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VA
flexible adaptation to different vehicle and engine
variants.
EMERGENCY RUNNING FUNCTION
In order to ensure a safe driving state and to pre-
vent damage to the automatic transmission, the TCM
control module switches to limp-home mode in the
event of critical faults. A diagnostic trouble code
(DTC) assigned to the fault is stored in memory. All
solenoid and regulating valves are thus de-energized.
The net effect is:
• The last engaged gear remains engaged.
• The modulating pressure and shift pressures
rise to the maximum levels.
• The torque converter lockup clutch is deacti-
vated.
In order to preserve the operability of the vehicle
to some extent, the hydraulic control can be used to
engage 2nd gear or reverse using the following pro-
cedure:
GEAR
RATIO
1
3.59
2
2.19
3
1.41
4
1.00
5
0.83
N
N/A
R
3.16
R - Limp
1.93
In
AUTOMATIC TRANSMISSION NAG1 - SERVICE INFORMATION 21 - 5
CLUTCH APPLICATION
B1
B2
B3
X*
X
X
X
X
X
X*
* = The shift components required during coast.
• Stop the vehicle.
• Move selector lever to "P".
• Switch off engine.
• Wait at least 10 seconds.
• Start engine.
• Move selector lever to D: 2nd gear.
• Move selector lever to R: Reverse gear.
The limp-home function remains active until the
DTC is rectified or the stored DTC is erased with the
appropriate scan tool. Sporadic faults can be reset
via ignition OFF/ON.
CLUTCH APPLICATION
Refer to CLUTCH APPLICATION for which shift
elements are applied in each gear position.
K1
K2
X
X
X
X
X
X
K3
F1
X*
X
X*
X
X
X
X
X
X*
X
X
X
X
F2
X
X
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