Nissan Primera P11. Manual — part 474
WITH GASOLINE ENGINE
YHA235
BR
17C
G
BR
G
LG/R
G/B
2
3
1
5
G/B
G/B
1
*
LG/R
RFRL
ECM
2
*
LG/R
LG/R
: 7
: 4
1
*
: E65
: E42
: F70
:
F4
:
:
BR
12
BR
5H
,
2
*
: 13
: 9
GY
GY
BR
B
B
,
GY
,
B
M1
HA-A/C-08
10A
11
2
1
E19
M
B
M1
40A
f
E45
2
1
M
B
E28
B
E11
B
E37
SQ
GA
GA
SQ
F101
GA
SQ
GA
SQ
SQ
E94
GA
M70
E125
SQ
GA
GA
SQ
E127
SQ
GA
1
2
7
6
4
9
3
8
5
1 2
7
6
4
9
3
8
5
10
F70
F4
3
2
1
4 5 6 7
8
10
9
11 12 13 14 15 16
E125
E45
2
1
E19
E28
E94
E127
F101
3
1
2
5
IGNITION SWITCH
ON or START
FUSE BLOCK
(J/B)
BATTERY
Refer to EL-POWER.
COOLING
FAN
RELAY-1
COOLING
FAN
MOTOR-2
COOLING
FAN
MOTOR-1
REFER TO THE FOLLOWING
FUSE BLOCK - Junction Box (J/B)
FUSE BLOCK - Junction Box (J/B)
ELECTRICAL UNITS
: With GA engine
: With SR engine or QG engine
TROUBLE DIAGNOSES
AUTO
Wiring Diagram — A/C — (Cont’d)
HA-49
WITH DIESEL ENGINE
YHA344
IGNITION SWITCH
ON or START
FUSE
BLOCK (J/B)
BATTERY
Refer to
EL-POWER
COOLING
FAN
MOTOR-1
COOLING
FAN
RELAY-2
COOLING
FAN
RELAY-1
COOLING
FAN
RELAY-3
To HA-A/C-07
TRIPLE-
PRESSURE
SWITCH
COOLING
FAN MOTOR-2
To HA-A/C-05
REFER TO THE FOLLOWING
FUSE BLOCK - Junction Box (J/B)
ELECTRICAL UNITS
NORMAL
HIGH
LOW
LOW
HIGH
ECM
TROUBLE DIAGNOSES
AUTO
Wiring Diagram — A/C — (Cont’d)
HA-50
Main Power Supply and Ground Circuit
Check
POWER SUPPLY CIRCUIT CHECK FOR AUTO A/C
SYSTEM
Check power supply circuit for auto air conditioning system.
Refer to “POWER SUPPLY ROUTING” in EL section and Wir-
ing Diagram.
A/C CONTROL PANEL
Check power supply circuit for A/C control panel unit with igni-
tion switch ON.
1. Disconnect A/C control panel harness connector.
2. Connect voltmeter from harness side.
3. Measure voltage across terminal No.
p
1
and body ground.
Voltmeter terminal
Voltage
!
@
p
1
Body ground
Approx. 12V
Check body ground circuit for A/C control panel with ignition
switch OFF.
1. Disconnect A/C control panel harness connector.
2. Connect ohmmeter from harness side.
3. Check for continuity between terminal No.
p
2
,
p
8
,
p
14
,
p
20
and body ground.
Ohmmeter terminal
Continuity
!
@
p
2
Body ground
Yes
p
8
p
14
p
20
AUTO AMP. CHECK
Check power supply circuit for auto amp. with ignition switch ON.
1. Disconnect auto amp. harness connector.
2. Connect voltmeter from harness side.
3. Measure voltage across terminal No.
p
1
and body ground.
Voltmeter terminal
Voltage
!
@
p
1
Body ground
Approx. 12V
YHA237
A/C control panel con-
nector
YHA238
A/C control panel
connector
A/C control panel con-
nector
YHA239
Auto amp. connector
TROUBLE DIAGNOSES
AUTO
HA-51
Check body ground circuit for auto amp. with ignition switch OFF.
1. Disconnect auto amp. harness connector.
2. Connect ohmmeter from harness side.
3. Check for continuity between terminal No.
p
17
and body
ground.
Ohmmeter terminal
Continuity
!
@
p
17
Body ground
Yes
Diagnostic Procedure 1
SYMPTOM: Blower motor does not rotate at all. (Fan switch
“AUTO”, “1”, “2”, “3”, “4”)
●
Perform PRELIMINARY CHECK 2 before referring to the
following flow chart.
CHECK POWER SUPPLY FOR
BLOWER MOTOR.
Disconnect blower motor harness con-
nector.
Do approx.
12 volts
exist between
blower motor harness terminal No.
p
1
and body ground?
OK
E
NG
Check 15A fuses (No.
,
at fuse block.
(Refer to “POWER SUP-
PLY ROUTING” in EL
section and Wiring Dia-
gram.)
Check circuit continuity between
blower motor harness terminal No.
p
2
and body ground.
OK
E
NG
Reconnect blower motor
harness connector.
CHECK BLOWER MOTOR.
NG
Replace blower motor.
CHECK BLOWER MOTOR CIRCUIT
BETWEEN BLOWER MOTOR AND
RESISTOR.
Do approx.
12 volts
exist between
resistor harness terminal No.
p
5
and
body ground?
OK
E
NG
Disconnect blower motor
and resistor harness
connectors.
Note
Check circuit continuity
between blower motor
harness terminal No.
p
2
and resistor harness
terminal No.
p
5
.
p
A
(Go to next page.)
Note:
If the result is NG or No after checking circuit continuity, repair harness or
connector.
YHA240
Auto amp. connector
KHA118
Blower motor
connector
KHA119
Blower motor
connector
Continuity should exist.
KHA120
Resistor connec-
tor
YHA244
Blower motor
connector
Resistor
connector
H
H
H
H
H
H
TROUBLE DIAGNOSES
AUTO
Main Power Supply and Ground Circuit
Check (Cont’d)
HA-52
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