Nissan Terrano r20e. Instruction — part 354
Electrical Components Inspection
FAN SWITCH
Check continuity between terminals at each switch position.
TERMINAL
LEVER
POSITION
OFF
1
2
3
4
5
o
2
o
3
o
4
o
1
o
o
o
o
6
o
o
o
o
BLOWER MOTOR
Confirm smooth rotation of the blower motor.
I
Ensure that there are no foreign particles inside the intake unit.
BLOWER RESISTOR
Check continuity between terminals.
A/C SWITCH
Check continuity between component terminals.
A/C control panel con-
nector terminal No.
A/C switch condition
Continuity
q
1
—
q
7
ON
YES
OFF
NO
q
1
—
q
8
ON
YES
OFF
NO
q
7
—
q
8
ON
YES
OFF
NO
YHA433
RHA021E
YHA434
YHA437
TROUBLE DIAGNOSES
HA-60
DUAL-PRESSURE SWITCH
High-pressure side line pressure
kPa (kg/cm
2
, psi)
Operation
Continuity
Decreasing to 157 - 216 (1.6 - 2.2, 23 - 31)
Increasing to 2,452 - 2,844 (25 - 29, 356 - 412)
Turn OFF
Does not
exist
Increasing to 157 - 235 (1.6 - 2.4, 23 - 34)
Decreasing to 1,863 - 2,256 (19 - 23, 270 - 327)
Turn ON
Exists
THERMO CONTROL AMP.
Evaporator outlet air temperature
°C (°F)
Thermo amp.
operation
Tester
Decreasing to 0.1 - 0.9 (32 - 34)
Turn OFF
Approx. 12V
Increasing to 2.5 - 3.5 (37 - 38)
Turn ON
Approx. 0V
A/C RELAY, COOLING FAN RELAY
Check circuit continuity between terminals by supplying 12 volts to
coil side terminals of relay.
Apply 12V to terminals
q
1
and
q
2
and check continuity between
terminals
q
3
and
q
5
.
Conditions
Continuity
12V direct current supply between terminals
q
1
and
q
2
YES
No current supply
NO
If NG, replace relay.
Refer to EL section for Description.
Control Linkage Adjustment
VENTILATOR DOOR CONTROL ROD
1. Move side link in direction of arrow.
2. With upper and lower ventilator door levers held in the direction
of the arrow, connect rods
q
1
and
q
2
to their corresponding ven-
tilator door levers in that order.
RHA023E
YHA435
YHA436
RHA024E
TROUBLE DIAGNOSES
Electrical Components Inspection (Cont’d)
HA-61
DEFROSTER DOOR CONTROL ROD
1. Move side link in direction of arrow.
2. Connect rod to side link while pushing defroster door lever in
direction of arrow.
AIR CONTROL CABLE
For L.H. drive model
I
Move air control lever to
position.
Set side link in VENT mode.
Pull outer cable in direction of arrow and then clamp it.
For R.H. drive model
I
Move air control lever to
position.
Set side link in DEF mode.
Pull outer cable in direction of arrow and then clamp it.
After positioning control cable, check that it operates properly.
RHA025E
RHA026E
RHA027E
RHA028E
RHA029E
TROUBLE DIAGNOSES
Control Linkage Adjustment (Cont’d)
HA-62
WATER COCK CONTROL ROD
I
When adjusting water cock control rod, first disconnect
temperature control cable from air mix door lever and then
adjust control rod. Reconnect temperature control cable
and readjust it. (Refer to next item.)
1. Push air mix door lever in direction of arrow.
2. Pull control rod of water cock in direction of arrow so as to make
clearance of about 2 mm (0.08 in) between ends of rod and link
lever and connect the rod to door lever.
After connecting control rod, check that it operates properly.
TEMPERATURE CONTROL CABLE
I
When adjusting ventilator door rod and defroster door rod,
first disconnect air control cable from side link.
Reconnect and readjust air control cable.
For L.H. drive model
I
Move temperature control lever to max. COLD position. Set air
mix door lever in full cold mode. Pull outer cable in direction of
arrow and then clamp it.
For R.H. drive model
I
Move temperature control lever to max. HOT position. Set air
mix door lever in full hot mode. Pull outer cable in direction of
arrow and then clamp it.
After positioning control cable, check it operates properly.
INTAKE DOOR CONTROL LINKAGE
I
Adjust the portion of connecting rod where indicated with arrow
as shown in figure.
RHA030E
RHA031E
RHA032E
NHA355
NHA356
TROUBLE DIAGNOSES
Control Linkage Adjustment (Cont’d)
HA-63
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