−
−
−
−
−
−
− YES
NO
YES NO
YES NO
YES NO
LG1 (BRN/YEL) LG2 (BRN/YEL) PCM CONNECTOR C (44P)
Sensor Intermittent Failure
NOTE:
• Before you troubleshoot, record all freeze data and any on-board snapshot, and review General Troubleshooting Information (see page 14-5).
• This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission.
1. Clear the DTC with the HDS.
2. Test-drive the vehicle for several minutes in the D position through all five gears.
3. Monitor the OBD STATUS for P0718 in the DTCs/
Freeze Data in A/T Mode Menu for a pass/fail.
Go to step 4.
Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the input shaft (mainshaft) speed sensor and the PCM. If the HDS indicates NOT COMPLETED, return to step 2 and recheck.
4. Turn the ignition switch OFF.
5. Disconnect the input shaft (mainshaft) speed sensor connector, and inspect the connector and connector terminals to be sure they are making good contact.
Go to step 6.
Repair the connector terminals, then go to step 6.
connector.
7. Test-drive the vehicle for several minutes in the D position through all five gears.
8. Monitor the OBD STATUS for P0718 in the DTCs/
Freeze Data in A/T Mode Menu for a pass/fail.
Go to step 9.
Troubleshooting is complete. If the HDS indicates NOT COMPLETED, return to step 7 and recheck.
9. Turn the ignition switch OFF.
10. Jump the SCS line with the HDS.
11. Disconnect PCM connector C (44P).
12. Check for continuity between PCM connector terminals C40 and body ground, and between C44 and body ground.
Go to step 13.
Repair open in the wires between PCM connector terminals C40, C44 and ground (G101), or repair poor ground (G101), then go to step 34.
Terminal side of female terminals Does the HDS indicate F AILED?
Ar e the connector ter minals OK ?
Does the HDS indicate F AILED?
Is ther e continuity?
＊０２
＊０３
−
−
−
− YES
NO
YES
NO VCC2 (YEL/BLU)
INPUT SHAFT (MAINSHAFT) SPEED SENSOR CONNECTOR
NM (WHT/RED) INPUT SHAFT (MAINSHAFT) SPEED SENSOR CONNECTOR 13. Connect PCM connector C (44P).
14. Disconnect the input shaft (mainshaft) speed sensor connector.
15. Turn the ignition switch ON (II).
16. Measure voltage between input shaft (mainshaft) speed sensor connector terminal No. 1 and body ground.
Go to step 17.
Go to step 26.
17. Turn the ignition switch OFF.
18. Disconnect PCM connector B (44P).
19. Check for continuity between input shaft
(mainshaft) speed sensor connector terminal No. 2 and body ground.
Repair short in the wire between PCM connector terminal B17 and the input shaft (mainshaft) speed sensor connector, then go to step 34.
Go to step 20.
20. Connect PCM connector B (44P).
21. Turn the ignition switch ON (II).
Wire side of female terminals
Wire side of female terminals
Is ther e about 5 V ?
Is ther e continuity?
＊０４
＊０５
＊０６
＊０７
−
−
−
−
−
−
− YES
NO
YES NO
YES NO
YES NM (WHT/RED)
INPUT SHAFT (MAINSHAFT) SPEED SENSOR CONNECTOR
INPUT SHAFT (MAINSHAFT) SPEED SENSOR CONNECTOR
NM (WHT/RED)
PCM CONNECTOR B (44P)
NM (WHT/RED)
VCC2 (YEL/BLU) INPUT SHAFT (MAINSHAFT) SPEED SENSOR CONNECTOR
VCC2 (YEL/BLU) PCM CONNECTOR B (44P)
VCC2 (YEL/BLU) PCM CONNECTOR B (44P) speed sensor connector terminal No. 2 and body
ground.
Replace the input shaft (mainshaft) speed sensor (see page 14-246), then go to step 34.
Go to step 23.
23. Turn the ignition switch OFF.
24. Disconnect PCM connector B (44P).
25. Check for continuity between PCM connector terminal B17 and input shaft (mainshaft) speed sensor connector terminal No. 2.
Go to step 30.
Repair open in the wire between PCM connector terminal B17 and the input shaft
27. Disconnect PCM connector B (44P).
28. Check for continuity between PCM connector terminal B18 and input shaft (mainshaft) speed sensor connector terminal No. 1.
Go to step 29.
Repair open in the wire between PCM connector terminal B18 and the input shaft (mainshaft) speed sensor, then go to step 34.
29. Check for continuity between PCM connector terminal B18 and body ground.
Repair short in the wire between PCM connector terminal B18 and the input shaft (mainshaft) speed sensor, then go to step 34.
Wire side of female terminals
Wire side of female terminals Terminal side of
female terminals
Wire side of female terminals Terminal side of
female terminals
Terminal side of female terminals Is ther e about 5 V ?
Is ther e continuity?
Is ther e continuity?
Is ther e continuity?
−
−
−
−
−
−
−
− YES
NO
YES
NO
YES
NO
YES
NO 30. Update the PCM if it does not have the latest
software (see page 14-9), or substitute a known-good PCM (see page 14-10).
31. Test-drive the vehicle for several minutes in the D position through all five gears.
32. Check for DTC(s) in the DTCs/Freeze Data in A/T Mode Menu with the HDS.
If the PCM was updated, substitute a known-good PCM (see page 14-10), then recheck. If the PCM was substituted, go to step 1.
If DTC P0718 is not indicated, or if any other DTCs are indicated, go to step 33.
33. Monitor the OBD STATUS for P0718 in the DTCs/
Freeze Data in A/T Mode Menu for a pass/fail.
If the PCM was updated, troubleshooting is complete. If the PCM was substituted, replace the original PCM; R20A1 and R20A2 engine models (see page 11-226), K24Z1 engine model (see page 11-613). If any other DTCs were indicated on step 32, go to the indicated DTC’s troubleshooting.
If the HDS indicates FAILED, check for poor connections and loose terminals at the input shaft (mainshaft) speed sensor and the PCM. If the PCM was updated, substitute a known-good PCM (see page 14-10), then recheck. If the PCM was substituted, go to step 1. If the HDS indicates NOT COMPLETED, keep idling until a result comes on.
34. Clear the DTC with the HDS.
35. Test-drive the vehicle for several minutes in the D position through all five gears.
36. Check for DTC(s) in the DTCs/Freeze Data in A/T Mode Menu with the HDS.
Check for poor connections and loose terminals at the input shaft (mainshaft) speed sensor and the PCM, then go to step 1.
If DTC P0718 is not indicated, or if any other DTCs are indicated, go to step 37.
37. Monitor the OBD STATUS for P0718 in the DTCs/
Freeze Data in A/T Mode Menu for a pass/fail.
Troubleshooting is complete. If any other DTCs were indicated on step 36, go to the indicated DTC’s troubleshooting.
If the HDS indicates FAILED, check for poor connections and loose terminals at the input shaft (mainshaft) speed sensor and the PCM, then go to step 1. If the HDS indicates NOT COMPLETED, return to step 35 and recheck.
Is DT C P07 18 indicated?
Does the HDS indicate PASSED?
Is DT C P07 18 indicated?
Does the HDS indicate PASSED?
−
＊０１
−
−
−
−
YES NO
YES NO
LG1 (BRN/YEL) LG2 (BRN/YEL) PCM CONNECTOR C (44P)