2006 ACURA CSX battery


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21-8321-83
A/C Compressor Replacement
A C
B
6x1.0mm
9.8 N·m
(1.0 kgf·m,
7.2 lbf·ft)
A
B
13. Remove the self-tapping screws, the heater core cover (A), the grommet (B). and carefully pull out
the heater core (C).
14. Install the heater core and the evaporator core in the reverse order of removal.
15. Install the heater unit in the reverse order of removal, and note these items:
 Do not interchange the inlet and outlet heater hoses, and install the hose clamps securely.
 Refill the cooling system with engine coolant (see page 10-8).
 Make sure that there is no coolant leakage.
 Make sure that there is no air leakage.
 Refer to evaporator core replacement (see page 21-78).
16. Do the battery terminal reconnection procedure (see page 22-68). NOTE: Do not install an A/C compressor into a system
unless you are completely sure that the system is free
of contamination. Installing the A/C compressor into a
contaminated system can result in premature A/C
compressor failure.
1. If the A/C compressor is marginally operable, run the engine at idle speed, and let the air
conditioning work for a few minutes, then shut the
engine off.
2. Recover the refrigerant with a recovery/recycling/ charging station (see page 21-90).
3. Remove the drive belt (see page 4-31).
4. Remove the front bulkhead and the condenser fan shroud (see page 10-19).
5. Remove the splash shield (see page 20-172).
6. Remove the bolt and the nut, then disconnect the suction hose (A) and discharge hose (B) from the
A/C compressor. Plug or cap the lines immediately
after disconnecting them to avoid moisture and
dust contamination.
(cont’d)
08/08/21 14:43:45 61SNR030_210_0084
ProCarManuals.com
DYNOMITE -2009-

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Body Electrical
Body Electrical..................................
..................................
Relay and Control Unit
Locations . 22-7
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Connectors and Harnesses . 22-13
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Fuse/Relay Boxes . 22-58
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Power Distribution . 22-60
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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
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..........................
Removal and Installation . 22-66
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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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.......................................
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
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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-

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HarnessLocation
Engine Compartment Dashboard Others (Floor, Door, Trunk, and Roof)Notes
22-13
Connectors and Harnesses
Connector Index
Identification numbers have been assigned to in-line connectors, junction connectors, and terminals. The number is preceded by the letter ‘‘C’’
for connectors, ‘‘G’’ for ground terminals, or ‘‘T’’ for non-ground terminals.
A/C wire harness C205, C504 (see page 22-56)
Battery ground cable ( ), G1 (see page 22-14)
Console subharness C551, C601, C603 (see page 22-57)
Dashboard wire harness
(View of driver’s side) C201, C202, C203, C501,
C502, C751, C752, C801
G501, G503(see page 22-28)
Dashboard wire harness
(View of middle section) C503, C506, C551
G504, G506(see page 22-30)
Dashboard wire harness
(View of passenger’s side) C504, C761, C762
G502, G505(see page 22-32)
Driver’s door subharness C754 (see page 22-46)
Driver’s door wire harness C751, C752 C753, C754 (see page 22-46)
Driver’s seat position sensor harness
(With seat heater) C602 (see page 22-52)
Driver’s seat position sensor harness
(Without seat heater) C602 (see page 22-53)
Driver’s seat wire harness C602, C604 (see page 22-52)
Engine compartment wire harness
(Left branch) C101, C102, C103
G301C201 through C205, C209
G401 (see page 22-22)
Engine compartment wire harness
(Right branch) C206, C207
G201, G202G402, G403 (see page 22-26)
Engine ground cable A T1, G2 (see page 22-14)
Engine ground cable B T2, G3 (see page 22-14)
Engine wire harness (A/T) C101, C103, C105, C106, C107
G101 (see page 22-16)
Engine wire harness (M/T) C101, C105, C106 G101 (see page 22-18)
Floor wire harness (Left branch) C204, C209, C501, C502, C506, C601, C603C602, C604, C701,
C702, C771
G601, G603(see page 22-34)
Floor wire harness (Right branch) C781, C782, C783 G602(see page 22-38)
Front passenger’s door subharness C763 (see page 22-48)
Front passenger’s door wire harness C761, C762 C763 (see page 22-48)
Front passenger’s seat wire harness
(With seat heater) C782, C783 (see page 22-54)
Left rear door wire harness C771 (see page 22-50)
ODS unit harness (With seat heater) C782 (see page 22-54)
ODS unit harness (Without seat
heater) C782 (see page 22-55)
Rear window defogger ground wire G801 (see page 22-42)
Rear wire harness (Left branch) C701, C702, C703 G701(see page 22-40)
Rear wire harness (Right branch) (see page 22-42)
Right rear door wire harness C781 (see page 22-51)
Roof wire harness (With moonroof) C801 (see page 22-44)
Roof wire harness (Without moonroof) C801 (see page 22-45)
Shift solenoid wire harness (A/T) C107 (see page 22-16)
Starter subharness ( ) C102, C106
T3, T4
T101, T102 (see page 22-20)
Trunk lid spoiler subharness (TYPE S
model) C703 (see page 22-40)
USB harness C671 (see page 22-34)
USB subharness C671 (see page 22-57)
08/08/21 14:22:07 61SNR030_220_0015
ProCarManuals.com
DYNOMITE -2009-

