2006 ACURA CSX diagram

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Driver can select reverse gear when vehicle
speed is 20 km/h (12 mph) or more
YES
NO
YES
NO
13-7413-74 Reverse Lockout System
Circuit Diagram
Symptom Troubleshooting
GRN/BLKYEL
1 2
BLK/YEL BLU
IG1
BAT WHT
BATTERY
UNDER-HOOD
FUSE/RELAY
BOX
IGNITION
SWITCH
IG1HOTinON(II)
and START (III)
UNDER-DASH
FUSE/RELAY
BOX
REVERSE
LOCKOUT
SOLENOID
No. 1
(100 A)
No. 3
(10 A) No. 2
(50 A)
GRN
ECM A27 RVS
NOTE:
 When checking if the transmission will shift to reverse while the wheels are being driven forward,
raise the vehicle on a lift, make sure it is securely
supported, and allow the front wheels to rotate freely.
 Do not release the clutch pedal if you can select reverse gear while the wheels are driven forward.
 When the vehicle is on a lift, and you make the wheels rotate, turn off the VSA system by the VSA
OFF switch.
1. Turn the ignition switch to LOCK (0).
2. Check the No. 3 (10 A) fuse in the under-dash fuse/ relay box.
Reinstallthefuse,thengotostep3.
Install a new No. 3 (10 A) fuse, and recheck. If
the fuse continues to blow, check for short to body
ground in the wire between the No. 3 (10 A) fuse in
the under-dash fuse/relay box and the r everse
lockout solenoid.
3. Test-drive the vehicle.
4. Check for fuel and emissions system’s DTC with the HDS.
Go to the indicated DTC’s troubleshooting.
Go to step 5.
IsthefuseOK?
Ar e t her e any DT Cs st or ed i n t he f uel andemi ssi ons?
08/08/21 14:46:39 61SNR030_130_0076
ProCarManuals.com
DYNOMITE -2009-

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Automatic Transmission
Automatic TransmissionA/T Gear Position Indicator
A/T Interlock System.............................................. .....
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Special Tools . 14-2
General Troubleshooting Information . 14-3
DTC Troubleshooting Index . 14-9
Symptom Troubleshooting Index . 14-13
Component Location Index . 14-25
System Description . 14-26
DTC Troubleshooting . 14-80
Road Test . 14-208
Stall Speed Test . 14-210
Pressure Test . 14-211
Shift Solenoid Valve
Test . 14-215
Replacement . 14-217
Shift Solenoid Wire Harness Replacement . 14-217
A/T Clutch Pressure Control Solenoid Valve A
Test . 14-219
Replacement . 14-221
A/T Clutch Pressure Control Solenoid Valve B
Test . 14-222
Replacement . 14-226
A/T Clutch Pressure Control Solenoid Valve C
Test . 14-224
Replacement . 14-226
Input Shaft (Mainshaft) Speed Sensor Replacement . 14-227
Output Shaft (Countershaft) Speed Sensor Replacement . 14-227
2nd Clutch Transmission Fluid Pressure Switch Replacement . 14-228
3rd Clutch Transmission Fluid Pressure Switch Replacement . 14-228
ATF Temperature Sensor Test/Replacement . 14-229
ATF Level Check . 14-231
ATF Replacement . 14-232
Transmission Removal . 14-233
Drive Plate Removal and Installation . 14-242
Transmission Installation . 14-242
ATF Cooler Hose Replacement . 14-253
Shift Lever Removal . 14-254
Shift Lever Installation . 14-255
Shift Lever Disassembly/Reassembly . 14-256
Shift Cable Replacement . 14-257
Shift Cable Adjustment . 14-259 ......................
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Component Location Index . 14-263
Circuit Diagram . 14-264
Transmission Range Switch Test . 14-265
Transmission Range Switch
Replacement . 14-267
A/T Gear Position Indicator Panel Light Harness Replacement . 14-269
Paddle Shifter (Upshift Switch) Circuit Troubleshooting . 14-270
Replacement . 14-276
Paddle Shifter (Downshift Switch) Circuit Troubleshooting . 14-273
Replacement . 14-277
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Component Location Index . 14-278
Circuit Diagram . 14-279
Shift Lock System Circuit
Troubleshooting . 14-280
Key Interlock System Circuit Troubleshooting . 14-285
Shift Lock Solenoid Test . 14-287
Shift Lock Solenoid Replacement . 14-287
Shift Lock Stop Replacement . 14-288
Shift Lock Stop Cushion Replacement . 14-288
Park Pin Switch Test . 14-289
Park Pin Switch Replacement . 14-269
08/08/21 14:37:02 61SNR030_140_0002
ProCarManuals.com
DYNOMITE -2009-

