sensor ACURA CSX 2006 Service Repair Manual


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YES
NO
YES
NO
YES
NO
DTC P2118:
11-25111-251
ECM/PCM CONNECTOR C (44P)
ETCSM (BLU/RED)
ETCSM (GRN/YEL)
25. Test-drive the vehicle for several minutes in the
range of these recorded freeze data parameters:
 ENGINE S PEED
 VSS
 APP SENSOR
26. Check for Temporary DTCs or DTCs with the HDS.
Check for poor connections or loose
terminals at the throttle body and the ECM/PCM,
then clean the throttle body (see page 11- 344), and
go to step 1.
Troubleshooting is complete. If any other
Temporary DTCs or DTCs are indicated, go to the
indicated DTC’s troubleshooting.
27. Reconnect all connectors.
28. 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).
29. Test-drive the vehicle for several minutes in the range of these recorded freeze data parameters:
 ENGINE S PEED
 VSS
 APP SENSOR
30. 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 29.
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. Jump the SCS line with the HDS.
2. Disconnect ECM/PCM connector C (44P).
3. Measure the resistance between ECM/PCM connector terminals C3 and C4.
Go to step 4.
Go to step 15.
(cont’d)Throttle Actuator Current Range/
Performance Problem
Terminal side of female terminals
Is DTC P2101 indicated?
Is DTC P2101 indicated? Is t her e about 1.0 or l ess?
08/08/21 14:26:44 61SNR030_110_0251
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DYNOMITE -2009-




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DTC P2122:
YES
NO
YES
NO YES
NO
11-253
APP SENSOR 6P CONNECTOR
SG4 (BLU) VCC4 (BRN) APP SENSOR 6P CONNECTOR
APSA (YEL)
APP SENSOR 6P CONNECTOR APSA (YEL)
JUMPER WIRE
APP Sensor A (TP Sensor D)
Circuit Low Voltage
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. Check APP SENSOR A in the DATA LIST with the HDS.
Go to step 3.
Intermittent failure, the system is OK at this
time. Check for poor connections or loose terminals
at the APP sensor and the ECM/PCM.
3. Turn the ignition switch to LOCK (0).
4. Disconnect the APP sensor 6P connector.
5. Turn the ignition switch to ON (II).
6. Measure the voltage between APP sensor 6P connector terminals No. 2 and No. 3.
Go to step 7.
Go to step 17. 7. Turn the ignition switch to LOCK (0).
8. Jump the SCS line with the HDS.
9. Disconnect ECM/PCM connector A (44P).
10. Check for continuity between APP sensor 6P connector terminal No. 1 and body ground.
Repair short in the wire between the ECM/
PCM (A17) and the APP sensor, then go to step 24.
Go to step 11.
11. Connect APP sensor 6P connector terminal No. 1 to body ground with a jumper wire.
(cont’d)
Wire side of female terminals Wire side of female terminals
Wire side of female terminals
Is t her e about 0.2 V or l ess?
Is t her e about 5 V ? Is there continuity?
08/08/21 14:26:45 61SNR030_110_0253
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NO YES
NO
11-254Electronic Throttle Control System
DTC Troubleshooting (cont’d)
ECM/PCM CONNECTOR A (44P)
APSA (YEL)
APP SENSOR 6P CONNECTOR VCC4 (BRN)
JUMPER WIRE
APSA (YEL) APP SENSOR 6P CONNECTOR
VCC4 (BRN)
JUMPER WIRE
12. Check for continuity between ECM/PCM connector terminal A17 and body ground.
Go to step 13.
Repair open in the wire between the ECM/
PCM (A17) and the APP sensor, then go to step 24.
13. Reconnect ECM/PCM connector A (44P).
14. Connect APP sensor 6P connector terminals No. 1 andNo.3withajumperwire. 15. Turn the ignition switch to ON (II).
16. Check APP SENSOR A in the DATA LIST with the
HDS.
Go to step 29.
Go to step 22.
17. Turn the ignition switch to LOCK (0).
18. Jump the SCS line with the HDS.
19. Disconnect ECM/PCM connector A (44P).
20. Connect APP sensor 6P connector terminal No. 3 to body ground with a jumper wire.
Terminal side of female terminals
Wire side of female terminals Wire side of female terminals
Is there continuity?Is t her e about 0.2 V or l ess?
08/08/21 14:26:46 61SNR030_110_0254
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DYNOMITE -2009-

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YES
NO
YES
NO YES
NO
11-255
ECM/PCM CONNECTOR A (44P)
VCC4
(BRN)
21. Check for continuity between ECM/PCM connectorterminal A25 and body ground.
Go to step 30.
Repair open in the wire between the ECM/
PCM (A25) and the APP sensor, then go to step 24.
22. Turn the ignition switch to LOCK (0).
23. Replace the accelerator pedal module; K20Z2 engine (see page 11-269), K20Z3 engine (see page
11-270).
24. Reconnect all connectors.
25. Turn the ignition switch to ON (II).
26. Reset the ECM/PCM with the HDS.
27. Do the ECM/PCM idle learn procedure (see page 11-310).
28. Check for Temporary DTCs or DTCs with the HDS.
Check for poor connections or loose
terminals at the APP 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. 29. Turn the ignition switch to LOCK (0).
30. Reconnect all connectors.
31. 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).
32. Check for Temporary DTCs or DTCs with the HDS.
Check for poor connections or loose
terminals at the APP sensor and the ECM/PCM. If
the ECM/PCM was updated, substitute a known-
good ECM/PCM (see page 11-7), then recheck. 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.
Terminal side of female terminals
Is there continuity?
Is DT C P2122 indicated? Is DT C P2122 indicated?
08/08/21 14:26:46 61SNR030_110_0255
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DTC P2123:
YES
NO
YES
NO YES
NO
11-256Electronic Throttle Control System
DTC Troubleshooting (cont’d)
APP SENSOR 6P CONNECTOR
SG4 (BLU) VCC4 (BRN) APP SENSOR 6P CONNECTOR
SG4 (BLU)
JUMPER WIRE
ECM/PCM CONNECTOR A (44P) SG4 (BLU)
APP Sensor A (TP Sensor D)
Circuit High Voltage
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. Check APP SENSOR A in the DATA LIST with the HDS.
Go to step 3.
Intermittent failure, the system is OK at this
time. Check for poor connections or loose terminals
at the APP sensor and the ECM/PCM.
3. Turn the ignition switch to LOCK (0).
4. Disconnect the APP sensor 6P connector.
5. Turn the ignition switch to ON (II).
6. Measure the voltage between APP sensor 6P connector terminals No. 2 and No. 3.
Go to step 12.
Go to step 7. 7. Turn the ignition switch to LOCK (0).
8. Jump the SCS line with the HDS.
9. Disconnect ECM/PCM connector A (44P).
10. Connect APP sensor 6P connector terminal No. 2 to body ground with a jumper wire.
11. Check for continuity between ECM/PCM connector terminal A35 and body ground.
Go to step 19.
Repair open in the wire between the ECM/
PCM (A35) and the APP sensor, then go to step 14.
Wire side of female terminals Wire side of female terminals
Terminal side of female terminals
Is t her e about 4.9 V or mor e?
Is t her e about 5 V ? Is there continuity?
08/08/21 14:26:46 61SNR030_110_0256
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DYNOMITE -2009-


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YES
NO YES
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YES
NO
DTC P2127:
11-25711-257
APP SENSOR 6P CONNECTOR
SG5 (LT BLU) VCC5 (GRY)
12. Turn the ignition switch to LOCK (0).
13. Replace the accelerator pedal module; K20Z2engine (see page 11-269), K20Z3 engine (see page
11-270).
14. Reconnect all connectors.
15. Turn the ignition switch to ON (II).
16. Reset the ECM/PCM with the HDS.
17. Do the ECM/PCM idle learn procedure (see page 11-310).
18. Check for Temporary DTCs or DTCs with the HDS.
Check for poor connections or loose
terminals at the APP 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.
19. Reconnect all connectors.
20. 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).
21. Check for Temporary DTCs or DTCs with the HDS.
Check for poor connections or loose
terminals at the APP sensor and the ECM/PCM. If
the ECM/PCM was updated, substitute a known-
good ECM/PCM (see page 11-7), then recheck. 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. Turn the ignition switch to ON (II).
2. Check APP SENSOR B in the DATA LIST with the HDS.
Go to step 3.
Intermittent failure, the system is OK at this
time. Check for poor connections or loose terminals
at the APP sensor and the ECM/PCM.
3. Turn the ignition switch to LOCK (0).
4. Disconnect the APP sensor 6P connector.
5. Turn the ignition switch to ON (II).
6. Measure the voltage between APP sensor 6P connector terminals No. 5 and No. 6.
Go to step 7.
Go to step 17.
(cont’d)APP Sensor B (TP Sensor E)
Circuit Low Voltage
Wire side of female terminals
Is DT C P2123 indicated?
Is DT C P2123 indicated? Is t her e about 0.2 V or l ess?
Is t her e about 5 V ?
08/08/21 14:26:47 61SNR030_110_0257
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NO YES
NO
11-258Electronic Throttle Control System
DTC Troubleshooting (cont’d)
APP SENSOR 6P CONNECTOR
APSB (PUR)
APP SENSOR 6P CONNECTOR APSB (PUR)
JUMPER WIRE ECM/PCM CONNECTOR A (44P)
APSB (PUR)
APP SENSOR 6P CONNECTOR VCC5 (GRY)
JUMPER WIRE
APSB (PUR)
7. Turn the ignition switch to LOCK (0).
8. Jump the SCS line with the HDS.
9. Disconnect ECM/PCM connector A (44P).
10. Check for continuity between APP sensor 6P connector terminal No. 4 and body ground.
Repair short in the wire between the ECM/
PCM (A18) and the APP sensor, then go to step 24.
Go to step 11.
11. Connect APP sensor 6P connector terminal No. 4 to body ground with a jumper wire. 12. Check for continuity between ECM/PCM connector
terminal A18 and body ground.
Go to step 13.
Repair open in the wire between the ECM/
PCM (A18) and the APP sensor, then go to step 24.
13. Reconnect ECM/PCM connector A (44P).
14. Connect APP sensor 6P connector terminals No. 4 andNo.6withajumperwire.
Wire side of female terminals
Wire side of female terminals Terminal side of female terminals
Wire side of female terminals
Is there continuity? Is there continuity?
08/08/21 14:26:48 61SNR030_110_0258
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DYNOMITE -2009-


