DTC Troubleshooting: P0756 (71-3)

DTC P0756:
 Shift Solenoid Valve B Stuck OFF
  1. Warm up the engine to normal operating temperature (the radiator fan comes on).
  1. Make sure that the transmission is filled to the proper level, and check for fluid leaks.
  1. Drain the ATF through a strainer. Inspect the strainer for metal debris or excessive clutch material.
Does the strainer contain metal debris or excessive clutch material?
YES -
Replace the transmission.■
NO -
  1. Clear the DTC with the HDS.
  1. Test-drive the vehicle in the D position in all five gears at speeds over 20 km/h (12 mph) for more than 20 seconds, then slow down to a stop.
  1. Retest-drive the vehicle in the D position in all five gears at speeds over 20 km/h (12 mph) for more than 20 seconds, then slow down to a stop.
  1. Monitor the OBD status for P0756 in the DTCs/Freeze Data in A/T Mode Menu for a pass/fail.
Does 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.■
  1. Clear the DTC with the HDS.
  1. Choose Shift Solenoid B in Miscellaneous Test Menu, and check that the shift solenoid valve B operates with the HDS.
Is a clicking sound heard?
YES -
Go to Step 10 .
NO -
  1. Test-drive the vehicle in the D position in all five gears at speeds over 20 km/h (12 mph) for more than 20 seconds, then slow down to a stop.
  1. Retest-drive the vehicle in the D position in all five gears at speeds over 20 km/h (12 mph) for more than 20 seconds, then slow down to a stop.
  1. Monitor the OBD status for P0756 in the DTCs/Freeze Data in A/T Mode Menu for a pass/fail.
Does the result indicate a fail?
YES -
Repair shift valve B, or replace the transmission, then go to Step 13 .
NO -
Intermittent failure, the system is OK at this time. If the tester indicates NOT COMPLETE, return to Step 10 and recheck.■
  1. Clear the DTC with the HDS.
  1. Test-drive the vehicle in the D position in all five gears at speeds over 20 km/h (12 mph) for more than 20 seconds, then slow down to a stop.
  1. Retest-drive the vehicle in the D position in all five gears at speeds over 20 km/h (12 mph) for more than 20 seconds, then slow down to a stop.
  1. Monitor the OBD status for P0756 in the DTCs/Freeze Data in A/T Mode Menu for a pass/fail.
Does the result indicate a pass?
YES -
The problem has been corrected.■
NO -
Return to Step 8 and recheck.■