CONDITION POSSIBLE CAUSES CORRECTION
HARD 3-2 DOWNSHIFT
WHEN DECELERATION
EVEN AFTER READAP-
TION
1. K3 Idles. 1. Install TCM And/Or Electro-
hydraulic Control Unit.
NO RESP. DELAYED UP-
SHIFT, NO DTC
1. Different Tire Sizes Are Mounted
On The Front Axle.
1. Mount Uniform Tire Sizes
On The Front Axle.
NO UPSHIFT 3-4, 4-5 AF-
TER FAST OFF (ACCEL-
ERATOR)
1. Upshift Prevention To Realize Dy-
namical Drivestyle.
1. Instruct Customer.
NO UPSHIFT OF 1ST
GEAR BELOW 5000 RPM
1. Gear Recognition Switch. 1. Replace Gear Recognition
Switch.
NO UPSHIFT INTO 5TH
GEAR WHEN FULL
THROTTLE OR KICK
DOWN ACTIVATION
1. The Upshift 4-5 At Full Throttle or
Kick Down Never Occurs Until
Reaching Cut Off Speed. Under
These Conditions, The High Pow-
ered Vehicle Will Never Shift Into
5th Gear Below 250 km/h.
1. Instruct Customer.
NO KICK DOWN SHIFT-
ING
1. Accelerator Pedal Value < 95%. 1. Check Engine Control. Ad-
just As Necessary.
Engine Turns Up While 2-3
Upshift and/or Hard 3-2
Downshift
1. Oil Level Too Low. 1. Check Oil Level. Add if Nec-
essary.
2. Oil Filter Not Installed. 2. Install Oil Filter.
3. Free Wheeling Clutch F2 Defec-
tive.
3. Replace Free Wheeling
Clutch F2, Hollow Shaft, and
Rear Sun Gear/Inner Disc Car-
rier K3.
GRABBING 2-3 COAST-
ING UPSHIFT AND/OR
BRAKE DOWNSHIFT
1. Oil Level Too Low. 1. Check Oil Level. Add if Nec-
essary.
2. Oil Filter Not Installed. 2. Install Oil Filter.
3. Control shift or Command Valve
Blocked.
3. Check Each Slide Valve For
Base Position and Ease Of
Movement, Remove Particle.
4. K3 Disc Burnt, Hot Spots or
Rubbed Down.
4. Replace Inner and Outer
Disc Carrier K3 And Control
Valve.
DELAYED ENGAGEMENT,
NO TRANSFER OF POW-
ER IN R AND/OR D, ALSO
AT TIMES
1. Oil Level Too Low. 1. Check Oil Level. Add if Nec-
essary.
2. Recognition Switch - Selector Le-
ver Position.
2. Replace Recognition Switch
Only When Intermediate Posi-
tion or Fault is Indicated.
3. Oil Filter Not Installed. 3. Install Oil Filter.
4. AEV, Delayed Pressure Build Up
On Piston B2/B3.
4. Install New Shifting Proce-
dure (TCM, electrohydraulic
control unit or repair set).
5. Wrong Combination TCM/Electro-
hydraulic Control Unit.
5. Check Combination TCM/
Electrohydraulic Control Unit.
Replace TCM Resp. Electrohy-
draulic Control Unit, if neces-
sary.
VA AUTOMATIC TRANSMISSION NAG1 - SERVICE INFORMATION 21 - 41
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