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NO
11-259
APP SENSOR 6P CONNECTORVCC5 (GRY)
JUMPER WIRE ECM/PCM CONNECTOR A (44P)
VCC5
(GRY)
15. Turn the ignition switch to ON (II).
16. Check APP SENSOR B in the DATA LIST with theHDS.
Go to step 29.
Go to step 22.
17. Turn the ignition switch to LOCK (0).
18. Jump the SCS line with the HDS.
19. Disconnect ECM/PCM connector A (44P).
20. Connect APP sensor 6P connector terminal No. 6 to body ground with a jumper wire. 21. Check for continuity between ECM/PCM connector
terminal A24 and body ground.
Go to step 30.
Repair open in the wire between the ECM/
PCM (A24) and the APP sensor, then go to step 24.
22. Turn the ignition switch to LOCK (0).
23. Replace the accelerator pedal module; K20Z2 engine (see page 11-269), K20Z3 engine (see page
11-270).
24. Reconnect all connectors.
25. Turn the ignition switch to ON (II).
26. Reset the ECM/PCM with the HDS.
27. Do the ECM/PCM idle learn procedure (see page 11-310).
28. Check for Temporary DTCs or DTCs with the HDS.
Check for poor connections or loose
terminals at the APP 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.
(cont’d)
Wire side of female terminals Terminal side of female terminals
Is t her e about 0.2 V or l ess?
Is there continuity?
Is DT C P2127 indicated?
08/08/21 14:26:48 61SNR030_110_0259
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DYNOMITE -2009-


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YES
NO
YES
NO
YES
NO
DTC P2128:
11-26011-260Electronic Throttle Control System
DTC Troubleshooting (cont’d)
APP SENSOR 6P CONNECTOR
SG5 (LT BLU) VCC5 (GRY)
29. Turn the ignition switch to LOCK (0).
30. Reconnect all connectors.
31. Update the ECM/PCM if it does not have the latestsoftware (see page 11-227), or substitute a known-
good ECM/PCM (see page 11-7).
32. Check for Temporary DTCs or DTCs with the HDS.
Check for poor connections or loose
terminals at the APP sensor and the ECM/PCM. If
the ECM/PCM was updated, substitute a known-
good ECM/PCM (see page 11-7), then recheck. 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. Turn the ignition switch to ON (II).
2. Check APP SENSOR B in the DATA LIST with the HDS.
Go to step 3.
Intermittent failure, the system is OK at this
time. Check for poor connections or loose terminals
at the APP sensor and the ECM/PCM.
3. Turn the ignition switch to LOCK (0).
4. Disconnect the APP sensor 6P connector.
5. Turn the ignition switch to ON (II).
6. Measure the voltage between APP sensor 6P connector terminals No. 5 and No. 6.
Go to step 12.
Go to step 7.APP Sensor B (TP Sensor E)
Circuit High Voltage
Wire side of female terminals
Is DT C P2127 indicated?
Is t her e about 4.9 V or mor e?
Is t her e about 5 V ?
08/08/21 14:26:48 61SNR030_110_0260
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YES
NO YES
NO
YES
NO
11-261
APP SENSOR 6P CONNECTOR
SG5 (LT BLU)
JUMPER WIRE
ECM/PCM CONNECTOR A (44P) SG5 (LT BLU)
7. Turn the ignition switch to LOCK (0).
8. Jump the SCS line with the HDS.
9. Disconnect ECM/PCM connector A (44P).
10. Connect APP sensor 6P connector terminal No. 5 to body ground with a jumper wire.
11. Check for continuity between ECM/PCM connector terminal A34 and body ground.
Go to step 19.
Repair open in the wire between the ECM/
PCM (A34) and the APP sensor, then go to step 14. 12. Turn the ignition switch to LOCK (0).
13. Replace the accelerator pedal module; K20Z2
engine (see page 11-269), K20Z3 engine (see page
11-270).
14. Reconnect all connectors.
15. Turn the ignition switch to ON (II).
16. Reset the ECM/PCM with the HDS.
17. Do the ECM/PCM idle learn procedure (see page 11-310).
18. Check for Temporary DTCs or DTCs with the HDS.
Check for poor connections or loose
terminals at the APP 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.
19. Reconnect all connectors.
20. 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).
21. Check for Temporary DTCs or DTCs with the HDS.
Check for poor connections or loose
terminals at the APP sensor and the ECM/PCM. If
the ECM/PCM was updated, substitute a known-
good ECM/PCM (see page 11-7), then recheck. 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.
Wire side of female terminals
Terminal side of female terminals
Is there continuity? Is DT C P2128 indicated?
Is DT C P2128 indicated?
08/08/21 14:26:49 61SNR030_110_0261
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