headlight ACURA CSX 2006 Service Workshop Manual


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Special Tools Required
YES
NO YES
NO
22-170Exterior Lights
HID Lamp System Troubleshooting
A
B
A transient high tension (25,000 V) occurs at the
bulb sockets or the high intensity discharge (HID)
lamps when the combination light switch is turned
ON, it may cause serious electrical shock or
electrocution if you do not observe the cautions.
 Never turn on the combination light switch before fitting the HID bulbs to their bulb sockets
and completing the reassembly of the headlight
assembly.
 Do not service the headlights assembly in wet conditions, such as rain or snow, near a sprinkler
system, or when your hands are wet to prevent
electrocution.
 Do not touch the surface of the HID bulbs with your bare hands and do not stain it with any oils
and fats.
 Do not disassemble the inverter unit and the igniter unit.
 Do not turn on the HID bulb by using a power source other than the battery mounted on your
vehicle.
HID bulb test light 07AAJ-S3MA100
NOTE: Before troubleshooting the HID Lamp System,
do the multiplex integrated control system
troubleshooting using B-CAN System Diagnosis Test
Mode A (see page 22-93). 1. Check the No. 16 (15 A), No. 17 (15 A), and No. 21 (30 A) fuses in the under-dash fuse/relay box.
Go to step 2.
Replace the fuse(s), and recheck.
2. Turn the combination light switch OFF.
3. Do the battery terminal disconnection procedure (see page 22-68). 4. Remove the socket from the HID bulb (see page
22-168).
5. Check for corrosion (A) and traces of electrical arcing (B) at the socket mating part.
Go to step 7.
Replace the socket, and recheck.
Ar e f uses OK ? I s t he sock et cor r od ed or bur nt ?
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YES
NO YES
NO
22-171
B
A
07AAJ-S3MA100 HID UNIT 2P CONNECTOR
BLK
6. Connect the HID bulb test light (A) to the socket (B).
7. Do the battery terminal reconnection procedure(see page 22-68).
8. Turn the combination light (headlight) switch ON.
Replace the original HID bulb (see page
22-168).
Go to step 10.
9. Turn the combination light (headlight) switch OFF.
10. Do the battery terminal disconnection procedure (see page 22-68).
11. Disconnect the HID bulb test light from the socket.
12. Do the battery terminal reconnection procedure (see page 22-68).
13. Disconnect the HID unit 2P connector.
14. Turn the combination light (headlight) switch ON. 15. Check for continuity between the HID unit 2P
connector terminal No. 1 and body ground.
Go to step 16.
Repair an open in the wire between the HID
unit and body ground. If the wire is OK, check for
poor ground at G201 or G301.
(cont’d)
Wire side of female terminals
Does t he bul b i n t he t est l i ght come on? Is there continuity?
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YES
NO
LEFT HEADLIGHT
RIGHT HEADLIGHT
YES
NO
22-172Exterior Lights
HID Lamp System Troubleshooting (cont’d)
HID UNIT 2P CONNECTOR
LEFT HEADLIGHT (PUR)
RIGHT HEADLIGHT (GRN)
HID UNIT 2P CONNECTOR (LEFT HEADLIGHT)PUR
UNDER-DASH FUSE/RELAY BOX CONNECTOR G (21P)
UNDER-DASH FUSE/RELAY BOX CONNECTOR F (34P) HID UNIT 2P CONNECTOR (RIGHT HEADLIGHT) GRN
16. Measure the voltage between the HID unit 2P
connector terminal No. 2 and body ground.
Substitute a known-good HID unit, and
recheck. If the symptom/indication goes away,
replace the original HID unit.
Go to step 17.
17. Disconnect under-dash fuse/relay box connector G (21P) and/or F (34P) .1: Left headlight
2: Right headlight 18. Check for continuity between under-dash fuse/relay
box G (21P) terminal No. 17 or F (34P) terminal
No. 4 and HID unit 2P connector terminal No. 2.
Replace the under-dash fuse/relay box.
Repair an open in the wire between the
under-hood fuse/relay box and the HID unit.
12
Wire side of female terminals
Wire side of female terminalsWire side of female terminals
Wire side of female terminals Wire side of female terminals
Is there battery voltage?
Is there continuity?
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22-173
Headlight Adjustment
A A
7.5 m (25 ft)
A A B
Headlights become very hot during use; do not
touch them or any attaching hardware immediately
after they have been turned off.
Before adjusting the headlights:  Park the vehicle on a level surface.
 Make sure the tire pressures are correct.
 The driver or someone who weighs the same should sit in the driver’s seat.
1. Clean the outer lens so that you can see the center (A) of the headlights. 2. Park the vehicle in front of a wall or a screen (A).
3. Turn the low beams on.
4. Determine if the headlights are aimed properly.
Vertical adjustment:
Measure the height of the headlights (A).
Adjust the cut line (B) to the lights height.
