key ACURA CSX 2006 Service Owner's Manual

•••
•••´
´
•••
Under-dash Fuse/Relay Box
Fuse
Number Amps
Component(s) or Circuit(s) Protected
22-62Power Distribution
Fuse to Components Index (cont’d)
1 7.5 A Power mirror switch light
2 15 A ECM/PCM, Fuel pump (via PGM-FI main relay 2), Immobilizer-keyless control unit
3 10 A Alternator, CMP sensor A, ECM/PCM (via brake pedal position switch), ELD, EVAP canister purge valve, MAF
sensor/IAT sensor, Reverse lockout solenoid , Secondary HO2S (sensor 2)
4 7.5 A ABS modulator-control unit , EPS control unit, VSA modulator-control unit , Yaw rate-lateral acceleration sensor
5 15 A Seat heaters (via seat heater relays)
6 20 A Fog light relay, Fog lights (via fog light relay)
7 Not used
8 Not used
9 7.5 A ODS unit, Passenger’s airbag cutoff indicator, SRS unit
10 7.5 A Back-up light (M/T), Gauge control module (speedo), Gauge control module (tach), MICU, Shift lock solenoid (A/T), TPMS control unit
11 10 A SRS unit
12 10 A Right headlight (high beam)
13 10 A Left headlight (high beam)
14 7.5 A Audio unit light , Climate control unit light, Dash lights brightness controller and odometer select/reset switch light, Driver’s footwell light , Driver’s seat heater switch light, Glove box light, Hazard warning switch light,
Moonroof switch light, Navigation unit , Park pin switch light (A/T), Passenger’s airbag cutoff indicator light,
Passenger’s footwell light , Passenger’s seat heater switch light, Steering wheel switches light (via cable reel),
VSA OFF switch light
15 7.5 A Parking lights, Taillights, License plate lights, Side marker lights
16 10 A Right headlight (low beam) 15 A Right HID unit
17 10 A Left headlight (low beam) 15 A Left HID unit
18 20 A MICU ( B H/L HI)
19 15 A MICU ( B SMALL LT)
20 Not used
1: ’06-07 Touring and Premium models
2: ’07 TYPE S and ’08-09 models
3: ’08-09 models
4: TYPE S model
5: With HID
6: Without HID
7: TYPE S and ’08 Premium and ’09 models
8: Without navigation system
9: With navigation system
4
1 2
2
7
3
8 49
4
6
5
6
5
08/08/21 14:24:03 61SNR030_220_0064
ProCarManuals.com
DYNOMITE -2009-

´
´
•••
•••
´
•••
•••
•••

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
08/08/21 14:24:03 61SNR030_220_0065
ProCarManuals.com
DYNOMITE -2009-

µ
(#'
)
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
08/08/21 14:24:03 61SNR030_220_0066
ProCarManuals.com
DYNOMITE -2009-

(#'

)
Required Test Equipment
Ordering Information
Software Version
Using the ED-18 Battery Tester
22-67
Battery
Battery Test
A battery can explode if you do not follow the
proper procedure, causing serious injury to anyone
nearby. Follow all procedures carefully and keep
sparks and open flames away from the battery.
Honda Electrical System Analyzer (ED-18 Battery
tester): T/N INBED18LLH
To order an Electrical System Analyzer, go to the Honda
Tool and Equipment catalog on the iN, or call
888-424-6857.
Make sure you have the latest software in the ED-18. To
check the version on the do this:  Press the POWER button.
 Select Reports, then press ENTER.
 Select i Version, then press ENTER.
If you do not have the correct version, Tools Hotline at
800-346-6327.
NOTE: For set up, customization, and other available
features, refer to the ED-18 user’s manual. 1. Connect the leads to the positive and negative terminal of the battery.
2. Use the arrow keys to select the battery test, then press enter, then follow the prompts.
NOTE: Make sure to enter the correct cold cranking
ampere rating of the battery. If the number is not
entered correctly, the result will not be accurate. 3. Here are the five possible battery conditions:
 Good Battery: The battery has at least 60 percentof its charge and requires no action.
 Good-Recharge: The battery condition appears to be good, but charging is recommended and then
retest. See your battery charger’s instructions to
fully charge the battery, then recheck. Do not
charge the battery using the vehicle’s alternator.
 Charge and Retest: The battery condition is not known because its charge is too low. Recharge
the battery, then retest. See your battery’s
instructions to fully charge the battery, then
recheck. Do not charge the battery using the
vehicle’s alternator.
 Replace Battery: The battery condition is poor. Replace it.
 Bad Cell: There is a problem with the battery. Replace it.
08/08/21 14:24:04 61SNR030_220_0069
ProCarManuals.com
DYNOMITE -2009-

