Acura RSX Honda Integra. Manual — part 242
05
*04
−
−
−
−
YES
NO
YES
NO
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
Wire side of female terminals
Is ther e continuity?
Is ther e about 5 V ?
05/06/27 17:50:03 61S6M040_140_0094
01
01
S6M6APJK77100090720FAAT00
−
−
−
−
−
−
DTC P0720:
2002-2004 Models
YES
NO
YES
NO
YES
NO
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
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
02
03
04
*02
−
−
−
−
−
−
−
−
YES
NO
YES
NO
YES
NO
YES
NO
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
Wire side of female terminals
Wire side of female terminals
Wire side of female terminals
Is ther e continuity?
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
NO
YES
NO
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
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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