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i-SHIFT System Symptom Troubleshooting - No transmission power to wheels

No Transmission Power to Wheels
  1. Start the engine.
  1. Press the brake pedal, and change the shift lever to the A/M position.
  1. Check the BRAKE SWITCH in the DATA LIST with the HDS.
Is the brake switch OK?
YES -
Go to Step 4 .
NO -
  1. Check that the gear position indicator is displayed in 1st gear while in Auto mode.
    NOTE: When all the doors are closed, the gear position indicator should not flash. If the gear position indicator flashes, go to Step 5 .
Is the gear position displayed?
YES -
Go to Step 8 .
NO -
Go to Step 5 .
  1. Check for these conditions:
    • Leaks at hoses and line joints and connections, and repair if necessary.
    • Clutch lines for damage and leaks. Also check for bent clutch lines.
    • Reservoir level.
Are they OK?
YES -
Go to Step 6 .
NO -
Repair the problems, then go through Step 1 to 4 and make sure it is normal.■
  1. Check that the gear position indicator is displayed in 1st gear while in Auto mode.
Is the 1st gear position displayed?
YES -
Go to Step 9 .
NO -
Update the TCM if it does not have the latest software, or substitute a known-good TCM, then recheck. If the symptom/indication goes away with a known-good TCM, replace the original TCM.
  1. Read out error memory and remove errors if present.
  1. Check the clutch, concentric slave cylinder.
It is OK?
YES -
Go to Step 10 .
NO -
Repair the problems, then go through Step 1 to 4 and make sure it is normal.■
  1. Do the ENGAGE GEARS in the FUNCTIONAL TEST MENU with the HDS, and try to shift the position that cannot be shifted.
Does the actuator move normally?
YES -
Update the TCM if it does not have the latest software, or substitute a known-good TCM, then recheck. If the symptom/indication goes away with a known-good TCM, replace the original TCM.
NO -
Repair the transmission internal failure, then go through Step 1 to 4 and make sure it is normal.■