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Acura RSX Honda Integra. Manual - part 242

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＊０４

−

YES

14-93

PCM CONNECTOR A (31P)

VCC2 (YEL/BLU)

LG1 (BRN/YEL)

NM (WHT/RED)

A (31P)

C (22P)

PCM CONNECTORS

20. Turn the ignition switch OFF.

21. Disconnect PCM connector A (31P).

22. Check for continuity between PCM connector

terminal A20 and body ground.

Repair short to ground in the wire between

PCM connector terminal A20 and the input shaft
(mainshaft) speed sensor connector.

NOTE: A short to ground on this circuit will damage
the PCM.

Update the PCM if it does not have the latest

software or substitute a known-good PCM
(see page 14-7), then recheck. If the symptom/
indication goes away with a known-good PCM,
replace the original PCM.

23. Measure the voltage between PCM connector

terminals C7 and A24.

Repair open in the wire between PCM

connector terminal C7 and the input shaft
(mainshaft) speed sensor connector.

Update the PCM if it does not have the latest

software or substitute a known-good PCM
(see page 14-7), then recheck. If the symptom/
indication goes away with a known-good PCM,
replace the original PCM.

Wire side of female terminals

Is ther e continuity?

Is ther e about 5 V ?

05/06/27 17:50:03 61S6M040_140_0094

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Ｓ６Ｍ６ＡＰＪＫ７７１０００９０７２０ＦＡＡＴ００

−

DTC P0720:

2002-2004 Models

YES

14-94

Automatic Transmission

DTC Troubleshooting (cont’d)

PCM CONNECTOR A (31P)

LG1 (BRN/YEL)

LG2 (BRN/YEL)

OUTPUT SHAFT (COUNTERSHAFT)
SPEED SENSOR CONNECTOR

VCC1 (YEL/RED)

Problem in Output Shaft

(Countershaft) Speed Sensor Circuit

NOTE: Record all freeze data and review General
Troubleshooting Information (see page 14-3) before
you troubleshoot.

1. Turn the ignition switch ON (II).

2. Check whether the scan tool or the HDS indicates a

code for the manifold absolute pressure (MAP)
sensor.

Perform the troubleshooting for the indicated

MAP sensor (see page 11-98). Recheck for code
P0720 after troubleshooting.

Go to step 3.

3. Turn the ignition switch OFF.

4. Disconnect PCM connector A (31P).

5. Check for continuity between PCM connector

terminals A23 and body ground, and between A24
and body ground.

Go to step 6.

Repair open in the wires between PCM

connector terminals A23 and ground (G101),
between A24 and ground (G101), and repair poor
ground (G101).

6. Connect PCM connector A (31P).

7. Disconnect the output shaft (countershaft) speed

sensor connector.

8. Turn the ignition switch ON (II).

9. Measure the voltage between output shaft

(countershaft) speed sensor connector terminal
and body ground.

Go to step 10.

Go to step 20.

10. Turn the ignition switch OFF.

Wire side of female terminals

Does the scan tool or the HDS indicate a code f or
the MAP sensor ?

Is ther e continuity?

Is ther e about 5 V ?

05/06/27 17:50:03 61S6M040_140_0095

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０３

０４

＊０２

−

YES

14-95

OUTPUT SHAFT (COUNTERSHAFT)
SPEED SENSOR CONNECTOR

NC (BLU)

(BRN/YEL)

OUTPUT SHAFT (COUNTERSHAFT)
SPEED SENSOR CONNECTOR

NC (BLU)

(BRN/YEL)

OUTPUT SHAFT (COUNTERSHAFT)
SPEED SENSOR CONNECTOR

LG1 (BRN/YEL)

NC (BLU)

A (31P)

C (22P)

PCM CONNECTORS

11. Check for continuity between output shaft

(countershaft) speed sensor connector terminal
No. 2 and body ground.

Repair short to ground in the wire between

PCM connector terminal C15 and the output shaft
(countershaft) speed sensor connector.

Go to step 12.

12. Check for continuity between output shaft

(countershaft) speed sensor connector terminal
No. 3 and body ground.

Go to step 13.

Repair open in the wire between the output

shaft (countershaft) speed sensor connector and
ground (G101).

13. Turn the ignition switch ON (II).

14. Measure the voltage between output shaft

(countershaft) speed sensor connector terminal
No. 2 and No. 3.

Go to step 15.

Go to step 24.

15. Connect the output shaft (countershaft) speed

sensor connector.

16. Measure the voltage between PCM connector

terminals C15 and A24.

Go to step 17.

Replace the output shaft (countershaft) speed

sensor.

(cont’d)

Wire side of female terminals

Is ther e continuity?

Is ther e about 5 V ?

Is the voltage 0 V or about 5 V ?

05/06/27 17:50:03 61S6M040_140_0096

−

＊０３

＊０４

−

YES

14-96

Automatic Transmission

DTC Troubleshooting (cont’d)

LG1 (BRN/YEL)

NC (BLU)

A (31P)

C (22P)

PCM CONNECTORS

LG1
(BRN/YEL)

PCM CONNECTOR A (31P)

VCC1 (YEL/RED)

17. Raise the front of the vehicle, make sure it is

securely supported, and allow the front wheels to
rotate freely.

18. Start the engine, then shift to the D position and let

the wheels rotate.

19. Measure the voltage between PCM connector

terminals C15 and A24.

Update the PCM if it does not have the latest

software, or substitute a known-good PCM
(see page 14-7), then recheck. If the symptom/
indication goes away with a known-good PCM,
replace the original PCM.

Replace the output shaft (countershaft) speed

sensor.

20. Measure the voltage between PCM connector

terminals A21 and A24.

Repair open in the wire between PCM

connector terminal A21 and the output shaft
(countershaft) speed sensor connector.

Go to step 21.

Wire side of female terminals

Is ther e 1.5

3.5 V ?

Is ther e about 5 V ?

05/06/27 17:50:04 61S6M040_140_0097

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