2006 ACURA CSX alternator

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DTC 25-14:
DTC 25-15:
DTC 25-17: DTC 25-19:
DTC 25-23:
YES
NO YES
NO
19-12719-127
Yaw Rate/Lateral Acceleration
Sensor Circuit High Voltage
Yaw Rate/Lateral Acceleration
Sensor Circuit Low Voltage
Yaw Rate/Lateral Acceleration
Sensor Power Source Voltage Malfunction Yaw Rate/Lateral Acceleration
Sensor Startup Time Malfunction
Yaw Rate Sensor Circuit
Intermittent Interruption
1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Turn the ignition switch to LOCK (0), then turn it to
ON (II) again.
4. Check for DTCs with the HDS.
If DTC 61-01, 61-21, 61-22, 61-23, and/or
62-21 is indicated at the same time, check the
battery performance (see page 22-67), and do the
alternator and regulator circuit troubleshooting first
(see page 4-28). If DTC 61-01, 61-21, 61-22, 61-23,
and/or 62-21 is not indicated at the same time,
replace the yaw rate-lateral acceleration sensor
(see page 19-169).
Intermittent failure, the system is OK at this
time. 1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Turn the ignition switch to LOCK (0), then turn it to
ON (II) again.
4. Wait 60 seconds or more.
5. Check for DTCs with the HDS.
Replace the yaw rate-lateral acceleration
sensor (see page 19-169).
Intermittent failure, the system is OK at this
time.
Is DT C 25-14, 25-15, or 25-17 indicated? I s DT C 25 -19 or 25 -23 i nd i cat ed ?
08/08/21 15:05:53 61SNR030_190_0127
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DYNOMITE -2009-

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DTC 61-01:
DTC 61-21:
DTC 61-22:
DTC 61-23:
YES
NO YES
NO
19-143
VSA Modulator-control Unit
Initial IG Low Voltage
VSA Modulator-control Unit
Power Source Low Voltage 1
VSA Modulator-control Unit
Power Source Low Voltage 2
VSA Modulator-control Unit
Power Source Low Voltage 3
1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Turn the ignition switch to LOCK (0), then start the
engine.
4. Check for DTCs with the HDS.
Go to step 5.
Intermittent failure, the system is OK at this
time. Check for loose terminals at the VSA
modulator-control unit 37P connector. Refer to
intermittent failures troubleshooting (see page
19-98).
5. Check and note BATTERY voltage in the VSA DATA LIST with the HDS.
6. Using a voltmeter, measure and note the voltage between the battery terminals.
NOTE: If the battery voltage is below 9.5 V, check
the battery (see page 22-67), and troubleshoot the
alternator regulator circuit (see page 4-28). 7. Compare the data list voltage noted in step 5 to the
battery voltage in step 6.
Intermittent failure, the system is OK at this
time. Check for loose terminals at the VSA
modulator-control unit 37P connector. Refer to
intermittent failures troubleshooting (see page
19-98). If the code resets after clearing, replace the
VSA modulator-control unit (see page 19-171).
Check for loose terminals in the VSA
modulator-control unit 37P connector. If necessary,
substitute a known-good VSA modulator-control
unit (see page 19-171), and retest.
I s DT C 61-01, 61-2 1, 61-2 2 , or 61-2 3 i nd i cat ed ? Is t he d i f f er ence bet w een t he t w o v ol t age
r ead i ngs l ess t han 3 V ?
08/08/21 15:05:57 61SNR030_190_0143
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DTC 62-21: DTC 64-11:
YES
NO
YES
NO YES
NO
19-14419-144VSA System Components
DTC Troubleshooting (cont’d)
VSA Modulator-control Unit IG
High Voltage Steering Angle Sensor Power
Circuit Short
1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Turn the ignition switch to LOCK (0), then start the
engine.
4. Check for DTCs with the HDS.
Go to step 5.
Intermittent failure, the system is OK at this
time.
5. Check and note BATTERY voltage in the VSA DATA LIST with the HDS.
6. Using a voltmeter, measure and note the voltage between the battery terminals.
NOTE: If the voltage is above 15.1 V, troubleshoot
the alternator regulator circuit (see page 4-28).
7. Compare the data list voltage noted in step 5 to the battery voltage in step 6.
Intermittent failure, the system is OK at this
time. Check for loose terminals at the VSA
modulator-control unit 37P connector. Refer to
intermittent failures troubleshooting (see page
19-98). If the code resets after clearing, replace the
VSA modulator-control unit (see page 19-171).
Replace the VSA modulator-control unit
(see page 19-171), and retest. 1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Turn the ignition switch to LOCK (0), then turn it to
ON (II) again.
4. Check for DTCs with the HDS.
Go to step 5.
Intermittent failure, the system is OK at this
time.
5. Turn the ignition switch to LOCK (0).
6. Disconnect the steering angle sensor 5P connector.
7. Disconnect the VSA modulator-control unit 37P connector (see step 2 on page 19-171).
Is DT C 62-21 indicated?
Is t he d i f f er ence bet w een t he t w o v ol t ager ead i ngs l ess t han 3 V ? Is DTC 64-11 indicated?
08/08/21 15:05:57 61SNR030_190_0144
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DYNOMITE -2009-




