Acura TSX / Honda Accord CL. Manual - part 985

Fig. 204: Measuring The Resistance Between PCM Connector Terminals 
C3 & A8 Or A9 

11. Disconnect the shift solenoid harness connector at the transmission housing.  

12. Check for continuity between shift solenoid harness connector terminal No. 3 

and body ground. 

Is there 12-25 ohm ? 

YES: Repair open in the wire between PCM connector terminal C3 
and the shift solenoid harness connector, then go to step 13.  

NO: Check shift solenoid valve E, and check for an open in the shift 
solenoid harness in the transmission (see SHIFT SOLENOID VALVE 
TEST ). Replace shift solenoid valve E and/or shift solenoid harness, 
then go to step 13.  

 

2004 Acura TSX 

2004 AUTOMATIC TRANSMISSIONS Diagnosis - MCTA 5-Speed

  

 

DTC P1730: PROBLEM IN SHIFT CONTROL SYSTEM: 

z

Shift Solenoid Valves A or D Stuck OFF  

z

Shift Solenoid Valve B Stuck ON  

Fig. 205: Checking For Continuity Between Shift Solenoid Harness 
Connector Terminal No. 3 & Body Ground 

13. Clear the DTC with the HDS.  

14. Start the engine, and shift the transmission in 2nd gear in the M position.  

15. Check the OBD STATUS in DTCs MENU for a pass/fail test of code P0986. 

Did the result indicate a pass? 

YES: The problem has been corrected.  

NO: Return to step 1 and recheck.  

 

2004 Acura TSX 

2004 AUTOMATIC TRANSMISSIONS Diagnosis - MCTA 5-Speed

  

 

z

Shift Valves A, B, or D Stuck  

1. Warm up the engine to normal operating temperature (the radiator fan comes on).  

2. Check to be sure that the transmission is filled to the proper level, and check for fluid leaks.  

3. Drain the ATF (see DRAINING & REFILLING ) through a strainer. Inspect the ATF and strainer for 

metal debris or burnt fluid. 

Has the ATF deteriorated? 

YES: Replace ATF (see DRAINING & REFILLING ), and go to step 4.  

NO: Go to step 8 .  

4. Clear the DTC with the HDS.  

5. Test-drive the vehicle in the D position in all five gears at speeds over 12 mph (20 km/h) for more than 20 

seconds, then slow down to a stop.  

6. Retest-drive the vehicle in the D position in all five gears at speeds over 12 mph (20 km/h) for more than 

20 seconds, then slow down to a stop.  

7. Check the OBD STATUS in DTCs MENU for a pass/fail test of code P1730. 

Did the result indicate a fail? 

YES: Go to step 8.  

NO: Intermittent failure, the system is OK at this time. If the tester indicates NOT 
COMPLETE, return to step 5 and recheck.  

8. Clear the DTC with the HDS.  

9. Select SHIFT SOL TEST in MISC. TEST MENU, then carry out A/T SHIFT SOL A test in SHIFT SOL 

TEST MENU with the HDS. 

Is a clicking sound heard? 

YES: Go to step 10.  

NO: Replace shift solenoid valve A (see SHIFT SOLENOID VALVE 
REPLACEMENT ), then go to step 15 .  

10. Select SHIFT SOL TEST in MISC. TEST MENU, then carry out A/T SHIFT SOL B test in SHIFT SOL 

TEST MENU with the HDS. 

Is a clicking sound heard? 

YES: Go to step 11.  

NO: Replace shift solenoid valve B (see SHIFT SOLENOID VALVE 
REPLACEMENT ), then go to step 15 .  

11. Select SHIFT SOL TEST in MISC. TEST MENU, then carry out A/T SHIFT SOL D test in SHIFT SOL 

TEST MENU with the HDS. 

Is a clicking sound heard? 

YES: Go to step 12.  

NO: Replace shift solenoid valve D (see SHIFT SOLENOID VALVE 

NOTE:

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

 

2004 Acura TSX 

2004 AUTOMATIC TRANSMISSIONS Diagnosis - MCTA 5-Speed

  

 

REPLACEMENT ), then go to step 15 . 

12. Test-drive the vehicle in the D position in all five gears at speeds over 12 mph (20 km/h) for more than 20 

seconds, then slow down to a stop.  

13. Retest-drive the vehicle in the D position in all five gears at speeds over 12 mph (20 km/h) for more than 

20 seconds, then slow down to a stop.  

14. Check the OBD STATUS in DTCs MENU for a pass/fail test of code P1730. 

Did the result indicate a fail? 

YES: Repair hydraulic system related with shift valves A, B and D, or replace the 
transmission, then go to step 15.  

NO: Intermittent failure, the system is OK at this time. If the tester indicates NOT 
COMPLETE, return to step 12 and recheck.  

15. Clear the DTC with the HDS.  

16. Test-drive the vehicle in the D position in all five gears at speeds over 12 mph (20 km/h) for more than 20 

seconds, then slow down to a stop.  

17. Retest-drive the vehicle in the D position in all five gears at speeds over 12 mph (20 km/h) for more than 

20 seconds, then slow down to a stop.  

18. Check the OBD STATUS in DTCs MENU for a pass/fail test of code P1730. 

Did the result indicate a pass? 

YES: The problem has been corrected.  

NO: Return to step 1 and recheck.  

DTC P1731: PROBLEM IN SHIFT CONTROL SYSTEM: 

z

Shift Solenoid Valve E Stuck ON  

z

Shift Valve E Stuck  

z

A/T Clutch Pressure Control Solenoid Valve A Stuck OFF  

1. Warm up the engine to normal operating temperature (the radiator fan comes on).  

2. Check to be sure that the transmission is filled to the proper level, and check for fluid leaks.  

3. Drain the ATF through a strainer (see DRAINING & REFILLING ). Inspect the ATF and strainer for 

metal debris or burnt fluid. 

Has the ATF deteriorated? 

YES: Replace ATF (see DRAINING & REFILLING ), and go to step 4.  

NO: Go to step 8 .  

4. Clear the DTC with the HDS.  

5. Test-drive the vehicle in the D position in all five gears at speeds over 12 mph (20 km/h) for more than 20 

seconds, then slow down to a stop.  

6. Retest-drive the vehicle in the D position in all five gears at speeds over 12 mph (20 km/h) for more than 

NOTE:

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

 

2004 Acura TSX 

2004 AUTOMATIC TRANSMISSIONS Diagnosis - MCTA 5-Speed