2006 ACURA CSX Service Repair Manual

fuel tank removal headrest catalytic converter emergency towing air filter warning

Page 625 of 2893

ACURA CSX 2006 Service Repair Manual (#
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DTC P0507:
YES
NO
YES
NO YES
NO
YES
NO
11-300Idle Control System
DTC Troubleshooting (cont’d)
Idle Control System R

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DTC P0507:
YES
NO
YES
NO YES
NO
YES
NO
11-300Idle Control System
DTC Troubleshooting (cont’d)
Idle Control System RPM Higher
Than Expected
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. Hold the engine speed at 3,000 rpm without load (A/T in P or N, M/T in
neutral) until the radiator fan comes on, then let it
idle for at least 20 seconds.
4. Monitor the OBD STATUS for DTC P0507 in the DTCs MENU with the HDS.
Go to step 5.
If the screen indicates PASSED, intermittent
failure, the system is OK at this time. If the screen
indicates EXECUTING, keep idling until a result
comes on. If the screen indicates OUT OF
CONDITION, recheck with different load conditions
(electrical, A/C, gear position, etc.), then go to
step 3.
5. Check for vacuum leaks at these parts: PCV valve
PCV hose
EVAP canister purge valve
Throttle body
Intake manifold
Brake booster hose
Brake booster
Repair or replace the leaking part(s), then go
to step 6.
Go to step 6. 6. Turn the ignition switch to ON (II).
7. Reset the ECM/PCM with the HDS.
8. Do the ECM/PCM idle learn procedure (see page
11-310).
9. Start the engine. Hold the engine speed at 3,000 rpm without load (A/T in P or N, M/T in
neutral) until the radiator fan comes on, then let it
idle for at least 20 seconds.
10. Check for Temporary DTCs or DTCs with the HDS.
Go to step 12.
Go to step 11.
11. Monitor the OBD STATUS for DTC P0507 in the DTCs MENU with the HDS.
Troubleshooting is complete. If any other
Temporary DTCs or DTCs were indicated in step 10,
go to the indicated DTC’s troubleshooting.
If the screen indicates FAILED, check for poor
connections or loose terminals at the throttle body
and the ECM/PCM, then go to step 1. If the screen
indicates EXECUTING, keep idling until a result
comes on. If the screen indicates OUT OF
CONDITION, recheck with different load conditions
(turn on the headlights, blower motor, or A/C;
change the gear position, etc.), then go to step 9.
Does t he scr een i nd i cat e F AILE D?
Ar e t her e any l eak s? Is DT C P0507 ind icated ?
Does t he scr een i nd i cat e PASSE D?
08/08/21 14:28:31 61SNR030_110_0300
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Page 626 of 2893

ACURA CSX 2006 Service Repair Manual (#
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YES
NO
YES
NO
YES
NO
YES
NO
DTC P0532:
11-30111-301
12. Update the ECM/PCM if it does not have the latest
software (s

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NO
YES
NO
YES
NO
YES
NO
DTC P0532:
11-30111-301
12. 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).
13. Start the engine. Hold the engine speed at 3,000 rpm without load (A/T in P or N, M/T in
neutral) until the radiator fan comes on, then let it
idle.
14. Check for Temporary DTCs or DTCs with the HDS.
Check for poor connections or loose
terminals at the throttle body and the ECM/PCM. If
the ECM/PCM was updated, substitute a known-
good ECM/PCM (see page 11-7), then go to step 13.
If the ECM/PCM was substituted, go to step 1.
Go to step 15.
15. Monitor the OBD STATUS for DTC P0507 in the DTCs MENU with the HDS.
If the ECM/PCM was updated,
troubleshooting is complete. If the ECM/PCM was
substituted, replace the original ECM/PCM
(see page 11-228). If any other Temporary DTCs or
DTCs were indicated in step 14, go to the indicated
DTC’s troubleshooting.
If the screen indicates FAILED, check for poor
connections or loose terminals at the throttle body
and the ECM/PCM. If the ECM/PCM was updated,
substitute a known-good ECM/PCM (see page 11-7),
then go to step 13. If the ECM/PCM was substituted,
go to step 1. If the screen indicates EXECUTING,
keep idling until a result comes on. If the screen
indicates OUT OF CONDITION, go to step 13. NOTE: Before you troubleshoot, record all freeze data
and any on-board snapshot, and review the general
troubleshooting information (see page 11-3).
1. Start the engine, and let it idle.
2. Turn the blower switch on.
3. Turn the A/C switch on.
4. Check the A/C PRESSURE SENSOR in the DATA LIST with the HDS.
Go to step 5.
Intermittent failure, the system is OK at this
time. Check for poor connections or loose terminals
at the A/C pressure sensor and the ECM/PCM.
5. Turn the ignition switch to LOCK (0).
6. Disconnect the A/C pressure sensor 3P connector.
7. Turn the ignition switch to ON (II).
8. Check the A/C PRESSURE SENSOR in the DATA LIST with the HDS.
Go to step 10.
Go to step 9.
(cont’d)A/C Pressure Sensor Circuit Low
Voltage
Is DT C P0507 ind icated ?
Does t he scr een i nd i cat e PASSE D? Is t her e about 0.3 V or l ess?
Is t her e about 0.3 V or l ess?
08/08/21 14:29:35 61SNR030_110_0301
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Page 627 of 2893

