2006 ACURA CSX fuse

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21-62
Climate Control
A/C Compressor Clutch Circuit Troubleshooting
A/C COMPRESSOR CLUTCH RELAY 4P SOCKET
NOTE:
 It is normal for the A/C compressor to turn off under certain conditions, such as low idle, high engine
coolant temperature, or hard acceleration.
 Do not use this troubleshooting procedure if the fans are also inoperative with the A/C on. Refer to the
symptom troubleshooting index.
 Before doing any symptom troubleshooting, check for powertrain DTCs (see page 11-3).
1. Check the No. 20 (7.5 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 2.
Replace the fuses and recheck. If the fuses
blow again, check for a short in the No. 20 (7.5 A)
and No. 36 (10 A) fuses circuit.
2. Connect the HDS to the DLC.
3. Start the engine.
4. Turn on the A/C.
5. Using the HDS, confirm the following values in the PGM-FI Data List at idle.
ECT Sensor 2 80 100 °C (176 212 °F)
TP Sensor About 0.5 V at idle
RPM More than 670
A/C Switch ON
A/C Clutch ON
A/C Pressure
Sensor 196 455 kPa (28 455 psi)
Go to step 6.
Troubleshoot the value that is not within the
specifications. 6. Turn the ignition switch to LOCK (0).
7. Remove the A/C compressor clutch relay from the
under-hood fuse/relay box, and test it (see page
22-70).
Go to step 8.
Replace the A/C compressor clutch relay.
8. Measure the voltage between the A/C compressor clutch relay 4P socket terminal No. 1 and body
ground.
Go to step 9.
Replace the under-hood fuse/relay box
(see page 22-65).
Ar e t he f uses OK ?
Are all the values within specif ications? Is the relay OK ?
Is there battery voltage?
08/08/21 14:43:32 61SNR030_210_0063
ProCarManuals.com
DYNOMITE -2009-


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21-63
JUMPER WIRE
PUR
A/C COMPRESSOR CLUTCH RELAY 4P SOCKET
A/C COMPRESSOR CLUTCH RELAY 4P SOCKET
BRN ECM/PCM CONNECTOR A (44P)
JUMPER WIRE RED
9. Connect the A/C compressor clutch relay 4P socket
terminals No. 1 and No. 2 with a jumper wire.
Go to step 10.
Go to step 19.
10. Disconnect the jumper wire.
11. Turn the ignition switch to ON (II).
12. Measure the voltage between the A/C compressor clutch relay 4P socket terminal No. 3 and body
ground.
Go to step 13.
Repair open in the wire between the No. 36
(10 A) fuse in the under-dash fuse/relay box and the
A/C compressor clutch relay. 13. Turn the ignition switch to LOCK (0).
14. Reinstall the A/C compressor clutch relay.
15. Jump the SCS line with the HDS.
NOTE: This step must be done to protect the engine
control module (ECM)/powertrain control module
(PCM) from damage.
16. Disconnect ECM/PCM connector A (44P).
17. Connect the ECM/PCM connector A (44P) terminal No. 14 to body ground with a jumper wire.
18. Turn the ignition switch to ON (II). Check for loose wires or poor connections at
ECM/PCM connector A (44P). If the connections are
good, check the ECM/PCM grounds. If the grounds
are good, substitute a known-good ECM/PCM, and
recheck. If the symptom/indication goes away,
replace the original ECM/PCM (see page 11-228).
Repair open in the wire between the A/C
compressor clutch relay and the ECM/PCM.
(cont’d)
Terminal side of female terminals
Does the A/ C compressor clutch click?
Is there battery voltage? Does t he A/ C compr essor cl i ck ?
08/08/21 14:43:33 61SNR030_210_0064
ProCarManuals.com
DYNOMITE -2009-

