2006 ACURA CSX ignition

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YES
NO
YES
NO YES
NO
22-162
Exterior Lights
DTC Troubleshooting (cont’d)
COMBINATION LIGHT SWITCH 12P CONNECTOR
COMBI GND (BLK)
H/L ON
SW (PNK) UNDER-DASH FUSE/RELAY BOX CONNECTOR S (20P)
COMBI GND
(BLK)
H/L ON SW (PNK) PASSING
SW (RED)
PASSING
SW (RED)
DIMMER SW (LT BLU) DIMMER SW
(LT BLU)
17. Turn the ignition switch to LOCK (0).
18. Do the combination light switch test (see page
22-166).
Go to step 19.
Replace the combination light switch.
19. Disconnect under-dash fuse/relay box connector S (20P).
20. Check for continuity between under-dash fuse/relay box connector S (20P) terminals and the
combination light switch 12P connector terminals
as shown:
Under-dash fuse/
relay box connector S (20P) Combination light
switch 12P connector
512
11 10
12 6
16 4
Go to step 21.
Repair an open in the wire. 21. Check for continuity between under-dash fuse/relay
box connector S (20P) terminals as shown:
From terminal To terminal 12 1, 11, 13, 16
16 1, 11, 13
Repair a short between the wires.
Faulty MICU; replace the under-dash fuse/
relay box (see page 22-66).
Wire side of female terminals
Wire side of female terminals
I s t he combi nat i on l i ght sw i t ch OK ?
Is there continuity? Is there continuity?
08/08/21 14:26:58 61SNR030_220_0164
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22-163
MICU Input Test
UNDER-DASH FUSE/RELAY BOX CONNECTOR E (42P)
BLK RED
GRN WHT
ORN
PNKPUR
WHT
GRY LT BLU UNDER-DASH FUSE/RELAY BOX CONNECTOR F (34P)
UNDER-DASH FUSE/RELAY BOX CONNECTOR G (21P)
UNDER-DASH FUSE/RELAY BOX CONNECTOR S (20P) UNDER-DASH FUSE/RELAY BOX CONNECTOR T (34P) BLK
BLK BLK
RED
RED
RED ORN
PNK BLK
NOTE:
 The MICU turns on the headlights (high beams) in a dimming mode for the Daytime Running Lights under the following conditions:
– With the ignition switch turned to ON (II)
– The headlight switch OFF
– The parking brake is released (parking brake switch OFF)
 The DRL indicator will come on when one of the headlight (high beams) bulbs is blown, or if the high beam wiring has an open circuit with the daytime running lights ON.
 If the vehicle is equipped with an optional remote control engine start system, the daytime running lights will not function when started with the remote start.
1. Before testing the lighting system, troubleshoot the system using B-CAN System Diagnosis Test Mode A (see page 22-93).
2. Check the No. 12 (10 A), No. 13 (10 A), No. 15 (7.5 A), No. 16 (15 A) , (10 A) , No. 17 (15 A) , (10 A) , No. 18 (20 A), No. 19 (15 A), No. 21 (30 A) , (20 A) , and No. 37 (7.5 A) fuses in the under-dash fuse/relay box. If any fuse
is blown, replace it and go to step 3.
1: With HID
2: Without HID
3. Disconnect under-dash fuse/relay box connectors E, F, G, S, and T. NOTE: All connector views are shown from wire side of female terminals.
(cont’d)
1212
12
08/08/21 14:26:58 61SNR030_220_0165
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Cavity WireTest condition Test: Desired result Possible cause if desired result is not
obtained
22-165
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.


































G2 ORN Under all conditions Measure the voltage between
terminal G2 and body ground:
There should be battery voltage.Blown No. 23 (10 A) fuse in the under-
hood fuse/relay box
An open in the wire
G18 WHT Under all conditions Measure the voltage between terminal G18 and body ground:
There should be battery voltage.Blown No. 4 (50 A) fuse in the under-
hood fuse/relay box
An open in the wire
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
S1 ·
S5 ORN
·
BLK Combination light switch OFF Measure the voltage between
terminals S1 and S5:
There should be less than 1 V. Faulty combination light switch
An open in the wire
Combination light switch in any
other position than OFF Measure the voltage between
terminals S1 and S5:
There should be more than 5 V. Faulty combination light switch
A short to ground in the wire
S11 ·
S5 PNK
·
BLK Combination light switch
(Headlight position) ON
Measure the voltage between
terminals S11 and S5:
There should be less than 1 V. Faulty combination light switch
An open in the wire
Combination light switch OFF Measure the voltage between terminals S11 and S5:
There should be more than 5 V. Faulty combination light switch
A short to ground in the wire
S12 ·
S5 RED
·
BLK Combination light switch lever
pulled (Passing)
Measure the voltage between
terminals S12 and S5:
There should be less than 1 V. Faulty combination light switch
An open in the wire
Combination light switch lever
released from passing position Measure the voltage between
terminals S12 and S5:
There should be more than 5 V. Faulty combination light switch
A short to ground in the wire
S13 ·
S5 GRY
·
BLK Combination light switch
(SMALL position) ON
Measure the voltage between
terminals S13 and S5:
There should be less than 1 V. Faulty combination light switch
An open in the wire
Combination light switch OFF Measure the voltage between terminals S13 and S5:
There should be more than 5 V. Faulty combination light switch
A short to ground in the wire
S16 ·
S5 LT BLU
·
BLK Combination light switch
(Dimmer) in high beam position
Measure the voltage between
terminals S16 and S5:
There should be less than 1 V. Faulty combination light switch
An open in the wire
Combination light switch
(Dimmer) in low beam position Measure the voltage between
terminals S16 and S5:
There should be more than 5 V. Faulty combination light switch
A short to ground in the wire
C3 ORN Ignition switch ON (II) Measure the voltage between terminal C3 and body ground:
There should be battery voltage.Faulty ignition switch
An open in the wire
08/08/21 14:26:58 61SNR030_220_0167
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22-169
HID Unit Replacement
AB
1. Turn the combination light switch OFF.
2. Make sure the ignition switch is in LOCK (0)
position, then do the battery terminal
disconnection procedure (see page 22-68).
