2006 ACURA CSX lock


(#' 

.

)
µ
µ
µ
µ µ
µ
µ
µ
YES
NO
YES
NO YES
NO
YES
NO
DTC B1231 or DTC indicator G:
21-3721-37
RED
PUR
CLIMATE CONTROL UNIT 32P CONNECTOR
9. Check for continuity between the climate control
unit 32P connector terminals No. 19 and No. 24.
Repair short in the wires between the climate
control unit and the sunlight sensor.
Go to step 10.
10. Reconnect the sunlight sensor 2P connector.
11. Reconnect the climate control unit 32P connector.
12. Test the sunlight sensor (see page 21-69).
Substitute a known-good climate control unit,
and recheck. If the symptom/indication goes away,
replace the original climate control unit.
Replace the sunlight sensor (see page 21-69). 1. Clear the DTC with the HDS.
2. Turn the ignition switch to LOCK (0), and then turn
to ON (II).
3. Do the self-diagnostic with the HDS (see page 21-10) or climate control unit (see page 21-11).
4. Check for DTCs.
Go to step 5.
Intermittent failure, check for loose wires or
poor connections on the evaporator temperature
sensor circuit.
5. Turn the ignition switch to LOCK (0).
6. Remove the evaporator temperature sensor (see page 21-78), and test it (see page 21-70).
Go to step 7.
Replace the evaporator temperature
sensor.
(cont’d)An Open in
the Evaporator Temperature Sensor Circuit
Wire side of female terminals
Is there continuity?
I s t he sunl i ght sensor OK ? I s DT C B1231 or G i nd i cat ed ?
Is t he ev apor at or t emper at ur e sensor OK ?
08/08/21 14:42:18 61SNR030_210_0038
ProCarManuals.com
DYNOMITE -2009-



(#' 

.
)
µ
µ
µ
µ µ
µ
µ
µ
DTC B1232 or DTC indicator H:
YES
NO
YES
NO YES
NO
YES
NO
21-39
BRN
CLIMATE CONTROL UNIT 32P CONNECTOR
RED BRN
CLIMATE CONTROL UNIT 32P CONNECTOR
A Short in the
Evaporator Temperature Sensor Circuit
1. Clear the DTC with the HDS.
2. Turn the ignition switch to LOCK (0), and then turn
to ON (II).
3. Do the self-diagnostic with the HDS (see page 21-10) or climate control unit (see page 21-11).
4. Check for DTCs.
Go to step 5.
Intermittent failure.
5. Turn the ignition switch to LOCK (0).
6. Remove the evaporator temperature sensor (see page 21-78), and test it (see page 21-70).
Go to step 7.
Replace the evaporator temperature
sensor.
7. Disconnect the climate control unit 32P connector. 8. Check for continuity between body ground and the
climate control unit 32P connector terminal No. 8.
Repair short to body ground in the wires
between the climate control unit and the
evaporator temperature sensor.
Go to step 9.
9. Check for continuity between the climate control unit 32P connector terminals No. 8 and No. 19.
Repair short in the wires 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.
Wire side of female terminals
Wire side of female terminals
I s DT C B1232 or H i nd i cat ed ?
Is t he ev apor at or t emper at ur e sensor OK ? Is there continuity?
Is there continuity?
08/08/21 14:42:19 61SNR030_210_0040
ProCarManuals.com
DYNOMITE -2009-


(#' 

.
)
µ
µ
µ
µ µ
µ
DTC B1233 or DTC indicator J:
YES
NO
YES
NO YES
NO
21-40Climate Control
DTC Troubleshooting (cont’d)
AIR MIX CONTROL MOTOR 7P CONNECTOR
GRY
BLK
GRY
RED
BLK
RED
CLIMATE CONTROL UNIT 32P CONNECTOR
An Open in
the Air Mix Control Motor Circuit
1. Clear the DTC with the HDS.
2. Turn the ignition switch to LOCK (0), and then turn
to ON (II).
3. Do the self-diagnostic with the HDS (see page 21-10) or climate control unit (see page 21-11).
4. Check for DTCs.
Go to step 5.
Intermittent failure, check for loose wires or
poor connections on the air mix control motor
circuit.
5. Turn the ignition switch to LOCK (0).
6. Test the air mix control motor (see page 21-72).
Go to step 7.
Replace the air mix control motor (see page
21-72).
7. Disconnect the air mix control motor 7P connector.
8. Disconnect the climate control unit 32P connector. 9. Check for continuity between the following
terminals of the climate control unit 32P connector
and the air mix control motor 7P connector.
32P: 7P:
No. 7 No. 5
No. 19 No. 7
No. 27 No. 3
Check for loose wires or poor connections at
the climate control unit 32P connector and at the air
mix control motor 7P 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(s) between the
climate control unit and the air mix control
motor.
Wire side of female terminals Wire side of female terminals
I s DT C B1233 or J i nd i cat ed ?
I s t he ai r mi x cont r ol mot or OK ? Is there continuity?
08/08/21 14:42:19 61SNR030_210_0041
ProCarManuals.com
DYNOMITE -2009-

