SL55/63/65/R230 AMG: ESP malfunction and limp mode as soon as I hit WOT
Thread Starter
MBWorld Fanatic!
Joined: Dec 2006
Posts: 1,308
Likes: 62
From: Bethesda, MD
2000 SL500
ESP malfunction and limp mode as soon as I hit WOT
Good Evening everyone,
I have been noticing the ESP malfunction and limp mode as soon as I hit WOT on my 2007 SL55 with 92k miles. Will not get out of limp mode until I turn off the car and restart, problem goes away right away and ESP is working normally.
I used my iCarsoft (I know I will eventually get SDS) and got the following errors:
-B37 (accelerator pedal sensor): Signal 1/short circuit to positive/potentiometer above maximum value (P0123)
-The CAN data from control module Motor electronics is invalid or unreasonable (Accelerator pedal position)
-ESP Electronic Stability Program Control
At first thought steering angle sensor(before pulling codes) did the reset and no luck. Next, I did the TB reset and still same thing. Finally after pulling the codes, I took the pedal off and sprayed electronic cleaner on the sensor on the pedal and its connector. Waited for everything to dry and still got the same ESP and limp mode as soon as I hit WOT.
I read the part number on the pedal to be: 2303000604
I was going to order a new pedal, just wanted to check in with the forums to see if anyone else has any other advice? While I am at it, I am going to replace the brake light switch as well...I have had these go bad on almost all my older MBZ vehicles.
Thank you all for your time!
I have been noticing the ESP malfunction and limp mode as soon as I hit WOT on my 2007 SL55 with 92k miles. Will not get out of limp mode until I turn off the car and restart, problem goes away right away and ESP is working normally.
I used my iCarsoft (I know I will eventually get SDS) and got the following errors:
-B37 (accelerator pedal sensor): Signal 1/short circuit to positive/potentiometer above maximum value (P0123)
-The CAN data from control module Motor electronics is invalid or unreasonable (Accelerator pedal position)
-ESP Electronic Stability Program Control
At first thought steering angle sensor(before pulling codes) did the reset and no luck. Next, I did the TB reset and still same thing. Finally after pulling the codes, I took the pedal off and sprayed electronic cleaner on the sensor on the pedal and its connector. Waited for everything to dry and still got the same ESP and limp mode as soon as I hit WOT.
I read the part number on the pedal to be: 2303000604
I was going to order a new pedal, just wanted to check in with the forums to see if anyone else has any other advice? While I am at it, I am going to replace the brake light switch as well...I have had these go bad on almost all my older MBZ vehicles.
Thank you all for your time!
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Thread Starter
MBWorld Fanatic!
Joined: Dec 2006
Posts: 1,308
Likes: 62
From: Bethesda, MD
2000 SL500
