lights ACURA CSX 2006 Service Owner's Guide

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Fuse
Number Amps
Component(s) or Circuit(s) Protected
22-63
23 45
1 16 17
19
18 20
11
12 1413 15
26 27 2928 30
21 22
2423 25
36 37
38
3132
34
33
35
10
67 8
9
21 20 A MICU ( B H/L LO)
30 A MICU ( B H/L LO)
22 Not used
23 Not used
24 20 A Moonroof control unit/motor
25 20 A MICU ( B DR LOCK)
26 20 A Driver’s power window motor (via power window master switch)
27 Not used
28 15 A Console accessory power socket (via console accessory power socket relay)
29 15 A Front accessory power socket (via front accessory power socket relay)
30 20 A Front passenger’s power window motor
31 Not used
32 20 A Moonroof control unit/motor, Moonroof switch , Right rear power window motor
33 20 A Left rear power window motor
34 Not used
35 7.5 A Audio unit , Console accessory power socket relay, Front accessory power socket relay, HandsFreeLink control unit , Ignition key switch, Navigation unit , Stereo amplifier
36 10 A Climate control unit, Driver’s seat heater switch, Fan control relay and radiator fan relay (via A/C diode), Passenger’s seat heater switch, Power mirrors (via power mirror switch), Under-hood fuse/relay box (A/C
compressor clutch relay, Blower motor relay, Power mirror defogger relay, Rear window defogger relay)
37 7.5 A MICU (daytime running lights power supply)
38 30 A MICU (IG 1 WIPER)
1: ’06-07 models
2: TYPE S model
3: Without HID
4: With HID
5: ’09 model with navigation system
6: Without navigation system
7: With navigation system3
4
1
6
5 72
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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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(#'
) MICUDTC Description DTC typePage
22-77
DTC Troubleshooting Index
NOTE: Check the ECM/PCM for DTCs and troubleshoot ECM/PCM (see page 11-3) or F-CAN loss of communication
errors first, then record all DTCs, and sort them by DTC type using the DTC troubleshooting index, then troubleshoot
the DTC(s) in this order.
 Battery voltage DTCs
 Internal error DTCs
 Loss of communication DTCs (beginning with the lowest number first; for example, if B1008 and B1011 are retrieved, troubleshoot B 1008 first).
 Signal error DTCs
B1000 Communication bus line error (BUS-OFF) Loss of communication(see page 22-102)
B1001 MICU internal error (CPU error) (’06-08 models) Internal error (see page 22-103)
B1002 MICU internal error ( EEPROM error) Internal error (see page 22-103)
B1008 MICU lost communication with gauge control m odule (A/T
message) Loss of
communication(see page 22-104)
B1011 MICU lost communication with gauge control m odule (VSP/NE
message) Loss of
communication(see page 22-104)
B1026 Front passenger’s door lock switch LOCK/UNLOCK signal error Signal error (see page 22-120)
B1032 MICU lost communication with the SRS unit (CDS message) CDS (Collision detection signal) input circuit malfunction (’06-07
models) Signal error (see page 22-105)
B1036 IG1 line input error Signal error (see page 22-105)
B1077 Windshield wiper (As) signal error Signal error (see page 22-224)
B1078 Daytime r unning lights signal error Signal error (see page 22-157)
B1127 Driver’s door key cylinder switch signal error Signal error (see page 22-121)
B1128 Driver’s door lock switch signal error Signal error (see page 22-123)
B1129 Driver’s door lock knob switch signal error Signal error (see page 22-124)
B1275 Combination light switch OFF position circuit malfunction (’07- 09 models) Signal error (see page 22-159)
B1276 Combination light switch parking (SMALL) position circuit malfunction (’07-09 models) Signal error (see page 22-159)
B1278 Headlight switch ON position circuit malfunction (’07-09 models) Signal error (see page 22-159)
B1279 Headlight switch DIMMER position circuit malfunction (’07-09 models) Signal error (see page 22-161)
B1280 Turn signal switch circuit malfunction (’07-09 models) Signal error (see page 22-186)
B1281 Windshield wiper switch MIST position circuit malfunction (’07- 09 models) Signal error (see page 22-226)
B1282 Windshield wiper switch INT position circuit malfunction (’07-09 models) Signal error (see page 22-226)
B1283 Windshield wiper switch LOW position circuit malfunction (’07- 09 models) Signal error (see page 22-226)
B1284 Windshield wiper switch HIGH position circuit malfunction (’07- 09 models) Signal error (see page 22-226)
(cont’d)
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MICU Control Functions Index
SystemFunction
22-82Multiplex Integrated Control System
System Description (cont’d)
The MICU (built into the under-dash fuse/relay box) is one of the B-CAN components. The MICU controls many
systems related to the body controller area and security system, and also works as a gateway to the diagnose the
other B-CAN connected ECUs with the HDS.
