2006 ACURA CSX lights

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22-203
Circuit Diagram
5 6
R13
ORN
LT BLU
BLK5
7
G501 LOCK
WHT
T23
BRN T24
LT GRN
6
4
UNDER-DASH FUSE/RELAY BOX 7*2
1*1 8*1
9*2K5
G3 D2
PG
SG
PNKR16
G501 BLK
T34
BLK
G401 F20
E2
GRY
LT BLU LT BLU
CEILING LIGHT BLU
PNK FRONT
INDIVIDUAL
MAP LIGHTS
PNKDOOR
IG1Q6
B-CAN
No. 22 (7.5 A)
No. 2 (IG) (50 A)
No. 1 (BAT) (100 A)
OFFUNDER-DASH FUSE/RELAY BOX
(7.5 A) No. 10
PNK
PNK RED
BLU
BRN E17
E33 R6
G601 BLK
E6
BLK
G602 K4
MICU
E3
E37
GRN LT GRN
G504BLKPNK
1
2
WHT
IG1
BAT
UNDER-HOOD FUSE/RELAY BOX
BATTERY IGNITION SWITCH
IG1 HOT in ON (II)
and START (III)
INTERIOR
LIGHT
SWITCH IMMOBILIZER-
KEYLESS CONTROL
UNIT
DRIVER’S
DOOR
SWITCH
(Closed:
Door open) FRONT
PASSENGER’S
DOOR SWITCH
(Closed:
Door open) LEFT
REAR DOOR
SWITCH
(Closed:
Door open)RIGHT
REAR DOOR
SWITCH
(Closed:
Door open) IGNITION
KEY
SWITCH
(Closed:
Key inserted)IMMOBILIZER-
KEYLESS
CONTROL
UNIT
DRIVER’S
DOOR
LOCK
KNOB
SWITCH
UN-
LOCK
IGNITION
KEY LIGHT
(LED)
H1
D2
1 111 :CANline
*1: ’06 07 models
*2: ’08 09 models
TRANSMITTER
08/08/21 14:27:54 61SNR030_220_0205
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DYNOMITE -2009-


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22-204Entry Lights Control System
MICU Input Test
UNDER-DASH FUSE/RELAY BOX CONNECTOR E (42P)
BLK BRN
GRY
UNDER-DASH FUSE/RELAY BOX CONNECTOR F (34P) BLK
BLK LT GRN
GRN
1. Before testing the entry lights control system, troubleshoot the system using B-CAN System Diagnosis Test ModeA (see page 22-93).
2. Check the No. 10 (7.5 A) fuse in the under-dash fuse/relay box. If any fuse is blown, replace it and go to step 3.
3. Disconnect under-dash fuse/relay box connectors E, F, K, R, and T. NOTE: All connector views are shown from wire side of female terminals.
08/08/21 14:27:54 61SNR030_220_0206
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DYNOMITE -2009-

Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained
22-205
UNDER-DASH FUSE/RELAY BOX
CONNECTOR K (8P)
PNK
WHT BLK
PNK
UNDER-DASH FUSE/RELAY BOX
CONNECTOR R (20P)
UNDER-DASH FUSE/RELAY BOX
CONNECTOR T (34P)
4. Inspect the connector and socket terminals to be sure they are all making good contact.  If the terminals are bent, loose or corroded, repair them as necessary and recheck the system.
 IftheterminalslookOK,gotostep5.
5. With the connectors still disconnected, do this input test 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 6.






K4 PNK With the ceiling light
switch in the middle
position
With moonroof:
with the interior light
switch in DOOR
position Attach to ground:
The ceiling light and front
individual map lights should
come on.
Blown No. 22 (7.5 A) fuse in
the under-hood fuse/relay
box
Blown bulb(s)
Faulty ceiling light
Faulty front individual map
light
Faulty interior light switch
(with moonroof)
An open in the wire
(cont’d)
08/08/21 14:27:54 61SNR030_220_0207
ProCarManuals.com
DYNOMITE -2009-

Cavity WireTest condition Test: Desired result Possible cause if desired result is not
obtained
22-206Entry Lights Control System
MICU Input Test (cont’d)
6. Reconnect the connectors to the under-dash fuse/relay box, and do these input tests at the following connectors.
 If any test indicates a problem, find and correct the cause, then recheck the system.
 If all the input tests prove OK, the MICU must be faulty; replace the under-dash fuse/relay box.


