Î
(#')

22-73
Multiplex Integrated Control System
Component Location Index
GAUGE CONTROL MODULE (TACH)
IMMOBILIZER-KEYLESS CONTROL UNIT
(With built-in the receiver)
MICU
(Built into the under-dash fuse/relay box) CLIMATE CONTROL
UNIT
HANDSFREELINK
CONTROL UNIT
Input Test, page 22-271
Input Test, page 22-109 Replacement, page 21-75
Self-diagnostic Function, page 23-368
Input Test, page 23-388
08/08/21 14:24:07 61SNR030_220_0075
ProCarManuals.com
DYNOMITE -2009-

Î
How to display DTCs on the gauge control module (tach)
How to clear the DTC
22-75
No DTCs detectedAll DTCs have been displayed
DTC detected
(the letter and four digit number on the left
represents the DTC, the right two digit is the
unit code.)
While in Test Mode 1, the DTCs which have been detected and stored individually by various B-CAN (Body-controller
Area Network) units, will be shown one by one on the odometer display when the communication between the MICU
and the gauge control module is normal. To scroll through the DTCs, press the select/reset button.
The unit that has stored the code can be identified by the number shown on the multi-information display.
MICU 10
Gauge control module 50
Climate control unit 51
HandsFreeLink control unit 94
Immobilizer-keyless control unit 96
While in Test Mode 1, press and hold down the SELECT/RESET button for more than 10 seconds.
(cont’d)
08/08/21 14:24:07 61SNR030_220_0077
ProCarManuals.com
DYNOMITE -2009-

Loss of Communication DTC cross-reference chart
BUS OFF and Internal Error CodesDTC type Related Unit MICU Gauge ControlModuleClimate Control
Unit HandsFreeLink
Control Unit Immobilizer-
Keyless Control Unit
Transmitting Control Unit Message Receiving Unit/Loss of Communication DTC
MICU Gauge ControlModuleClimate Control
Unit Immobilizer-
Keyless Control Unit
22-76Multiplex Integrated Control System
General Troubleshooting Information (cont’d)
When an ECU on the CAN circuit is unable to communicate with other ECUs on the CAN circuit, one or more of the
control units will set a loss of communications DTC. Use this chart to find the control unit that is not communicating.
1. Find the Transmitting Control Unit that is in the same row as all of the loss of communication DTCs retrieved.
2. Do the input test for the transmitting control unit.
BUS OFF B1000 B1150 B1200 B1750 B1900
ECU (CPU) Error B1001
ECU (EEPROM)
Error B1002 B1152 B1202
ECU (Internal)
Error B1792
MICU RM B1188 HLSW B1155
WIPSW B1156 MICU B1157
DOORSW B1159
DRLOCKSW B1160 B1905
Gauge Control
Module VSP/NE B1011 B1205
A/T B1008 B1906
CDS (SRS) B1032 ECT B1206
ECM/PCM ENG B1168 A/T B1169
ABS or VSA
modulator-
control unit ABS or VSA B1170
TPMS Control
unit TPMS B1173
EPS Control unit EPS B1183
SRS SRS B1187
08/08/21 14:24:07 61SNR030_220_0078
ProCarManuals.com
DYNOMITE -2009-

(#'
) 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)
08/08/21 14:24:07 61SNR030_220_0079
ProCarManuals.com
DYNOMITE -2009-