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Body Electrical
Body Electrical..................................
..................................
Relay and Control Unit
Locations . 22-7
................
Connectors and Harnesses . 22-13
........................
........................
Fuse/Relay Boxes . 22-58
......................
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Power Distribution . 22-60
....................
....................
Ground Distribution . 22-64
Under-hood Fuse/Relay Box
Under-dash Fuse/Relay Box
Battery
Relays
Ignition Switch
Multiplex Integrated Control System Keyless/Power Door Locks/Security
System
Horns
Exterior Lights
Turn Signal/Hazard Warning Lights
Interior Lights.............................................. .....
..............................................
.....
Special Tools . 22-2
General Troubleshooting Information . 22-3
.......................... ..........................
Removal and Installation . 22-65
..........................
..........................
Removal and Installation . 22-66
.......................................................................................... .............
................................................
.......................................... .............
Battery Test
. 22-67
Battery Terminal Disconnection and Reconnection . 22-68
Battery Removal and Installation . 22-69
.......................................
.......................................
Power Relay Test . 22-70
............................................................. ..............................................
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..............................................
Test
. 22-72
Replacement . 22-72
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Component Location Index
. 22-73
General Troubleshooting Information . 22-74
DTC Troubleshooting Index . 22-77
System Description . 22-80
Troubleshooting-B-CAN System Diagnosis Test Mode A . 22-93
Troubleshooting-B-CAN System Diagnosis Test Mode B . 22-94
Troubleshooting-B-CAN System Diagnosis Test Mode C . 22-95
Troubleshooting-B-CAN System Diagnosis Test Mode D . 22-96
Troubleshooting-B-CAN System Diagnosis Test Mode 1 and
Test Mode 2 (Without the HDS) . 22-97
Sleep and Wake-up Mode Test . 22-99
Circuit Diagram . 22-100
DTC Troubleshooting . 22-102
MICU Input Test . 22-109 ......................
...................................
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Component Location Index
. 22-112
System Description . 22-114
Circuit Diagram . 22-116
DTC Troubleshooting . 22-120
Symptom Troubleshooting . 22-126
Tripped Sensor History . 22-130
MICU Input Test . 22-131
Door Lock Actuator Test . 22-137
Door Lock Knob Switch Test . 22-138
Door Lock Switch Test . 22-139
Door Key Cylinder Switch Test . 22-140
Trunk Lid Release Actuator Test . 22-141
Hood Switch Test . 22-141
Transmitter Test/Replacement . 22-142
......................
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....................................... ......................
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.......................................
Component Location Index
. 22-145
Circuit Diagram . 22-146
Horn Test/Replacement . 22-146
Horn Switch Test . 22-147
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Component Location Index
. 22-148
Circuit Diagram . 22-150
DTC Troubleshooting . 22-157
MICU Input Test . 22-163
Combination Light Switch Test/ Replacement . 22-166
HID Bulb Replacement . 22-168
HID Unit Replacement . 22-169
HID Lamp System Troubleshooting . 22-170
Headlight Adjustment . 22-173
Headlight Replacement . 22-174
Fog Light Replacement . 22-175
Fog Light Adjustment . 22-176
Bulb Replacement . 22-177
Taillight Replacement . 22-179
Inner Taillight Replacement . 22-179
License Plate Light Replacement . 22-180
High Mount Brake Light Replacement . 22-180
Brake Pedal Position Switch Test . 22-181
......................
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Component Location Index
. 22-182
Circuit Diagram . 22-184
DTC Troubleshooting . 22-186
MICU Input Test . 22-188
Hazard Warning Switch Test/Replacement . 22-192
Side Turn Signal Light Replacement . 22-192
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Component Location Index
. 22-193
Circuit Diagram . 22-194
Front Individual Map Light Test/ Replacement . 22-196
Ceiling Light Test/Replacement . 22-197
Trunk Light Replacement . 22-197
Ambient Light Test/Replacement . 22-198
Courtesy Light Replacement . 22-198
Glove Box Light Test/Replacement . 22-199
Vanity Mirror Light Test/Replacement . 22-199
Interior Light Switch Test/Replacement . 22-200
Trunk Lid Latch Switch Test . 22-200
Footwell Light Test/Replacement . 22-201
08/08/21 14:22:03 61SNR030_220_0002
ProCarManuals.com
DYNOMITE -2009-





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Tips and Precautions
Before Troubleshooting
Handling Connectors
22-3
General Troubleshooting Information
A A A
A
1. Check applicable fuses in the appropriate fuse/relay box.
2. Check the battery for damage, state of charge, and clean and tight connections.
 Do not quick-charge a battery unless the battery ground cable has been
disconnected, otherwise you will damage
the alternator diodes.
 Do not attempt to crank the engine with the battery ground cable loosely
connected or you will s everely damage the
wiring.
 Make sure the connectors are clean and have no loose wire terminals.
 Make sure multiple cavity connectors are packed with dielectric grease (except watertight connectors).
 All connectors have push-down release type locks (A).  Some connectors have a clip on their side used to
attach them to a mount bracket on the body or on
another component. This clip has a pull type lock.
 Some mounted connectors cannot be disconnected unless you first release the lock and remove the
connector from its mount bracket (A).
 Never try to disconnect connectors by pulling on their wires; pull on the connector halves instead.
 Always reinstall plastic covers.
 Before connecting connectors, make sure the terminals (A) are in place and not bent.
(cont’d)
08/08/21 14:22:04 61SNR030_220_0005
ProCarManuals.com
DYNOMITE -2009-