(cont’d)
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22-17422-174 Exterior Lights
Headlight Adjustment (cont’d) Headlight Replacement
U: UP
D: DOWN
A A
D B
C
A
5. If necessary, open the hood and adjust the
headlights to local requirements by turning the
adjusters (A). A transient high tension (25,000 V) occurs at the bulb sockets or the high intensity discharge (HID)
lamps when the combination light switch is turned
ON, it may cause serious electrical shock or
electrocution if you do not observe the cautions.
Do not service the headlights assembly in wet
conditions, such as rain or snow, near a sprinkler
system, or when your hands are wet to prevent
electrocution.
1. Remove the front bumper (see page 20-146).
2. Remove the connectors (A) from the headlight assembly (B).
3. Remove the five bolts, then remove the headlight.
4. Remove the bolt (C) and the corner upper beam (D) from the headlight.
5. Install the headlight in the reverse order of removal.
6. After replacement, adjust the headlight to local requirements.
The illustration is shown from
back side of left headlight.
08/08/21 14:27:01 61SNR030_220_0176
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22-17422-174 Exterior Lights
Headlight Adjustment (cont’d) Headlight Replacement
U: UP
D: DOWN
A A
D B
C
A
5. If necessary, open the hood and adjust the
headlights to local requirements by turning the
adjusters (A). A transient high tension (25,000 V) occurs at the bulb sockets or the high intensity discharge (HID)
lamps when the combination light switch is turned
ON, it may cause serious electrical shock or
electrocution if you do not observe the cautions.
Do not service the headlights assembly in wet
conditions, such as rain or snow, near a sprinkler
system, or when your hands are wet to prevent
electrocution.
1. Remove the front bumper (see page 20-146).
2. Remove the connectors (A) from the headlight assembly (B).
3. Remove the five bolts, then remove the headlight.
4. Remove the bolt (C) and the corner upper beam (D) from the headlight.
5. Install the headlight in the reverse order of removal.
6. After replacement, adjust the headlight to local requirements.
The illustration is shown from
back side of left headlight.
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Headlight Front Side Marker Light
Headlight (High Beam): 60 W
Headlight (Low Beam) : 51 W
Without HID
High
Low Front Side Marker Light: 2 CP
22-177
Bulb Replacement
A
A
1. For low beam : Remove the inner fender (see page
20-171).: Without HID
2. Disconnect the 2P connector (A) from the headlight.
:
3. Turn the bulb socket 45 ° counterclockwise to remove the bulb.
4. Install a new bulb in the reverse order of removal. 1. Remove the inner fender (see page 20-171).
2. Disconnect the 2P connector (A) from the front side
marker light.
3. Turn the bulb socket 45 ° counterclockwise to remove the bulb.
4. Install a new bulb in the reverse order of removal.
(cont’d)
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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.
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DTC B1155:
DTC B1156:
DTC B1159:
DTC B1188:
YES
NO YES
NO
22-263
Gauge Control Module Lost
Communication with the MICU (Headlight
Switch Message)
Gauge Control Module Lost
Communication with the MICU (Wiper Switch
Message)
Gauge Control Module Lost
Communication with the MICU (DOORSW
Message)
Gauge Control Module Lost
Communication with the MICU (RM
Message)
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. Check for DTCs with the HDS.
Go to step 4.
Intermittent failure. The gauge control
module is OK at this time. Check for loose or poor
connections. If the connections are good, check the
battery condition (see page 22-67), and the
charging system. 4. Check for DTCs with the HDS.
Faulty MICU; replace the under-dash fuse/
relay box (see page 22-66).
Replace the gauge control module (tach)
(see page 22-277).
Ar e DT Cs B115 5 , B115 6, 115 7 , B115 9, B1160, and / or B1188 i nd i cat ed ? Ar e DT Cs B115 5 , B115 6, 115 7 , B115 9, B1160,
and / or B1188 i nd i cat ed at t he same t i me?
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Cavity WireTest condition Test: Desired resultPossible cause if desired result is not
obtained
22-285
5. Reconnect the connector 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.





















E37 GRN Driver’s door open Measure the voltage to ground:
There should be less than 0.5 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
R6 PNK Ignition key inserted into the ignition switch Measure the voltage to ground:
There should be less than 0.5 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
S1 ·
S5 ORN
·
BLK Combination light switch OFF Measure the voltage between S1
and S5 terminals:
There should be less than 0.5 V. Faulty combination light switch
An open in the wire
Combination light switch in any
other position than OFF Measure the voltage between S1
and S5 terminals:
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 S11
and S5 terminals:
There should be less than 0.5 V. Faulty combination light switch
An open in the wire
Combination light switch OFF Measure the voltage between S11 and S5 terminals:
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 S13
and S5 terminals:
There should be less than 0.5 V. Faulty combination light switch
An open in the wire
Combination light switch OFF Measure the voltage between S13 and S5 terminals:
There should be more than 5 V. Faulty combination light switch
A short to ground in the wire
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