Climate Control UnitDTC Description DTC typePage
HandsFreeLink Control Unit DTC Description DTC typePage
Immobilizer-Keyless Control Unit DTC Description DTC typePage
22-79
B1200 Communication bus line error (BUS-OFF) Loss of
communication (see page 22-107)
B1202 Climate control unit internal error ( EEPROM error)Internal error (see page 21-28)
B1205 Climate control unit lost communication with the gauge control module (VSP/NE message) Loss of
communication(see page 21-28)
B1206 Climate control unit lost communication with the gauge control module (ECT message) Loss of
communication(see page 21-28)
B1207 Climate control unit lost communication with the gauge control module (ILLUMI message) Loss of
communication(see page 21-28)
B1220 Recirculation control motor circuit short Signal error (see page 21-29)
B1225 In-car temperature sensor circuit open Signal error (see page 21-31)
B1226 In-car temperature sensor circuit short Signal error (see page 21-32)
B1227 Outside air temperature sensor circuit open Signal error (see page 21-33)
B1228 Outside air temperature sensor circuit short Signal error (see page 21-34)
B1229 Sunlight sensor circuit open Signal error (see page 21-35)
B1230 Sunlight sensor circuit short Signal error (see page 21-36)
B1231 Evaporator temperature sensor circuit open Signal error (see page 21-37)
B1232 Evaporator temperature sensor circuit short Signal error (see page 21-39)
B1233 Air mix control motor circuit open Signal error (see page 21-40)
B1234 Air mix control motor circuit short Signal error (see page 21-41)
B1235 Air mix control motor stuck Signal error (see page 21-42)
B1239 Mode control motor circuit open or short Signal error (see page 21-44)
B1240 Mode control motor, linkage, door malfunctionSignal error (see page 21-46)
B1241 Blower motor circuit malfunction Signal error (see page 21-47)
B2983 Recirculation control motor, linkage, door malfunctionSignal error (see page 21-51)
B2986 Recirculation control motor circuit open Signal error (see page 21-52)
B1750 Communication bus line error (BUS-OFF) Loss of
communication (see page 22-107)
B1775 Microphone input/output short to power/open Signal error (see page 23-376)
B1776 Microphone input/output short to ground/open Signal error (see page 23-377)
B1779 HFL switch (HFL talk/HFL back buttons) circuit open/short Signal error (see page 23-379)
B1780 HFL switch (HFL talk/HFL back buttons) circuit short Signal error (see page 23-381)
B1792 HandsFreeLink control unit internal error Internal error (see page 23-382)
B1900 Communication bus line error (BUS-OFF) Loss of
communication (see page 22-108)
B1905 Immobilizer-keyless control unit lost communication with the MICU (DRLOCKSW message) Loss of
communication(see page 22-317)
B1906 Immobilizer-keyless control unit lost communication with the gauge control module (A/T message) Loss of
communication(see page 22-318)
B1925 Ignition key switch signal error Signal error (see page 22-319)
08/08/21 14:24:08 61SNR030_220_0081
ProCarManuals.com
DYNOMITE -2009-

Î
(#')

µµ
µ
Body Controller Area Network (B-CAN) and Fast Controller Area Network (F-CAN)
22-80 Multiplex Integrated Control System
System Description
GAUGE CONTROL MODULE (TACH)
CAN H CAN L
MICU
ECM/PCM
(F-CAN)
(B-CAN)UNDER-DASH FUSE/RELAY BOX
DATA LINK CONNECTOR
SRS UNIT
ABS MODULATOR-CONTROL UNIT*1
VSA MODULATOR-CONTROL UNIT*2
YAW RATE-LATERAL
ACCELERATION SENSOR*2
EPS CONTROL UNIT
TPMS CONTROL UNIT*3






 F-CAN
TRANSCEIVER
B-CAN
TRANSCEIVER
IMMOBILIZER-
KEYLESS CONTROL
UNITCLIMATE
CONTROL
UNIT
HANDSFREELINK
CONTROL UNIT*4
*1: ’06 07 Touring and Premium models
*2: ’07 TYPE S and ’08 09 models
*3: ’08 09 models
*4: ’09 model with navigation system
The body controller area network (B-CAN) and the fast controller area network (F-CAN) share information between
multiple electronic control units (ECUs). B-CAN communication moves at a slower speed (33.33 kbps) for convenience
related items and for other functions. F-CAN information moves at a faster speed (500 kbps) for ‘‘real time’’ functions
such as fuel and emissions data. To allow both systems to share information, the gauge control module translates
information from B-CAN to F-CAN and from F-CAN to B-CAN.
 The single wire method is used between the units not requiring the communication to move at a fast speed.
 Using a single wire method reduces the number of the wires used on the body controller area network.
08/08/21 14:24:08 61SNR030_220_0082
ProCarManuals.com
DYNOMITE -2009-