Acura CSX. Instruction — page 114

06

YES

NO

YES

NO

YES

NO

11-130

PGM-FI System

ECM/PCM CONNECTOR C (44P)

CKP (BLU/YEL)

16. Check for continuity between ECM/PCM connector

terminal C32 and body ground.

Go to step 26.

Repair open in the wire between the ECM/

PCM (C32) and the CKP sensor, then go to step 19.

17. Turn the ignition switch to LOCK (0).

18. Replace the CKP sensor (see page 11-222).

19. Reconnect all connectors.

20. Turn the ignition switch to ON (II).

21. Reset the ECM/PCM with the HDS.

22. Clear the CKP pattern with the HDS.

23. Do the ECM/PCM idle learn procedure (see page

11-310).

24. Do the CKP pattern learn procedure (see page 11-4).

25. Check for Temporary DTCs or DTCs with the HDS.

Check for poor connections or loose

terminals at the CKP 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.

26. Reconnect all connectors.

27. 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).

28. Check for Temporary DTCs or DTCs with the HDS.

Check for poor connections or loose

terminals at the CKP 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 ther e continuity?

Is DT C P0335 indicated?

Is DT C P0335 indicated?

08/08/21 14:18:54 61SNR030_110_0130

SNR9AA7K72100090339FAAT00

DTC P0339:

YES

NO

YES

NO

YES

NO

YES

NO

YES

NO

11-131

CKP Sensor Circuit Intermittent

Interruption

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. Start the engine, and let it idle for 10 seconds.

4. Check the CKP NOISE in the DATA LIST with the

HDS.

Go to step 7.

Go to step 5.

5. Test-drive the vehicle for several minutes in the

range of these recorded freeze data parameters:

• ENGINE SPEED
• VSS

6. Check the CKP NOISE in the DATA LIST with the

HDS.

Go to step 7.

Intermittent failure, the system is OK at this

time. Check for poor connections or loose terminals
at the CKP sensor and the ECM/PCM.

7. Check for poor connections or loose terminals at

these locations:

• CKP sensor
• ECM/PCM
• Engine ground
• Body ground

Go to step 8.

Repair or replace the connections or the

terminals, then go to step 11.

8. Remove the cam chain case (see step 13 on page

6-19), then check for damage on the CKP sensor
pulser plate.

Replace the CKP sensor pulser plate

(see page 6-34), then go to step 11.

Go to step 9.

9. Turn the ignition switch to LOCK (0).

10. Replace the CKP sensor (see page 11-222).

11. Turn the ignition switch to ON (II).

12. Reset the ECM/PCM with the HDS.

13. Clear the CKP pattern with the HDS.

14. Do the ECM/PCM idle learn procedure (see page

11-310).

15. Do the CKP pattern learn procedure (see page 11-4).

16. Start the engine, and let it idle for 10 seconds.

17. Check for Temporary DTCs or DTCs with the HDS.

Check for poor connections or loose

terminals at the CKP 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.

Ar e 0 counts indicated?

Ar e 0 counts indicated?

Ar e the connections and ter minals OK ?

Is the pulser plate damaged?

Is DT C P0339 indicated?

08/08/21 14:18:54 61SNR030_110_0131

01

02

03

SNR9AA7K72100090365FAAT00

DTC P0365:

YES

NO

YES

NO

YES

NO

YES

NO

11-132

PGM-FI System

CMP SENSOR B 3P CONNECTOR

IGP (YEL/BLK)

CMPB (GRN)

CMP SENSOR B 3P CONNECTOR

IGP
(YEL/BLK)

LG
(BRN/YEL)

CMP SENSOR B 3P CONNECTOR

CMP Sensor B No Signal

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. Start the engine.

4. Check for Temporary DTCs or DTCs with the HDS.

Go to step 5.

Intermittent failure, the system is OK at this

time. Check for poor connections or loose terminals
at CMP sensor B and the ECM/PCM.

5. Turn the ignition switch to LOCK (0).

6. Disconnect the CMP sensor B 3P connector.

7. Turn the ignition switch to ON (II).

8. Measure the voltage between CMP sensor B 3P

connector terminal No. 3 and body ground.

Go to step 9.

Repair open in the wire between CMP sensor

B and PGM-FI main relay 1, then go to step 18.

9. Measure the voltage between CMP sensor B 3P

connector terminal No. 1 and body ground.

Go to step 10.

Go to step 11.

10. Measure the voltage between CMP sensor 3P

connector terminals No. 2 and No. 3.

Go to step 16.

Repair open in the wire between CMP sensor

B and G101; A/T model (see page 22-16), M/T
model (see page 22-18), then go to step 18.

Wire side of female terminals

Wire side of female terminals

Wire side of female terminals

Is DT C P0365 indicated?

Is ther e batter y voltage?

Is ther e about 5 V ?

Is ther e batter y voltage?

08/08/21 14:18:55 61SNR030_110_0132

04

05

YES

NO

YES

NO

11-133

ECM/PCM CONNECTOR C (44P)

CMPB (GRN)

CMPB (GRN)

ECM/PCM CONNECTOR C (44P)

CMPB (GRN)

CMP SENSOR B 3P CONNECTOR

11. Turn the ignition switch to LOCK (0).

12. Jump the SCS line with the HDS.

13. Disconnect ECM/PCM connector C (44P).

14. Check for continuity between ECM/PCM connector

terminal C31 and body ground.

Repair short in the wire between the ECM/

PCM (C31) and CMP sensor B, then go to step 18.

Go to step 15.

15. Check for continuity between CMP sensor B 3P

connector terminal No. 1 and ECM/PCM connector
terminal C31.

Go to step 23.

Repair open in the wire between the ECM/

PCM (C31) and CMP sensor B, then go to step 18.

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 14:18:55 61SNR030_110_0133

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