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MODEL 330 OPERATOR'S MANUAL - Peterbilt Motors Company

MODEL 330 OPERATOR'S MANUAL - Peterbilt Motors Company

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Operating Instructions<br />

Operating the Transmission<br />

Vehicles equipped with the MD transmissions have various<br />

diagnostic features. They include a “DON'T SHIFT” light, plus<br />

diagnostic codes that appear in the digital display on the shift<br />

control unit, audible alarms that sound, and connections for<br />

hooking up a data reader (for service only).<br />

The “DON'T SHIFT” light (located on the dash) will come ON<br />

when the engine is first started, then go OFF after a few seconds.<br />

The transmission is automatically controlled by its<br />

Electronic Control Unit (ECU); therefore, if the “DON'T<br />

SHIFT” light comes ON during operation, the ECU has<br />

placed automatic controls on the transmission—canceling or<br />

ignoring your selections. Please see the transmission Operator’s<br />

Manual for further details.<br />

01916<br />

MD Automatic Transmission - Electronic Shift Selector<br />

Model <strong>330</strong> PB1318 3/01 – 69 –

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