394 • SECTION 10 --- CHASSIS INFORMATION
NEPTUNE 2004
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 registered without
the ECU activating the CHECK TRANS light. The Allison
Transmission authorized service outlet should be consulted whenever
there is a transmission related concern. They have the equipment to
check for diagnostic 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 signaled a diagnostic code.
Help the electronic control system oversee the operation of the transmission.
Minor problems can be kept from becoming major problems if you notify an
Allison Transmission distributor or dealer when one of these conditions occur:
1. The shifting feels odd.
2. The transmission leaks fluid.
3. Unusual transmission-related sounds (changes in sound caused by
normal engine thermostatic fan cycling, while climbing a long grade
with a heavy load, have been mistaken for transmission-related
sounds).
4. The
CHECK TRANS
light comes on frequently.
For easier inspection, the transmission should be kept clean. Make periodic
checks for loose bolts and leaking fluid lines. Check the condition of the electrical
harnesses regularly. Check the engine cooling system occasionally for evidence of
transmission fluid which would indicate a faulty oil cooler. Report any abnormal
condition to the Allison dealer.
Transmission Check
Light
Preventive
Measures
Periodic
Inspections
Summary of Contents for Neptune 2004
Page 12: ......
Page 16: ......
Page 36: ......
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Page 84: ...84 SECTION 2 DRIVING SAFETY NEPTUNE 2004 Weight Label...
Page 90: ...90 SECTION 2 DRIVING SAFETY NEPTUNE 2004 020254...
Page 92: ...92 SECTION 2 DRIVING SAFETY NEPTUNE 2004 020255B...
Page 93: ...DRIVING SAFETY SECTION 2 93 NEPTUNE 2004 2 020263 Weight Record Sheet...
Page 94: ...94 SECTION 2 DRIVING SAFETY NEPTUNE 2004 VIEWS Front Rear 010726c 010725...
Page 95: ...DRIVING SAFETY SECTION 2 95 NEPTUNE 2004 2 Roadside Curbside 010723d 010724e...
Page 106: ...106 SECTION 2 DRIVING SAFETY NEPTUNE 2004 NOTES...
Page 108: ......
Page 151: ...EXTERIOR INTERIOR CARE SECTION 3 151 NEPTUNE 2004 3 NOTES...
Page 152: ...152 SECTION 3 EXTERIOR INTERIOR CARE NEPTUNE 2004 NOTES...
Page 154: ......
Page 191: ...4 APPLIANCES SECTION 4 191 NEPTUNE 2004 NOTES...
Page 192: ...192 SECTION 4 APPLIANCES NEPTUNE 2004 NOTES...
Page 194: ......
Page 231: ...EQUIPMENT SECTION 5 231 NEPTUNE 2004 5 NOTES...
Page 232: ...232 SECTION 5 EQUIPMENT NEPTUNE 2004 NOTES...
Page 234: ......
Page 255: ...WATER SYSTEMS SECTION 6 255 NEPTUNE 2004 NOTES 6...
Page 256: ...256 SECTION 6 WATER SYSTEMS NEPTUNE 2004 NOTES...
Page 258: ......
Page 276: ...276 SECTION 7 LP GAS SYSTEMS NEPTUNE 2004 NOTES...
Page 278: ......
Page 313: ...ELECTRICAL SYSTEMS HOUSE SECTION 8 313 NEPTUNE 2004 NOTES 8...
Page 314: ...314 SECTION 8 ELECTRICAL SYSTEMS HOUSE NEPTUNE 2004 NOTES...
Page 316: ......
Page 346: ...346 SECTION 9 ELECTRICAL SYSTEMS CHASSIS NEPTUNE 2004 NOTES...
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Page 411: ...CHASSIS INFORMATION SECTION 10 411 NEPTUNE 2004 10 METRIC U S CONVERSION CHART...
Page 413: ...CHASSIS INFORMATION SECTION 10 413 NEPTUNE 2004 10...
Page 414: ...414 SECTION 10 CHASSIS INFORMATION NEPTUNE 2004...
Page 415: ...CHASSIS INFORMATION SECTION 10 415 NEPTUNE 2004 10...