Refer to the each system circuit diagram in detail.
Multiplex Control Sends the switch input signal information to the MICU and outputs the information. The MICU controls the ECUs electric load and communication based upon the information
received the B-CAN.
On-Board Diagnosis The MICU has a gateway function which sends the results of the MICU internal diagnosis and the B-CAN connected ECUs diagnosis to the HDS.
Self-Diagnosis Test mode 1 diagnoses the communication line between the MICU and B-CAN connected unit. Test mode 2 checks the switch inputs connected to the MICU.
Interior Light(s) The MICU controls the interior lights ON, OFF and dimming based upon the information of the related switches and/or the B-CAN related information.
Sleep Function The MICU has a sleep function, which it enters during the power down mode.
The MICU also controls the function of these circuits:  Entry lights control (map lights and ceiling light)
 Exterior lights control (including the daytime running lights control)
Horn
 Interlock system
 Key-in reminder
 Keyless entry
 Lights-on reminder
 Power door locks
 Power window key-off timer
 Seat belt reminder
 Security alarm
 Turn signal/hazard flasher
 Wiper/washer
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Power Supply Voltage Monitoring Function
Entry Lights Control System
Lighting System (Headlights, Parking Lights, Fog Lights, Side Marker Lights, License Plate
Lights, and Taillights)
Daytime Running Lights
Turn Signal/Hazard Warning Lights
Door Lock Response Operation
Power Window Key-off Operation
InputOutput
Input Output
Input Output
Input Output
Input Output
Input Output
Input Output
22-85
The MICU monitors the power supply voltage (back-up voltage). If the voltage goes below 10 V, the MICU sends a MICU message and will not
store DTCs.
MICU Battery voltage MICU : MICU internal circuit
The MICU controls the ceiling light ON/OFF and dimming based upon input signals from each switch. MICU IG1 power supply Ignition key switch
Driver’s door switch
Front passenger’s door switch
Left rear door switch
Right rear door switch
Driver’s door lock knob switch (LOCK) Interior light
B-CAN Keyless LOCK signal
The MICU contains the relay circuits for the headlight high/low beams and taillights, and controls the lighting system ON/OFF based upon input
signals from the combination light switch. MICU Headlight OFF switch Headlight ON switch
Fog light switch
Dimmer switch
Combination light switch (parking lights, side marker lights,
license plate lights, and taillights)
Passing switch Headlights (low beam)
Headlights (high beam)
Parking lights
Fog lights
Side marker lights
License plate lights
Taillights
The MICU controls the exterior lights as a daytime running lights based upon input signals from each switch. MICU Headlight OFF switch Headlight ON switch
Dimmer switch
Combination light switch (parking lights, side marker lights,
license plate lights, and taillights)
Passing switch Headlights (low beam)
Headlights (high beam)
Parking lights
Slide marker lights
License plate lights
Taillights
B-CAN Transmission range switch (P position)
The MICU controls the turn signal/hazard warning lights based upon input signals from the turn signal and hazard warning switches. MICU IG1 power supply Turn signal switch (left/right)
Hazard warning switch Turn signal lights (left/right)
The MICU controls the door lock actuators based upon B-CAN signals. B-CAN Door lock signals Door lock actuator (LOCK/UNLOCK) Driver’s door lock actuator (UNLOCK)
Trunk lid release actuator
The MICU controls the power windows key-off operation based upon input signals from each switch. MICU IG1 power supply Ignition key switch
Driver’s door switch
Front passenger’s door switch Power window key-off timer
(cont’d)
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Power Door Locks (Vehicle Speed Sense)
Power Door Locks (Normally LOCK/UNLOCK Operation)
Keyless Entry System
Keyless PANIC
InputOutput
Input Output
Input Output
Input Output
22-86Multiplex Integrated Control System
System Description (cont’d)
The MICU controls the door lock actuators based upon B-CAN signals and input signals from each switch.