•••
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 Under-hood Fuse/Relay Box
Fuse
Number Amps Component(s) or Circuit(s) Protected
22-60Power Distribution
Fuse to Components Index
1 100 A
(BAT)Battery, Power distribution
70 A
(EPS) EPS control unit
250A (IG)Ignition switch
80 A
60 A
(OPTION) No. 5, No. 6, No. 7, No. 27, No. 28, No. 29, and No. 31 fuses (in the under-dash fuse/relay box)
330A (ABS MTR) ABS modulator-control unit , VSA modulator-control unit
30 A
40 A
(ABS FSR) ABS modulator-control unit , VSA modulator-control unit
450A (H/L)No. 18, No. 19, No. 20, and No. 21 fuses (in the under-dash fuse/relay box)
40 A
(P/W) No. 24, No. 25, No. 26, No. 30, No. 32, and No. 33 fuses (in the under-dash fuse/relay box), Power window relay
(in the under-dash fuse/relay box)
5 Not used
6 20 A A/C condenser fan motor (via A/C condenser fan relay)
7 20 A Radiator fan motor (via radiator fan relay)
8 30 A Noise condenser (via rear window defogger relay), Rear window defogger (via rear window defogger relay)
9 40 A Blower motor (via blower motor relay)
10 10 A MICU (turn signal/hazard warning lights circuit)
11 15 A A/F sensor (Sensor 1) (via PGM-FI subrelay), EVAP canister vent shut valve (via PGM-FI subrelay), PGM-FI subrelay, No. 15 fuse (in the under-hood fuse/relay box) (via PGM-FI subrelay)
12 15 A Brake lights, ECM/PCM, Horn, MICU
13 Not used
14 Not used
15 7.5 A A/C condenser fan relay
16 Not used
17 15 A Stereo amplifier
18 15 A Ignition coil relay, Ignition coils (via Ignition coil relay)
19 15 A CKP sensor (via PGM-FI main relay 1), CMP sensor B (via PGM-FI main relay 1), ECM/PCM, ETCS control relay, Injectors (via PGM-FI main relay 1), PGM-FI main relay 1 (FI MAIN), PGM-FI main relay 2 (FUEL PUMP)
20 7.5 A A/C compressor clutch (via A/C compressor clutch relay)
21 15 A ECM/PCM (via ETCS control relay)
22 7.5 A Ceiling light, Courtesy lights, Front individual map lights, Ignition key light, Trunk light, Vanity mirror lights
23 10 A Audio unit , Data link connector (DLC), Gauge control module (speedo), Gauge control module (tach), HandsFreeLink control unit , Immobilizer-keyless control unit, MICU, Moonroof switch, Navigation unit
1: ’06-07 models
2: ’08-09 models
3: ’06-07 Touring and Premium models
4: ’07 TYPE S and ’08-09 models
5: ’08-09 models
6: TYPE S model
7: Without navigation system
8: With navigation system
9: ’09 model with navigation system
1
2
34
3
4 34
6 5
7 9 8
08/08/21 14:24:02 61SNR030_220_0062
ProCarManuals.com
DYNOMITE -2009-

