ACURA CSX 2006 Service Repair Manual


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11-22811-228 PGM-FI System
ECM/PCM Update (cont’d)
ECM/PCM Replacement
A
7. If the software in the ECM/PCM is the latest,
disconnect the HDS/HIM from the DLC, and go back
to the procedure that you were doing. If the
software in the ECM/PCM is not the latest, follow
the instructions on the screen. If prompted to
choose the PGM-FI system or the A/T system (A/T),
make sure you update both.
NOTE: If the ECM/PCM update system requires you
to cool the ECM/PCM, follow the instructions on the
screen. If you have a problem during the update
(programming takes over 15 minutes, status bar
goes over 100 %, D (A/T) or immobilizer indicator
flashes, HDS tablet freezes, etc.), follow these steps
to minimize the chance of damaging the ECM/PCM: Leave the ignition switch in ON (II).
 Connect a jumper battery (do not connect a battery charger).
 Shut down the HDS.
 Disconnect the HDS from the DLC.
 Reboot the HDS.
 Reconnect the HDS to the DLC, and do the update again.
8. If the TP POSITION CHECK failed in step 5, clean the throttle body (see page 11- 344).
9. Do the ECM/PCM idle learn procedure (see page 11-310).
10. Do the CKP pattern clear/CKP pattern learn procedure (see page 11-4).  Honda diagnostic system (HDS) tablet tester
 Honda interface module (HIM) and an iN workstation
with the latest HDS software version
 HDS pocket tester
 GNA 600 and an iN workstation with the latest HDS software version
Any one of the above updating tools can be used.
1. Connect the HDS to the data link connector (DLC) (A) located under the driver’s side of the dashboard.
2. Turn the ignition switch to ON (II).
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11-22811-228 PGM-FI System
ECM/PCM Update (cont’d)
ECM/PCM Replacement
A
7. If the software in the ECM/PCM is the latest,
disconnect the HDS/HIM from the DLC, and go back
to the procedure that you were doing. If the
software in the ECM/PCM is not the latest, follow
the instructions on the screen. If prompted to
choose the PGM-FI system or the A/T system (A/T),
make sure you update both.
NOTE: If the ECM/PCM update system requires you
to cool the ECM/PCM, follow the instructions on the
screen. If you have a problem during the update
(programming takes over 15 minutes, status bar
goes over 100 %, D (A/T) or immobilizer indicator
flashes, HDS tablet freezes, etc.), follow these steps
to minimize the chance of damaging the ECM/PCM: Leave the ignition switch in ON (II).
 Connect a jumper battery (do not connect a battery charger).
 Shut down the HDS.
 Disconnect the HDS from the DLC.
 Reboot the HDS.
 Reconnect the HDS to the DLC, and do the update again.
8. If the TP POSITION CHECK failed in step 5, clean the throttle body (see page 11- 344).
9. Do the ECM/PCM idle learn procedure (see page 11-310).
10. Do the CKP pattern clear/CKP pattern learn procedure (see page 11-4).  Honda diagnostic system (HDS) tablet tester
 Honda interface module (HIM) and an iN workstation
with the latest HDS software version
 HDS pocket tester
 GNA 600 and an iN workstation with the latest HDS software version
Any one of the above updating tools can be used.
1. Connect the HDS to the data link connector (DLC) (A) located under the driver’s side of the dashboard.
2. Turn the ignition switch to ON (II).
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11-229
A
D
9.8 N·m
(1.0 kgf·m,
7.2 lbf·ft)
A
B
C
E
3. Make sure the HDS communicates with the ECM/ PCM and other vehicle systems. If it doesn’t, go to
the DLC circuit troubleshooting (see page 11-204). If
you are returning from DLC circuit troubleshooting,
skip steps 4 through 9, 20 through 25, and 28
through 30, and do these procedures after
replacing the ECM/PCM;
 Replace the engine oil (see page 8-10) and the engine oil filter (see page 8-11).
 Replace the ATF (A/T model) (see page 14-232).
 Clean the throttle body (see page 11- 344).
4. Select the PGM-FI system with the HDS.
5. Select the INSPECTION MENU with the HDS.
6. Select the ETCS TEST, then select the TP POSITION CHECK, and follow the screen prompts.
NOTE: If the TP POSITION CHECK indicates FAILED,
continue with this procedure.
7. Select the REPLACE ECM/PCM MENU, then select READ DATA, and follow the screen prompts.
NOTE: Doing this step copies (READS) the engine oil life data from the original ECM/PCM so you can later
download (WRITES) it into the new ECM/PCM.
 If READ DATA indicates FAILED, continue with this procedure.
8. A/T model: Select the A/T system with the HDS.
9. A/T model: Select the REPLACE TCM/PCM MENU, then select READ DATA and follow the screen
prompts.
NOTE: Doing this step copies (READS) the ATF life data from the original PCM so you can later download
(WRITES) it into the new PCM.
 If READ DATA indicates FAILED, continue with this procedure. 10. Turn the ignition switch to LOCK (0).
11. Jump the SCS line with the HDS.
12. Do the battery removal procedure (see page 22-69).
13. Remove the cover (A).
14. Remove the bolts (D), then remove the ECM/PCM
(E).
15. Disconnect ECM/PCM connectors A, B, and C. NOTE: ECM/PCM connectors A, B, and C have
symbols (A= , B= , C= ) embossed on them for
identification.
