navigation system ACURA CSX 2006 Service Repair Manual

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INTRODUCTION
How to Use This Manual
Safety Messages
Safety Labels
Safety Messages
Instructions
HONDA MOTOR CO., LTD.
Service Publication Office
As sections with * include SRS components;
special precautions are required when servicing.
This manual is divided into multiple sections. The first page of
each section is marked with a black tab that lines up with its
corresponding thumb index tab on this page and the back cover.
You can quickly find the first page of each section without
looking through a full table of contents. The symbols printed at
the top corner of each page can also be used as a quick
reference system.
Each section includes: 1. A table of contents, or an exploded view index showing:  Parts disassembly sequence.
 Bolt torques and thread sizes.
 Page references to descriptions in text.
2. Disassembly/assembly procedures and tools.
3. Inspection.
4. Testing/troubleshooting.
5. Repair.
6. Adjustments.
Your safety, and the safety of others, is very important. To help
you make informed decisions, we have provided safety
messages, and other safety information throughout this manual.
Of course, it is not practical or possible to warn you about all the
hazards associated with servicing this vehicle. You must use
your own good judgment.
You will find important safety information in a variety of forms
including:  on the vehicle.
 preceded by a safety alert symbol and one of three signal words, DANGER, WARNING, or CAUTION.
These signal words mean:
You WILL be KILLED or SERIOUSLY HURT if
you don’t follow instructions.
You CAN be KILLED or SERIOUSLY HURT if
you don’t follow instructions.
You CAN be HURT if you don’t follow
instructions.
 how to service this vehicle correctly and safely.
All information contained in this manual is based on the latest
product information available at the time of printing. We reserve
the right to make changes at anytime without notice. No part of
this publication may be reproduced, or stored in a retrieval
system, or transmitted, in any form by any means, electronic,
mechanical, photocopying, recording, or otherwise, without the
prior written permission of the publisher. This includes text,
figures, and tables.
As you read this manual, you will find information that is
preceded by a symbol. The purpose of this message is
to help prevent damage to your vehicle, other property, or the
environment.
First Edition 10/2008
All Rights Reserved
Specifications apply to Canada
Specifications Maintenance
*Engine Electrical
Fuel and Emissions
*Transaxle
*Steering
*Body
*Body Electrical
*Restraints *Audio, Navigation,
and Telematics
General Information
Engine Mechanical
Engine Cooling
Brakes
(Including VSA)
*Heating, Ventilation, and Air ConditioningSuspension
(Including TPMS)
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pecial Tools Required
20-98 Dashboard
Instrument Panel Removal/Installation
Fastener Locations
:Screw,3 F
astener Locations
:Clip,2
A
Fastener Locations : Clip, 6
A
B C
KTC trim tool set SOJATP2014
NOTE:

Take care not to scratch the instrument panel and
related parts.
 Use the appropriate tool from the KTC trim tool set to avoid damage when removing components.
1. Remove these items:
 Subdisplay visor (see page 20-100)
 Navigation unit, with navigation system– ’06-08 models (see page 23-155)
– ’09 model (see page 23-355)
 Audio unit, without navigation system – ’06-08 models (see page 23-80)
– ’09 model (see page 23-256)
2. Remove the screws. 3

. Detach the clips along the lower edge of the
instrument panel (A).
4. Detach the clips along the upper edge of the instrument panel (A). Gently pull out the instrument
panel to release the hooks (B) from the holder (C) of
the gauge control module.
5. Install the instrument panel in the reverse order of removal, and note these items:
 If the clips are damaged or stress-whitened, replace them with new ones.
 Push the clips into place securely.
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pecial Tools Required
Dr
iver’s Center Vent
20-105
Dashboard Vent Removal/Installation
Fastener Locations
A
B
:Screw,3
F
astener Locations
A
B
:Screw,3
KTC trim tool set SOJATP2014
NOTE: Take care not to scratch the dashboard and
r

elated parts.
1. Remove the subdisplay visor (see page 20- 100).
2. Remove the screws securing the driver’s outer vent (A), then remove the driver’s outer vent from the
subdisplay visor (B).
3. Install the outer vent in the reverse order of removal. N