MICU IG1 power supply Driver’s door switch
Front passenger’s door switch
Left rear door switch
Right rear door switch
Trunk lid latch switch
Driver’s door lock knob switch (UNLOCK)
Front passenger’s door lock knob switch (UNLOCK)
Left rear door lock knob switch (UNLOCK)
Right rear door lock knob switch (UNLOCK)
Transmission range switch (P position) Door lock (LOCK)
B-CAN Vehicle speed pulse Engine RPM
The MICU controls the door lock actuators based upon input signals from each switch. MICU IG1 power supply Ignition key switch
Driver’s door switch
Front passenger’s door switch
Left rear door switch
Right rear door switch
Trunk lid latch switch
Driver’s door lock knob switch (LOCK)
Driver’s door lock switch (LOCK/UNLOCK)
Driver’s door key cylinder switch (UNLOCK)
Front passenger’s door lock switch (LOCK/UNLOCK) Door lock actuators (LOCK/UNLOCK)
The MICU controls the door lock actuators based upon B-CAN signals and input signals from each switch. MICU IG1 power supply Ignition key switch
Driver’s door switch
Front passenger’s door switch
Left rear door switch
Right rear door switch
Trunk lid latch switch
Driver’s door lock knob switch (LOCK/UNLOCK)
Driver’s door lock switch (LOCK/UNLOCK)
Driver’s door key cylinder switch (UNLOCK)
Front passenger’s door lock switch (LOCK/UNLOCK)
Transmission range switch (P position) Door lock actuator (LOCK/UNLOCK)
Driver’s door lock actuator (UNLOCK)
Trunk lid release actuator
B-CAN Keyless LOCK signal
The MICU controls the keyless PANIC based upon B-CAN signals. B-CAN Keyless PANIC signal (action, headlight low, parking light and horn) Headlights (low beam)
Parking lights
Side marker lights
License plate lights
Taillights
Horn
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Security Alarm System
Key-in Reminder
Key Interlock (A/T)
Answer Back Response Operation
Wiper/Washer
Collision Detection Signal (CDS)
InputOutput
Input Output
Input Output
Input Output
Input Output
Input Output
22-87
The MICU controls the lighting system and horn based upon B-CAN signals and input signals from the each switch.
MICU IG1 power supply Ignition key switch
Audio switch
Driver’s door switch
Front passenger’s door switch
Left rear door switch
Right rear door switch
Trunk lid latch switch
Driver’s door key cylinder switch (UNLOCK)
Driver’s door lock knob switch (UNLOCK)
Front passenger’s door lock knob switch (UNLOCK)
Left rear door lock knob switch (UNLOCK)
Right rear door lock knob switch (UNLOCK)
Hood switch Horn
Headlights
Parking lights
Side marker lights
License plate lights
Taillights
B-CAN Keyless LOCK signal Door lock signal
The MICU controls the door lock actuators based upon ignition key switch, the driver’s door switch, and driver’s door lock knob switch signals. MICU Ignition key switch Driver’s door switch
Driver’s door lock knob switch Door lock actuator (LOCK/UNLOCK)
Driver’s door lock actuator (UNLOCK)
The MICU controls the key interlock solenoid based upon IG1, transmission range switch, and park-pin switch signals. MICU Ignition switch ACC Transmission range switch (P position)
Park-pin switch Key interlock solenoid
The MICU controls the lighting system and horn based upon B-CAN signals. B-CAN Answer back signals (headlight low, horn, parking lights) Horn Headlights
Parking lights
Side marker lights
License plate lights
Taillights
The MICU controls the wiper motor and the washer motor based upon IG1 and wiper/washer switch signals. MICU IG1 power supply Wiperswitch(INTandLO)
Wiper switch (LO and HI)
Wiper switch (MIST)
Washer switch
Wiper intermittent speed Wiper motor
Washer motor
The MICU controls the door lock actuators based upon IG1 and B-CAN signals. MICU IG1 power supply Door lock (LOCK/UNLOCK)
B-CAN SRS signal (front, side and rear) Impact sensors
(cont’d)
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•••
Function Test:
System Menu Data List Indication Data List and Operation Time
22-92Multiplex Integrated Control System
System Description (cont’d)
Door Locks
LOCK all doors Outputs LOCK signal 1 time (0.6 sec) to all doors
UNLOCK driver’s side door Outputs UNLOCK signal 1 time (0.6 sec) to driver’s
door
UNLOCK all doors Outputs UNLOCK signal 1 time (0.6 sec) to all doors
Lighting Interior Light Command Illuminates for 30 seconds.
LEFT Turn Signal Command Blinks for 5 seconds.
RIGHT Turn Signal Command Blinks for 5 seconds.
Hazard flasher Blinks turn signal (left and right) for 15 seconds.
Headlight Command Operates headlight (low) for 15 seconds.
Headlight HIGH Beam Command Operates headlight (high) for 15 seconds.
Fog Light Operates fog light relay for 15 seconds.
Parking Light Command Operates small lights for 15 seconds.