E6 BLK Under all conditions Measure the voltage to ground:
There should be less than 0.5 V.Poor ground (G602)
An open in the wire
E33 BLK Under all conditions Measure the voltage to ground: There should be less than 0.5 V.Poor ground (G601)
An open in the wire
F20 BLK Under all conditions Measure the voltage to ground: There should be less than 0.5 V.Poor ground (G401)
An open in the wire
T34 BLK Under all conditions Measure the voltage to ground: There should be less than 0.5 V.Poor ground (G501)
An open in the wire
E37 GRN Driver’s door open Measure the voltage to ground: There should be less than 1 V.Faulty driver’s door switch
An open in the wire
Driver’s door closed Measure the voltage to ground: There should be more than 5 V. Faulty driver’s door switch
A short to ground in the wire
E3 LT GRN Front passenger’s door open Measure the voltage to ground: There should be less than 1 V.Faulty front passenger’s door switch
An open in the wire
Front passenger’s door closed Measure the voltage to ground: There should be more than 5 V. Faulty front passenger’s door switch
A short to ground in the wire
E2 GRY Right rear door open Measure the voltage to ground: There should be less than 1 V.Faulty right rear door switch
An open in the wire
Right rear door closed Measure the voltage to ground: There should be more than 5 V. Faulty right rear door switch
A short to ground in the wire
E17 BRN Left rear door open Measure the voltage to ground: There should be less than 1 V.Faulty left rear door switch
An open in the wire
Left rear door closed Measure the voltage to ground: There should be more than 5 V. Faulty left rear door switch
A short to ground in the wire
R6 PNK Ignition key inserted into the ignition switch Measure the voltage to ground:
There should be less than 1 V. Poor ground (G504)
Faulty ignition key switch
An open in the wire
Ignition switch OFF and ignition
key removed from the ignition
switch Measure the voltage to ground:
There should be more than 5 V.
Faulty ignition key switch
A short to ground in the wire
T23 WHT Driver door lock knob switch unlocked Measure the voltage to ground:
There should be less than 1 V. Poor ground (G501)
Faulty driver door lock knob switch
An open in the wire
Driver door lock knob switch
locked Measure the voltage to ground:
There should be more than 5 V. Faulty driver door lock knob switch
A short to ground in the wire
08/08/21 14:27:54 61SNR030_220_0208
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DYNOMITE -2009-

