2006 ACURA CSX alternator


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YES
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NO
DTC P0340:
11-27811-278VTEC/VTC
DTC Troubleshooting (cont’d)
CMP SENSOR A 3P CONNECTOR
IG1 (BLK/YEL)
21. Monitor the OBD STATUS for DTC P0011 in theDTCs MENU with the HDS.
Troubleshooting is complete. If any other
Temporary DTCs or DTCs were indicated in step 20,
go to the indicated DTC’s troubleshooting.
If the screen indicates FAILED, check for poor
connections or loose terminals at the VTC oil
control solenoid valve and the ECM/PCM, then go
to step 1. If the screen indicates NOT COMPLETED,
go to step 19 and recheck. NOTE: Before you troubleshoot, record all freeze data
and any on-board snapshot, and review the general
troubleshooting information (see page 11-3).
1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Start the engine.
4. Check for Temporary DTCs or DTCs with the HDS.
Go to step 5.
Intermittent failure, the system is OK at this
time. Check for poor connections or loose terminals
at CMP sensor A and the ECM/PCM.
5. Turn the ignition switch to LOCK (0).
6. Disconnect CMP sensor A 3P connector.
7. Turn the ignition switch to ON (II).
8. Measure the voltage between CMP sensor A 3P connector terminal No. 3 and body ground.
Go to step 9.
Repair open in the wire between CMP sensor
A and the No. 3 ALTERNATOR (10 A) fuse then go
to step 18.CMP Sensor A No Signal
Wire side of female terminals
Does t he scr een i nd i cat e PASSE D?
I s DT C P0340 i nd i cat ed ?
Is there battery voltage?
08/08/21 14:28:22 61SNR030_110_0278
ProCarManuals.com
DYNOMITE -2009-

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11-297
Idle Control System
Component Location Index
ALTERNATOR
A/C PRESSURE SENSOR
A/C COMPRESSOR
CLUTCH RELAY
A/C COMPRESSOR ENGINE CONTROL MODULE (ECM)/
POWERTRAIN CONTROL MODULE (PCM)
BRAKE PEDAL POSITION SWITCH
Signal Circuit Troubleshooting,
page 11-307 Signal Circuit
Troubleshooting,
page 11-306
Update, page 11-227
Substitution, page 11-7
Replacement, page 11-228
* : This illustration shows K20Z2 engine
Signal Circuit Troubleshooting,page 11-308
08/08/21 14:28:31 61SNR030_110_0297
ProCarManuals.com
DYNOMITE -2009-



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YES
NO
11-30711-307
Alternator FR Signal Circuit
Troubleshooting
ECM/PCM CONNECTOR A (44P)
ACC (RED)JUMPER WIRE
ECM/PCM CONNECTOR B (44P)ALTF
(WHT/RED)
13. Momentarily connect ECM/PCM connector terminalA14 to body ground with a jumper wire s everal
times.
Update the ECM/PCM if it does not have the
latest software (see page 11-227), or substitute a
known-good ECM/PCM (see page 11-7), then
recheck. If the symptom/indication goes away with
a known-good ECM/PCM, replace the original ECM/
PCM (see page 11-228).
Check for poor connections or loose terminals
attheA/CclutchrelayandtheECM/PCM.Ifthe
connections and the terminals are OK, check the
A/C compressor clutch relay (see page 22-70),
repair open in the wires between the ECM/PCM
(A14), the A/C compressor clutch relay, and other
A/C systems parts. 1. Start the engine, and let it idle.
2. Monitor the ALTERNATOR in the DATA LIST with
the HDS.
3. Check if the indicated percentage varies when the headlight switch is turned on.
The alternator signal circuit is OK.
Go to step 4.
4. Turn the headlight switch and ignition switch to LOCK (0).
5. Jump the SCS line with the HDS.
6. Disconnect the alternator 4P connector.
7. Disconnect ECM/PCM connector B (44P).
8. Check for continuity between body ground and ECM/PCM connector terminal B43.
Repair short in the wire between the ECM/
PCM (B43) and the alternator.
Update the ECM/PCM if it does not have the
latest software (see page 11-227), or substitute a
known-good ECM/PCM (see page 11-7), then
recheck. If the symptom/indication goes away with
a known-good ECM/PCM, replace the original ECM/
PCM (see page 11-228).
Terminal side of female terminals
Terminal side of female terminals
I s t her e a cl i ck i ng noi se f r om t he A/ C compr essorclutch? Does t he per cent age v ar y ?
Is there continuity?
08/08/21 14:29:37 61SNR030_110_0307
ProCarManuals.com
DYNOMITE -2009-



