2006 ACURA CSX key battery

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Special Tools Required
YES
NO YES
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YES
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4-6Starting System
Starter System Circuit Troubleshooting
OTC3131
Alternator, Regulator, Battery & Starter tester OTC3131
Available through the Honda Canada Inc. Technical
Tools Department; FAX
866-398-8665/e-mail:
ch_technicaltools ch.honda.com
NOTE:  Air temperature must be within 15 38 °C (59 100 °F) during this procedure.
 After this inspection, you must reset the engine control module (ECM)/powertrain control module
(PCM). Otherwise, the ECM/PCM will continue to stop
the fuel injectors from operating.
 The battery must be in good condition and fully charged.
1. Connect the alternator, regulator, battery & starter tester (OTC3131) to the battery as shown.
NOTE: The probe is not used for battery testing.
2. Do the BATTERY TEST. ThebatteryisOK.Gotostep3.
If the display indicates BAD BATTERY, replace
the battery, then retest. If the display indicates
CHARGE & RETEST, charge the battery, then retest. 3. Connect the Honda Diagnostic System (HDS) to the
data link connector (DLC) (see step 2 on page 11-3).
4. Turn the ignition switch to ON (II).
5. Make sure the HDS communicates with the vehicle and the ECM/PCM. If it does not communicate,
troubleshoot the DLC circuit (see page 11-204).
6. Select ALL INJECTORS STOP in the PGM-FI INSPECTION menu with the HDS.
7. Set the parking brake, then with the shift lever in N or P (A/T model) or the clutch pedal pressed (M/T
model), turn the ignition switch to START (III).
The starting system is OK. Go to step 14.
Go to step 8.
8. Turn the ignition switch to LOCK (0).
9. Check the electrical connections at the battery, the negative battery cable to the body, the engine
ground cables, and the starter for looseness and
corrosion. Then try cranking the engine again.
Repairing the loose connection corrected the
problem. The starting system is OK. Go to step 14.
Based on the following symptoms, take the
appropriate action:
 If the starter does not crank the engine at all, go to step 10.
 If the starter cranks the engine erratically or too slowly,gotostep12.
 If the starter does not disengage from the flywheel ring gear (M/T model) or torque
converter ring gear (A/T model) when you
release the key, replace the starter, or remove
and disassemble it, and check for the following:
– Starter solenoid and switch malfunction
– Dirty drive gear or damaged overrunning clutch
Does the display indicate GOOD or GOOD, LOWCHARGE? Does t he st ar t er cr ank t he engi ne nor mal l y ?
Does t he st ar t er cr ank t he engi ne nor mal l y ?
08/08/21 14:09:22 61SNR030_040_0007
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DYNOMITE -2009-

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Symptom Diagnostic procedure Also check for
4-24
Charging System
Symptom Troubleshooting Index
Charging system
indicator does not come
on with the ignition
switch in ON (II)
Troubleshoot the charging system indicator circuit
(see page 4-26).
Charging system
indicator stays on 1.
2.
3.
4.Troubleshoot the charging system indicator circuit
(see page 4-26).
Check for a broken drive belt (see page 4-30).
Check the drive belt auto-tensioner (see page 4-31).
Check for PGM-FI DTCs (see page 11-3).
Battery discharged 1. 2.
3.
4.
5.
6.Check for a poor connection at the battery terminal.
Check for a broken drive belt (see page 4-30).
Test the battery (see page 22-67).
Troubleshoot the alternator and regulator circuit
(see page 4-28).
Check the drive belt auto-tensioner (see page 4-31).
Check for excessive parasitic electrical current draw
with the ignition switch to LOCK (0), and the key
removed. The multiplex control unit may take up to 10
minutes to turn off (sleep mode) for same models.
Battery overcharged 1. 2.Test the battery (see page 22-67).
Troubleshoot the alternator and regulator circuit
(see page 4-28).
