![]() On NAS market vehicles from 03 model year, the ZF 4HP24 transmission unit is introduced for use with the 4.6 litre V8 engine. The gearbox features a pressure lubrication system and is cooled by pumping the lubricant through an oil cooler. ![]() ![]() The EAT ECU operates warning lamps in the instrument pack to indicate the control mode and system status. Selections on the selector lever assembly are transmitted to the gearbox by a selector cable. A gear position switch on the gearbox transmits the gear selection to an Electronic Automatic Transmission (EAT) ECU, which outputs the appropriate control signals to an electro-hydraulic valve block in the gearbox. A mode switch enables the driver to change the control mode of the EAT ECU. General The automatic gearbox is a four speed unit with electronic control of gear selection, shift quality and torque converter lock-up.
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