OTE: Take care not to scratch the dashboard and
related parts.
1. Remove these items:  Navigation unit, with navigation system– ’06-08 models (see page 23-155)
– ’09 model (see page 23-355)
 Audio unit, without navigation system – ’06-08 models (see page 23-80)
– ’09 model (see page 23-256)
2. Remove the screws securing the driver’s center vent (A), then remove the driver’s center vent from
the center panel (B).
3. Install the center vent in the reverse order of removal.
(cont’d)
08/08/21 15:02:55 61SNR030_200_0107
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pecial Tools Required
20-114 Dashboard
Dashboard/Steering Hanger Beam Disassembly/Reassembly
Fastener Locations
:Bolt,5
5x0.8mm
5N·m
(0.5 kgf·m,
4lbf·ft) A
B
B C
D
A D
KTC trim tool set SOJATP2014
NOTE:

Put on gloves to protect your hands.
 Take care not to scratch the dashboard and related parts.
 Take care not to bend the brackets.
 Use the appropriate tool from the KTC trim tool set to avoid damage when removing components.
1. Remove the dashboard/steering hanger beam (see page 20-108).
2. Remove these items from the dashboard:  Instrument panel (see page 20-98)
 Gauge control module (speedo) trim (see page20-99)
 Subdisplay visor (see page 20-100)
 Navigation unit, with navigation system – ’06-08 models (see page 23-155)
– ’09 model (see page 23-355)
 Audio unit, without navigation system – ’06-08 models (see page 23-80)
– ’09 model (see page 23-256)
 Passenger’s airbag (see page 24-189)
 Gauge control module (speedo) (see page 22-277)
 Gauge control module (tach) (see page 22- 277)
3. Remove the bolts. 4

. From the back of the dashboard, release the hooks
(A), then remove the center joint duct (B).
5. From the back of the dashboard, disconnect the tweeter connectors (A), the front accessory power
socket connector (B), and the sunlight sensor
connector (C), then detach the harness clips (D).
08/08/21 15:03:00 61SNR030_200_0116
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HVAC (Heating, Ventilation, andAir Conditioning)
Climate Control
HVAC (Heating, Ventilation, and Air Conditioning)
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Special Tools . 21-2
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Component Location Index . 21-3
A/C Service
Tips and Precautions . 21-6
A/C System Inspection . 21-6
A/C Refrigerant Oil Replacement . 21-7
A/C Line Replacement . 21-8
General Troubleshooting Information . 21-9
DTC Troubleshooting Index . 21-15
Symptom Troubleshooting Index . 21-16
System Description . 21-19
Circuit Diagram . 21-26
DTC Troubleshooting . 21-28
Climate Control Power and Ground Circuit
Troubleshooting . 21-53
Navigation Communication Line Circuit
Troubleshooting . 21-54
Radiator and A/C Condenser Fan Low Speed Circuit
Troubleshooting . 21-56
A/C Condenser Fan High Speed Circuit Troubleshooting . 21-60
A/C Compressor Clutch Circuit Troubleshooting . 21-62
A/C Signal Circuit Troubleshooting . 21-64
In-car Temperature Sensor Test . 21-67
In-car Temperature Sensor Replacement . 21-67
Outside Air Temperature Sensor Test . 21-68
Outside Air Temperature Sensor Replacement . 21-68
Sunlight Sensor Test . 21-69
Sunlight Sensor Replacement . 21-69
Evaporator Temperature Sensor Test . 21-70 ............
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Power Transistor Test . 21-71
Air Mix Control Motor Test . 21-72
Air Mix Control Motor
Replacement . 21-72
Mode Control Motor Test . 21-73
Mode Control Motor Replacement . 21-73
Recirculation Control Motor Test . 21-74
Recirculation Control Motor Replacement . 21-74
Climate Control Unit Removal/Installation . 21-75
Dust and Pollen Filter Replacement . 21-75
Blower Unit Removal/Installation . 21-76
Blower Unit Component Replacement . 21-77
Evaporator Core Replacement . 21-78
Expansion Valve Replacement . 21-80
Heater Unit/Core Replacement . 21-81
A/C Compressor Replacement . 21-83
A/C Compressor Clutch Check . 21-85
A/C Compressor Clutch Overhaul . 21-86
A/C Compressor Thermal Protector
Replacement . 21-87
A/C Compressor Relief Valve Replacement . 21-87
A/C Condenser Replacement . 21-88
Receiver/Dryer Desiccant Replacement . 21-89
Refrigerant Recovery . 21-90
System Evacuation . 21-91
System Charging . 21-92
Refrigerant Leak Check . 21-93
A/C System Noise Check . 21-97
A/C System Test . 21-99
08/08/21 14:40:45 61SNR030_210_0002
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Symptom Diagnostic procedure Also check for
21-16
Climate Control
Symptom Troubleshooting Index