Î
(#' 

.
)
µ
µ
µ
µ µ
µ
µ
µ
DTC B1234 or DTC indicator K:
YES
NO
YES
NO YES
NO
YES
NO
21-41
RED
CLIMATE CONTROL UNIT 32P CONNECTOR
BLK
GRY
A Short in the
Air Mix Control Motor Circuit
1. Clear the DTC with the HDS.
2. Turn the ignition switch to LOCK (0), and then turn
to ON (II).
3. Do the self-diagnostic with the HDS (see page 21-10) or climate control unit (see page 21-11).
4. Check for DTCs.
Go to step 5.
Intermittent failure.
5. Turn the ignition switch to LOCK (0).
6. Test the air mix control motor (see page 21-72).
Go to step 7.
Replace the air mix control motor (see page
21-72).
7. Disconnect the air mix control motor 7P connector.
8. Disconnect the climate control unit 32P connector. 9. Check for continuity between body ground and the
climate control unit 32P connector terminals No. 7,
19, and No. 27 individually.
Repair short to body ground in the wire(s)
between the climate control unit and the air mix
control motor.
Go to step 10.
10. Check for continuity between the climate control unit 32P connector terminals as follows.
From terminal To terminals 7 19, 27
19 27
Repair the short in the wires.
Go to step 11.
(cont’d)
Wire side of female terminals
I s DT C B1234 or K i nd i cat ed ?I s t he ai r mi x cont r ol mot or OK ? Is there continuity?
I s t her e cont i nui t y bet w een any of t he t er mi nal s?
08/08/21 14:42:19 61SNR030_210_0042
ProCarManuals.com
DYNOMITE -2009-

Î
(#' 

.
)
µ
µ µ
µ
YES
NO YES
NO
DTC B1235 or DTC indicator L:
21-4221-42Climate Control
DTC Troubleshooting (cont’d)
RED
CLIMATE CONTROL UNIT 32P CONNECTOR
BLK
GRY
11. Turn the ignition switch to ON (II), and measure thesame terminals for voltage to body ground.
Repair short to power in the wire(s) between
the climate control unit and the air mix control
motor. This short may also damage the climate
control unit. Repair the short to power before
replacing the climate control unit.
Substitute a known-good climate control unit,
and recheck. If the symptom/indication goes away,
replace the original climate control unit. 1. Clear the DTC with the HDS.
2. Turn the ignition switch to LOCK (0), and then turn
to ON (II).
3. Do the self-diagnostic with the HDS (see page 21-10) or climate control unit (see page 21-11).
4. Check for DTCs.
Go to step 5.
Intermittent failure.
5. Turn the ignition switch to LOCK (0).
6. Disconnect the air mix control motor 7P connector.
7. Disconnect the climate control unit 32P connector.A Problem in
the Air Mix Control Linkage, Door, or Motor
Wire side of female terminals
I s t her e any v ol t age? I s DT C B1235 or L i nd i cat ed ?
08/08/21 14:42:19 61SNR030_210_0043
ProCarManuals.com
DYNOMITE -2009-

Î
(#' 

