warning light ACURA CSX 2006 Service User Guide


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22-188Turn Signal/Hazard Warning Lights
MICU Input Test
UNDER-DASH FUSE/RELAY BOX CONNECTOR E (42P)
BLK
BRN BLU UNDER-DASH FUSE/RELAY BOX CONNECTOR F (34P)
UNDER-DASH FUSE/RELAY BOX CONNECTOR G (21P)
YEL BLK
BLK BLU
GRN GRN
1. Before troubleshooting the turn signal/hazard warning lights system, troubleshoot the system using B-CAN
System Diagnosis Test Mode A (see page 22-93).
2. Check the No. 10 (7.5 A) fuse in the under-dash fuse/relay box. If the fuse is blown, replace it and go to step 3.
3. Disconnect under-dash fuse/relay box connectors E, F, G, M, P, Q, R, S, and T. NOTE: All connector views are shown from wire side of female terminals.
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Cavity Wire Test conditionTest: Desired result Possible cause if result desired is
not obtained
22-190Turn Signal/Hazard Warning Lights
MICU Input Test (cont’d)
5. With the connectors still disconnected, 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, go to step 6.
























E39 BRN Under all conditions Connect terminals G2 and E39
with a jumper wire:
The right rear turn signal light
should come on.Poor ground (G701)
Blown bulb
An open in the wire
E40 BLU Under all conditions Connect terminals G2 and E40 with a jumper wire:
The left rear turn signal light
should come on.Poor ground (G701)
Blown bulb
An open in the wire
F1 BRN Under all conditions Connect terminals G2 and F1 with a jumper wire:
The right front turn signal light
should come on.Poor ground (G201)
Blown bulb
An open in the wire
G1 BLU Under all conditions Connect terminals G2 and G1 with a jumper wire:
The left front turn signal light
should come on.Poor ground (G301)
Blown bulb
An open in the wire
M1 BLU Under all conditions Connect terminals G2 and M1 with a jumper wire:
The left side turn signal light
should come on.Poor ground (G503)
Blown LED
An open in the wire
M2 GRN Under all conditions Connect terminals G2 and M2 with a jumper wire:
The right side turn signal light
should come on.Poor ground (G502)
Blown LED
An open in the wire
P1 GRN Under all conditions Connect terminals G2 and P1 with a jumper wire:
The right turn signal indicator
should come on.Poor ground (G504)
Faulty gauge control module
(speedo)
An open in the wire
P6 BLU Under all conditions Connect terminals G2 and P6 with a jumper wire:
The left turn signal indicator
should come on.Poor ground (G504)
Faulty gauge control module
(speedo)
An open in the wire
08/08/21 14:27:44 61SNR030_220_0192
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Cavity Wire Test conditionTest: Desired result Possible cause if desired result is
not obtained
22-191
6. Reconnect 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
G6 YEL Under all conditions Measure the voltage between terminal G6 and body ground:
There should be battery voltage.Blown No. 10 (10 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
R1 WHT Under all conditions Measure the voltage to ground: There should be battery voltage.Faulty under-dash fuse/relay box
Q11 GRN Hazard warning switch ON Measure the voltage to ground:
There should be battery voltage. Blown No. 23 (10 A) fuse in the
under-hood fuse/relay box
Faulty hazard warning switch
An open in the wire
S18 ·
S5 BRN
·
BLK Turn signal switch in
right position
Measure the voltage between
terminals S18 and S5:
There should be less than 0.5 V. Faulty combination light switch
An open in the wire
Turn signal switch in
left or neutral
position Measure the voltage between
terminals S18 and S5:
There should be 5 V or more. Faulty combination light switch
A short to ground in the wire
S19 ·
S5 LT
GRN ·
BLK Turn signal switch in
left position
Measure the voltage between
terminals S19 and S5:
There should be less than 0.5 V. Faulty combination light switch
An open in the wire
Turn signal switch in
right or neutral
position Measure the voltage between
terminals S19 and S5:
There should be 5 V or more. Faulty combination light switch
A short to ground in the wire
08/08/21 14:27:44 61SNR030_220_0193
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22-19222-192 Turn Signal/Hazard Warning Lights
Hazard Warning Switch Test/
Replacement
Side Turn Signal Light Replacement
A
A
Terminal
Position 12
4
5
OFF ON A
A
B
1. Remove the center panel.  With audio:– ’06-08 models (see page 23-80)
– ’09 model (see page 23-256)
 With navigation: – ’06-08 models (see page 23-155)
– ’09 model (see page 23-355)
2. Remove the screws and the hazard warning switch (A).
3. Check for continuity between the terminals in each switch position according to the table.
4. If the continuity is not as specified, replace the bulb (A) or the hazard warning switch.
5. Install the hazard warning switch in the reverse order of removal. 1. Remove the mirror holder (see page 20-34).
2. Remove the four screws and the mirror visor (A).
3. Disconnect the 2P connector (A) from the side turn
signal light (B), then remove the side turn signal
light.
4. Install the side turn signal light in the reverse order of removal.
08/08/21 14:27:45 61SNR030_220_0194
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Î
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
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Î
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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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
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