2006 ACURA CSX heater

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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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Special Tools Required
Relay Test
Normally-open type
22-70Relays
Power Relay Test
07AAC-000A1A0
31
42
3 42
1
Relay puller 07AAC-000A1A0
Use this chart to identify the type of relay, then do the
test listed for it. Carefully remove the relays using the
relay puller. Do not use pliers. Pliers will damage the
relay.
A/C compressor clutch relay Normally- open type
A/C condenser fan relay
Blower motor relay
Console accessory power socket
relay
Electronic throttle control system
(ETCS) control relay
Fog light relay
Front accessory power socket
relay
Ignition coil relay
PGM-FI main relay 1 (FI MAIN)
PGM-FI main relay 2 (FUEL PUMP)
PGM-FI subrelay
Power window relay
Radiator fan relay
Rear window defogger relay
Seat heater relay (HIGH)
Starter cut relay
Fan control relay Five-terminal
type
Power mirror defogger relay
Seat heater relay (LOW)
: TYPE S and ’08 PREMIUM and ’09 models Check for continuity between the terminals.
 There should be continuity between terminals No. 1 and No. 2 when the battery positive terminal is
connected to terminal No. 4, and the battery negative
terminal is connected to terminal No. 3.
 There should be no continuity between terminals No. 1 and No. 2 when power is disconnected.
08/08/21 14:24:05 61SNR030_220_0072
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DYNOMITE -2009-

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22-246Gauges
Circuit Diagram - Gauge Control Module (Tach) (cont’d)
G504
G503
SHIFT INDICATOR
AUDIO UNIT
NAVIGATION UNIT
HAZARD WARNING SWITCH LIGHT
MOONROOF SWITCH LIGHT
STEERING SWITCHES LIGHT
RED







GAUGE CONTROL MODULE (TACH)
MIAN CIRCUIT INDICATOR DRIVE CIRCUIT
16
15
14
13
91011
C
B
A
INDICATOR 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
A/T GEAR POSITION
INDICATOR COMPULSORY
TURNING-ON
CIRCUIT
CRUISE
DIMMING
CIRCUIT
LIGHTS-ON/FOG LIGHT
INDICATOR
CRUISE
CONTROL
MAIN
SWITCH FAIL-SAFE
CIRCUIT
COMPULSORY
TURNING-OFF
CIRCUIT
MALFUNCTION
INDICATOR
LAMP (MIL)
(LED)
A/T GEAR POSITION INDICATOR
PANEL LIGHT
AMBIENT LIGHT
SEAT HEATER SWITCHES LIGHT
CLIMATE CONTROL UNIT
DASH LIGHTS BRIGHTNESS
CONTROLLER
FRONT PASSENGER’S
AIRBAG CUTOFF INDICATOR
VSA OFF SWITCH CRUISE
MAIN
INDICATOR
(LED)
C
B
08/08/21 14:35:13 61SNR030_220_0248
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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
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DYNOMITE -2009-

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´
µ
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
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¦§ ¦ §¦ §
¦§
¦§
µ
µ
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
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DYNOMITE -2009-

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22-298Seat Heaters
Component Location Index
SEAT HEATER RELAY (HIGH)
DRIVER’S SEAT HEATER RELAY BOX
DRIVER’S SEAT CUSHION HEATER
DRIVER’S SEAT BACK HEATER
FRONT PASSENGER’S
SEAT CUSHION HEATER
SEAT HEATER RELAY (LOW)
FRONT PASSENGER’S SEAT HEATER RELAY BOX
SEAT HEATER RELAY (HIGH) SEAT HEATER RELAY (LOW)
Test, page 22-70
Test, page 22-302
Test, page 22-302
Test, page 22-303
Test, page 22-70
Test, page 22-70 Test, page 22-70
08/08/21 14:36:10 61SNR030_220_0300
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22-299
DRIVER’S SEAT HEATER SWITCHFRONT PASSENGER’S SEAT HEATER SWITCH
Test/Replacement, page 22-302 Test/Replacement, page 22-302
08/08/21 14:36:48 61SNR030_220_0301
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