08/08/21 14:10:10 61SNR030_040_0025
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DYNOMITE -2009-


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Connector Terminal
YES
NO YES
NO
YES
NO
11-206
PGM-FI System
DLC Circuit Troubleshooting (cont’d)
DATA LINK CONNECTOR (DLC)
K-LINE (LT BLU)
JUMPER WIRE
DATA LINK CONNECTOR (DLC)B(WHT)
23. Connect DLC terminal No. 7 to body ground with ajumper wire.
24. Check for continuity between body ground and these connector terminals:
SRS unit A (28P) No. 24 (LT BLU)
ABS modulator-control unit
25P (with ABS) No. 10
(LT BLU)
VSA modulator-control unit
37P (with VSA system) No. 26
(LTBLU)
EPS control unit D (28P) No. 17 (LT BLU)
Immobilizer-keyless control
unit 7P No. 5 (LT BLU)
TPMS control unit 20P No. 7 (LT BLU)
Audio unit 17P No. 6 (LT BLU)
Under-dash fuse/relay box Q
(16P) No. 8 (LT BLU)
Replace the part which cannot communicate
with the HDS.
Repair open in the wire between the DLC (K-
line) and the appropriate connector. 25. Do the gauge self-diagnostic function (see page
22-241).
26. Check for B-CAN system DTCs without the HDS (see page 22-74).
Go to step 39.
Go to step 27.
27. Turn the ignition switch to LOCK (0).
28. Disconnect the HDS from the DLC.
29. Measure the voltage between DLC terminal No. 16 and body ground.
Go to step 30.
Repair open in the wire between DLC terminal
No.16andtheNo.23BACKUP(10A)fuseinthe
under-hood fuse/relay box.
Terminal side of female terminals
Terminal side of female terminals
Is t her e cont i nui t y bet w een t he bod y gr ound andeach of t he t er mi nal s i n t he char t ? I s DT C B1168, B1169, and / or B117 8 i nd i cat ed ?
Is there battery voltage?
08/08/21 14:21:55 61SNR030_110_0206
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14-279
Circuit Diagram
22
36 444342 27 28
3033 34 35
32 25
20 21 22 16 1817
13 14 15
12
11 789
31
3123
31
456
1514
2120 25
24
34
33
292827
42 44
40
37
36 31
123456 9
87
11 12 151413 17 1816
32
29
30
42 43 44
40
39
36
18
17
16 19
3598
10 2120
27
2
26 29 40
4
23 24
41 23
41
39
10
26
G601
4 3
DN
R
P ST
S RVS
FWD
BKSW LT GRN
LT GRNWHT
No. 12 (15 A)
YEL
BRN
PG SG 16
15
BLK A40
BKSW
WHT/BLK BLK LT BLU
BLK
C(44P)
B(44P)
A(44P)
Terminal side of female terminals
G503
BLK A36
A37
WHT
RED
RED
WHT
1
19 CANH
CANL
17
P
R
N
D
S
GAUGE CONTROL MODULE (TACH)
2 1 3 4 1
3827
65 41017
6
549 38 10
KEYSW KEYSOL
G504
BLU
PNK
PUR
BLK P-PIN
ATPPBLU/BLK 5 4 6 2 1
3
GRY PUR
LT BLU
A24
VCC5
APSB A18
A34
SG5
SG4
A35
A17
APSA VCC4 A25
BLUYEL
BRN
PG1
PG2
LG1
LG2
C40 B1
C44 B36
BRN/YEL
BRN/YEL
G101 PNK
BLK
B13 BLK/GRN
BRN
C36
IG1
12 V
No. 2 (15 A)
UNDER-DASH FUSE/RELAY BOX
No. 10 (7. 5 A)
BLU/WHT
RED/BLK
WHT ORN
SLS
A27
RED
BLK BAT
IG1
IGNITION SWITCH
5V
BLK
BLU/WHT
TRANSMISSION RANGE SWITCH
B22
ATPRVS
ATPFWD
ATPP
ATPR ATPN ATPD
ATPS
YEL/RED
B28
G101
B12
B21
BLU
PNK
RED/BLK
WHT
BLK/BLU
B14 B15
WHT/RED
BLU/BLK YEL/GRN
RED
BLU/YEL
1
2 YEL
PNK
UNDER-HOOD FUSE/RELAY BOX
No. 2 (IG) (50 A)
No. 1 (100 A)
BATTERY
STARTER
CUT
RELAY
SHIFT
LOCK
SOLENOID BRAKE
PEDAL
POSITION
SWITCH
ACCELERATOR
PEDAL
POSITION
SENSOR
KEY
INTERLOCK
SOLENOID IGNITION
KEY
SWITCH UNDER-DASH
FUSE/RELAY BOX
No.35(7.5A)
F-CAN
TRANSCEIVER
CPU A/T
GEAR
POSITION
INDICATOR
DRIVER
CIRCUIT
PARK PIN
SWITCH DASH-LIGHT
BRIGHTNESS
CONTROL
CIRCUIT
POWERTRAIN CONTROL
MODULE (PCM)
MULTIPLEX
INTEGRATED
CONTROL
UNIT (MICU)
SHIFT
INDICATOR
RED/WHT
GRN
G504
BLK/RED* BLK* *1: ’06 model
*2: ’07 09 models
BLK PCM Connector Terminal Locations GND
1
2
08/08/21 14:50:06 61SNR030_140_0281
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Body Electrical
Body Electrical..................................
