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Mercedes Benz Automatic transmission problem
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drheart Offline
#1 Posted : Wednesday, May 12, 2010 2:14:41 PM

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its a 2000 model E420 MB,the scan toool gives these codes after testing EGS ECU :
024 CAN: ACCLR PEDAL VALUE OR FRONT RIGHT RPM SIGNAL
055 GEAR COMP. NEGATIVE OR SELECTED GEAR NOT REACHED
119 CAN: REAR LEFT RPM SIGNAL FROM THE TRACTION SYSTEM NOT PLAUSIBLE
120 CAN: ACCLE PEDAL VALUE / FRONT RIGHT RPM SIGNAL

but INCOMPLETE GEAR RATIO code was stored on the engine section ECU.

please help
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DiagPro Offline
#2 Posted : Friday, May 14, 2010 9:24:25 PM

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i see you have three of four erros related to can bus network
i think in such case this car has something confusing the can bus, you must check the can bus network espcially the wires
if everything is fine, use your scanner and test the EZS (for newer cars you must test the CGW) sometimes it can be the reason
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techscan Offline
#3 Posted : Saturday, May 15, 2010 12:28:26 PM

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for the EGS error code 055 you have to check ATF oil level harness , ATF oil filter is not installed , Shift pressure regulating soleniod valve ( Y3/6y2) and Shift control valve .
hope that will help
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