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DTC 112-01:
YES
NO YES
NO
YES
NO
19-163
VSA MODULATOR-CONTROL UNIT 37P CONNECTOR
FSR B (WHT)
VSA MODULATOR-CONTROL UNIT 37P CONNECTOR
IG1 (GRY)
VSA MODULATOR-CONTROL UNIT 37P CONNECTOR IG1 (GRY)
Central Processing Unit (CPU)
Internal Circuit Malfunction
1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Turn the ignition switch to LOCK (0).
4. Disconnect the VSA modulator-control unit 37P
connector (see step 2 on page 19- 171).
5. Measure the voltage between VSA modulator- control unit 37P connector terminal No. 13 and
body ground.
Go to step 6.
Check the battery performance (see page
22-67), and troubleshoot the alternator and
regulator circuit (see page 4-28). 6. Measure the voltage between VSA modulator-
control unit 37P connector terminal No. 28 and
body ground.
Go to step 7.
Repair short to power in the wire between the
No. 4 (7.5 A) fuse in the under-dash fuse/relay box
and the VSA modulator-control unit.
7. Turn the ignition switch to ON (II).
8. Measure the voltage between VSA modulator- control unit 37P connector terminal No. 28 and
body ground.
Check for loose terminals in the VSA
modulator-control unit 37P connector. If necessary,
substitute a known-good VSA modulator-control
unit (see page 19-171), and retest.
Repair open in the wire between the No. 4
(7.5 A) fuse in the under-dash fuse/relay box and
the VSA modulator-control unit.
Wire side of female terminals
Wire side of female terminals
Wire side of female terminals
Is there battery voltage? Is there 0 V ?
Is there battery voltage?
08/08/21 15:06:44 61SNR030_190_0163
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Tips and Precautions
Before Troubleshooting
Handling Connectors
22-3
General Troubleshooting Information
A A A
A
1. Check applicable fuses in the appropriate fuse/relay box.
2. Check the battery for damage, state of charge, and clean and tight connections.
 Do not quick-charge a battery unless the battery ground cable has been
disconnected, otherwise you will damage
the alternator diodes.
 Do not attempt to crank the engine with the battery ground cable loosely
connected or you will s everely damage the
wiring.
 Make sure the connectors are clean and have no loose wire terminals.
 Make sure multiple cavity connectors are packed with dielectric grease (except watertight connectors).
 All connectors have push-down release type locks (A).  Some connectors have a clip on their side used to
attach them to a mount bracket on the body or on
another component. This clip has a pull type lock.
 Some mounted connectors cannot be disconnected unless you first release the lock and remove the
connector from its mount bracket (A).
 Never try to disconnect connectors by pulling on their wires; pull on the connector halves instead.
 Always reinstall plastic covers.
 Before connecting connectors, make sure the terminals (A) are in place and not bent.
(cont’d)
08/08/21 14:22:04 61SNR030_220_0005
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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
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Special Tools Required
Removal
Installation
22-65
Under-hood Fuse/Relay Box
Removal and Installation
A
B
Relay puller 07AAC-000A1A01. Do the battery terminal disconnection procedure (see page 22-68).
2. Remove the screws (A) for the alternator and battery cable terminals from the under-hood fuse/
relay box.
3. Remove the bottom cover (B) from the under-hood fuse/relay box.
4. Disconnect the connectors from the under-hood fuse/relay box.
5. Carefully remove the relays using the relay puller. NOTE: Do not use pliers. Pliers will damage the
relays, which could cause the engine to stall or not
start. 1. Install the relays and connect the connectors to the
under-hood fuse/relay box, then install the under-
hood fuse/relay box in the r everse order of removal.
2. Install the removed parts in the reverse order of removal.
3. Do the battery terminal reconnection procedure (see page 22-68).
4. Confirm that all systems work properly.
08/08/21 14:24:03 61SNR030_220_0067
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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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