fuse ACURA CSX 2006 Service Repair Manual




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)
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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)
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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
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(#'
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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)
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Socket Ref Terminal Connects toNotes
22-59
2
3
4
5
1
16
17
18
11
12
14
13
15
10 6
7
8
9 19
20
(View of front side) (View of back side)
A (Optional connector)
9 6 Not used
C 10 4 Dashboard wire harness (see page 22-28)
D 4 2 Dashboard wire harness (see page 22-28)
E 5 42 Floor wire harness (see page 22-34)
F 6 34 Engine compartment wire harness (see page 22-22)
G 7 21 Engine compartment wire harness (see page 22-22)
H (MICU service check connector) 8 3
J 20 4 Dashboard wire harness (see page 22-28)
K 12 8 Dashboard wire harness (see page 22-28)
M 13 10 Dashboard wire harness (see page 22-28)
Memory erase signal (MES) connector socket 11
N 14 14 Dashboard wire harness (see page 22-28)
P 19 10 Dashboard wire harness (see page 22-28)
PGM-FI main relay 2 (FUEL PUMP) 2 4
Power window relay 1 4
Q 17 16 Dashboard wire harness (see page 22-28)
R 15 20 Dashboard wire harness (see page 22-28)
Starter cut relay 3 4
S 16 20 Dashboard wire harness (see page 22-28)
T 18 34 Dashboard wire harness (see page 22-28)
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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
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Under-dash Fuse/Relay Box
Fuse
Number Amps
Component(s) or Circuit(s) Protected
22-62Power Distribution
Fuse to Components Index (cont’d)
1 7.5 A Power mirror switch light
2 15 A ECM/PCM, Fuel pump (via PGM-FI main relay 2), Immobilizer-keyless control unit
3 10 A Alternator, CMP sensor A, ECM/PCM (via brake pedal position switch), ELD, EVAP canister purge valve, MAF
sensor/IAT sensor, Reverse lockout solenoid , Secondary HO2S (sensor 2)
4 7.5 A ABS modulator-control unit , EPS control unit, VSA modulator-control unit , Yaw rate-lateral acceleration sensor
5 15 A Seat heaters (via seat heater relays)
6 20 A Fog light relay, Fog lights (via fog light relay)
7 Not used
8 Not used
9 7.5 A ODS unit, Passenger’s airbag cutoff indicator, SRS unit
10 7.5 A Back-up light (M/T), Gauge control module (speedo), Gauge control module (tach), MICU, Shift lock solenoid (A/T), TPMS control unit
11 10 A SRS unit
12 10 A Right headlight (high beam)
13 10 A Left headlight (high beam)
14 7.5 A Audio unit light , Climate control unit light, Dash lights brightness controller and odometer select/reset switch light, Driver’s footwell light , Driver’s seat heater switch light, Glove box light, Hazard warning switch light,
Moonroof switch light, Navigation unit , Park pin switch light (A/T), Passenger’s airbag cutoff indicator light,
Passenger’s footwell light , Passenger’s seat heater switch light, Steering wheel switches light (via cable reel),
VSA OFF switch light
15 7.5 A Parking lights, Taillights, License plate lights, Side marker lights
16 10 A Right headlight (low beam) 15 A Right HID unit
17 10 A Left headlight (low beam) 15 A Left HID unit
18 20 A MICU ( B H/L HI)
19 15 A MICU ( B SMALL LT)
20 Not used
1: ’06-07 Touring and Premium models
2: ’07 TYPE S and ’08-09 models
3: ’08-09 models
4: TYPE S model
5: With HID
6: Without HID
7: TYPE S and ’08 Premium and ’09 models
8: Without navigation system
9: With navigation system
4
1 2
2
7
3
8 49
4
6
5
6
5
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Fuse
Number Amps
Component(s) or Circuit(s) Protected
22-63
23 45
1 16 17
19
18 20
11
12 1413 15
26 27 2928 30
21 22
2423 25
36 37
38
3132
34
33
35
10
67 8
9
21 20 A MICU ( B H/L LO)
30 A MICU ( B H/L LO)
22 Not used
23 Not used
24 20 A Moonroof control unit/motor
25 20 A MICU ( B DR LOCK)
26 20 A Driver’s power window motor (via power window master switch)
27 Not used
28 15 A Console accessory power socket (via console accessory power socket relay)
29 15 A Front accessory power socket (via front accessory power socket relay)
30 20 A Front passenger’s power window motor
31 Not used
32 20 A Moonroof control unit/motor, Moonroof switch , Right rear power window motor
33 20 A Left rear power window motor
34 Not used
35 7.5 A Audio unit , Console accessory power socket relay, Front accessory power socket relay, HandsFreeLink control unit , Ignition key switch, Navigation unit , Stereo amplifier
36 10 A Climate control unit, Driver’s seat heater switch, Fan control relay and radiator fan relay (via A/C diode), Passenger’s seat heater switch, Power mirrors (via power mirror switch), Under-hood fuse/relay box (A/C
compressor clutch relay, Blower motor relay, Power mirror defogger relay, Rear window defogger relay)
37 7.5 A MICU (daytime running lights power supply)
38 30 A MICU (IG 1 WIPER)
1: ’06-07 models
2: TYPE S model
3: Without HID
4: With HID
5: ’09 model with navigation system
6: Without navigation system
7: With navigation system3
4
1
6
5 72
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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
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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.
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