..................................
Relay and Control Unit
Locations . 22-7
................
Connectors and Harnesses . 22-13
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Fuse/Relay Boxes . 22-58
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Power Distribution . 22-60
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Ground Distribution . 22-64
Under-hood Fuse/Relay Box
Under-dash Fuse/Relay Box
Battery
Relays
Ignition Switch
Multiplex Integrated Control System Keyless/Power Door Locks/Security
System
Horns
Exterior Lights
Turn Signal/Hazard Warning Lights
Interior Lights.............................................. .....
..............................................
.....
Special Tools . 22-2
General Troubleshooting Information . 22-3
.......................... ..........................
Removal and Installation . 22-65
..........................
..........................
Removal and Installation . 22-66
.......................................................................................... .............
................................................
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Battery Test
. 22-67
Battery Terminal Disconnection and Reconnection . 22-68
Battery Removal and Installation . 22-69
.......................................
.......................................
Power Relay Test . 22-70
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Test
. 22-72
Replacement . 22-72
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Component Location Index
. 22-73
General Troubleshooting Information . 22-74
DTC Troubleshooting Index . 22-77
System Description . 22-80
Troubleshooting-B-CAN System Diagnosis Test Mode A . 22-93
Troubleshooting-B-CAN System Diagnosis Test Mode B . 22-94
Troubleshooting-B-CAN System Diagnosis Test Mode C . 22-95
Troubleshooting-B-CAN System Diagnosis Test Mode D . 22-96
Troubleshooting-B-CAN System Diagnosis Test Mode 1 and
Test Mode 2 (Without the HDS) . 22-97
Sleep and Wake-up Mode Test . 22-99
Circuit Diagram . 22-100
DTC Troubleshooting . 22-102
MICU Input Test . 22-109 ......................
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Component Location Index
. 22-112
System Description . 22-114
Circuit Diagram . 22-116
DTC Troubleshooting . 22-120
Symptom Troubleshooting . 22-126
Tripped Sensor History . 22-130
MICU Input Test . 22-131
Door Lock Actuator Test . 22-137
Door Lock Knob Switch Test . 22-138
Door Lock Switch Test . 22-139
Door Key Cylinder Switch Test . 22-140
Trunk Lid Release Actuator Test . 22-141
Hood Switch Test . 22-141
Transmitter Test/Replacement . 22-142
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Component Location Index
. 22-145
Circuit Diagram . 22-146
Horn Test/Replacement . 22-146
Horn Switch Test . 22-147
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Component Location Index
. 22-148
Circuit Diagram . 22-150
DTC Troubleshooting . 22-157
MICU Input Test . 22-163
Combination Light Switch Test/ Replacement . 22-166
HID Bulb Replacement . 22-168
HID Unit Replacement . 22-169
HID Lamp System Troubleshooting . 22-170
Headlight Adjustment . 22-173
Headlight Replacement . 22-174
Fog Light Replacement . 22-175
Fog Light Adjustment . 22-176
Bulb Replacement . 22-177
Taillight Replacement . 22-179
Inner Taillight Replacement . 22-179
License Plate Light Replacement . 22-180
High Mount Brake Light Replacement . 22-180
Brake Pedal Position Switch Test . 22-181
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Component Location Index
. 22-182
Circuit Diagram . 22-184
DTC Troubleshooting . 22-186