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Electronic Control System
Functional Diagram
14-39
*1: ’06-07 models
*2: ’08-09 models Engine RPM Signal
Accelerator Pedal
Position Sensor Signal
Barometric Pressure
Sensor Signal
Manifold Absolute
Pressure Sensor Signal
ATF Temperature
Sensor Signal
Service Check SignalTransmission
Range
Switch
Signal
Brake Pedal Position
Switch Signal PGM-FI Control
System
PCM
A/T Control System Shift Control
 Ascending Control
 Descending
Control
 D-paddle Shift
Control

Clutch Pressure
Control
Lock-up Control
Shift Lock Control Shift Lock Solenoid
Vehicle Speed Signal
Data Link Connector Shift Solenoid Valve E
Shift Solenoid Valve D Shift Solenoid Valve C Shift Solenoid Valve B
Shift Solenoid Valve A
F-CAN Line
Automatic
Five-speed and
ReverseLock-up
ON/OFF
Lock-up
Conditions
Sequential
Sportshift
Control Gauge Control Module
(Tach) A/T Gear
Position Indicator
Engine Coolant
Temperature Sensor Signal
2ndClutchTransmission
Fluid Pressure Switch Signal ABS Modulator-Control
Unit Signal (via F-CAN line)*
Output Shaft (Countershaft)
Speed Sensor Signal
Paddle Shifter /
(Upshift/Downshift Switch) 3rdClutchTransmission
Fluid Pressure Switch Signal
1
VSA Modulator-Control
Unit Signal (via F-CAN line)*2
Input Shaft (Mainshaft)
Speed Sensor Signal
Grade Logic Control
Self-diagnosis/
Fail-safe Function
Communication and
Output Function
A/TClutchPressure
Control Solenoid Valve C A/TClutchPressure
Control Solenoid Valve B A/TClutchPressure
Control Solenoid Valve A
The electronic control system consists of the powertrain control module (PCM), sensors, and solenoid valves.
Shifting and lock-up are electronically controlled for comfortable driving under all conditions.
The PCM receives input signals from sensors, switches, and other control units, processes data, and outputs signals
for the engine control system and the A/T control system. The A/T control system includes shift control, grade logic
control, clutch pressure control, and lock-up control.
The PCM switches the shift solenoid valves and the A/T clutch pressure control solenoid valves ON and OFF to control
gear selection and torque converter clutch lock-up.
(cont’d)
08/08/21 14:38:21 61SNR030_140_0041
ProCarManuals.com
DYNOMITE -2009-

