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2004
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Z4 (E85) L6-3.0L (M54)
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Repair and Diagnosis
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Powertrain Management
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Transmission Control Systems
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Description and Operation
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Transmission Control (EGS Transmission Control GS20)
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Back Up Light
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Reversing Light (EGS Transmission GS8604)
Reversing Light (EGS Transmission GS8604)
Reversing Light
The reversing light function is evaluated via the selector lever switch. When selector lever position R is selected, the EGS control unit switches ground to the reversing light relay.