Fault code C1142

2001 MERCEDES BENZ ML320
198,840 MILES • 3.2L • 6 CYL • 4WD • AUTOMATIC
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MB-POWER
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When we start engine and after seven minutes, three lights comes on (see attached)
then gear change to R or D strongly!
Also, if we drive the car , transmission will not change (stuck in one gear only)
but if we turn engine off and on again every thing will be fine for the next seven minutes.
After scanned we found following code :
C1142 : B24/2 (ESP LATERAL ACCELERATION SENSOR (LAS)
Note : check engine light do not appear at any time (I think it is removed or canceled).
Note two : ABS and speed sensors , ABS connector (all) has been removed and cleaned. All relays and fuses checked.
Any advice please.
Thanks
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Nov 19, 2017 at 11:54 PM
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KHLOW2008
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The ESP Lateral Acceleration Sensor is most likely faulty and needs to be replaced. I am not sure of the exact location for your vehicle but should be mounted in the trunk behind the rear seat under a plastic panel.
Nov 20, 2017 at 1:03 AM
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MB-POWER
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I think it is near gear shift.
Any advice about check engine light ? why it is not there ? Does that mean there are a fault or problem with the ECU it self ?
Regards
Nov 20, 2017 at 3:02 AM
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KHLOW2008
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Does the check engine light come on when ignition is first turned to "on"?
If it does not come on then, it could be a fault with the bulb. Are there any fault codes for the engine? If not, it would not turn on when other systems are faulty. Only the later versions of vehicle which uses can-bus system would trigger the MIL if other systems are faulty.
By the way, yes, the control unit could be under the console.
Nov 20, 2017 at 5:26 AM
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MB-POWER
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Hi,
How we can test The ESP lateral acceleration sensor because we cannot find another one (used or new) in my country?
Note :
if we requested one throw eBay , it is will take more than a month to receive it.
Thanks
Nov 22, 2017 at 1:32 AM
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KHLOW2008
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I do not have any information for testing the sensor and now I am not able to access our database, which might not have the testing procedure too. so I am afraid I am not able to help you on this.
Nov 22, 2017 at 7:32 AM
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MB-POWER
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Thank you and best wishes.
Nov 23, 2017 at 12:44 AM
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KHLOW2008
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You are welcome and good luck to your undertakings.
Nov 23, 2017 at 6:45 AM