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Circuit Diagram - PCM A/T Control System
14-78Automatic Transmission
System Description (cont’d)
LT GRN
BRN
SDNP B40
GRN
BLU/YEL BLU
CABLE REEL
2
1 1 2
B16
SUPP
LG2 LG1 PG2
PG1
C40 B1
C44 B36
BLK
BRN/YEL
BRN/YEL
G101 PG SG
16
15
BLK
C(44P)
B(44P)
A(44P)
Terminal side of female terminals
19 1
WHT
RED RED
WHT
17
CANL
A37 A36 CANH
PNK 1
3827
65410 17
6
54938 10
BLK
B13 BLK/GRN BRN
C36
IG1
12 V
GAUGE CONTROL MODULE (TACH) No. 2 (15 A)
UNDER-DASH FUSE/RELAY BOX
No.10(7.5A)
BLU/WHT
RED/BLK
WHT ORN
A40
LT GRN
WHT SLS
A27
RED
BLK BAT
IG1
IGNITION SWITCH
No. 12 (15 A)
BKSW BLK
BLU/WHT
FWD RVS
S ST
P R
N
TRANSMISSION RANGE SWITCH D
B22
ATPRVS
ATPFWD
ATPP
ATPR ATPN ATPD ATPS
YEL/RED
B28
G101
B12
B21
BLU
PNK
RED/BLK
WHT
BLK/BLU
B14 B15
WHT/RED
BLU/BLK YEL/GRN
RED
BLU/YEL
1
2 YEL BLK
G503
PNK D N
R
P
UNDER-HOOD FUSE/RELAY BOX
No. 2 (IG) (50 A)
No. 1 (100 A)
BATTERY
A/T
GEAR
POSITION
INDICATOR
DRIVER
CIRCUIT
CPU STARTER
CUT RELAY
SHIFT LOCK
SOLENOID BRAKE PEDAL
POSITION SWITCH MULTIPLEX INTEGRATED
CONTROL UNIT (MICU)
F-CAN
TRANSCEIVER
DASH-LIGHT BRIGHTNESS
CONTROL CIRCUIT
RIGHT
GRN/ORN
LT GRN
BLK/WHT
LEFT
LT GRN
SHIFT
INDICATOR
RED/WHT
G504 G504
POWERTRAIN CONTROL
MODULE (PCM)
BLK/RED* BLK* *1: ’06 model
*2: ’07 09 models
5V
BLK16
17
6 16
17
7
PADDLE SHIFTER
(DOWNSHIFT SWITCH)PADDLE SHIFTER
(UPSHIFT SW ITCH)
PCM Connector Terminal Locations
S
BRN
WHT
YEL
GND
364144
43
42
27 28
30 33 34 35
32 25
20 21 22 16 18
17
13 14 15
12
11 789
43
1
3123
31
456
15
14
21
20 2524
3433
29
28
27
42 44
40
37
36 31
1
23456 9 87
11 12 1514 13 17 18
16
32
29
30
42 43 44
4039
36
181716 19
3598
10 21
20
27
2
26 29 22
40
23
24
4123
10
26 39
12
08/08/21 14:39:46 61SNR030_140_0080
ProCarManuals.com
DYNOMITE -2009-

