DUTY Engine: Run at idle after
warming up Blower fan: ON 25 - 85%
Blower fan: OFF 0%
XM Ignition switch ON — −100 - 155
PA TARGET A/TEMP Ignition switch ON — Value according to target air
flow temperature (passen-
ger side)
ENG COOL TEMP Ignition switch ON — Values according to coolant
temperature
VEHICLE SPEED Driving — Equivalent to speedometer
reading
ALIIA0579ZZ
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A/C AUTO AMP.HAC-29
< ECU DIAGNOSIS INFORMATION > [AUTOMATIC AIR CONDITIONER]
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Te r m i n a l N o . (Wire color) Description
ConditionVa l u e
(Approx.)
+ − Signal name Input/
Output
1
(L) —CAN-H Input/
Output ——
2
(B) —Ground — — —
3
(SB) Ground Battery power supply Input Ignition switch OFF Battery voltage
4
(BR) Ground TX FR Output Ignition switch ON 0 – 5 V
7
(L) Ground Ambient sensor signal Input Ignition switch ON 0 – 4.8 V
Output voltage varies with ambi- ent temperature
8
*1
(BR) Ground
Heated steering wheel
switch signal InputIgnition
switch ON Heated steer-
ing wheel
switch: While
pressing 0 V
Other than the
above 12 V
9
(G) Ground Sunload sensor signal Input Ignition switch ON 0 – 4.8 V
Output voltage varies with sun- load amount
13
(P) Ground IGN 2 Input Ignition switch ON Battery voltage
15
(Y) Ground RR DEF switch Output Defroster
switch OFF 0 V
ON 12 V
16
(G) Ground Each door motor LIN signal
Input/
Output Ignition switch ON
17
(W) GroundEach door motor power
supply Output Ignition switch ON 12 V
18
(P) Ground
Front blower motor control
signal Output• Ignition switch ON
• Front fan speed: 1st
speed (manual)
20
*1
(P) Ground
Heated steering wheel relay
control signal OutputIgnition
switch ON Within 30 sec-
onds after
turning ON
the heated
steering
switch. 0 V
Other than the
above 12 V
21
(P) —CAN-L Input/
Output ——
SJIA1453J
JSIIA0096ZZ
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HAC-30
< ECU DIAGNOSIS INFORMATION >[AUTOMATIC AIR CONDITIONER]
A/C AUTO AMP.
*1: With heated steering wheel
DTC Inspection Priority ChartINFOID:0000000009463105
If some DTCs are displayed at the same time, perfo
rm inspections one by one based on the following priority
chart.
22
(B) —Ground — — —
23
(G) Ground Ignition power supply Input Ignition switch ON Battery voltage
24
(V) Ground RX FR Input Ignition switch ON 0 – 5 V
26
(W) — Sensor ground — — —
27
(G) Ground In-vehicle sensor signal Input Ignition switch ON 0 – 4.8 V
Output voltage varies with in-vehi-
cle temperature
28
(P) Ground Intake sensor signal Input Ignition switch ON 0 – 4.8 V
Output voltage varies with front evaporator fin temperature
35
(P) Ground RR DEF feedback Input
Defroster
switch OFF 0 V
ON 12 V
37
(B) — ACTR Ground — — —
40
(G) Ground
ECV (electrical control
valve) control signal Output• Ignition switch ON
• Active test (HVAC test):
MODE 1
Te r m i n a l N o .
(Wire color) Description
ConditionVa l u e
(Approx.)
+ − Signal name Input/
Output
SJIA1607E
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A/C AUTO AMP.HAC-31
< ECU DIAGNOSIS INFORMATION > [AUTOMATIC AIR CONDITIONER]
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DTC IndexINFOID:0000000009463106
Priority Detected items (DTC) 1 • U1000: CAN COMM CIRCUIT
• U1010: CONTROL UNIT (CAN)
2 • B257B: AMB TEMP SEN (SHORT)
• B257C: AMB TEMP SEN (OPEN)
• B2578: IN CAR SENSOR (OUT OF RANGE[LOW])
• B2579: IN CAR SENSOR (OUT OF RANGE[HI])
• B2581: EVAP TEMP SEN (SHORT)
• B2582: EVAP TEMP SEN (OPEN)
• B2630: SUNLOAD SEN (SHORT)
• B2631: SUNLOAD SEN (OPEN)
• B2632: DR AIRMIX ACTR (SHORT)
• B2633: DR AIRMIX ACTR (OPEN)
• B2634: PASS AIRMIX ACTR (SHORT)
• B2635: PASS AIRMIX ACTR (OPEN)
• B2636: DR VENT DOOR FAIL
• B2637: DR B/L DOOR FAIL
• B2638: DR D/F1 DOOR FAIL
• B2639: DR DEF DOOR FAIL
• B263D: FRE DOOR FAIL
• B263E: 20P FRE DOOR FAIL
• B263F: REC DOOR FAIL
• B2654: D/F2 DOOR FAIL
• B2655: B/L2 DOOR FAIL
• B27B0: A/C AUTO AMP.