(cont’d)
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11-230PGM-FI System
ECM/PCM Replacement (cont’d)
16. Install the parts in the reverse order of removal.
17. Do the battery installation procedure (see page
22-69).
18. Turn the ignition switch to ON (II).
19. Manually input the VIN to the ECM/PCM with the HDS.
NOTE: DTC P0630 VIN Not Programmed or
Mismatch may be stored because the VIN has not
been programmed into the ECM/PCM; ignore it,
and continue this procedure.
20. If the READ DATA (engine oil life) failed in step 7, go to step 23 (A/T) or step 26 (M/T). Otherwise, go
to step 21.
21. Select the PGM-FI system with the HDS.
22. Select the REPLACE ECM/PCM MENU, then select WRITE DATA, and follow the screen prompts.
NOTE: If the WRITE DATA indicates FAILED,
continue with this procedure.
23. A/T model: If the READ DATA (ATF life) failed in step 9, go to step 26. Otherwise go to step 24.
24. A/T model: Select the A/T SYSTEM with the HDS.
25. A/T model: Select the REPLACE TCM/PCM MENU, then select WRITE DATA, and follow the screen
prompts.
NOTE: If the WRITE DATA indicates FAILED,
continue with this procedure.
26. Select IMMOBI system with the HDS.
27. Enter the immobilizer code that you got from the iN or use the ECM/PCM replacement procedure in the
HDS; it allows you to start the engine.
28. If the TP POSITION CHECK failed in step 7, clean the throttle body (see page 11- 344), then go to step
29. 29. IftheREADDATAfailedinstep8ortheWRITE
DATA failed in step 22, replace the engine oil
(see page 8-10) and engine oil filter (see page 8-11),
then go to step 30 (A/T) or step 31 (M/T).
30. If the READ DATA failed in step 10 or the WRITE DATA failed in step 27, replace the ATF (see page
14-232), then go to step 31.
31. Select PGM-FI system, and reset the ECM/PCM with the HDS.
32. Update the ECM/PCM if it does not have the latest software (see page 11-227).
33. Do the ECM/PCM idle learn procedure (see page 11-310).
34. Do the CKP pattern clear/CKP pattern learn procedure (see page 11-4).
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11-231
Electronic Throttle Control System
Component Location Index
ELECTRONIC THROTTLE
CONTROL SYSTEM (ETCS)
CONTROL RELAY
ENGINE CONTROL MODULE (ECM)/
POWERTRAIN CONTROL MODULE (PCM)
THROTTLE ACTUATOR and
THROTTLE POSITION (TP) SENSOR
ACCELERATOR PEDAL POSITION (APP) SENSOR ACCELERATOR PEDAL MODULEUpdate, page 11-227
Substitution, page 11-7
Replacement, page 11-228
* : This illustration shows K20Z2 engine
Signal Inspection, page 11-268 Removal/Installation, page 11-269
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DTC P0122:
YES
NO
YES
NO YES
NO
YES
NO
11-232Electronic Throttle Control System
DTC Troubleshooting
THROTTLE BODY 6P CONNECTOR
TPSA (RED/BLK)
THROTTLE BODY 6P CONNECTOR VCC3 (BLU)
TP Sensor A 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. Clear the DTC with the HDS.
3. Check TP SENSOR A in the DATA LIST 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 throttle body and the ECM/PCM.
4. Check for Temporary DTCs or DTCs with the HDS.
Go to step 10.
Go to step 5.
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 6P
connector terminal No. 1 and body ground.
Repair short in the wire between the throttle
body and the ECM/PCM (C20), 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.
Wire side of female terminals
Wire side of female terminals
Is t her e about 0.3 V or l ess?
Ar e DT C P0122 and P0222 i nd i cat ed at t he sametime? Is there continuity?
Is t her e about 5 V ?
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YES
NO YES
NO
YES
NO
11-233
ECM/PCM CONNECTOR C (44P)
THROTTLE BODY 6P CONNECTOR
VCC3 (BLU) VCC3 (BLU)
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.
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 P0122 indicated?
Is DTC P0122 indicated?
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DTC P0123:
YES
NO
YES
NO YES
NO
11-234Electronic Throttle Control System
DTC Troubleshooting (cont’d)
THROTTLE BODY 6P CONNECTOR
TPSA (RED/BLK)
TP Sensor A 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. Check TP SENSOR A in the DATA LIST 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 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. 1 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).
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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YES
NO
YES
NO
11-235
ECM/PCM CONNECTOR C (44P)
THROTTLE BODY 6P CONNECTOR
TPSA (RED/BLK) TPSA (RED/BLK)
ECM/PCM CONNECTOR C (44P)
THROTTLE BODY 6P CONNECTOR
SG3 (GRN) SG3 (GRN)
12. Check for continuity between ECM/PCM connector
terminal C20 and throttle body 6P connector
terminal No. 1.
Go to step 25.
Repair open in the wire between the throttle
body and the ECM/PCM (C20), 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.
(cont’d)
Wire side of
female terminals
Terminal side of female terminals Wire side of female terminals
Terminal side of female terminals
Is there continuity? Is there continuity?
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YES
NO
YES
NO YES
NO
YES
NO
DTC P0222:
11-23611-236Electronic Throttle Control System
DTC Troubleshooting (cont’d)
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. 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 10.
Go to step 5.TP Sensor B Circuit Low Voltage
Is DTC P0123 indicated?
Is DTC P0123 indicated? Is t her e about 0.3 V or l ess?
Ar e DT C P0122 and P0222 i nd i cat ed at t he sametime?
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