Acura RSX Honda Integra. Manual — part 405
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21-27
BLOWER MOTOR RELAY 4P SOCKET
BLOWER MOTOR RELAY 4P SOCKET
BLK/YEL
BLOWER MOTOR RELAY 4P SOCKET
BLK
22. Measure the voltage between the No. 3 terminal of
the blower motor relay 4P socket and body ground.
Go to step 23.
Replace the under-hood fuse/relay box.
23. Turn the ignition switch ON (II).
24. Measure the voltage between the No. 2 terminal of
the blower motor relay 4P socket and body ground.
Go to step 25.
Repair open in the BLK/YEL wire between the
No. 14 (10 A) fuse in the under-dash fuse/relay box
and the blower motor relay.
25. Turn the ignition switch OFF.
26. Check for continuity between the No. 1 terminal of
the blower motor relay 4P socket and body ground.
Repair open in the BLU/WHT wire between
the blower motor relay and the blower motor.
Check for an open in the wire between the
blower motor relay and body ground. If the wire is
OK, check for poor ground at G301.
Is ther e batter y voltage?
Is ther e batter y voltage?
Is ther e continuity?
05/06/27 18:04:41 61S6M040_210_0028
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DTC 14:
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NO
YES
NO
21-28
Climate Control
DTC Troubleshooting (cont’d)
EVAPORATOR TEMPERATURE SENSOR
50
10
68
20
86°F
30°C
TEMPERATURE
RESISTANCE
(k
)
10
20
30
40
32
0
CLIMATE CONTROL UNIT 30P CONNECTOR
EVAPORATOR TEMPERATURE SENSOR 2P CONNECTOR
BRN
BRN
An Open in the Evaporator
Temperature Sensor Circuit
1. Remove the evaporator temperature sensor
(see page 21-44).
2. Measure the resistance between the No. 1 and
No. 2 terminals of the evaporator temperature
sensor.
Dip the sensor in ice water, and measure
resistance. Then pour warm water on the sensor,
and check for a change in resistance.
Go to step 3.
Replace the evaporator temperature
sensor.
3. Disconnect the climate control unit 30P connector.
4. Check for continuity between the No. 5 terminal of
the climate control unit 30P connector and the
No. 1 terminal of the evaporator temperature
sensor 2P connector.
Go to step 5.
Repair open in the wire between the climate
control unit and the evaporator temperature
sensor.
Terminal side of male terminals
Wire side of female terminals
Wire side of female terminals
Is the r esistance within the specif ications shown
on the gr aph?
Is ther e continuity?
05/06/27 18:04:42 61S6M040_210_0029
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YES
NO
YES
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YES
NO
DTC 15:
21-29
21-29
CLIMATE CONTROL UNIT 30P CONNECTOR
EVAPORATOR TEMPERATURE SENSOR 2P CONNECTOR
LT GRN
LT GRN
CLIMATE CONTROL UNIT 30P CONNECTOR
BRN
5. Check for continuity between the No. 2 terminal of
the climate control unit 30P connector and the
No. 2 terminal of the evaporator temperature
sensor 2P connector.
Check for loose wires or poor connections at
the climate control unit 30P connector and at the
evaporator temperature sensor 2P connector. If the
connections are good, substitute a known-good
climate control unit, and recheck. If the symptom/
indication goes away, replace the original climate
control unit.
Repair open in the wire between the climate
control unit and the evaporator temperature
sensor.
1. Remove the evaporator temperature sensor
(see page 21-44).
2. Test the evaporator temperature sensor (see page
21-44).
Go to step 3.
Replace the evaporator temperature
sensor.
3. Disconnect the climate control unit 30P connector.
4. Check for continuity between the No. 5 terminal of
the climate control unit 30P connector and body
ground.
Repair short to body ground in the wire
between the climate control unit and the
evaporator temperature sensor.
Substitute a known-good climate control unit,
and recheck. If the symptom/indication goes away,
replace the original climate control unit.
A Short in the Evaporator
Temperature Sensor Circuit
Wire side of female terminals
Wire side of female terminals
Wire side of female terminals
Is ther e continuity?
Is the evapor ator temper atur e sensor OK ?
Is ther e continuity?
05/06/27 18:04:43 61S6M040_210_0030
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YES
NO
21-30
Climate Control
Recirculation Control Motor Circuit Troubleshooting
RECIRCULATION CONTROL MOTOR
5P CONNECTOR
BLK/YEL
CLIMATE CONTROL UNIT 30P CONNECTOR
GRN/WHT
GRN/YEL
CLIMATE CONTROL UNIT 30P CONNECTOR
GRN/WHT
GRN/YEL
1. Check the No. 14 (10 A) fuse in the under-dash fuse/
relay box.
Go to step 2.
Replace the fuse, and recheck.
2. Disconnect the recirculation control motor 5P
connector.
3. Turn the ignition switch ON (II).
4. Measure the voltage between the No. 5 terminal of
the recirculation control motor 5P connector and
body ground.
Go to step 5.
Repair open in the wire between the No. 14
(10 A) fuse in the under-dash fuse/relay box and the
recirculation control motor .
5. Turn the ignition switch OFF.
6. Test the recirculation control motor (see page
21-47).
Go to step 7.
Go to step 12.
7. Disconnect the climate control unit 30P connector.
8. Check for continuity between the No. 25 and No. 26
terminals of the climate control unit 30P connector
and body ground individually.
Repair any short to body ground in the
wire(s) between the climate control unit and the
recirculation control motor.
Go to step 9.
9. Turn the ignition switch ON (II), and check the same
wires for voltage.
Repair any short to power in the wire(s)
between the climate control unit and the
recirculation control motor. This short may also
damage the climate control unit. Repair the short to
power before replacing the climate control unit.
Go to step 10.
Wire side of female terminals
Wire side of female terminals
Wire side of female terminals
Is the f use OK ?
Is ther e batter y voltage?
Is the r ecir culation contr ol motor OK ?
Is ther e continuity?
Is ther e any voltage?
05/06/27 18:04:45 61S6M040_210_0031
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