DTC Items
(CONSULT screen terms) Reference
U1000 CAN COMM CIRCUIT HAC-55, "DTC Logic"
U1010 CONTROL UNIT (CAN)HAC-56, "DTC Logic"
B257B AMB TEMP SEN (SHORT) HAC-60, "DTC Logic"
B257C AMB TEMP SEN (OPEN) HAC-60, "DTC Logic"
B2578 IN CAR SENSOR (OUT OF RANGE [LOW])HAC-57, "DTC Logic"
B2579 IN CAR SENSOR (OUT OF RANGE [HI])HAC-57, "DTC Logic"
B2581 EVAP TEMP SEN (SHORT)HAC-63, "DTC Logic"
B2582 EVAP TEMP SEN (OPEN)HAC-63, "DTC Logic"
B2630*SUNLOAD SEN (SHORT)HAC-66, "DTC Logic"
B2631*SUNLOAD SEN (OPEN)HAC-66, "DTC Logic"
B2632 DR AIRMIX ACTR (SHORT) HAC-69, "DTC Logic"
B2633 DR AIRMIX ACTR (OPEN)HAC-69, "DTC Logic"
B2634 PASS AIRMIX ACTR (SHORT)HAC-71, "DTC Logic"
B2635 PASS AIRMIX ACTR (OPEN)HAC-71, "DTC Logic"
B2636 DR VENT DOOR FAILHAC-73, "DTC Logic"
B2637 DR B/L DOOR FAILHAC-73, "DTC Logic"
B2638 DR D/F1 DOOR FAILHAC-73, "DTC Logic"
B2639 DR DEF DOOR FAILHAC-73, "DTC Logic"
B263D FRE DOOR FAIL HAC-75, "DTC Logic"
B263E 20P FRE DOOR FAILHAC-75, "DTC Logic"
B263F REC DOOR FAILHAC-75, "DTC Logic"
B2654 D/F2 DOOR FAILHAC-73, "DTC Logic"
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HAC-32
< ECU DIAGNOSIS INFORMATION >[AUTOMATIC AIR CONDITIONER]
A/C AUTO AMP.
*: Perform self-diagnosis under direct sunlight. When performing indoors, aim a light (more than 60 W) at sunload sensor, other
wise self-
diagnosis reports an error even though the sunload sensor is functioning normally. B2655 B/L2 DOOR FAIL
HAC-73, "DTC Logic"
B27B0 A/C AUTO AMP. HAC-77, "DTC Logic"
DTCItems
(CONSULT screen terms) Reference
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ECM, IPDM E/R, BCMHAC-33
< ECU DIAGNOSIS INFORMATION > [AUTOMATIC AIR CONDITIONER]
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ECM, IPDM E/R, BCM
List of ECU ReferenceINFOID:0000000009463107
ECU Reference
ECM EC-88, "Reference Value"
(QR25DE)
EC-613, "Reference Value"
(VQ35DE)
EC-101, "Fail Safe"
(QR25DE)
EC-627, "Fail-safe"
(VQ35DE)
EC-104, "DTC Inspection Priority Chart"
(QR25DE)
EC-629, "DTC Inspection Priority Chart"
(VQ35DE)
EC-105, "DTC Index"
(QR25DE)
EC-630, "DTC Index"
(VQ35DE)
IPDM E/R PCS-12, "Reference Value"
PCS-19, "Fail Safe"
PCS-20, "DTC Index"
BCMBCS-31, "Reference Value"BCS-50, "Fail Safe"
BCS-50, "DTC Inspection Priority Chart"
BCS-52, "DTC Index"
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HAC-52
< BASIC INSPECTION >[AUTOMATIC AIR CONDITIONER]
ADDITIONAL SERVICE WHEN REPLACI
NG CONTROL UNIT (A/C AUTO AMP.)
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT (A/C AUTO
AMP.)
DescriptionINFOID:0000000009463116
BEFORE REPLACEMENT
When replacing A/C auto amp., save or print current v ehicle specification with CONSULT configuration before
replacement.
NOTE:
If “Before Replace ECU” cannot be used, use the “After Replace ECU” or “Manual Configuration” after replac-
ing A/C auto amp.
AFTER REPLACEMENT
CAUTION:
• When replacing A/C auto amp., you must perform “After Replace ECU” with CONSULT.
- Complete the procedure of “After Replace ECU” in order.
- If you set incorrect “After Replace ECU”, incidents might occur.
- Configuration is different for each vehicle mode l. Confirm configuration of each vehicle model.
Work ProcedureINFOID:0000000009463117
1.SAVING VEHICLE SPECIFICATION
CONSULT
Enter "Re/Programming, Configuration" and perform “Before Replace ECU” to save or print current vehicle
specification.
NOTE:
If “Before Replace ECU” cannot be used, use the "After Replace ECU" or "Manual Configuration" after replac-
ing A/C auto amp.
>> GO TO 2.
2.REPLACE A/C AUTO AMP.
Replace A/C auto amp. Refer to HAC-102, "Removal and Installation"
.
>> GO TO 3.
3.WRITING VEHICLE SPECIFICATION
CONSULT
1. Enter "Re/Programming, Configuration".
2. If “Before Replace ECU” operation was performed, automatically an "Operation Log Selection" screen will
be displayed. Select the applicable file from the "S aved Data List" and press “Confirm” to write vehicle
specification. Refer to HAC-53, "Work Procedure"
.
3. If “Before Replace ECU” operation was not performed, select "After Replace ECU" or "Manual Configura-
tion" to write vehicle specification. Refer to HAC-53, "Work Procedure"
.
>> GO TO 4.
4.OPERATION CHECK
Check that the operation of the A/C auto amp. is normal.
>> Work End.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM