2006 ACURA CSX climate control

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22-252Gauges
Circuit Diagram - Gauge Control Module (Tach) (cont’d)
RED




GAUGE CONTROL MODULE (TACH)
MIAN CIRCUIT INDICATOR DRIVE CIRCUIT
16
G504
15
14
13
91011
C
B
A
G503INDICATOR DRIVE CIRCUIT
BLK
BLK
RED
YEL LT GRN ORN
LIGHTS-ON/FOG LIGHT
INDICATOR
DIMMING CIRCUIT
CRUISE CONTROL
SET/RESUME/CANCEL
SWITCH CRUISE
CONTROL
INDICATOR
(LED)
DASH LIGHTS
BRIGHTNESS
CONTROLLER
COMPULSORY
TURNING-ON
CIRCUIT
CRUISE CONTROL
DIMMING CIRCUIT
LIGHTS-ON/FOG LIGHT
INDICATOR
CRUISE
CONTROL
MAIN
SWITCH FAIL-SAFE
CIRCUIT
MALFUNCTION
INDICATOR
LAMP (MIL)
(LED)
CRUISE
MAIN
INDICATOR
(LED)
AMBIENT LIGHT
SEAT HEATER SWITCHES LIGHT
DRIVER’S FOOTWELL LIGHT
FRONT PASSENGER’S
FOOTWELL LIGHT NAVIGATION UNIT
HAZARD WARNING SWITCH LIGHT
MOONROOF SWITCH LIGHT
STEERING SWITCHES LIGHT
CLIMATE CONTROL UNIT
DASH LIGHTS BRIGHTNESS
CONTROLLER
FRONT PASSENGER’S
AIRBAG CUTOFF INDICATOR
VSA OFF SWITCH








B
08/08/21 14:35:16 61SNR030_220_0254
ProCarManuals.com
DYNOMITE -2009-

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22-256 Gauges
Circuit Diagram - Dash Lights Brightness Controller
RED
GRY
BRN45
YEL 6
BLU 7
PUR
BLK
2176
4
G501 13
RED
14
16
BLK BLK
G503
13
RED
16
BLK BLK
G504 15
MAIN CIRCUIT
WHT BRN
No. 2 (IG) (50 A)
GAUGE CONTROL MODULE (TACH) 18 17
ORN
IG1
BAT
BLU
WHT
No. 23 (10 A)
BATTERY
IGNITION SWITCH
No. 1 (BAT) (100 A)
(7.5 A) No. 10
UNDER-DASH
FUSE/RELAY
BOX IG1 HOT in ON (II)
and START (III)
DASH LIGHTS BRIGHTNESS CONTROLLER and
ODOMETER SELECT/RESET SWITCH
No. 14 (7.5 A) FUSE
(UNDER-DASH
FUSE/RELAY BOX)
GAUGE CONTROL
MODULE (TACH) km/h
mph
SEL/
RESET
ILLUMI
()
ILLUMI
()
H1
D4 G2D2
UNDER-HOOD FUSE/RELAY BOX
5
3LIGHTS
(LED) Q1 Q9
MICU A/T GEAR POSITION INDICATOR
PANEL LIGHT
AMBIENT LIGHT
SEAT HEATER SWITCHES LIGHT
DRIVER’S FOOTWELL LIGHT*1
FRONT PASSENGER’S
FOOTWELL LIGHT*1
CLIMATE CONTROL UNIT*2
DASH LIGHTS BRIGHTNESS
CONTROLLER*2
FRONT PASSENGER’S
AIRBAG CUTOFF INDICATOR*2
VSA OFF SWITCH*2









AUDIO UNIT
NAVIGATION UNIT
HAZARD WARNING SWITCH LIGHT
MOONROOF SWITCH LIGHT
STEERING SWITCHES LIGHT
CLIMATE CONTROL UNIT*1
DASH LIGHTS BRIGHTNESS
CONTROLLER*1
FRONT PASSENGER’S
AIRBAG CUTOFF INDICATOR*1
VSA OFF SWITCH*1









*1: TYPE S model
*2: Except TYPE S model
08/08/21 14:35:17 61SNR030_220_0258
ProCarManuals.com
DYNOMITE -2009-

¦§ ¦ §¦ §
¦§
¦§
µ
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Cavity Wire Test condition
Test: Desired result Possible cause if desired result
is not obtained
Cavity Wire Test condition Test: Desired result Possible cause if desired result
is not obtained
22-272Gauges
Gauge Control Module (Tach) Input Test (cont’d)
4. With the connector still disconnected, do these input tests at the following connector.
 If any test indicates a problem, find and correct the cause, then recheck the system.
 If all the input tests prove OK, go to step 5.




20
2 LT GRN
GRY Disconnect the
gauge control
module (speedo)
12P connector Check for continuity between
terminal No. 20 No. 2 and
gauge control module (speedo)
12P connector terminal No. 7
No. 1 :
There should be continuity. An open in the wire
Check for continuity to ground:
There should be no continuity. A short to ground in the wire
13 RED Combination light switch ON Attach to ground:
The illuminations of the seat
heater switches and the
ambient light should come on
full bright. Faulty LEDs
An open in the wire
14 RED Combination light switch ON Attach to ground:
The illuminations of the dash
lights, the audio unit, the
steering wheel switches, and
the climate control unit lights
should come on full bright. Faulty LEDs
An open in the wire
: TYPE S model
5. Reconnect the connector to the gauge control module (tach), and do these input tests at the following connector.  If any test indicates a problem, find and correct the cause, then recheck the system.
 If all the input tests prove OK, the gauge control module (tach) must be faulty; replace it.













15 BLK Under all
conditions Measure the voltage to ground:
There should be less than 0.5 V. Poor ground (G503)
An open in the wire
16 BLK Under all conditions Measure the voltage to ground:
There should be less than 0.5 V. Poor ground (G504)
An open in the wire
17 BRN Ignition switch ON (II) Measure the voltage to ground:
There should be battery voltage. Blown No. 10 (7.5 A) fuse in
the under-dash fuse/relay box
An open in the wire
18 WHT Under all conditions Measure the voltage to ground:
There should be battery voltage.
An open in the wire
4 BRN Ignition switch ON (II), ILLUMI ( )
button pressed Measure the voltage to ground:
There should be less than 1 V.
Poor ground (G501)
Faulty dash light brightness
controller and odometer
select/reset switch
An open in the wire
Ignition switch ON
(II), ILLUMI ( )
button released Measure the voltage to ground:
There should be more than 5 V.
Faulty dash light brightness
controller and odometer
select/reset switch
A short to ground in the wire
Blown No. 23 (10 A) fuse in the
under-hood fuse/relay box
08/08/21 14:35:58 61SNR030_220_0274
ProCarManuals.com
DYNOMITE -2009-

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22-282 Reminder Systems
Circuit Diagram


MICU







 ORN
(10 A) No. 23
BLK1 2
SRS UNIT
G602
B11
A12
A11 YEL
WHT REDRED
WHT
ORN28
LT GRN BLK16
G504
INDICATOR DRIVE CIRCUIT
MICU
  ECM/PCM MAIN CIRCUIT
21
PNK
124
CAN L
CAN H


 CHIME
WHT
BRN
RED 19
1
WHT No. 2 (IG) (50 A)
GAUGE CONTROL MODULE (TACH) 18
17
IG1
BAT
BLU
WHT
UNDER-HOOD FUSE/RELAY BOX
BATTERY IGNITION SWITCH
No. 1 (BAT) (100 A)
(7.5 A) No. 10UNDER-DASH
FUSE/RELAY
BOX
DRIVE
CIRCUIT
PARKING
BRAKE
REMINDER
SEAT
BELT
REMINDER
KEY-IN
REMINDER
F-CAN
TRANSCEIVER B-CAN
TRANSCEIVERLIGHTS-ON
INDICATOR
(LED)
IG1 HOT in ON (II)
and START (III)
ABS MODULATOR-
CONTROL UNIT*1 LIGHTS-ON INDICATOR
DIMMING CIRCUIT
PARKING
BRAKE
SWITCH
(Closed:
Lever pulled)
DRIVER’S
SEAT BELT
BUCKLE
SWITCH
(Closed:
unbuckled) SEAT BELT
REMINDER
INDICATOR
(LED)
BRAKE
SYSTEM
INDICATOR
(LED)COMPULSORY
TURNING-ON
CIRCUIT
LIGHTS-ON
REMINDER
CLIMATE
CONTROL
UNIT
IMMOBILIZER-
KEYLESS
CONTROL UNIT
HANDSFREELINK
CONTROL UNIT*4
H1
D4 D2
Q1 Q9
G2 :CANline
1
VSA MODULATOR-
CONTROL UNIT*2
YAW RATE-LATERAL
ACCELERATION SENSOR*2
DATA LINK CONNECTOR
EPS CONTROL UNIT
TPMS CONTROL UNIT*3 10 V
STABILIZING
CIRCUIT
*1: ’06 07 Touring and Premium models
*2: ’07 TYPE S and ’08 09 models
*3: ’08 09 models
*4: ’09 model with navigation system
MICU
A
B
08/08/21 14:36:02 61SNR030_220_0284
ProCarManuals.com
DYNOMITE -2009-

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22-283
R16
PNK
Q6
PNK
PNK
B-CAN PNK
R6
G504 BLK
2 1
PNK
GRN E37 MICU
UNDER-DASH FUSE/RELAY BOX
9 S1
ORN S5
S11S13
BLK
PNK
GRY
12
(
()
1011
)
OFF
COMBINATION LIGHT SWITCH DRIVER’S
DOOR SWITCH
(Closed :
Door open)
IGNITION
KEY
SWITCH
(Closed :
Key inserted)IMMOBILIZER-
KEYLESS
CONTROL UNIT
GAUGE CONTROL
MODULE (TACH)




MICU
CLIMATE CONTROL
UNIT
IMMOBILIZER-
KEYLESS
CONTROL UNIT
HANDSFREELINK
CONTROL UNIT*
1 : CAN line
*: ’09 model with navigation system
A
08/08/21 14:36:02 61SNR030_220_0285
ProCarManuals.com
DYNOMITE -2009-

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22-304Power Mirrors
Component Location Index
POWER MIRRORS/
POWER MIRROR DEFOGGERS
POWERMIRRORSWITCH
POWER MIRROR
DEFOGGER RELAY
UNDER-HOOD FUSE/
RELAY BOX
CLIMATE CONTROL UNIT
(Has built-in rear window defogger switch/
mirror defogger switch)
Function Test, page 22-306
Power Mirror Actuator Test, page 22-307
Mirror Actuator Replacement, page 22-308
Test/Replacement, page 22-307
Test, page 22-70
08/08/21 14:36:51 61SNR030_220_0306
ProCarManuals.com
DYNOMITE -2009-

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22-310Rear Window Defogger
Component Location Index
REAR WINDOW DEFOGGER RELAY
UNDER-HOOD FUSE/RELAY BOX
REAR WINDOW DEFOGGER
CLIMATE CONTROL UNIT
(Has built-in rear window defogger switch/
mirror defogger switch) Test, page 22-70
Function Test, page 22-312
Defogger Wire Repair, page 22-313
Replacement, page 21-75
08/08/21 14:36:54 61SNR030_220_0312
ProCarManuals.com
DYNOMITE -2009-

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22-311
Circuit Diagram
IG2 HOT in ON (II) G12C3
CLIMATE CONTROL UNIT LT GRN
BLK
G603 2 BRN
LT GRN LT GRN
BLK No. 2 (IG) (50 A)
G801
1
RED RED UNDER-HOOD FUSE/RELAY BOX
G504BLK
RED
BRN
No. 8
(30 A)
No. 36
(HAC)
(10 A)
ORN
IGNITION SWITCH
IG2
BAT
WHT
BATTERY
No. 1 (BAT) (100 A)
UNDER-DASH
FUSE/RELAY
BOX
REAR
WINDOW
DEFOGGER
RELAY
REAR WINDOW
DEFOGGER
SWITCH
INDICATOR
(Rear window defogger
switch and defogger
timer circuit built into
the climate control unit.)
NOISE
CONDENSER REAR
WINDOW
DEFOGGER POWER
MIRROR
DEFOGGER
RELAY
H1
D1
J4 F17 F8
2 3
5
1
1 MICU
Q16
08/08/21 14:36:55 61SNR030_220_0313
ProCarManuals.com
DYNOMITE -2009-