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22-238Gauges
Component Location Index
OIL PRESSURE SWITCH
ECM/PCMBRAKE FLUID LEVEL SWITCH
FUEL GAUGE SENDING UNIT
GAUGE CONTROL MODULE
(TACH) ODOMETER SELECT/RESET SWITCHDASH LIGHTS BRIGHTNESS CONTROLLER
GAUGE CONTROL MODULE
(SPEEDO)
PARKING BRAKE SWITCH
Test, page 8-9
Test, page 19-11
Test, page 11-340
Self-diagnostic Function, page 22-241
Input Test, page 22-271
Rewriting the ODO Data and Transferring Maintenance
Minder Data to a New Gauge
Control Module,
page 22-276
Replacement, page 22-277
Outside Air Temperature Indicator Calibration, page 22-279 Test/Replacement, page 22-278Test/Replacement, page 22-278
Input Test, page 22-274
Replacement, page 22-277
Test, page 19-11
08/08/21 14:28:53 61SNR030_220_0240
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Entering the self-diagnostic function with the HDS
Entering the self-diagnostic function (manual method)
22-241
Self-diagnostic Function
ON (II)
OFF ON
OFF ON
Ignition
Switch
Lighting
Switch
SEL/RESET
Switch
5sec.
5sec.
LOCK (0)
Before troubleshooting the gauge system, refer to multiplex integrated control system B-CAN System Diagnosis Test
Mode A (see page 22-93).
The gauge control module (tach) has a self-diagnostic function shown, and also has a customizable reset function.
 The beeper drive circuit check.
 The indicator drive circuit check.
 The switch input test.
 The LCD segments check.
 The gauges drive circuit check (Tachometer, Fuel gauge, Coolant temperature gauge).
 The communication line check (B-CAN, F-CAN, and UART lines).
NOTE: Indicators are also controlled via the communication line.
Using the HDS, select Body Electrical, Gauges, then Function Test and do the self-diagnostic function.
Before doing the self-diagnostic function, check the No. 10 (7.5 A) fuse in the under-dash fuse/relay box and the No. 23
(10 A) fuse in the under-hood fuse/relay box. 1. Push and hold the SEL/RESET switch button.
2. Turn the headlights ON.
3. Turn the ignition switch to ON (II).
4. Within 5 sec., turn the headlights OFF, then ON and OFF again.
5. Within 5 sec., release the SEL/RESET switch button, and then push and release the button three times repeatedly.
NOTE:  While in the self-diagnostic mode, the dash lights brightness controller operates normally.
 While in the self-diagnostic mode, the SEL/RESET switch button is used to start the Beeper Drive Circuit Test and the Gauge Drive Circuit Check.
 If the vehicle speed exceeds 2 km/h (1.2 mph) or the ignition switch is turned to LOCK (0), the self-diagnostic mode ends.
(cont’d)
Move to self-diagnostic mode.
08/08/21 14:35:11 61SNR030_220_0243
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The Indicator Drive Circuit Check
Switch Input Check
The Beeper Drive Circuit Check
The LCD Segment Check
The Gauge Drive Circuit Check
22-242Gauges
Self-diagnostic Function (cont’d)
OFF ON
OFF ON
OFF ON
OFF ON
Gauge needles
Beeper
5sec.
Self-diagnostic
mode
SEL/RESET
SWITCH
When entering the self-diagnostic mode, the following indicators blink:
A/T gear position indicator, ABS indicator, brake system indicator, charging system indicator, cruise control indicator,
cruise main indicator, door indicator, DRL indicator, EPS indicator, fog light indicator , high beam indicator,
immobilizer indicator, lights-on indicator, low fuel indicator, low oil pressure indicator, low tire pressure indicator ,
maintenance minder indicator, malfunction indicator lamp (MIL), REV limit indicator (TYPE S model), seat belt
reminder indicator, security indicator, side airbag cutoff indicator, SRS indicator, TPMS indicator , trunk indicator,
VSA activation indicator , VSA indicator , and washer fluid level indicator.
1: ’07 TYPE S and ’08-09 models
2: ’08-09 models
3: TYPE S and ’08 Premium and ’09 models
At the initial stage of the self-diagnostic function, the beep sounds intermittently, the beeper sounds continuously
when any of the following switch inputs are switched from OFF to ON:
Cruise control main, dash lights brightness controller volume ( ), ( ) button, mph km/h switch, parking brake switch,
SEL/RESET switch, SET, RESUME, CANCEL switches, and VSA OFF switch . : ’07 TYPE S and ’08-09 models
When entering the self-diagnostic mode, the beeper sounds five times.
When entering the self-diagnostic mode, all the segments blink five times.
When entering the self-diagnostic mode, the tachometer needle sweeps from the minimum position to maximum
position, then returns to the minimum position.
NOTE:
After the beeper stops sounding and the gauge needle returns to the minimum position, pushing the SEL/RESET
switch starts the Beeper Drive Circuit Check (one beep) and the Gauge Drive Circuit Check again.
The check cannot be started again until the gauge needle returns to the minimum position.
If the needle fails to sweep, or the beeper does not sound, replace the gauge control module (tach).
3 2
2
11
The needle sweeps from the
minimum position to the
maximum position, then return
to the minimum position.
08/08/21 14:35:12 61SNR030_220_0244
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Except TYPE S model
22-244Gauges
Circuit Diagram - Gauge Control Module (Tach)
UART
WHT
IG1 HOT in ON (II) and START (III)
UNDER-HOOD FUSE/RELAY BOX
5V



MAIN CIRCUIT
MAIN CIRCUIT
MICU
  LT GRN
20
21
PNK
124
CAN L
CAN H 

 CHIME
BRN
WHT BRN
RED 19
1
WHT No. 2 (IG) (50 A)
GAUGE CONTROL MODULE (TACH) 18 17 TACHOMETER ORN
IG1
BAT
BLU
WHT
No. 23 (10 A)
BATTERY
IGNITION SWITCH
No. 1 (BAT) (100 A)
(7.5 A) No. 10UNDER-DASH
FUSE/RELAY
BOX
GAUGE CONTROL
MODULE (SPEEDO)
DRIVE
CIRCUIT DIMMING
CIRCUIT
PARKING
BRAKE
REMINDER
SEAT
BELT
REMINDER
KEY-IN
REMINDER
F-CAN
TRANSCEIVER B-CAN
TRANSCEIVER
IMMOBILIZER-
KEYLESS
CONTROL UNIT GAUGE
CONTROL
MODULE
(SPEEDO) 10 V
STABILIZING
CIRCUIT
HIGH BEAM
INDICATOR
(LED)
LIGHTS-ON
REMINDER
CLIMATE CONTROL
UNIT
HANDSFREELINK
CONTROL UNIT*3 IMMOBILIZER
INDICATOR
(LED)
ON/OFF
5V
5V
CONTROL
CIRCUIT
H1
D4 G2D2
Q1 P5 P10 Q9
A
ECM/PCM
ABS MODULATOR-
CONTROL UNIT*1
VSA MODULATOR-
CONTROL UNIT*2
YAW RATE-LATERAL
ACCELERATION SENSOR*2
EPS CONTROL UNIT
TPMS CONTROL UNIT*2
DATA LINK CONNECTOR
SRS UNIT







 MICU
08/08/21 14:35:12 61SNR030_220_0246
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