Allison Transmission 3000 Mechanic's Tips page 45

SIX-SPEED, LEFT-HAND
LEVER SELECTOR
R
MODE
N
D
NOTE: Number displayed is highest forward range available in selected position.
Visually check to confirm range selected. If display is flashing – shift is inhibited.
When conditions causing the code exist, the code is logged in memory. The code
stays in memory until it is manually cleared or cycled out.
When intermittently occurring codes exist, inspect, test, and correct the following
items:
• Dirty, damaged, or corroded harness connectors and terminals.
• Terminals not fully seated in connectors.
• Damaged harnesses (due to poor routing, chafing, excessive heat, tight
bends, etc.).
• Improperly mounted electronic control components.
• Poor connector seals (where applicable).
• Exposed harness wires.
• EMI generating components and accessories.
• Loose ground connections.
HOLD OVERRIDE BUTTON
MODE INDICATOR
1
MODE
2
MODE BUTTON
3
4
5
D
N
DIGITAL DISPLAY
R
DISPLAY MODE/
DIAGNOSTIC BUTTON
DIGITAL DISPLAY
MODE ID
MODE
INDICATOR (LED)
Push simultaneously
to enter diagnostic
mode and fluid level
check (optional)
PUSHBUTTON
SELECTOR
Figure 2–4. Typical Shift Selectors
(LED)
MODE ID
SIX-SPEED, RIGHT-HAND
LEVER SELECTOR
1
D
2
N
3
R
D
N
R
STRIP PUSHBUTTON
SHIFT SELECTORS
44
R
MODE
N
D
5
4
3
2
1
R
D N
1 2 3 D N R
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