Acura CSX. Instruction — page 141

01

02

YES

NO

YES

NO

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 6P

connector 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.

Wire side of female terminals

Wire side of female terminals

Is ther e continuity?

Is ther e about 5 V ?

08/08/21 14:23:44 61SNR030_110_0237

03

YES

NO

YES

NO

YES

NO

11-238

Electronic Throttle Control System

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 ther e continuity?

Is DT C P0222 indicated?

Is DT C P0222 indicated?

08/08/21 14:23:45 61SNR030_110_0238

01

SNR9AA7K72100090223FAAT30

DTC P0223:

YES

NO

YES

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. Check TP SENSOR B 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. 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).

Wire side of female terminals

Is ther e about 4.8 V or mor e?

Ar e DT C P0123 and P0223 indicated at the same
time?

Is ther e about 5 V ?

08/08/21 14:23:45 61SNR030_110_0239

02

03

YES

NO

YES

NO

11-240

Electronic Throttle Control System

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

Is ther e continuity?

Is ther e continuity?

08/08/21 14:23:45 61SNR030_110_0240

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