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14-264
A/T Gear Position Indicator
Circuit Diagram
22
36 444342 27 28 30 33 34 35
3225
20 21 22 16 1817
13 14 15
1211 789
3
1
3123
31
456
1514
21
20 25
24
34
33
292827
42 44
40
37
36 31
1
23456 9 87
11 12 151413 17 1816
32
29 30
42 43 44
40
39
36
18
17
16 19
3598
10 21
20
27
2
26 29 40
4
23 24
41 23
41
10
26
39
5 6
2
1
1 2
CABLE REEL
BLU
BLU
BLU/YEL
GRN
GRN
SUPP B16
B40
SDNP
BRN
PG1
PG2
LG1
LG2
C40 B1
C44 B36
BLK
BRN/YEL
BRN/YEL
G101 No. 14 (7. 5 A)
RED GRY
2
1
RED/BLK RED
PG SG16
15
BLK BRN
C(44P)
B (44P)
A(44P)
Terminal side of female terminals
19 1
WHT
RED RED
WHT
17
CANL
A37 A36 CANH
1
3827
64 1017
54938 10
BLK
B13 BLK/GRN
BRN
C36
IG1
12 V
GAUGE CONTROL MODULE (TACH) No. 2 (15 A)
UNDER-DASH FUSE/RELAY BOX
No. 10 (7. 5 A)
BLU/WHT
RED/BLK
WHT ORN
BAT
IG1
IGNITION SWITCH
BLK
BLU/WHT
FWD RVS
S ST
P R
N
TRANSMISSION RANGE SWITCH D
B22
ATPRVS
ATPFWD
ATPP
ATPR ATPN ATPD ATPS
YEL/RED
B28
G101
B12
B21
BLU
PNK
RED/BLK
WHT
BLK/BLU
B14 B15
WHT/RED
BLU/BLK YEL/GRN
RED
BLU/YEL
BLK
G503
D N
R
P
UNDER-HOOD FUSE/RELAY BOX
No. 2 (IG) (50 A)
No. 1 (100 A)
BATTERY
A/T
GEAR
POSITION
INDICATOR
DRIVER
CIRCUIT
CPU STARTER
CUT RELAY
POWERTRAIN CONTROL
MODULE (PCM)
F-CAN
TRANSCEIVER
DASH-LIGHT
BRIGHTNESS
CONTROL
CIRCUIT
A/T GEAR
POSITION
INDICATOR
PANEL LIGHT
MULTIPLEX INTEGRATED
CONTROL UNIT (MICU)
MULTIPLEX INTEGRATED
CONTROL UNIT (MICU)
SHIFT
INDICATOR
LT GRNLEFT
BLK/WHT LT GRN GRN/ORN
RIGHT
PADDLE SHIFTER
(UPSHIFT SWITCH)
RED/WHT
G504 G504
5V
BLK*
BLK/RED*
BLK16
17
6 16
17
7
PADDLE SHIFTER
(DOWNSHIFT SWITCH)*1: ’06 model
*2: ’07 09 models
PCM Connector Terminal Locations
S
GND
21
08/08/21 14:49:00 61SNR030_140_0266
ProCarManuals.com
DYNOMITE -2009-

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14-279
Circuit Diagram
22
36 444342 27 28
3033 34 35
32 25
20 21 22 16 1817
13 14 15
12
11 789
31
3123
31
456
1514
2120 25
24
34
33
292827
42 44
40
37
36 31
123456 9
87
11 12 151413 17 1816
32
29
30
42 43 44
40
39
36
18
17
16 19
3598
10 2120
27
2
26 29 40
4
23 24
41 23
41
39
10
26
G601
4 3
DN
R
P ST
S RVS
FWD
BKSW LT GRN
LT GRNWHT
No. 12 (15 A)
YEL
BRN
PG SG 16
15
BLK A40
BKSW
WHT/BLK BLK LT BLU
BLK
C(44P)
B(44P)
A(44P)
Terminal side of female terminals
G503
BLK A36
A37
WHT
RED
RED
WHT
1
19 CANH
CANL
17
P
R
N
D
S
GAUGE CONTROL MODULE (TACH)
2 1 3 4 1
3827
65 41017
6
549 38 10
KEYSW KEYSOL
G504
BLU
PNK
PUR
BLK P-PIN
ATPPBLU/BLK 5 4 6 2 1
3
GRY PUR
LT BLU
A24
VCC5
APSB A18
A34
SG5
SG4
A35
A17
APSA VCC4 A25
BLUYEL
BRN
PG1
PG2
LG1
LG2
C40 B1
C44 B36
BRN/YEL
BRN/YEL
G101 PNK
BLK
B13 BLK/GRN
BRN
C36
IG1
12 V
No. 2 (15 A)
UNDER-DASH FUSE/RELAY BOX
No. 10 (7. 5 A)
BLU/WHT
RED/BLK
WHT ORN
SLS
A27
RED
BLK BAT
IG1
IGNITION SWITCH
5V
BLK
BLU/WHT
TRANSMISSION RANGE SWITCH
B22
ATPRVS
ATPFWD
ATPP
ATPR ATPN ATPD
ATPS
YEL/RED
B28
G101
B12
B21
BLU
PNK
RED/BLK
WHT
BLK/BLU
B14 B15
WHT/RED
BLU/BLK YEL/GRN
RED
BLU/YEL
1
2 YEL
PNK
UNDER-HOOD FUSE/RELAY BOX
No. 2 (IG) (50 A)
No. 1 (100 A)
BATTERY
STARTER
CUT
RELAY
SHIFT
LOCK
SOLENOID BRAKE
PEDAL
POSITION
SWITCH
ACCELERATOR
PEDAL
POSITION
SENSOR
KEY
INTERLOCK
SOLENOID IGNITION
KEY
SWITCH UNDER-DASH
FUSE/RELAY BOX
No.35(7.5A)
F-CAN
TRANSCEIVER
CPU A/T
GEAR
POSITION
INDICATOR
DRIVER
CIRCUIT
PARK PIN
SWITCH DASH-LIGHT
BRIGHTNESS
CONTROL
CIRCUIT
POWERTRAIN CONTROL
MODULE (PCM)
MULTIPLEX
INTEGRATED
CONTROL
UNIT (MICU)
SHIFT
INDICATOR
RED/WHT
GRN
G504
BLK/RED* BLK* *1: ’06 model
*2: ’07 09 models
BLK PCM Connector Terminal Locations GND
1
2
08/08/21 14:50:06 61SNR030_140_0281
ProCarManuals.com
DYNOMITE -2009-

