352 • SECTION 10 — CHASSIS INFORMATION
DYNASTY 2006
Diagnostic Codes:
The shift selector can be used to display transmission malfunctions as numerical codes. Each code is a two-digit
main code and a two-digit sub code. These codes will fall in two classes: active and inactive. Active codes are
codes currently affecting the ECU process and transmission operation. Inactive codes are retained in memory but
may not affect the ECU process or transmission operation. A service technician will activate Diagnostic mode
or hook an electronic display (Pro-Link) to the data plug to retrieve diagnostic codes. A maximum of fi ve codes,
D1 to D5, may be listed at one time. The highest priority code will be listed in D1. The Mode button will enable
selection of sequential codes.
To Display Diagnostic Codes:
• Stop the motorhome at a safe location.
• Apply the parking brake.
• Simultaneously press the up and down arrows once to enter oil level display mode. Press the up and down
arrows again to enter diagnostic mode.
• The codes display one digit at a time.
• Press the mode button to scroll through the codes.
• Record all diagnostic codes that are displayed. The codes then can be used by an Allison Service Center
for evaluation and repair.
• Inactive codes can be cleared by holding the Mode button for approximately three seconds. Some codes
are self-clearing while others will require service or ignition on/off cycles to clear.
Periodic Inspections
The Allison MH Series requires very little maintenance. Careful attention to the fl uid level, electrical
connections and hydraulic hoses is very important.
The transmission should be kept clean for easy inspection. Make periodic checks for loose bolts and leaking
fl uid. Check the condition of the electrical harnesses regularly. Check the engine cooling system occasionally for
evidence of transmission fl uid that would indicate a faulty oil cooler. Report any abnormal condition to an Allison
Service Center.
Prevent Major Problems:
Help the WTEC III control system oversee the operation of the transmission. Minor problems can be kept from
becoming major problems if an Allison Transmission Service center is notifi ed when one of these conditions occur:
1. Shifting feels odd.
2. Transmission leaks fl uid.
3. Unusual transmission-related sounds (sound made by normal engine thermostatic fan cycling when
climbing a long grade with a heavy load are often mistaken for transmission-related sounds).
4. The Check Trans indicator comes on frequently.
Содержание DYNASTY 2006
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Страница 18: ...18 SECTION 1 GENERAL INFORMATION DYNASTY 2006 NOTES...
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Страница 61: ...DYNASTY 2006 DRIVING SAFETY SECTION 2 61 Weight Label 100179d...
Страница 66: ...66 SECTION 2 DRIVING SAFETY DYNASTY 2006 Weighing Procedure Worksheet Example Worksheet 020255p...
Страница 67: ...DYNASTY 2006 DRIVING SAFETY SECTION 2 67 Actual Worksheet 020255c...
Страница 68: ...68 SECTION 2 DRIVING SAFETY DYNASTY 2006 Weight Record Sheet 020262...
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Страница 118: ...118 SECTION 3 EXTERIOR INTERIOR CARE DYNASTY 2006 NOTES...
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Страница 377: ...Dynasty 2006 INDEX...
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