dashboard ACURA CSX 2006 Service Manual Online


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Max Cool: About 0.5 V
Max Hot: About 4.5 V
21-7221-72 Climate Control
Air Mix Control Motor Test
Air Mix Control Motor Replacement
AIR MIX CONTROL MOTOR
B
A
NOTE: Before testing, check for HVAC DTCs (see page
21-9). 1. Disconnect the 7P connector from the air mix control motor.
Incorrectly applying power and ground to
the air mix control motor will damage it.
Follow the instructions carefully.
2. Connect battery power to terminal No. 1 of the air mix control motor, and ground terminal No. 2; the
air mix control motor should run, and stop at Max
Hot. If it doesn’t, reverse the connections; the air
mix control motor should run, and stop at Max Cool.
When the air mix control motor stops running,
disconnect battery power immediately.
3. If the air mix control motor did not run in step 2, remove it, then check the air mix control linkage
and door for smooth movement.
 If the linkage and door move smoothly, replace the air mix control motor (see page 21-72).
 If the linkage or door sticks or binds, repair them as needed.
 If the air mix control motor runs smoothly, go to step 4.
4. Measure the resistance between terminals No. 5 and No. 7. It should be between 4.2 to 7.8 k .
5. Reconnect the air mix control motor 7P connector, then turn the ignition switch to ON (II).
6. Using the backprobe set, measure the voltage between terminals No. 3 and No. 7.
7. If either the resistance or voltage readings are not as specified, replace the air mix control motor
(see page 21-72). 1. Remove the driver’s dashboard undercover
(see page 20-103).
2. Disconnect the 7P connector (A) from the air mix control motor (B). Remove the self-tapping screws
and the air mix control motor from the heater unit.
3. Install the motor in the reverse order of removal. Make sure the pin on the motor is properly
engaged with the linkage. After installation, make
sure the motor runs smoothly.
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21-81
Heater Unit/Core Replacement
A
B C
8x1.25mm
12.3 N·m
(1.3 kgf·m, 9.0 lbf·ft)
B A
SRS components are located in this area. Review the
SRS component locations (see page 24-11) and the
precautions and procedures (see page 24-13) before
doing repairs or service.
1. Do the battery terminal disconnection procedure (see page 22-68).
2. Disconnect the A/C line from the evaporator core
(see page 21-78).
3. Remove the air cleaner housing assembly (see page 11-345).
4. When the engine is cool, drain the engine coolant from the radiator (see page 10-8).
5. From under the hood, slide the hose clamps (A) back. Disconnect the inlet heater hose (B) and the
outlet heater hose (C) from the heater unit. Note the
orientation of the hoses.
Engine coolant will run out when the hoses are
disconnected; drain it into a clean drip pan. Be sure
not to let coolant spill on the electrical parts or the
painted surfaces. If any coolant spills, rinse it off
immediately. 6. Remove the mounting nut from the heater unit.
Take care not to damage or bend the fuel lines or
brake lines, etc.
7. Remove the dashboard (see page 20- 108).
8. Disconnect the connector (A) from the blower motor. Remove the wire harness clip (B).
(cont’d)
08/08/21 14:43:43 61SNR030_210_0082
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Wire Color Codes
How to Check for DTCs with the Honda
Diagnostic System (HDS)
22-6 Body Electrical
General Troubleshooting Information (cont’d)
WHT/BLK
A
The following abbreviations are used to identify wire
colors in the circuit schematics:
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WHT . White
YEL . Yellow
BLK . Black
BLU . Blue
GRN . Green
RED . Red
ORN . Orange
PNK . Pink
BRN . Brown
GRY . Gray
PUR . Purple
LT BLU . Light Blue
LT GRN . Light Green
The wire insulation has one color or one color with
another color stripe. The second color is the stripe. NOTE: For specific operations, refer to the user’s
manual that came with the Honda Diagnostic System
(HDS).
1. Connect the HDS to the data link connector (A) located under the driver’s side of the dashboard.
2. Turn the ignition switch to ON (II).
3. Make sure the HDS communicates with the vehicle, if it doesn’t, do the DLC circuit troubleshooting
(see page 11-204).
4. Enter the BODY ELECTRICAL, then select the TEST MODE menu.
5. Check for DTCs with the HDS.
6. If any DTCs are indicated, note them, and go to the indicated DTC troubleshooting.
08/08/21 14:22:05 61SNR030_220_0008
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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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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
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) Under-dash Fuse/Relay Box
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)
08/08/21 14:24:02 61SNR030_220_0061
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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
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22-7222-72 Ignition Switch
Test
Replacement
B
WHT
BLU
ORN
RED
YEL A
Terminal
Position
II (ON)
I (ACC)
0 (LOCK) RED
(ACC)
WHT
(BAT)
ORN
(IG2)
BLU
(IG1) YEL
(ST)
III (START) A
B
SRS components are located in the 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), and the steering column covers
(see page 17-9).
3. Disconnect the 7P connector (A) from the ignition switch (B).
4. Check for continuity between the terminals in each switch position according to the table.
5. If the continuity checks do not agree with the table, replace the ignition switch (see page 22-72).
6. Do the battery terminal reconnection procedure (see page 22-68). SRS components are located in the 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), and the steering column covers
(see page 17-9).
3. Disconnect the 7P connector (A) from the ignition switch (B).
4. Remove the two screws and the ignition switch.
5. Install the parts in the reverse order of removal.
6. Do the battery terminal reconnection procedure (see page 22-68).
08/08/21 14:24:06 61SNR030_220_0074
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22-147
Horn Switch Test
A A
B
C
1. Remove the steering column covers (see page
17-9).
2. Disconnect the cable reel 20P connector (A) from the dashboard wire harness.
3. Using a jumper wire, connect dashboard wire harness 20P connector terminal No. 10 to body
ground. The horn should sound.
 If the horn sounds, go to step 4.
 If the horn does not sound, check these items: – No. 12 (15 A) fuse in the under-hood fuse/relay box.
– MICU.
– Horn.
– Anopeninthewire. 4. Reconnect the cable reel 20P connector (A) to the
dashboard wire harness.
5. Remove the driver’s airbag assembly (see page 24-188), and disconnect the horn switch 1P positive
terminal (B) from the cable reel (C).
6. Using a jumper wire, connect the 1P connector to body ground.
 If the horn sounds, replace the driver’s airbag assembly.
 If the horn does not sound, check these items: – Cable reel.
– Anopeninthewire.
Wire side of
female terminals
08/08/21 14:26:09 61SNR030_220_0149
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22-166Exterior Lights
Combination Light Switch Test/Replacement
A
B
1. Remove the driver’s dashboard lower cover (see page 20- 102).
2. Remove the steering column covers (see page 17-9).
3. Disconnect the 12P connector (A) from the combination light switch (B).
4. Remove the two screws, then slide out the combination light switch.
Terminal side of male terminals
08/08/21 14:26:59 61SNR030_220_0168
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