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Steering
Steering
EPS (Electrical Power Steering) Components
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Special Tools
. 17-2
Component Location Index . 17-3
Steering Wheel Rotational Play Check . 17-4
Power Assist Check . 17-4
Steering Linkage and Gearbox Inspection . 17-5
Steering Wheel Removal . 17-6
Steering Wheel Disassembly/Reassembly . 17-7
Steering Wheel Installation . 17-8
Column Cover Removal and Installation . 17-9
Steering Column Removal and Installation . 17-10
Steering Column Inspection . 17-14
Steering Lock Replacement . 17-14
Rack Guide Adjustment . 17-15
Tie-rod End Ball Joint Boot Replacement . 17-16
Gearbox Mount Cushion Replacement . 17-17
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Component Location Index
. 17-18
General Troubleshooting Information . 17-19
Memorizing the Torque Sensor Neutral Position . 17-22
DTC Troubleshooting Index . 17-23
Symptom Troubleshooting Index . 17-25
System Description . 17-26
Circuit Diagram . 17-30
DTC Troubleshooting . 17-33
Symptom Troubleshooting . 17-60
EPS Motor Removal and Installation . 17-63
Steering Gearbox Removal and Installation . 17-65
Rack End Removal and Installation . 17-79
Rack Guide Removal/Installation . 17-83
EPS Control Unit Removal/Installation . 17-84
08/08/21 14:53:09 61SNR030_170_0002
ProCarManuals.com
DYNOMITE -2009-

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17-30EPS Components
Circuit Diagram
BATTERY
GAUGE CONTROL
MODULE (TACH) IGNITION
SWITCH
WHT
UNDER-HOOD
FUSE/RELAY BOX
BRN
BLU UNDER-DASH
FUSE/RELAY BOX
DATA LINK
CONNECTOR (DLC) EPS
INDICATOR
BRN
WHT
RED
BLU
WHT
RED
WHT
RED
ORNLT BLU WHT
ECM/PCM
BRN
3
6 F16
Q9
IG1 HOT in ON (II)
and START (III) D2
B1
H1 YEL*
GRY*
No. 10 (7.5 A)
No. 2 (50 A)
No. 4 (7.5 A)
CAN-H 17
1
19
CAN-L IG1
CAN-H A28
A36
A37
CAN-L NEP
CAN-L 6
14
9
SCS
CAN-H
7
K-LINE
No. 1 (70 A)
No. 1 (100 A)
IG11 2
08/08/21 14:54:01 61SNR030_170_0031
ProCarManuals.com
DYNOMITE -2009-