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GroundComponent or Circuit Grounded
22-64Ground Distribution
Ground to Components Index
G1 Battery
G2 Engine
G3 Transmission housing
G101 A/T clutch pressure control solenoid valves A, B, C (A/T), CKP sensor, CMP sensor A, CMP sensor B, Data link connector (DLC), ECM/PCM (LG1), ECM/PCM (LG2), ECM/PCM (PG1), ECM/PCM (PG2), ECM/PCM (PGMETCS), EGR valve (K20Z2 engine), Ignition
coils, Immobilizer-keyless control unit, Rocker arm oil control solenoid, Rocker arm oil pressure switch, Transmission range
switch (A/T), VTC oil control solenoid valve
Shielding between the ECM/PCM and Knock sensor (KS) has wire.
Shielding between the ECM/PCM and Secondary HO2S (Sensor 2) has wire.
G201 Right fog light , Right front parking light, Right front side marker light, Right front turn signal light, Right headlight (high/low beams), Right HID unit , Windshield washer motor, Windshield wiper motor
G202 ABS modulator-control unit , VSA modulator-control unit
G301 A/C condenser fan motor, Blower motor relay, ELD, Left fog light , Left front parking light, Left front side marker light, Left front turn signal light, Left headlight (high/low beams), Left HID unit , Radiator fan motor (via fan control relay)
G401 Brake fluid level switch, Clutch interlock switch (M/T), Clutch pedal position switch (M/T), Hood switch, MICU (PG), Power transistor, Washer fluid level switch (G401 connects to G601 via under-dash fuse/relay box)
G402 EPS control unit
G403 Torque sensor
G501 Dash lights brightness controller and odometer select/reset switch, Driver’s door key cylinder switch, Driver’s door lock knob switch, HandsFreeLink control unit , MICU (SG), VSA OFF switch
G502 Data link connector (DLC), Front accessory power socket, Glove box light, Right power mirror defogger, Right side turn signal light
G503 Accessory power socket relays (front and console), Driver’s door lock switch, Gauge control module (tach), Left power mirror defogger, Left side turn signal light, Moonroof control unit/motor, Power mirror switch light, Power mirror switch, Power
window master switch (main switch), Power window master switch, Vanity mirror lights (driver’s and front passenger’s)
G504 Cable reel (steering wheel switches ground), Climate control unit, Front passenger’s door lock knob switch, Front passenger’s door lock switch, Gauge control module (speedo), Gauge control module (tach), Ignition key switch, Navigation unit , TPMS
control unit
G505 Audio unit , Navigation unit
G506 Memory erase signal (MES) connector, SRS unit (2 wires)
G601 A/T gear position console panel light/Park-pin switch (A/T), Console accessory power socket , Fuel pump, MICU (PG), Seat heater relays (driver’s and front passenger’s), Seat heater switches (driver’s and front passenger’s), Seat heaters (driver’s and
front passenger’s), Stereo amplifier (G601 connects to G401 via under-dash fuse/relay box)
Shielding between the left side impact sensor (FIRST) and rear safing sensor has wire.
Shielding between the SRS unit and left side impact sensor (FIRST) has wire.
G602 Driver’s seat belt buckle switch, Front passenger’s seat belt buckle switch, Left rear door lock knob switch, MICU (SG), MICU service check connector, ODS unit, Right rear door lock knob switch, Yaw rate-lateral acceleration sensor
Shielding between the right side impact sensor (FIRST) and right side impact sensor (SECOND) have wires.
Shielding between the SRS unit and right side impact sensor (FIRST) has wire.
G603 Noise condenser Shielding between the rear safing sensor and left side impact sensor (SECOND) has wire.
G701 High mount brake light, Left back-up light, Left inner taillight, Left rear side marker light, Left rear turn signal light, Left taillight/ brake light, License plate lights, Right back-up light, Right inner taillight, Right rear side marker light, Right rear turn signal light,
Right taillight/brake light, Trunk lid release actuator/Trunk lid latch switch
G801 Rear window defogger ( )
1: ’06-07 Touring and Premium models
2: ’07 TYPE S and ’08-09 models
3: ’08-09 models
4: TYPE S and ’08 premium and ’09 models
5: With HID
6: Without navigation system
7: With navigation system
8: ’09 model with navigation system
9: ’06-08 models, and ’09 model without navigation system
10: TYPE S model
4
512 4
5
82 3
7
3
67
9
10
2
08/08/21 14:24:03 61SNR030_220_0066
ProCarManuals.com
DYNOMITE -2009-

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Special Tools Required
Removal
Installation
22-65
Under-hood Fuse/Relay Box
Removal and Installation
A
B
Relay puller 07AAC-000A1A01. Do the battery terminal disconnection procedure (see page 22-68).
2. Remove the screws (A) for the alternator and battery cable terminals from the under-hood fuse/
relay box.
3. Remove the bottom cover (B) from the under-hood fuse/relay box.
4. Disconnect the connectors from the under-hood fuse/relay box.
5. Carefully remove the relays using the relay puller. NOTE: Do not use pliers. Pliers will damage the
relays, which could cause the engine to stall or not
start. 1. Install the relays and connect the connectors to the
under-hood fuse/relay box, then install the under-
hood fuse/relay box in the r everse order of removal.
2. Install the removed parts in the reverse order of removal.
3. Do the battery terminal reconnection procedure (see page 22-68).
4. Confirm that all systems work properly.
08/08/21 14:24:03 61SNR030_220_0067
ProCarManuals.com
DYNOMITE -2009-


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Special Tools Required
Removal
Installation
22-66Under-dash Fuse/Relay Box
Removal and Installation
A
Relay puller 07AAC-000A1A0
SRS components are located in this area. Review the
SRS component locations (see page 24-11), and
precautions and procedures (see page 24-13) before
doing repairs or serving.
1. Do the battery terminal disconnection procedure (see page 22-68).
2. Remove the driver’s dashboard lower cover (see page 20-102).
3. Disconnect the connectors from the fuse side of the under-dash fuse/relay box (A).
4. Remove the mounting bolt, and pull the fuse/relay box away from the body.
5. Disconnect the connectors from the back side of the under-dash fuse/relay box, then remove the under-
dash fuse/relay box.
6. Carefully remove the relays using the relay puller. NOTE: Do not use pliers. Pliers will damage the
relays, which could cause the engine to stall or not
start. 1. Install the relays and connect the connectors to the
under-dash fuse/relay box, then install the under-
dash fuse/relay box in the reverse order of removal.
2. Install the removed parts in the reverse order of removal.
3. Do the battery terminal reconnection procedure (see page 22-68).
4. Register the immobilizer system with the HDS (see page 22-329).
NOTE: The imoes unit is built into the MICU which
is part of the under-dash fuse/relay box. Because of
this construction, the imoes must be registered, or
the vehicle will not start.
5. Confirm that all systems work properly.
08/08/21 14:24:04 61SNR030_220_0068
ProCarManuals.com
DYNOMITE -2009-