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YES
NO
YES
NO
11-30711-307
Alternator FR Signal Circuit
Troubleshooting
ECM/PCM CONNECTOR A (44P)
ACC (RED)JUMPER WIRE
ECM/PCM CONNECTOR B (44P)ALTF
(WHT/RED)
13. Momentarily connect ECM/PCM connector terminalA14 to body ground with a jumper wire s everal
times.
Update the ECM/PCM if it does not have the
latest software (see page 11-227), or substitute a
known-good ECM/PCM (see page 11-7), then
recheck. If the symptom/indication goes away with
a known-good ECM/PCM, replace the original ECM/
PCM (see page 11-228).
Check for poor connections or loose terminals
attheA/CclutchrelayandtheECM/PCM.Ifthe
connections and the terminals are OK, check the
A/C compressor clutch relay (see page 22-70),
repair open in the wires between the ECM/PCM
(A14), the A/C compressor clutch relay, and other
A/C systems parts. 1. Start the engine, and let it idle.
2. Monitor the ALTERNATOR in the DATA LIST with
the HDS.
3. Check if the indicated percentage varies when the headlight switch is turned on.
The alternator signal circuit is OK.
Go to step 4.
4. Turn the headlight switch and ignition switch to LOCK (0).
5. Jump the SCS line with the HDS.
6. Disconnect the alternator 4P connector.
7. Disconnect ECM/PCM connector B (44P).
8. Check for continuity between body ground and ECM/PCM connector terminal B43.
Repair short in the wire between the ECM/
PCM (B43) and the alternator.
Update the ECM/PCM if it does not have the
latest software (see page 11-227), or substitute a
known-good ECM/PCM (see page 11-7), then
recheck. If the symptom/indication goes away with
a known-good ECM/PCM, replace the original ECM/
PCM (see page 11-228).
Terminal side of female terminals
Terminal side of female terminals
I s t her e a cl i ck i ng noi se f r om t he A/ C compr essorclutch? Does t he per cent age v ar y ?
Is there continuity?
08/08/21 14:29:37 61SNR030_110_0307
ProCarManuals.com
DYNOMITE -2009-


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11-376EVAP System
DTC Troubleshooting (cont’d)
PCS (YEL/BLU)
EVAP CANISTER PURGE VALVE
2P CONNECTOR
IG1 (BLK/YEL)
EVAP CANISTER PURGE VALVE
2P CONNECTOR
11. Jump the SCS line with the HDS.
12. Disconnect ECM/PCM connector B (44P).
13. Check for continuity between EVAP canister purge
valve 2P connector terminal No. 2 and body ground.
Repair short in the wire between the EVAP
canister purge valve and the ECM/PCM (B3), then
go to step 24.
Go to step 30.
14. Turn the ignition switch to LOCK (0).
15. Disconnect the EVAP canister purge valve 2P connector.
16. Turn the ignition switch to ON (II). 17. Measure the voltage between EVAP canister purge
valve 2P connector terminal No. 1 and body ground.
Go to step 18.
Repair open in the wire between the EVAP
canister purge valve and the No. 3 ALTERNATOR
(10 A) fuse in the under-dash fuse/relay box, then
go to step 24.
18. Turn the ignition switch to LOCK (0).
19. Jump the SCS line with the HDS.
20. Disconnect ECM/PCM connector B (44P).
Wire side of female terminals Wire side of female terminals
Is there continuity?
Is there battery voltage?
08/08/21 14:32:33 61SNR030_110_0376
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DYNOMITE -2009-

