µ
µ
µ
µ µ
µ
YES
NO
YES
NO YES
NO
21-45
RED
ORN
BLU PURLT GRN
CLIMATE CONTROL UNIT 32P CONNECTOR
REDORN
BLU PURLT GRN
CLIMATE CONTROL UNIT 32P CONNECTOR
10. Check for continuity between body ground and the
climate control unit 32P connector terminals
No. 19, 20, 21, 22, and No. 23 individually.
Repair short to body ground in the wire(s)
between the climate control unit and the mode
control motor.
Go to step 11.
11. Check for continuity between the climate control unit 32P connector terminals as follows.
From terminal To terminals 19 20, 21, 22, 23
20 21, 22, 23
21 22, 23
22 23
Repair the short in the wires.
Go to step 12. 12. Turn the ignition switch to ON (II), and measure the
same terminals for voltage to body ground.
Repair short to power in the wire(s) between
the climate control unit and the mode control motor.
This short may also damage the climate control
unit. Repair the short to power before replacing the
climate control unit.
Check for loose wires or poor connections at
the climate control unit 32P connector and at the
mode 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.
Wire side of female terminals Wire side of female terminals
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? I s t her e any v ol t age?
08/08/21 14:42:20 61SNR030_210_0046
ProCarManuals.com
DYNOMITE -2009-
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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
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DYNOMITE -2009-
(#'
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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
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DYNOMITE -2009-
µ
µ
µ
µ µ
µ
µ
µ
YES
NO
YES
NO
YES
NO
YES
NO
21-48Climate Control
DTC Troubleshooting (cont’d)
POWER TRANSISTOR 4P CONNECTOR
BLK
POWER TRANSISTOR 4P CONNECTOR BLKJUMPER WIRE
GRN
BLU
YEL
CLIMATE CONTROL UNIT 32P CONNECTOR
8. Turn the ignition switch to ON (II).
Go to step 9.
Go to step 24.
9. Turn the ignition switch to LOCK (0).
10. Disconnect the jumper wire.
11. Disconnect the power transistor 4P connector.
12. Check for continuity between the power transistor 4P connector terminal No. 2 and body ground.
Go to step 13.
Check for an open in the wire between the
power transistor and body ground. If the wire is OK,
check for poor ground at G401 (see page 22-64).
13. Connect the power transistor 4P connector terminals No. 2 and No. 4 with a jumper wire. 14. Turn the ignition switch to ON (II).
Go to step 15.
Repair open in the GRN wire between the
power transistor and the blower motor.
15. Turn the ignition switch to LOCK (0).
16. Disconnect the jumper wire.
17. Disconnect the climate control unit 32P connector.
18. Check for continuity between body ground and the climate control unit 32P connector terminals No. 13
and No. 14 individually.
Repair short to body ground in the wire(s)
between the climate control unit and the power
transistor.
Go to step 19.
Wire side of female terminals
Wire side of female terminals
Wire side of female terminals
Does t he bl ow er mot or r un?
Is there continuity? Does t he bl ow er mot or r un at hi gh speed ?
Is there continuity?
08/08/21 14:42:22 61SNR030_210_0049
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DYNOMITE -2009-
µ
µ
µ
µ µ
µ
µ
µ
µ
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YES
NO
YES
NO YES
NO
YES
NO
YES
NO
21-49
BLU
YEL
BLU YEL
POWER TRANSISTOR 4P CONNECTOR
CLIMATE CONTROL UNIT 32P CONNECTOR
BLU
YEL
CLIMATE CONTROL UNIT 32P CONNECTOR
BLOWER MOTOR 2P CONNECTOR
WHT
19. Check for continuity between the followingterminals of the climate control unit 32P connector
and the power transistor 4P connector.
32P: 4P:
No. 13 No. 1
No. 14 No. 3
Go to step 20.
Repair open in the wire(s) between the
climate control unit and the power transistor.
20. Turn the ignition switch to ON (II).
21. Measure the voltage between body ground and the climate control unit 32P connector terminals No. 13
and No. 14 individually.
Repair short to power in the wire(s).
Go to step 22. 22. Reconnect the climate control unit 32P connector.
23. Test the power transistor (see page 21-71).
Check for loose wires or poor connections at
the climate control unit 32P connector and at the
power transistor 4P 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.
Replace the power transistor.
