Acura TSX / Honda Accord CL. Manual — part 949

Fig. 108: Measuring The Voltage Between Shift Solenoid Harness Connector Terminals No. 6
& No. 7

7. Measure the voltage between PCM connector terminal C14 and body ground.

Is there about 5 V?

YES: Repair open in the wire between PCM connector terminal C14 and the shift solenoid
harness connector, then go to step 8.

NO: Check for loose or poor connections at PCM connector terminal C14. If the connection
is OK, update the PCM if it does not have the latest software, or substitute a known-good
PCM (see PCM UPDATING & SUBSTITUTION FOR TESTING ), then recheck. If the
symptom/indication goes away with a known-good PCM, replace the original PCM.

2004 Acura TSX

2004 AUTOMATIC TRANSMISSIONS Diagnosis - MCTA 5-Speed

Fig. 109: Measuring The Voltage Between PCM Connector Terminal C14 & Body Ground

8. Clear the DTC with the HDS.

9. Test-drive the vehicle for several minutes in the D position in all five gears.

10. Check the OBD STATUS in DTCs MENU for a pass/fail test of code P0713.

2004 Acura TSX

2004 AUTOMATIC TRANSMISSIONS Diagnosis - MCTA 5-Speed

Did the result indicate a pass?

YES: The problem has been corrected.

NO: Return to step 1 and recheck.

DTC P0716: PROBLEM IN MAINSHAFT SPEED SENSOR CIRCUIT

1. Record all freez data, then clear the DTC with the HDS.

2. Check for proper mainshaft speed sensor installation (see MAINSHAFT SPEED SENSOR

REPLACEMENT ).

3. Raise the front of the vehicle, make sure it is securely supported, and allow the front wheels to rotate

freely.

4. Start the engine, drive the vehicle in the D position, and hold the vehicle at speeds over 30 mph (48 km/h)

for more than 10 seconds.

5. Check the OBD STATUS in DTCs MENU for a pass/fail test of code P0716.

Did the result indicate a fail?

YES: Go to step 6.

NO: Intermittent failure, the system is OK at this time. If the tester indicates NOT
COMPLETE, return to step 4 and recheck.

6. Turn the ignition switch OFF.

7. Jump the SCS line with the HDS.

8. Disconnect PCM connector A (31P) and mainshaft speed sensor connector.

9. Check for continuity between PCM connector terminals A8 and body ground, and between A9 and body

ground.

Is there continuity?

YES: Go to step 10.

NO: Repair open in the wires between PCM connector terminals A8, A9 and ground (G
101), or repair poor ground (G101), then go to step 30 .

NOTE:

z

Record all freeze data and review General Troubleshooting Information
(see GENERAL TROUBLESHOOTING INFORMATION ) before you
troubleshoot.

z

This code is caused by an electrical circuit problem and cannot be caused
by a mechanical problem in the transmission.

2004 Acura TSX

2004 AUTOMATIC TRANSMISSIONS Diagnosis - MCTA 5-Speed

Fig. 110: Checking For Continuity Between PCM Connector Terminals A8 & Body Ground &
Between A9 & Body Ground

10. Connect PCM connector A (31P).

11. Turn the ignition switch ON (II).

12. Measure the voltage between mainshaft speed sensor connector terminal No. 1 and body ground.

Is there about 5 V?

YES: Go to step 13.

NO: Go to step 24 .

2004 Acura TSX

2004 AUTOMATIC TRANSMISSIONS Diagnosis - MCTA 5-Speed