 –
– 




 





 





 –
– 





 


The blower and heater
controls and the A/C
system do not work
Probable cause: Climate control unit malfunction
Do the climate control power and ground circuit
troubleshooting (see page 21-53) HVAC DTCs (see page 21-9)
Blown fuse No. 36 (10 A) in the
driver’s under-dash fuse/relay
box
Poor ground at G504 (see page
22-30)
Poor or loose connections at the
terminals
The A/C compressor
clutch and the A/C
condenser/radiator
fans are inoperative,
but the blower and
heater controls work Probable cause: A/C pressure sensor circuit
malfunction
Troubleshoot the pressure sensor circuit:
A/C pressure sensor circuit low voltage
(see page 11-301)
A/C pressure sensor circuit high voltage
(see page 11-303)
NOTE: The A/C pressure sensor can malfunction
without setting a DTC HVAC DTCs (see page 21-9)
Powertrain DTCs (see page
11-3)
A/C signal circuit
troubleshooting (see page
21-64)
Poor or loose connections at the
terminals
The A/C compressor
clutch does not engage,
but the A/C condenser/
radiator fans operate,
and the blower and
heater controls work Probable cause: No power to the A/C compressor
clutch
Do the A/C compressor clutch circuit
troubleshooting (see page 21-62)
HVAC DTCs (see page 21-9)
Blown fuse No. 20 (7.5 A) in the
under-hood fuse/relay box
A/C system pressure is normal
(see page 21-21)
A/C thermal protector has
continuity (see step 4 on page
21-85)
Poor or loose connections at the
terminals
The A/C condenser fan
and/or the radiator fan
do not run with the A/C
on Probable cause: Condenser/radiator fan low
speed circuit malfunction
Do the radiator and A/C condenser fan low speed
circuit troubleshooting (see page 21-56) HVAC DTCs (see page 21-9)
Powertrain DTCs (see page
11-3)
Blown fuse No. 7 (20 A) in the
under-hood fuse/relay box
Poor ground at G301 (see page
22-22)
Poor or loose connections at the
terminals
The condenser/radiator
fans do not run at high
speed, but do run at
low speed Probable cause: Malfunction in the fan(s) high
speed circuit
Do the following troubleshooting as needed:
A/C condenser fan high speed circuit
troubleshooting (see page 21-60)
Radiator fan high speed circuit troubleshooting
(see page 10-26) HVAC DTCs (see page 21-9)
Powertarin DTCs (see page
11-3)
Blown fuse No. 6 (20 A) and/or
No.7 (20 A) in the under-hood
fuse/relay box
Poor ground at G301 (see page
22-22)
Poor or loose connections at the
terminals
Voice commands do
not work Probable cause: Communication problem
between the climate control unit and the
navigation system
Do the navigation communication line circuit
troubleshooting (see page 21-54) HVAC DTCs (see page 21-9)
Navi system link (see page
23-135)
Poor or loose connections at the
terminals
08/08/21 14:40:58 61SNR030_210_0017
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21-27
RED
(With navigation system)
30 29 28
F3 F2 F4
NAVIGATION UNIT
CLKSO
BLU
RED
YEL 12 V
PURBLU
LT GRN
BRN
BRN
BLU
REAR WINDOW DEFOGGER RELAY DASH LIGHTS
BRIGHTNESS
CONTROLLER
GRY
1
RED 18
2
32 6
PNK 5
3
19 20 21
22 23
12 10 15 16
31 9 11 27 7 24 8 26 25 13 14
G5041
1 2 2
2
YEL
RED REDPNK
LT BLU
RED RED
WHT BLU
LT GRN
PUR
ORN GRN RED
YEL
ORN GRY
PNK
LT BLU YEL
BLU
4
2
1
S-COM
REC
FRS FRD-P S5V
S-COM
M-DEF
M-VENT
MODE 4 MODE 2
MODE 3 MODE 1
2 2 1
BRN
PUR BLK
RED BLK
5V
1
3 5
4 6 1 2
3 5 BLK
CLIMATE CONTROL UNIT 1
2 1
RED
G401GRN
3
WHT
5
3
1
2
BLK
S5V
AMD-P
M-HOT
M-COOLS-COM WHT
7 7
7
DRIVING
CIRCUIT BLOWER
MOTOR
POWER
TRANSISTOR
OUTSIDE AIR
TEMPERATURE SENSOR
AIR MIX
CONTROL
MOTOR
RECIRCULATION
CONTROL
MOTOR
MODE
CONTROL
MOTOR
IN-CAR
TEMPERATURE SENSOR
EVAPORATOR
TEMPERATURE SENSOR
SUNLIGHT SENSOR
No. 14 (7.5 A)
In the under-dash
fuse/relay box SI
: CAN line
B-CAN
08/08/21 14:41:04 61SNR030_210_0028
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YES
NO
YES
NO
YES
NO
YES
NO
21-54Climate Control
Navigation Communication Line Circuit Troubleshooting