ACURA CSX 2006 Service Repair Manual

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YES
NO
YES
NO YES
NO
11-302Idle Control System
DTC Troubleshooting (cont’d)
A/C PRESSURE SENSOR 3P CONNECTOR
SG6 (BLK)
VCC6 (RED)
ACPD (LT GRN)
A/C PRESSURE SEN

Page 628 of 2893

ACURA CSX 2006 Service Repair Manual
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YES
NO
YES
NO YES
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DTC P0533:
11-30311-303
A/C PRESSURE SENSOR 3P CONNECTOR
SG6 (BLK)
ACPD (LT GRN)
JUMPER WIRE
22. Re

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DTC P0533:
11-30311-303
A/C PRESSURE SENSOR 3P CONNECTOR
SG6 (BLK)
ACPD (LT GRN)
JUMPER WIRE
22. Reset the ECM/PCM with the HDS.
23. Do the ECM/PCM idle learn procedure (see page11-310).
24. Start the engine, and let it idle.
25. Turn the blower switch on.
26. Turn the A/C switch on.
27. Check for Temporary DTCs or DTCs with the HDS.
Check for poor connections or loose
terminals at the A/C pressure sensor and the ECM/
PCM, then go to step 1.
Troubleshooting is complete. If any other
Temporary DTCs or DTCs are indicated, go to the
indicated DTC’s troubleshooting.
28. Reconnect all connectors.
29. 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).
30. Start the engine, and let it idle.
31. Turn the blower switch on.
32. Turn the A/C switch on.
33. Check for Temporary DTCs or DTCs with the HDS.
Check for poor connections or loose
terminals at A/C pressure sensor and the ECM/PCM.
If the ECM/PCM was updated, substitute a known-
good ECM/PCM (see page 11-7), then go to step 30.
If the ECM/PCM was substituted, go to step 1.
If the ECM/PCM was updated, troubleshooting
is complete. If the ECM/PCM was substituted,
replace the original ECM/PCM (see page 11-228). If
any other Temporary DTCs or DTCs are indicated,
go to the indicated DTC’s troubleshooting. NOTE: Before you troubleshoot, record all freeze data
and any on-board snapshot, and review the general
troubleshooting information (see page 11-3).
1. Start the engine, and let it idle.
2. Turn the blower switch on.
3. Turn the A/C switch on.
4. Check the A/C PRESSURE SENSOR in the DATA LIST with the HDS.
Go to step 5.
Intermittent failure, the system is OK at this
time. Check for poor connections or loose terminals
at the A/C pressure sensor and the ECM/PCM.
5. Turn the ignition switch to LOCK (0).
6. Disconnect the A/C pressure sensor 3P connector.
7. Connect A/C pressure sensor 3P connector terminals No. 2 and No. 3 with a jumper wire.
(cont’d)A/C Pressure Sensor Circuit High
Voltage
Wire side of female terminals
Is DT C P0532 ind icated ?
Is DT C P0532 ind icated ? Is t her e about 4.7 5 V or mor e?
08/08/21 14:29:36 61SNR030_110_0303
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Page 629 of 2893

ACURA CSX 2006 Service Repair Manual
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YES
NO
YES
NO
YES
NO
11-304Idle Control System
DTC Troubleshooting (cont’d)
A/C PRESSURE SENSOR 3P CONNECTOR
SG6 (BLK)
VCC6 (RED) ACPD (LT GRN)
ECM/PCM
CONNECTOR A (

Page 630 of 2893

ACURA CSX 2006 Service Repair Manual µ
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YES
NO YES
NO
11-305
SG6 (BLK)
ECM/PCM CONNECTOR A (44P) A/C PRESSURE SENSOR 3P CONNECTOR
SG6 (BLK)
18. Turn the ignition switch to LOCK (0).
19. Jump the SCS line with the HDS.
20

Page 631 of 2893

ACURA CSX 2006 Service Repair Manual (#

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NO YES
NO
YES
NO
YES
NO
11-30611-306Idle Control System
DTC Troubleshooting (cont’d) A/C Signal Circuit Troubles

Page 632 of 2893

ACURA CSX 2006 Service Repair Manual

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NO
YES
NO
YES
NO
11-30711-307
Alternator FR Signal Circuit
Troubleshooting
ECM/PCM CONNECTOR A (44P)
ACC (RED)J

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