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DTC 11-01:
DTC 11-02:
YES
NO YES
NO
17-33
DTC Troubleshooting
EPS CONTROL UNIT CONNECTOR D (28P)
IG1 (YEL)* (GRY)*
*1: ’06 model
*2: ’07-09 models
12
Low/High IG1-terminal Voltage
(Initial Diagnosis)
Low/High IG1-terminal Voltage
(Regular Diagnosis)
1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Turn the ignition switch to LOCK (0).
4. Start the engine.
5. Wait at least 60 seconds.
Go to step 6.
Check for loose terminals or poor connections.
If the connections are good, the system is OK at
this time.
6. Turn the ignition switch to LOCK (0).
7. Disconnect EPS control unit connector D (28P). 8. Turn the ignition switch to ON (II).
9. Wait at least 60 seconds.
10. Measure the voltage between EPS control unit connector D (28P) terminal No. 16 and body ground.
Check for loose terminals in the EPS control
unit connectors, and repair if necessary. If no poor
connections are found, replace the EPS control unit
(see page 17-84).
If there is no voltage, or the voltage is lower
than specified, repair an open or high resistance in
thewirebetweentheNo.4(7.5A)fuseinthe
under-dash fuse/relay box and the EPS control unit.
If the wire checks OK, check the battery (see page
22-67), and troubleshoot the alternator regulator
circuit (see page 4-28).
Wire side of female terminalsDoes t he E PS i nd i cat or come on?
Is there battery voltage?
08/08/21 14:54:03 61SNR030_170_0034
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DYNOMITE -2009-


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DTC 61-01:
DTC 61-21:
DTC 61-22:
DTC 61-23:
19-8119-81
ABS MODULATOR-CONTROL UNIT 25P CONNECTOR
FSR B (WHT)
14. Disconnect the ABS modulator-control unit 25Pconnector (see step 2 on page 19-90).
15. Measure the voltage between ABS modulator- control unit 25P connector terminal No. 8 and body
ground.
Check for loose terminals in the ABS
modulator-control unit 25P connector. If necessary,
substitute a known-good ABS modulator-control
unit (see page 19-90), and retest.
Repair open in the wire between the No. 3
(30 A) fuse in the under-hood fuse/relay box and
the ABS modulator-control unit. 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 ABS
modulator-control unit 25P connector. Refer to
intermittent failures troubleshooting (see page
19-50).
5. Check and note BATTERY voltage in the ABS 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).
(cont’d)ABS Modulator-control Unit Initial
IG Low Voltage
ABS Modulator-control Unit
Power Source Low Voltage 1
ABS Modulator-control Unit
Power Source Low Voltage 2
ABS Modulator-control Unit
Power Source Low Voltage 3
Wire side of female terminals
I s t her e bat t er y v ol t age? I s DT C 61-01, 61-21, 61-22, or 61-23 i nd i cat ed ?
08/08/21 15:03:16 61SNR030_190_0081
ProCarManuals.com
DYNOMITE -2009-

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DTC 62-21:
19-8219-82ABS Components
DTC Troubleshooting (cont’d)
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 ABS
modulator-control unit 25P connector. Refer to
intermittent failures troubleshooting (see page
19-50). If the code resets after clearing, replace the
ABS modulator-control unit (see page 19-90).
Check for loose terminals in the ABS
modulator-control unit 25P connector. If necessary,
substitute a known-good ABS modulator-control
unit (see page 19-90), 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 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 ABS 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 ABS
modulator-control unit 25P connector. Refer to
intermittent failures troubleshooting (see page
19-50). If the code resets after clearing, replace the
ABS modulator-control unit (see page 19-90).
Replace the ABS modulator-control unit
(see page 19-90), and retest.ABS Modulator-control Unit IG
High Voltage
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 ?
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 ?
08/08/21 15:03:16 61SNR030_190_0082
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DYNOMITE -2009-