I have a slk 1999 but its stuck in 2nd gear ?? i guess this is safe mode lipm mode,,[:@]I have read the fault codes and can not find the problems??

Fault codes as follows

P0758
P0763
P0743
P0753

I have checked the gear box gasket no leaks checked fuses and relpaced kick down solenoid
All so i have a fault code with abs that is C1401 feedback valve stuck or no connection??
Please help i have tryed every think even changed the asr module but nope no
diffrence + i ve chnaged the speed sencors front left and right helllllllllpppppppppppp
need the MB doctor please

 

you mean kickdown switch? your's got no kickdown solenoid. it is 722.605 transmission.

the ABS valve stuck...the fuse was busted?

what was the corresponding of those P faults that you got?

got power supply on the transmission control module? two connectors on it, 1 connector got 3 wires and 1 wire must have power (maybe red or red/black).

 

you're in gibraltar?

 

Hi sleepwalker many thanks for getting back to me i hoped you would. The car runs fine
but only in second gear and reverse it slams into get tho with a jult , What is the location
of the valve ?? the abs pump one?? C1401 fault i have checked th K40 relays and all the
fuses can you give me location of the wires i need to test as there are so many. My
vin number is WDB1704472F116347 What els can it be ive checked the ground wire on
the abs and its been cleaned and tightend,,

The codes
P0758
P0763
P0743
P0753

Are A & B + clutch codes ,solenid codes from the transsmision box the car only has 27 k..

Regards
SLKLOVER [&:]

 

then you better fix the transmission problem first.

no power to the valves means that the ETC control module doesn't supply power to the valves. all switching are done by negative signal.

so check that power supply to the ETC first. you cannot drive the car on 2nd gear all the time.

just go to the ETC control module, switch on ignition, check power to input, then the output connector.

the output connector shoould have 12 volts too and not 5 volts!

or you can just directly check the input power to the electrohydraulic valves by turning on the ignition, go under the car and unplug the transmission connector, and check if there is 1 live (12 volts) feed on it.

 

Hi sleep walker do you want me to test the Trans module located in the passenger footwell??
look for 3 wires and one of them should be black and red or red correct? 12 v ..Where does
it get its power from?? The enging module next to the ecu????
Regards

 

yes.
tomorrow i will send you the wiring diagram because it was in my office.

 

Ok thats great im going to have a look and see what i can find today, Will post results
i have opend the tranny control unit and can not see anythink wrong there no burns
or bad connections so im going to check the fuses again one by one and i will change
my ASR unit to see if i can clear the ABS fault code , I have a spare lol.../
Regards

 

Ok update **** hot, I read the codes out of the tranny and it come up with loads i cleard them and then read
the ME and cleard them and bang the car works and changes gear got home and read the codes again.

No fault codes in the ME or in The tranny job done !!!

But i still have the ASB lights and BAS light with the CAN error C1025 but i know most do this
and its nothing to worry about , But the C1401 feedback on the abs is now the problem
where is the feedback valuve located for this i have checked MB wis and can not find the
code or the feedback valve any ideas, If i floor it ,It goes into safe mode with little exceleration
so close now ,,, WHAT IS THIS FAULT CODE C1401 please help me as i have no idea
checked the fuses and every think els????? Come on sleepwalker your the tech head of
the board lets get this job done,,,,,

 

you can get more explanation from WIS on group 54.

or you can "search keywords" [fault code].

i left my notebook in my office so i cannot check now.