MICU Input Test . 22-188
Hazard Warning Switch Test/Replacement . 22-192
Side Turn Signal Light Replacement . 22-192
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Component Location Index
. 22-193
Circuit Diagram . 22-194
Front Individual Map Light Test/ Replacement . 22-196
Ceiling Light Test/Replacement . 22-197
Trunk Light Replacement . 22-197
Ambient Light Test/Replacement . 22-198
Courtesy Light Replacement . 22-198
Glove Box Light Test/Replacement . 22-199
Vanity Mirror Light Test/Replacement . 22-199
Interior Light Switch Test/Replacement . 22-200
Trunk Lid Latch Switch Test . 22-200
Footwell Light Test/Replacement . 22-201
08/08/21 14:22:03 61SNR030_220_0002
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DYNOMITE -2009-

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 Under-hood Fuse/Relay Box
Fuse
Number Amps Component(s) or Circuit(s) Protected
22-60Power Distribution
Fuse to Components Index
1 100 A
(BAT)Battery, Power distribution
70 A
(EPS) EPS control unit
250A (IG)Ignition switch
80 A
60 A
(OPTION) No. 5, No. 6, No. 7, No. 27, No. 28, No. 29, and No. 31 fuses (in the under-dash fuse/relay box)
330A (ABS MTR) ABS modulator-control unit , VSA modulator-control unit
30 A
40 A
(ABS FSR) ABS modulator-control unit , VSA modulator-control unit
450A (H/L)No. 18, No. 19, No. 20, and No. 21 fuses (in the under-dash fuse/relay box)
40 A
(P/W) No. 24, No. 25, No. 26, No. 30, No. 32, and No. 33 fuses (in the under-dash fuse/relay box), Power window relay
(in the under-dash fuse/relay box)
5 Not used
6 20 A A/C condenser fan motor (via A/C condenser fan relay)
7 20 A Radiator fan motor (via radiator fan relay)
8 30 A Noise condenser (via rear window defogger relay), Rear window defogger (via rear window defogger relay)
9 40 A Blower motor (via blower motor relay)
10 10 A MICU (turn signal/hazard warning lights circuit)
11 15 A A/F sensor (Sensor 1) (via PGM-FI subrelay), EVAP canister vent shut valve (via PGM-FI subrelay), PGM-FI subrelay, No. 15 fuse (in the under-hood fuse/relay box) (via PGM-FI subrelay)
12 15 A Brake lights, ECM/PCM, Horn, MICU
13 Not used
14 Not used
15 7.5 A A/C condenser fan relay
16 Not used
17 15 A Stereo amplifier
18 15 A Ignition coil relay, Ignition coils (via Ignition coil relay)
19 15 A CKP sensor (via PGM-FI main relay 1), CMP sensor B (via PGM-FI main relay 1), ECM/PCM, ETCS control relay, Injectors (via PGM-FI main relay 1), PGM-FI main relay 1 (FI MAIN), PGM-FI main relay 2 (FUEL PUMP)
20 7.5 A A/C compressor clutch (via A/C compressor clutch relay)
21 15 A ECM/PCM (via ETCS control relay)
22 7.5 A Ceiling light, Courtesy lights, Front individual map lights, Ignition key light, Trunk light, Vanity mirror lights
23 10 A Audio unit , Data link connector (DLC), Gauge control module (speedo), Gauge control module (tach), HandsFreeLink control unit , Immobilizer-keyless control unit, MICU, Moonroof switch, Navigation unit
1: ’06-07 models
2: ’08-09 models
3: ’06-07 Touring and Premium models
4: ’07 TYPE S and ’08-09 models
5: ’08-09 models
6: TYPE S model
7: Without navigation system
8: With navigation system
9: ’09 model with navigation system
1
2
34
3
4 34
6 5
7 9 8
08/08/21 14:24:02 61SNR030_220_0062
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DYNOMITE -2009-

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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
08/08/21 14:24:03 61SNR030_220_0066
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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
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