lock ACURA CSX 2006 Service Repair Manual


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21-6821-68 Climate Control
Outside Air Temperature Sensor
Test
Outside Air Temperature Sensor
Replacement
OUTSIDE AIR TEMPERATURE SENSOR
10
14 0
32 10
5020
68 30
86
40 °C
104 °F
TEMPERATURE
RESISTANCE
(k )
12
11
10
98
7
6
5
4 3
2 1 A
B C
1. Remove the outside air temperature sensor
(see page 21-68).
2. Dip the sensor in ice water, and measure the resistance. Then pour warm water on the sensor,
and check for a change in resistance.
3. Compare the resistance reading between terminals No. 1 and No. 2 of the outside air temperature
sensor with the specifications shown in the graph;
the resistance should be within the specifications.
4. If the resistance is not as specified, replace the outside air temperature sensor (see page 21-68). 1. Remove the front grille cover (see page 20-163).
2. Lift the tab (A) to release the lock, then remove the
outside air temperature sensor (B) from the bracket.
Disconnect the 2P connector (C) from the outside
air temperature sensor.
3. Install the sensor in the reverse order of removal.
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21-71
Power Transistor Test
POWER TRANSISTOR (To 12 V Power source on vehicle)JUMPER WIRE
A
1. Remove the passenger’s dashboard undercover
(see page 20-104).
2. Disconnect the 4P connector from the power transistor.
3. Measure the resistance between terminals No. 3 and No. 4 of the power transistor. It should be
about 1.5 k .
 If the resistance is within the specifications, go to step 4.
 If the resistance is not within the specifications, replace the power transistor.
NOTE: Also check the blower motor. Power
transistor failure can be caused by a defective
blower motor. 4. Carefully release the lock tab on terminal No. 1
(YEL) (A) in the 4P connector, then remove the
terminal and insulate it from body ground.
5. Reconnect the 4P connector to the power transistor.
6. Make sure the YEL wire is completely isolated, then supply 12 V to cavity No. 1 with a jumper wire.
7. Turn the ignition switch to ON (II), and check that the blower motor runs.
 If the blower motor does not run, replace the power transistor.
NOTE: A faulty blower motor can cause the
power transistor to fail. If the power transistor is
replaced, also check the blower motor for
binding, and replace it if necessary.
 If the blower motor runs, the power transistor is OK.
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21-88 Climate Control
A/C Condenser Replacement
6x1.0mm
9.8 N·m (1.0 kgf·m, 7.2 lbf·ft)
A
6x1.0mm
9.8 N·m (1.0 kgf·m, 7.2 lbf·ft) A 6x1.0mm
9.8 N·m
(1.0 kgf·m, 7.2 lbf·ft)
A
A
B CD
1. Recover the refrigerant with a recovery/recycling/
charging station (see page 21-90).
2. Remove the front grille:  ’06-08 models (see page 20-160)
 ’09 model (see page 20-161)
3. Remove the bolts, then disconnect the discharge hose (A) from the A/C condenser.
4. Remove the bolt, then disconnect the receiver line (A) from the A/C condenser. 5. Remove the bolts and the A/C condenser upper
mount brackets (A).
6. Lift the tab (A) to release the lock, then remove the outside air temperature sensor (B) from the bracket.
Disconnect the 2P connector (C), then remove the
clip (D).
7. Remove the hood latch (see page 20-181).
08/08/21 14:43:49 61SNR030_210_0089
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21-98Climate Control
A/C System Noise Check (cont’d)
5. Turn the ignition switch to LOCK (0), and check the
drive belt for excessive wear, oil contamination,
improper routing, or a faulty belt tensioner
(see page 4-30). Correct any problems found. Start
the engine, run the A/C system, and check if the
noise is coming from the drive belt, the belt
tensioner or any of the pulleys. Repair or replace
any faulty components.
6. Listen for noises coming from the A/C lines, the A/C hoses, the condenser, the evaporator, the receiver/
drier, or the expansion valve, and check these
items:
 Noises caused by A/C components touching other components or the body. Reroute or
insulate the A/C component(s) as needed, and
recheck for noise.
 Loose, damaged or excessively worn A/C components or mounting hardware. Repair or
replace the faulty component(s) or hardware, and
recheck for noise.
 A moaning noise coming from the A/C suction line. If there is a moaning noise, check the
system refrigerant charge (see page 21-92). If the
refrigerant charge is OK, replace the receiver/
dryer.
7. Check the operation of the A/C compressor clutch:  Make sure compressor clutch engages withoutslipping. If the clutch does not engage,
troubleshoot the A/C compressor clutch circuit
(see page 21-62). If the compressor clutch slips,
replace the complete clutch assembly (see page
21-86).
 Make sure the compressor clutch disengages. If the clutch does not disengage, do the A/C
compressor clutch check (see page 21-85). If the
compressor clutch is OK, replace the A/C
compressor (see page 21-83).
 Make sure the compressor clutch cycles normally. If the compressor clutch is cycling rapidly, the
A/C system is probably low on refrigerant due to
a leak. Do the refrigerant leak check (see page
21-93). If the refrigerant charge is OK, and there
are no leaks, troubleshoot the A/C compressor
clutch circuit. 8. Listen with a stethoscope for noises coming from
the A/C compressor, and check these items:
 The noise changes when the compressor clutch disengages. If the noise does not change when
the A/C compressor disengages, the noise may
be caused by an engine-related component.
Probe the engine area with a stethoscope to
pinpoint the noise.
 The A/C system operating pressures are normal. If the system pressures are abnormal,
troubleshoot the problem using the pressure test
table in the A/C system check (see page 21-99).
Correct the pressure-related problem(s), and
recheck for noise.
 The compressor hose connections, mounting brackets, and fasteners are in good condition. If
any of these components are loose, damaged, or
excessively worn, repair or replace the faulty
component(s), and recheck for noise. If these
components are in good condition, and the noise
is still present, replace the A/C compressor
(see page 21-83).
08/08/21 14:44:54 61SNR030_210_0099
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Body Electrical
Body Electrical..................................
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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.............................................. .....
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Special Tools . 22-2
General Troubleshooting Information . 22-3
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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
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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
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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)
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Handling Wires and Harnesses
22-4 Body Electrical
General Troubleshooting Information (cont’d)
A
BA
(P/N 08798-9001) DOWN A
AB
 Check for loose retainers (A) and rubber seals (B).
 The backs of some connectors are packed with dielectric grease. Add grease if necessary. If the
grease is contaminated, replace it.
 Insert the connector all the way and make sure it is securely locked.
 Position wires so that the open end of the cover faces down.  Secure wires and wire harnesses to the frame with
their respective wire ties at the designated locations.
 Remove clips carefully; don’t damage their locks (A).
 After installing harness clips, make sure the harness doesn’t interfere with any moving parts.
 Keep wire harnesses away from exhaust components and other hot parts, from sharp edges of brackets and
holes, and from exposed screws and bolts.
 Seat grommets in their grooves properly (A). Do not leave grommets distorted (B).
08/08/21 14:22:05 61SNR030_220_0006
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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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