Nissan Titan A60. Instruction — part 617
POWER SUPPLY AND GROUND CIRCUIT FOR CONTROLLER
HAC-151
< DTC/CIRCUIT DIAGNOSIS >
[MANUAL A/C (TYPE 1)]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
SYMPTOM: A/C system does not come on.
1.
CHECK POWER SUPPLY CIRCUITS FOR FRONT AIR CONTROL
1. Turn ignition switch ON.
2. Check voltage between front air control harness connector
M180 (B) terminal 15 and M181 (A) terminal 27, and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Check 10A fuses [Nos. 8 and 19, located in the fuse block (J/B)]. Refer to
.
• If fuses are OK, check harness for open circuit. Repair or replace as necessary.
• If fuses are NG, replace fuse and check harness for short circuit. Repair or replace as neces-
sary.
2.
CHECK GROUND CIRCUIT FOR FRONT AIR CONTROL
1. Turn ignition switch OFF.
2. Disconnect front air control connectors.
3. Check continuity between front air control harness connector
M181 terminal 35 and ground.
Is the inspection result normal?
OK
>> Replace front air control. Refer to
NG
>> Repair harness or connector.
AWIIA0438GB
Terminals
Ignition switch position
(+)
(-)
OFF
ACC
ON
Front air
control
connector
Terminal No.
M180
15
Ground
Approx. 0V
Approx. 0V
Battery
voltage
M181
27
Battery
voltage
Battery
voltage
Battery
voltage
AWIIA1047ZZ
35 - Ground
: Continuity should exist.
AWIIA0440ZZ
HAC-152
< ECU DIAGNOSIS INFORMATION >
[MANUAL A/C (TYPE 1)]
MANUAL A/C IDENTIFICATION TABLE
ECU DIAGNOSIS INFORMATION
MANUAL A/C IDENTIFICATION TABLE
Application Table
INFOID:0000000006164784
Instruction A/C Type
Description
Visual Identification
Instruction A/C (Type 1)
Two Control Dial System
Instruction A/C (Type 2)
Three Control Dial System
[with variable blower control
(VBC)]
AWIIA0481ZZ
AWIIA0478ZZ
AIR CONDITIONER CONTROL
HAC-153
< ECU DIAGNOSIS INFORMATION >
[MANUAL A/C (TYPE 1)]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
AIR CONDITIONER CONTROL
Front Air Control Terminals Reference Values
INFOID:0000000006164785
Measure voltage between each terminal and ground by following
Terminals and Reference Value for front air control (1).
FRONT AIR CONTROL HARNESS CONNECTOR TERMINAL LAYOUT
TERMINALS AND REFERENCE VALUES FOR FRONT AIR CONTROL
AWIIA0436ZZ
AWIIA0441ZZ
Terminal
No.
Wire
color
Item
Ignition
switch
Condition
Voltage (V)
(Approx.)
3
P
V ref ACTR (ground)
ON
-
5V
4
W/R
Compressor ON signal
ON
A/C switch OFF
5V
ON
A/C switch ON
0V
5
L/R
Fan ON signal
ON
Blower switch OFF
5V
ON
Blower switch ON
0V
6
SB
Air mix door motor feedback
ON
-
0 - 5V
7
GR
Mode door motor feedback
ON
-
0 - 5V
8
R/L
Illumination +
ON
Park lamps ON
Battery voltage
9
BR
Illumination -
-
Park lamps ON
10
LG/B
Defroster door motor feedback
ON
-
0 - 5V
11
L/B
Intake sensor
ON
-
0 - 5V
13
G/R
Variable blower control
ON
-
0 - 5V
15
Y/G
Power supply for IGN
ON
-
Battery voltage
16
Y/B
Rear defogger request *1
ON
-
Battery voltage
17
W/G
Air mix door motor CW
ON
Clockwise rotation
Battery voltage
18
G
Air mix door motor CCW
ON
Counterclockwise rotation
Battery voltage
PIIA2344E
H
A
C
- 1 5 4
< ECU DIAGNOSIS INFORMATION >
[MANUAL A/C (TYPE 1)]
AIR CONDITIONER CONTROL
*1: If equipped
19
BR/W
Mode door motor CW
ON
Clockwise rotation
Battery voltage
20
P/L
Mode door motor CCW
ON
Counterclockwise rotation
Battery voltage
21
G/B
Intake door motor CCW
ON
Counterclockwise rotation
Battery voltage
22
O
Intake door motor CW
ON
Clockwise rotation
Battery voltage
23
LG
Defroster door motor CW
ON
Clockwise rotation
Battery voltage
24
P/B
Defroster door motor CCW
ON
Counterclockwise rotation
Battery voltage
25
P
Ambient sensor
ON
-
0 - 5V
26
V/R
Sensor ground
ON
-
0V
27
Y/R
Power supply for BAT
-
-
Battery voltage
28
Y
V ref ACTR (5V)
ON
-
0 - 5V
35
B
Ground
-
-
0V
36
P
CAN-L
ON
-
0 - 5V
37
L
CAN-H
ON
-
0 - 5V
41
Y/L
Water valve
ON
Water valve open
Battery voltage
Water valve closed
0V
42
W/G
Water valve
ON
Water valve open
0V
Water valve closed
Battery voltage
Terminal
No.
Wire
color
Item
Ignition
switch
Condition
Voltage (V)
(Approx.)
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