2014 NISSAN TEANA ECU

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
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

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
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

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"
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

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
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

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"
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

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

CONFIGURATION (HVAC)HAC-53
< BASIC INSPECTION > [AUTOMATIC AIR CONDITIONER]
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CONFIGURATION (HVAC)
DescriptionINFOID:0000000009463118
Vehicle specification needs to be written with CONSULT because it is not written after replacing A/C auto amp.
Configuration has three functions as follows:
CAUTION:
• When replacing A/C auto amp., you must perform “Select Saved Data List” or "After Replace ECU"
with CONSULT.
• Complete the procedure of “Select Saved Da ta List” or "After Replace ECU" in order.
• If you set incorrect “Select Saved Data List” or "After Replace ECU", incidents might occur.
• Configuration is different for each vehicle model. Confirm conf iguration of each vehicle model.
• Never perform “Select Saved Data List” or "A fter Replace ECU" except for new A/C auto amp.
Work ProcedureINFOID:0000000009463119
1.WRITING MODE SELECTION
CONSULT
Select “Reprogramming, Configuration” of A/C auto amp.
When writing saved data>>GO TO 2.
When writing manually>>GO TO 3.
2.PERFORM “SAVED DATA LIST”
CONSULT
Automatically “Operation Log Selection” window will disp lay if “Before Replace ECU” was performed. Select
applicable file from the “Saved Data List” and press “Confirm”.
>> Work End.
3.PERFORM “AFTER REPLACE ECU” OR “MANUAL CONFIGURATION”
CONSULT
1. Select “After Replace ECU” or “Manual Configuration”.
2. Identify the correct model and configuration list. Refer to HAC-54, "Configuration List"
.
3. Confirm and/or change setting value for each item.
CAUTION:
Thoroughly read and understand the vehicle speci fication. ECU control may not operate normally
if the setting is not correct.
4. Select “Next”. CAUTION:
Make sure to select “Next”, confirm each setting value and press “OK” even if the indicated con-
figuration of brand new A/C auto am p. is same as the desirable configuration. If not, configuration
which is set automatically by selecti ng vehicle model cannot be memorized.
5. When "Completed", select "End".
>> GO TO 4.
4.OPERATION CHECK
Confirm that each function controlled by A/C auto amp. operates normally.
Function Description
"Before Replace ECU" • Reads the vehicle configuration of current A/C auto amp.
• Saves the read vehicle configuration.
"After Replace ECU" Writes the vehicle configuration with manual selection.
"Select Saved Data List" Writes the vehicle configuration with saved data.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

HAC-54
< BASIC INSPECTION >[AUTOMATIC AIR CONDITIONER]
CONFIGURATION (HVAC)
>> Work End.
Configuration ListINFOID:0000000009463120
CAUTION:
Thoroughly read and understand the vehicle specifi cation. Incorrect settings may result in abnormal
control of ECU.
⇔ : Items which confirm vehicle specifications MANUAL SETTING ITEM
Items Setting value
HANDLE LHD ⇔ RHD
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM