ACURA CSX 2006 Service Repair Manual
Manufacturer: ACURA, Model Year: 2006, Model line: CSX, Model: ACURA CSX 2006Pages: 2893, PDF Size: 67.66 MB
Page 561 of 2893
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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 6P connector.
7. Jump the SCS line with the HDS.
8. Disconnect ECM/PCM connector C (44P).
9. Check for continuity between throttle body 6Pconnector terminal No. 3 and body ground.
Repair short in the wire between the throttle
body and the ECM/PCM (C21), then go to step 18.
Go to step 23. 10. Measure the voltage between throttle body 6P
connector terminal No. 2 and body ground.
Go to step 16.
Go to step 11.
11. Turn the ignition switch to LOCK (0).
12. Jump the SCS line with the HDS.
13. Disconnect ECM/PCM connector C (44P).
14. Disconnect the throttle body 6P connector.
(cont’d)
Wire side of female terminals Wire side of female terminals
Is there continuity?
Is t her e about 5 V ?
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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. Check for continuity between ECM/PCM connector
terminal C12 and throttle body 6P connector
terminal No. 2.
Go to step 23.
Repair open in the wire between the throttle
body and the ECM/PCM (C12), then go to step 18. 16. Turn the ignition switch to LOCK (0).
17. Replace the throttle body; K20Z2 engine (see page
11-348), K20Z3 engine (see page 11-349).
18. Reconnect all connectors.
19. Turn the ignition switch to ON (II).
20. Reset the ECM/PCM with the HDS.
21. Do the ECM/PCM idle learn procedure (see page 11-310).
22. 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.
23. Reconnect all connectors.
24. 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).
25. 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.
Wire side of
female terminals
Terminal side of female terminals
Is there continuity? Is DTC P0222 indicated?
Is DTC P0222 indicated?
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DTC P0223:
YES
NO
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NO YES
NO
11-239
THROTTLE BODY 6P CONNECTOR
TPSB (RED/BLU)
TP Sensor B 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. Clear the DTC with the HDS.
3. CheckTPSENSORBintheDATALISTwiththe HDS.
Go to step 4.
Intermittent failure, the system is OK at this
time. Check for poor connections or loose terminals
at the throttle body and the ECM/PCM.
4. Check for Temporary DTCs or DTCs with the HDS.
Go to step 13.
Go to step 5.
5. Turn the ignition switch to LOCK (0).
6. Disconnect the throttle body 6P connector.
7. Turn the ignition switch to ON (II). 8. Measure the voltage between throttle body 6P
connector terminal No. 3 and body ground.
Go to step 18.
Go to step 9.
9. Turn the ignition switch to LOCK (0).
10. Jump the SCS line with the HDS.
11. Disconnect ECM/PCM connector C (44P).
(cont’d)
Wire side of female terminals
Is t her e about 4.8 V or mor e?Ar e DT C P0123 and P0223 i nd i cat ed at t he sametime? Is t her e about 5 V ?
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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 CONNECTOR C (44P)
THROTTLE BODY 6P CONNECTOR
SG3 (GRN) SG3 (GRN)
12. Check for continuity between ECM/PCM connector
terminal C21 and throttle body 6P connector
terminal No. 3.
Go to step 25.
Repair open in the wire between the throttle
body and the ECM/PCM (C21), then go to step 20.
13. Turn the ignition switch to LOCK (0).
14. Disconnect the throttle body 6P connector.
15. Jump the SCS line with the HDS.
16. Disconnect ECM/PCM connector C (44P). 17. Check for continuity between ECM/PCM connector
terminal C39 and throttle body 6P connector
terminal No. 4.
Go to step 25.
Repair open in the wire between the throttle
body and the ECM/PCM (C39), then go to step 20.
Wire side of female terminals
Terminal side of female terminals Wire side of female terminals
Terminal side of female terminals
I s t her e cont i nui t y ? I s t her e cont i nui t y ?
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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 ?
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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 (WHT)
5. Test the ETCS control relay (see page 22-70).
Go to step 6.
Replace the ETCS control relay, then go to
step 13.
6. Jump the SCS line with the HDS.
7. Disconnect ECM/PCM connector A (44P).
8. Check for continuity between ECM/PCM connector terminal A20 and body ground.
Repair short in the wire between the
ECM/PCM (A20) and the ETCS control relay, then
go to step 13.
Go to step 9. 9. Disconnect ECM/PCM connector C (44P).
10. Turn the ignition switch to ON (II).
11. Measure the voltage between ECM/PCM connector terminal C1 and body ground.
Repair short to power in the wire between
the ECM/PCM (C1) and the ETCS control relay, then
go to step 12.
Go to step 18.
Terminal side of female terminals Terminal side of female terminals
I s t he E T CS cont r ol r el ay OK ?
Is there continuity? Is there battery voltage?
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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?
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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
7. Test the ETCS control relay (see page 22-70).
Go to step 8.
Replace the ETCS control relay, then go to
step 23.
8. Turn the ignition switch to ON (II).
9. Measure the voltage between ETCS control relay 4P connector terminal No. 4 and body ground.
Go to step 10.
Replace the under-hood fuse/relay box
(see page 22-65), then go to step 22. 10. Measure the voltage between ETCS control relay
4P connector terminal No. 1 and body ground.
Go to step 11.
Replace the under-hood fuse/relay box
(see page 22-65), then go to step 22.
11. Turn the ignition switch to LOCK (0).
12. Jump the SCS line with the HDS.
13. Disconnect ECM/PCM connector C (44P).
Terminal side of female terminals Terminal side of female terminals
I s t he E T CS cont r ol r el ay OK ?
Is there battery voltage? Is there battery voltage?
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11-245
IG1ETCS
ECM/PCM CONNECTOR C (44P)
IG1ETCS
(WHT) ETCS CONTROL RELAY 4P CONNECTOR
ECM/PCM CONNECTOR A (44P)
ETCSRLY
ETCSRLY
(YEL) ETCS CONTROL RELAY 4P CONNECTOR
14. Check for continuity between ETCS control relay 4P
connector terminal No. 2 and ECM/PCM connector
terminal C1.
Go to step 15.
Repair open in the wire between the ECM/
PCM (C1) and the ETCS control relay, then go to
step 23. 15. Disconnect ECM/PCM connector A (44P).
16. Check for continuity between ETCS control relay 4P
connector terminal No. 3 and ECM/PCM connector
terminal A20.
Go to step 28.
Repair open in the wire between the ECM/
PCM (A20) and the ETCS control relay, then go to
step 23.
(cont’d)
Terminal side of female terminalsTerminal side of female terminals
Terminal side of female terminalsTerminal side of female terminals
I s t her e cont i nui t y ?
I s t her e cont i nui t y ?
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11-246Electronic Throttle Control System
DTC Troubleshooting (cont’d)
F
ECM/PCM CONNECTOR C (44P)IG1ETCS (WHT) B
ETCS CONTROL RELAY 4P CONNECTOR
17. Remove the ETCS control relay (F) from the under-
hood fuse/relay box.
18. Jump the SCS line with the HDS.
19. Disconnect ECM/PCM connector C (44P).
20. Check for continuity between ECM/PCM connector terminal C1 and body ground.
Repair short in the wire between the ECM/
PCM (C1) and the ETCS control relay, then go to
step 23.
Go to step 21. 21. Check for continuity between ETCS control relay 4P
connector terminal No. 1 and body ground.
Replace the under-hood fuse/relay box
(see page 22-65), then go to step 23.
Go to step 28.
22. Turn the ignition switch to LOCK (0).
23. Reconnect all connectors.
24. Turn the ignition switch to ON (II).
25. Reset the ECM/PCM with the HDS.
26. Do the ECM/PCM idle learn procedure (see page 11-310).
27. 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.
Terminal side of female terminals Terminal side of female terminals
Is there continuity?
Is there continuity?
Is DTC P1659 indicated?
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