Keyless Trunk Lid/Tailgate Release Command Unlock trunk
Security Horn Command Operates horn for 1 second.
Wipers Windshield Wiper Motor LOW Command Operates windshield wiper motor for 5 seconds (low
speed).
Windshield Wiper Motor HIGH Command Operates windshield wiper motor for 5 seconds (high
speed).
Windshield Washer Command Operates windshield washer motor for 5 seconds.
Gauges Self Diagnostic Test
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YES
NO
YES
NO
22-93
Troubleshooting - B-CAN System Diagnosis Test Mode A
A
Check the ECM/PCM for DTCs and troubleshoot ECM/
PCM (see page 11-3) or F-CAN loss of communication
errors first, then do this diagnosis if the symptom is
relatedtotheB-CANsystem.
NOTE: If the HDS is not available, do the Test Mode 1 and Test Mode 2 (see page 22-97).
 Always cycle the ignition switch within 3 seconds when prompted in the DTC troubleshooting
procedures.
1. Compare the symptom with this list of B-CAN related systems:
 Gauge control module
 Exterior lights
 Turn signals
 Entry light control
 Interior lights
 Door-open and trunk-open indicators
 Horns (security and panic)
 Chimes (key-in, seat belt, lights-on, and parking brake)
 Power window/moonroof timer
 Wiper/washer
Security
 Keyless entry
 Power door locks
Keyinterlock
 Dash light brightness control
Go to step 2.
Go to the system troubleshooting for the
system with the symptom. 2. Connect the HDS to the data link connector (A),
then turn the ignition switch to ON (II).
3. From the BODY ELECTRICAL menu, select UNIT INFORMATION, and then select CONNECTED UNIT
listed to see if the following control units are
communicating with the HDS.
MICU
 Gauge control module
 Immobilizer-keyless control unit
 Climate control unit
 HandsFreeLink control unit
NOTE:  If one or more of the units are not communicating with the HDS, DETECT will be
displayed.
 If the unit is not communicating or the vehicle is not equipped, ‘‘Not Available’’ will be displayed.
Go to step 4.
If any of the control units are not
communicating, go to B-CAN System Diagnosis
Test Mode B (see page 22-94). If all units are not
communicating or only the MICU is communicating,
go to DTC B1000 troubleshooting (see page 22-102).
(cont’d)
Is the symptom related to the B-CAN system? Ar e al l cont r ol uni t s communi cat i ng w i t h t he H DS?
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µ
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YES
NO
YES
NOUnit not communicating
22-9422-94Multiplex Integrated Control System
Troubleshooting - B-CAN System
Diagnosis Test Mode A (cont’d)
Troubleshooting - B-CAN System
Diagnosis Test Mode B
4. Select the system that has the problem from the
BODY ELECTRICAL menu, then select DTCs.
Go to step 5.
If the problem is related to one of the
following items, go to B-CAN System Diagnosis
Test Mode C (see page 22-95) if the system does
not stop or turn off. Go to Test Mode D (see page
22-96) if the system does not run or turn on.
 Exterior lights
 Turn signals
 Entry light control
 Interior lights
 Horn (security and panic)
 Wiper/washer
If the problem is related to one of the following
items, go to the troubleshooting for that individual
system.  Gauge control module
 Door-open and trunk-open indicators
 Chimes (key-in, seat belt, lights-on, and parking brake)
Security
 Keyless entry
Keyinterlock
 Dash light brightness control
 Audio system
 Navigation (if equipped)
 HandsFreeLink (if equipped)
5. Record all DTCs, and sort them by DTC type.
6. Troubleshoot the DTC(s) in this order:  Battery voltage DTCs.
 Internal error DTCs.
 Loss of communication DTCs. Begintroubleshooting with the lowest number first
(Example: if DTC B1008 and B1011 are retrieved,
begin by troubleshooting B 1008).
 Signal error DTCs. Do this diagnosis if any of the control units are not
communicating (Not Available is displayed in the HDS)
as found by the B-CAN System Diagnosis Test Mode A
(see page 22-93).
1. Using the HDS, select the system that has the symptom from the BODY ELECTRICAL menu.
2. Select DTCs, and then check for loss of communication DTCs.
Go to step 3.
Replace the MICU.
3. Do the input test for the unit not communicating with the HDS.
MICU (see page 22-109)
Gauge control module (see page 22- 271)
Immobilizer-keyless control unit (see page
22-330)
Climate control unit (see page 21-24)
HandsFreeLink control unit (see page 23-388)
Are any DTCs indicated?
Ar e any l oss of communi cat i on DT Cs i nd i cat ed ?
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