flexible a da pt ation to differen t vehicle and en gine
variants .
EMERGENCY RUNNING FUNCTION
In or der to en su re a safe driving stat e and t o pre-
vent damage to t he autom atic transmission, t he TCM
control module switches to limp-home mode in the
event of cr itical fa ults. A diagnostic trouble code
(DTC) assigned to the fault is stor ed i n memory. All
solenoid an d regulating va lves ar e th us de-en ergized.
The n et effect is:
• Th e la st en ga ged gea r r em a in s en ga ged.
• Th e modu lating pressur e and shift pressur es
rise to the maximum levels.
• Th e torqu e converter lockup clutch is dea cti-
vate d .
In order t o preser ve th e operability of th e vehicle
to some extent, the h ydraulic con trol can be used to
enga ge 2nd gea r or reverse using the following pro-
cedure:
• Stop the vehicle.
• Move selector lever to “P”.
• Switch off en gin e.
• Wait at least 10 secon ds.
• Star t engin e.
• Move selector lever to D: 2nd gear.
• Move selector lever to R: Reverse gear.
The limp-home fun ction r emains active un til th e
DTC is rect ified or th e stored DTC is erased wit h the
appropriate scan t ool. Sporadic faults can be r eset
via ignition OFF/ON.
CLUTCH APPLICATION
Refer t o CLUTCH APPLICATION for which shift
elements are applied in ea ch gear position .
CLU T CH APPLI CAT I ON
GEAR RATIO B1 B2 B3 K1 K2 K3 F1 F2
1 3.59 X* X X* X X
2 2.19 X X X* X
3 1.41 X X X
4 1.00 X X X
5 0.83 X X X X*
N N/A X X
R 3.16 X* X X X
R - Limp
In
1.93 X X X
* = The shift components required during coast.
VA AUTOMATIC TRANSMISSION NAG1 - SERVICE INFORMATION 21 - 5
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