2006 ACURA CSX Service Repair Manual

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Page 561 of 2893

ACURA CSX 2006 Service Repair Manual

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11-237
THROTTLE BODY 6P CONNECTOR
TPSB (RED/BLU) THROTTLE BODY 6P CONNECTOR
VCC3 (BLU)
5. Turn the ignition switch to LOCK (0).
6. Disconnect the throttle body 6

Page 562 of 2893

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11-238Electronic Throttle Control System
DTC Troubleshooting (cont’d)
ECM/PCM CONNECTOR C (44P)
THROTTLE BODY 6P CONNECTOR
VCC3 (BLU) VCC3 (BLU)
15.

Page 563 of 2893

ACURA CSX 2006 Service Repair Manual
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DTC P0223:
YES
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NO YES
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11-239
THROTTLE BODY 6P CONNECTOR
TPSB (RED/BLU)
TP Sensor B Circuit High Voltage
NOTE:

Page 564 of 2893

ACURA CSX 2006 Service Repair Manual
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11-240Electronic Throttle Control System
DTC Troubleshooting (cont’d)
ECM/PCM CONNECTOR C (44P)
THROTTLE BODY 6P CONNECTOR
TPSB (RED/BLU)TPSB (RED/BLU)
ECM/PCM

Page 565 of 2893

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DTC P1658:
11-24111-241
F
18. Turn the ignition switch to LOCK (0).
19. Replace the throttle bod

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DTC P1658:
11-24111-241
F
18. Turn the ignition switch to LOCK (0).
19. Replace the throttle body; K20Z2 engine (see page
11-348), K20Z3 engine (see page 11-349).
20. Reconnect all connectors.
21. Turn the ignition switch to ON (II).
22. Reset the ECM/PCM with the HDS.
23. Do the ECM/PCM idle learn procedure (see page 11-310).
24. 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 go to step 1.
Troubleshooting is complete. If any other
Temporary DTCs or DTCs are indicated, go to the
indicated DTC’s troubleshooting.
25. Reconnect all connectors.
26. 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).
27. 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 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. Do the ETCS TEST in the INSPECTION MENU with the HDS.
Intermittent failure, the system is OK at this
time. Check for poor connections or loose terminals
at the ETCS control relay and the ECM/PCM.
Go to step 3.
3. Turn the ignition switch to LOCK (0).
4. Remove the ETCS control relay (F) from the under- hood fuse/relay box.
(cont’d)ETCS Control Relay ON
Malfunction
Is DTC P0223 indicated?
Is DTC P0223 indicated? Is the RELAY circuit OK ?
08/08/21 14:26:40 61SNR030_110_0241
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Page 566 of 2893

ACURA CSX 2006 Service Repair Manual
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11-242Electronic Throttle Control System
DTC Troubleshooting (cont’d)
ECM/PCM CONNECTOR A (44P)
ETCSRLY
(YEL) ECM/PCM CONNECTOR C (44P)
IG1ETCS

Page 567 of 2893

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DTC P1659:
11-24311-243
F
12. Turn the ignition switch to LOCK (0).
13. Reconnect

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DTC P1659:
11-24311-243
F
12. Turn the ignition switch to LOCK (0).
13. Reconnect all connectors.
14. Turn the ignition switch to ON (II).
15. Reset the ECM/PCM with the HDS.
16. Do the ECM/PCM idle learn procedure (see page
11-310).
17. Check for Temporary DTCs or DTCs with the HDS.
Check for poor connections or loose
terminals at the ETCS control relay 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.
18. Turn the ignition switch to LOCK (0).
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 ETCS control relay 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. Clear the DTC with the HDS.
3. Check for Temporary DTCs or DTCs with the HDS.
Go to step 4.
Intermittent failure, the system is OK at this
time. Check for poor connections or loose terminals
at the ETCS control relay and the ECM/PCM.
4. Turn the ignition switch to LOCK (0).
5. Check the No. 21 DBW (THROTTLE ACTUATOR CONTROL) (15 A) fuse in the under-hood fuse/relay
box.
Go to step 6.
Go to step 17.
6. Remove the ETCS control relay (F) from the under- hood fuse/relay box.
(cont’d)ETCS Control Relay OFF
Malfunction
Is DTC P1658 indicated?
Is DTC P1658 indicated? Is DTC P1659 indicated?
IsthefuseOK?
08/08/21 14:26:41 61SNR030_110_0243
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Page 568 of 2893

ACURA CSX 2006 Service Repair Manual
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11-244Electronic Throttle Control System
DTC Troubleshooting (cont’d)
ETCS CONTROL RELAY 4P CONNECTOR
IGP B
ETCS CONTROL RELAY 4P CONNECTOR

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