24. Disconnect the jumper wire.
25. Disconnect the blower motor 2P connector.
26. Measure the voltage between the blower motor 2P connector terminal No. 1 and body ground.
Replace the blower motor.
Go to step 27.
27. Turn the ignition switch to LOCK (0).
28. Remove the blower motor relay from the under- hood fuse/relay box, and test it (see page 22-70).
Go to step 29.
Replace the blower motor relay.
(cont’d)
Wire side of female terminalsWire side of female terminals
Wire side of female terminals
Wire side of female terminals
Is there continuity?
Is there voltage? Is the power transistor OK ?
Is there battery voltage?Is the relay OK ?
08/08/21 14:42:22 61SNR030_210_0050
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DYNOMITE -2009-
µ
µ
µ
µ µ
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YES
NO
YES
NO YES
NO
21-50Climate Control
DTC Troubleshooting (cont’d)
BLOWER MOTOR RELAY 4P SOCKET
BLOWER MOTOR RELAY 4P SOCKET
BRN BLOWER MOTOR RELAY 4P SOCKET
BLK
29. Measure the voltage between the blower motorrelay 4P socket terminal No. 1 and body ground.
Go to step 30.
Replace the under-hood fuse/relay box
(see page 22-65).
30. Turn the ignition switch to ON (II).
31. Measure the voltage between the blower motor relay 4P socket terminal No. 3 and body ground.
Go to step 32.
Repair open in the wire between the No. 36
(10 A) fuse in the under-dash fuse/relay box and the
blower motor relay. 32. Turn the ignition switch to LOCK (0).
33. Check for continuity between the blower motor
relay 4P socket terminal No. 4 and body ground.
Repair open in the 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 (see page 22-64).
Is there battery voltage?
Is there battery voltage? Is there continuity?
08/08/21 14:42:23 61SNR030_210_0051
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DYNOMITE -2009-
(#'
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µ µ
µ
µ
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DTC B2983 or DTC indicator B and AUTO:
YES
NO
YES
NO YES
NO
YES
NO
21-51
ORN
ORN
CLIMATE CONTROL UNIT 32P CONNECTOR
RED
RECIRCULATION CONTROL MOTOR 7P CONNECTOR PUR
PUR
ORN
CLIMATE CONTROL UNIT 32P CONNECTOR
A Problem in the Recirculation Control
Linkage, Door, 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 recirculation 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 recirculation control motor 7P connector.
32P: 7P:
No. 15 No. 1
No. 16 No. 2
Go to step 9.
Repair open in the wire(s) between the
climate control unit and the recirculation control
motor. 9. Check for continuity between body ground and the
climate control unit 32P connector terminals No. 15
and No. 16 individually.
Repair short to body ground in the wire(s)
between the climate control unit and the
recirculation control motor.
Go to step 10.
10. Test the recirculation control motor (see page 21-74).
Substitute a known-good climate control unit,
and recheck. If the symptom/indication goes away,
replace the original climate control unit.
Replace the recirculation control motor
(see page 21-74), or repair the recirculation control
linkage or door.
Wire side of female terminals
Wire side of female terminals
Wire side of female terminals
I s DT C B2983 or B and AU T O i nd i cat ed ?
Is there continuity? Is there continuity?
I s t he r eci r cul at i on cont r ol mot or OK ?
08/08/21 14:42:23 61SNR030_210_0052
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DTC B2986 or DTC indicator A and AUTO:
YES
NO
YES
NO YES
NO
21-52Climate Control
DTC Troubleshooting (cont’d)
RECIRCULATION CONTROL MOTOR 7P CONNECTOR
RED
YEL YEL
RED
CLIMATE CONTROL UNIT 32P CONNECTOR
BLK
BLK
An Open in the Recirculation 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 recirculation control motor
circuit.
5. Turn the ignition switch to LOCK (0).
6. Test the recirculation control motor (see page 21-74).
Go to step 7.
Replace the recirculation control motor
(see page 21-74).
7. Disconnect the recirculation 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 recirculation control motor 7P connector.
32P: 7P:
No. 7 No. 5
No. 19 No. 7
No. 31 No. 3
Check for loose wires or poor connections at
the climate control unit 32P connector and at the
recirculation 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 recirculation control
motor.
Wire side of female terminals
Wire side of female terminals
I s DT C B2986 or A and AU T O i nd i cat ed ? I s t he r eci r cul at i on cont r ol mot or OK ? Is there continuity?
08/08/21 14:42:23 61SNR030_210_0053
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