NAVIGATION UNIT CONNECTOR F (5P)
CLIMATE CONTROL UNIT 32P CONNECTOR
REDBLU YEL
YEL
BLU
RED
CLIMATE CONTROL UNIT 32P CONNECTOR
NAVIGATION UNIT CONNECTOR D (12P) BLU
YEL
BLU
YEL
RED
RED
1. Operate the climate control system in severalmodes.
Go to step 2.
Do the self-diagnostic with the HDS (see page
21-10) or climate control unit (see page 21-11).
2. Do the Navi system link (see page 23-135).
 ’06-08models:Gotostep3.
 ’09 model: Go to step 7. Go to step 13.
3. Turn the ignition switch to LOCK (0).
4. Disconnect navigation unit connector F (5P).
5. Disconnect climate control unit 32P connector.
6. Check for continuity between the following terminals of climate control unit 32P connector and
navigation unit connector F (5P).
32P: 5P:
No. 28 No. 4
No. 29 No. 2
No. 30 No. 3
Go to step 11.
Repair open in the wire(s) between the
climate control unit and the navigation unit. 7. Turn the ignition switch to LOCK (0).
8. Disconnect navigation unit connector D (12P).
9. Disconnect climate control unit 32P connector.
10. Check for continuity between the following terminals of climate control unit 32P connector and
navigation unit connector D (12P).
32P: 12P:
No. 28 No. 6
No. 29 No. 12
No. 30 No. 5
Go to step 11.
Repair open in the wire(s) between the
climate control unit and the navigation unit.
Wire side of female terminals Wire side of female terminals
Wire side of female terminals
Wire side of female terminals
I s t he cl i mat e cont r ol sy st em OK ? Is the Air-Con icon red?
Is there continuity? Is there continuity?
08/08/21 14:42:24 61SNR030_210_0055
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YES
NO
YES
NO
21-55
CLIMATE CONTROL UNIT 32P CONNECTOR
REDYEL
BLU CLIMATE CONTROL UNIT 32P CONNECTOR
REDBLUYEL
JUMPER WIRE
11. Check for continuity between body ground and climate control unit 32P connector terminals No. 28,
29, and No. 30 individually.
Repair short to body ground in the wire(s)
between the climate control unit and the navigation
unit.
Go to step 12.
12. Reconnect climate control unit 32P connector.
13. ’06-08 models: Disconnect navigation unit connector F (5P).
’09 model: Disconnect navigation unit connector D
(12P). 14. Connect climate control unit 32P connector
terminals No. 28, 29, and No. 30 with a jumper wire.
15. Turn the ignition switch to ON (II).
16. Press the RECIRCULATION and OFF buttons. Troubleshoot the navigation system: ’06-08
models (see page 23-130), ’09 model (see page
23-346).
Substitute a known-good climate control unit,
and recheck. If the symptom goes away, replace
the original climate control unit.
Wire side of female terminals Wire side of female terminals
Is there continuity?
Does the RECIRCULAT ION indicator turn on?
08/08/21 14:42:25 61SNR030_210_0056
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21-6721-67
In-car Temperature Sensor Test In-car Temperature Sensor Replacement
IN-CAR 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
1. Remove the in-car temperature sensor (see page21-67).
2. Test the in-car temperature sensor while holding it in front of the dashboard center vent.
 Measure the resistance with the system set to Max Cool.
 Measure the resistance with the system set to Max Hot.
3. Compare the resistance reading between terminals No. 1 and No. 2 of the in-car 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 in-car temperature sensor (see page 21-67). 1. Remove the center panel:
 ’06-08 models with navigation (see page 23-155)
 ’06-08 models without navigation (see page23-80)
 ’09 model with navigation (see page 23-355)
 ’09 model without navigation (see page 23-256)
2. Remove the self-tapping screw and the in-car temperature sensor (A) from the center panel (B).
3. Install the sensor in the reverse order of removal. Be sure to connect the air hose securely.
08/08/21 14:43:34 61SNR030_210_0068
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