.
)
µ
µ
µ
µ µ
µ
DTC B1239 or DTC indicator M:
YES
NO
YES
NO YES
NO
21-44Climate Control
DTC Troubleshooting (cont’d)
MODE CONTROL MOTOR 7P CONNECTOR
BLU
PUR ORN
LT GRN
RED
PUR
BLU RED
ORN
LT GRN
CLIMATE CONTROL UNIT 32P CONNECTOR
An Open or
Short in the Mode Control Motor Circuit
1. Clear the DTC with the HDS.
2. Turn the ignition switch to LOCK (0), and then turn
to ON (II).
3. Do the self-diagnostic with the HDS (see page 21-10) or climate control unit (see page 21-11).
4. Check for DTCs.
Go to step 5.
Intermittent failure, check for loose wires or
poor connections on the mode control motor
circuit.
5. Turn the ignition switch to LOCK (0).
6. Test the mode control motor (see page 21-73).
Go to step 7.
Replace the mode control motor (see page
21-73).
7. Disconnect the mode control motor 7P connector.
8. Disconnect the climate control unit 32P connector. 9. Check for continuity between the following
terminals of the climate control unit 32P connector
and the mode control motor 7P connector.
32P: 7P:
No. 19 No. 7
No. 20 No. 3
No. 21 No. 4
No. 22 No. 5
No. 23 No. 6
Go to step 10.
Repair open in the wire(s) between the
climate control unit and the mode control motor.
Wire side of female terminals Wire side of female terminals
I s DT C B1239 or M i nd i cat ed ?
I s t he mod e cont r ol mot or OK ? Is there continuity?
08/08/21 14:42:20 61SNR030_210_0045
ProCarManuals.com
DYNOMITE -2009-


(#' 

.
)
µ
µ
µ
µ
DTC B1240 or DTC indicator N:
YES
NO
YES
NO
21-46Climate Control
DTC Troubleshooting (cont’d)
CLIMATE CONTROL UNIT 32P CONNECTOR
GRN
WHT
MODE CONTROL MOTOR 7P CONNECTOR WHT
GRN
A Problem in
the Mode Control Linkage, Doors, or Motor
1. Clear the DTC with the HDS.
2. Turn the ignition switch to LOCK (0), and then turn
to ON (II).
3. Do the self-diagnostic with the HDS (see page 21-10) or climate control unit (see page 21-11).
4. Check for DTCs.
Go to step 5.
Intermittent failure.
5. Turn the ignition switch to LOCK (0).
6. Disconnect the mode control motor 7P connector.
7. Disconnect the climate control unit 32P connector. 8. Check for continuity between the following
terminals of climate control unit 32P connector and
the mode control motor 7P connector.
32P: 7P:
No. 10 No. 1
No. 12 No. 2
Go to step 9.
Repair open in the wire(s) between the
climate control unit and the mode control motor.
Wire side of female terminals
Wire side of female terminals
I s DT C B1240 or N i nd i cat ed ?
Is there continuity?
08/08/21 14:42:21 61SNR030_210_0047
ProCarManuals.com
DYNOMITE -2009-



(#' 

.

)
µ
µ
µ
µ µ
µ
µ
µ
YES
NO
YES
NO YES
NO
YES
NO
DTC B1241 or DTC indicator P:
21-4721-47
WHT
GRN
CLIMATE CONTROL UNIT 32P CONNECTOR
BLOWER MOTOR 2P CONNECTORJUMPER WIRE GRN
9. Check for continuity between body ground and theclimate control unit 32P connector terminals No. 10
and No. 12 individually.
Repair short to body ground in the wire(s)
between the climate control unit and the mode
control motor.
Go to step 10.
10. Test the mode control motor (see page 21-73).
Substitute a known-good climate control unit,
and recheck. If the symptom/indication goes away,
replace the original climate control unit.
Replace the mode control motor (see page
21-73), or repair the mode control linkage or
doors. 1. Clear the DTC with the HDS.
2. Turn the ignition switch to LOCK (0), and then turn
to ON (II).
3. Do the self-diagnostic with the HDS (see page 21-10) or climate control unit (see page 21-11).
4. Check for DTCs.
Go to step 5.
Intermittent failure, check for loose wires or
poor connections on the blower motor circuit.
5. Turn the ignition switch to LOCK (0).
6. Check the No. 9 (40 A) fuse in the under-hood fuse/relay box, and the No. 36 (10 A) fuse in the
under-dash fuse/relay box.
Go to step 7.
Replace the fuses, and recheck. If the fuses
blow again, check for a short in the No. 9 (40 A) and
No. 36 (10 A) fuses circuit.
7. Connect the blower motor 2P connector terminal No. 2 to body ground with a jumper wire.
(cont’d)A Problem in
the Blower Motor Circuit
Wire side of female terminals
Wire side of female terminals
Is there continuity?I s t he mod e cont r ol mot or OK ? I s DT C B1241 or P i nd i cat ed ?
Ar e t he f uses OK ?
08/08/21 14:42:21 61SNR030_210_0048
ProCarManuals.com
DYNOMITE -2009-