Holiday 2002 NEPTUNE, Owner'S Manual

Page: 310 / 344

Chassis Information
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
2 0 0 2 N E P T U N E
10 • 310
The electronic control system is programmed to inform the operator of a
problem with the transmission system and automatically take action to protect
the operator, motorhome and transmission. When the TCM detects a Range
inhibit or Shift inhibit condition, the TCM restricts shifting, turns the
CHECK
TRANS light on the instrument panel and registers a diagnostic code.
NOTE: For some problems, diagnostic codes may be regis-
tered without the ECU activating the CHECK TRANS
light. The Allison Transmission authorized service outlet
should be consulted whenever there is a transmission relat-
ed concern. They have the equipment to check for diagnos-
tic codes and to correct problems which arise.
Each time the engine is started the CHECK TRANS will light, then turn
off after a few seconds. This momentary lighting is to show that the status light
circuits are working properly. If the
CHECK TRANS light does not illuminate
during start up, or if the light remains on after start up, the system should be
checked immediately. Continued illumination of the
CHECK TRANS light
during vehicle operation (other than start up) indicates that the TCM has sig-
naled a diagnostic code.
It may be possible to rock the motorhome out if it is stuck in snow, mud or
deep sand. Shift the selector to D (Drive) and apply a steady light throttle.
Never apply full throttle as the wheels may spin and bury the motorhome deep-
er. When the motorhome has moved forward as far it will go, apply and hold
the service brakes. Allow the engine to return to idle before selecting R
(Reverse). Release the brake and apply light throttle until the motorhome has
rocked as far it will go. Again, apply the service brake and allow the engine to
return to idle. Repeat this process if the motorhome has moved a greater dis-
tance. If the process does not free the motorhome, call for towing assistance.
NOTE: Sudden movements or lurching the motorhome
with an open throttle can result in damage to transmission.
Avoid this condition by making shifts only when the throttle
is closed and engine is at normal idle.
Bring the motorhome to a complete stop using the service brakes and hold
the brake pedal down. Allow the engine to come to a low idle (500 to 800
rpm). Apply the parking/emergency brake by pulling up on the knob. When the
parking/emergency brake is set, move the shifter to the
N (Neutral) position.
Release the brake pedal.
NOTE: Chock all the wheels securely if the motorhome is
left unattended.
Parking
Rocking Out
Transmission -
Check Light