Testing and Repairs
Five-step Troubleshooting
22-5
 Do not use wires or harnesses with broken insulation.
Replace them or repair them by wrapping the break
with electrical tape.
 Never attempt to modify, splice, or repair SRS wiring. If there is an open or damage is SRS wiring or
terminals, replace the harness.
 After installing parts, make sure that no wires are pinched under them.
 When using electrical test equipment, follow the manufacturer’s instructions and those described in
this manual.
 If possible, insert the probe of the tester from the wire side (except waterproof connector).
 Use back probe adaptor 07TAZ-001020A.
 Refer to the instructions in the Honda Terminal Kit for identification and replacement of connector terminals. 1. Verify The Complaint:
Turn on all the components in the problem circuit
to verify the client complaint. Note the symptoms.
Do not begin disassembly or testing until you have
narrowed down the problem area.
2. Analyze The Schematic: Look up the schematic for the problem circuit.
Determine how the circuit is supposed to work by
tracing the current paths from the power feed
through the circuit components to ground. If
several circuits fail at the same time, the fuse or a
ground is a likely cause.
Based on the symptoms and your understanding of
the circuit operation, identify one or more possible
causes of the problem.
3. Isolate The Problem By Testing The Circuit: Make circuit tests to check the diagnosis you made
in step 2. Keep in mind that a logical, simple
procedure is the key to efficient troubleshooting.
Test for the most likely cause of failure first. Try to
make tests at points that are easily accessible.
4. Fix The Problem: Once the specific problem is identified, make the
repair. Be sure to use proper tools and safe
procedures.
5. Make Sure The Circuit Works: Turn on all components in the repaired circuit in all
modes to make sure you’ve fixed the entire
problem. If the problem was a blown fuse, be sure
to test all of the circuits on the fuse. Make sure no
new problems turn up and the original problem
does not recur.
(cont’d)
08/08/21 14:22:05 61SNR030_220_0007
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DYNOMITE -2009-

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22-7
Relay and Control Unit Locations
Engine Compartment
ABS MODULATOR-CONTROL UNIT
(’06-07 Touring and Premium models) or
VSA MODULATOR-CONTROL UNIT
(’07 TYPE S and ’08-09 models)
ECM/PCM
A/C CONDENSER FAN RELAY FAN CONTROL RELAY
BLOWER MOTOR RELAYPOWERMIRRORDEFOGGERRELAY
PGM-FI SUBRELAY
REAR WINDOW DEFOGGER RELAY
IGNITION COIL RELAY
A/C COMPRESSOR CLUTCH RELAY
UNDER-HOOD FUSE/RELAY BOX
PGM-FI MAIN RELAY 1
(FI MAIN) RADIATOR FAN RELAY
ELECTRONIC THROTTLE CONTROL
SYSTEM (ETCS) CONTROL RELAY
ELECTRICAL LOAD DETECTOR (ELD)
08/08/21 14:22:06 61SNR030_220_0009
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22-8Relay and Control Unit Locations
Dashboard
GAUGE CONTROL
MODULE (TACH)
GAUGE CONTROL MODULE
(SPEEDO)
POWER WINDOW RELAY PGM-FI MAIN RELAY 2
(FUEL PUMP)
STARTER CUT RELAY
MICU
UNDER-DASH FUSE/
RELAY BOX
View of front side View of rear sideFRONT ACCESSORY POWER SOCKET RELAY
CONSOLE ACCESSORY POWER SOCKET RELAY
FOG LIGHT RELAY
(TYPE S and ’08 PREMIUMand ’09 models)
Wire colors: BLU, WHT, BLK, and PUR
Wirecolors:YEL,GRN,BLK,andPUR
Wire colors: PNK,
WHT, ORN, and WHT
08/08/21 14:22:06 61SNR030_220_0010
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DYNOMITE -2009-

•••
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(#'
) Under-hood Fuse/Relay Box
Socket Ref Terminal Connects toNotes
22-58Fuse/Relay Boxes
Connector to Fuse/Relay Box Index
234
5
1 16
17 19
18
20
11
12
14
13 15
21
22
24
23
25
10 6
7
89
(View of front side) (View of back side)
A (ELD)21 3 Engine compartment wire harness (see page 22-22)
A/C compressor clutch relay 12 4
A/C condenser fan relay 3 4
B 22 1 Engine compartment wire harness (see page 22-22)
Blower motor relay 2 4
C 23 2 Engine compartment wire harness (see page 22-22)
D 25 8 Engine compartment wire harness (see page 22-22)
Diode (for A/C condenser fan) 9
Diode (for radiator fan) 8
E 24 10 Engine compartment wire harness (see page 22-22)
Electronic throttle control system
(ETCS) control relay 14 4
F 17 20 Engine compartment wire harness (see page 22-22)
Fan control relay 4 5
G 19 1 Engine compartment wire harness (see page 22-22)
H 20 1 Engine compartment wire harness (see page 22-22)
Ignition coil relay 7 4
J 16 4 Engine compartment wire harness (see page 22-22)
K 18 2 Engine compartment wire harness (see page 22-22)
PGM-FI main relay 1 (FI MAIN) 13 4
PGM-FI subrelay 6 4
Power mirror defogger relay 5 5
Radiator fan relay 15 4
Rear window defogger relay 1 4
T3 10Starter subharness (see page 22-20)
T101 11Starter subharness (see page 22-20)
08/08/21 14:23:02 61SNR030_220_0060
ProCarManuals.com
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