3. Remove the headlight assembly (see page 22-174).
4. Remove the socket from the HID bulb (see page 22-168).
5. Remove the three mounting screws and the HID unit (A).
6. Disconnect the 4P connector (B) from the HID unit. 7. Install the HID unit in the reverse order of removal.
8. Do the battery terminal reconnection procedure
(see page 22-68).
08/08/21 14:26:59 61SNR030_220_0171
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22-184Turn Signal/Hazard Warning Lights
Circuit Diagram
4
5
5 4
G701BLU
3
2E40
BLK E39
2 3
BRN
G701 BLK
T34
G602BLKSG
E6
G501 BLK TURN SIGNAL/HAZARD WARNING LIGHTS CIRCUIT
G2
G6
BLK
BLK
BLK
BLK
BLK WHT
IG1 HOT in ON (II) and START (III)
P1
P6
M2
G502
F1
G201 2
1
BRN
GRN
BLU
G1
G301 BLU
1
2
MICU
UNDER-DASH FUSE/RELAY BOX IG1
BAT
IGNITION SWITCH
BLU
No. 10 (10 A)
E33
F20
PG
G601 BBACKUP
ORN
M1
YEL
BLK
G401 BLUNo. 23 (10 A)
BATTERY
No. 1 (BAT) (100 A)
UNDER-HOOD FUSE/RELAY BOX
No. 2 (IG) (50 A)
G503 TURN SIGNAL
INDICATOR
LEFT
SIDE
TURN
SIGNAL
LIGHT
(LED) RIGHT
SIDE
TURN
SIGNAL
LIGHT
(LED)
RIGHT
FRONT
TURN
SIGNAL
LIGHT
(24 CP)
LEFT
FRONT
TURN
SIGNAL
LIGHT
(24 CP) RIGHT
REAR
TURN
SIGNAL
LIGHT
(21 W)
LEFT
REAR
TURN
SIGNAL
LIGHT
(21 W) H1
D4
D3
BRN
GRN
08/08/21 14:27:43 61SNR030_220_0186
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DTC B1280:
YES
NO
When the turn signal switch is in left position
When the turn signal switch is in right position
YES
NO When the turn signal switch is in left position
When the turn signal switch is in right position
YES
NO
22-186
Exterior Lights
DTC Troubleshooting
Turn Signal Switch Circuit
Malfunction
NOTE: If you are troubleshooting multiple DTCs, be
sure to follow the instructions in B-CAN System
Diagnosis Test Mode A (see page 22-93).
1. Clear the DTCs with the HDS.
2. Turn the ignition switch to LOCK (0) and then back to ON (II).
3. Operate the turn signal switch in left and right positions, and wait for 6 seconds or more.
4. Check for DTCs with the HDS.
Go to step 5.
Intermittent failure, the system is OK at this
time. Check for loose or poor connections.
5. Select LIGHTING from the BODY ELECTRICAL system select menu, then enter DATA LIST.
6. Check each turn signal switch position value with the DATA LIST menu.
Data List Value
Turn Signal Switch (LEFT) ON
Turn Signal Switch (RIGHT) OFF
Data List Value
Turn Signal Switch (LEFT) OFF
Turn Signal Switch (RIGHT) ON
Faulty MICU; replace the under-dash fuse/
relay box (see page 22-66).
Go to step 7. 7. Disconnect the combination light switch 12P
connector.
8. Check each turn signal switch position value with the DATA LIST menu.
Data List Value
Turn Signal Switch (LEFT) ON
Turn Signal Switch (RIGHT) OFF
Data List Value
Turn Signal Switch (LEFT) OFF
Turn Signal Switch (RIGHT) ON
Replace the combination light switch
(see page 22-166).
Go to step 9.
9. Turn the ignition switch to LOCK (0).
10. Disconnect under-dash fuse/relay box connector S (20P).
Is DTC B1280 indicated?
Are all data list values correct? Do bot h v al ues now show i ng OF F ?
08/08/21 14:27:43 61SNR030_220_0188
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22-202Entry Lights Control System
Component Location Index
CEILING LIGHT
FRONT INDIVIDUAL MAP LIGHTS
MICU
(Built into the under-
dash fuse/relay box) IGNITION KEY SWITCH
DRIVER’S DOOR SWITCH LEFT REAR DOOR SWITCH RIGHT REAR DOOR SWITCH
FRONT PASSENGER’S
DOOR SWITCH
DRIVER’S DOOR LOCK
KNOB SWITCH IGNITION KEY LIGHT
DRIVER’S DOOR
KEY CYLINDER SWITCH Test/Replacement,
page 22-197
Test/Replacement (With moonroof),
page 22-196
Input Test, page 22-204 Test, page 22-207
Test, page 22-138 Test, page 22-207
Test, page 22-140
08/08/21 14:27:53 61SNR030_220_0204
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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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