Technical Question
06-25-2014, 01:53 AM
#1
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C180
Technical Question
After a scan using STAR Diagnostic (Xentry, software) the following fault showed up:
Diagnosis > Control Unit
ESP - Electronic Stability Program (N30/4)
Quote
"5944 There is an internal fault in the control unit "N30/4 (Electronic Stability Program Control Unit/. Stored"
"5001 There is an internal fault in the control unit "N30/4 (Electronic Stability Program Control Unit/. Stored"
"5945 There is an internal fault in the control unit "N30/4 (Electronic Stability Program Control Unit/. Stored"
Unquote
After the the re-flash the the message was "No fault code stored in the fault memory."
Can someone interpret this for me.
Thanks
Diagnosis > Control Unit
ESP - Electronic Stability Program (N30/4)
Quote
"5944 There is an internal fault in the control unit "N30/4 (Electronic Stability Program Control Unit/. Stored"
"5001 There is an internal fault in the control unit "N30/4 (Electronic Stability Program Control Unit/. Stored"
"5945 There is an internal fault in the control unit "N30/4 (Electronic Stability Program Control Unit/. Stored"
Unquote
After the the re-flash the the message was "No fault code stored in the fault memory."
Can someone interpret this for me.
Thanks
Last edited by MBc180_2009; 06-25-2014 at 09:58 AM.
06-25-2014, 12:46 PM
#3
Super Moderator
Please give us some more information as to symptoms etc. Response is only as good as info given.
You had the car scanned ~ why?
It through up ESP module codes which can be due to many things from connections to a Yaw sensor not being plugged in properly.
There was a reflash of what? ECU?
The car is no longer storing codes so everything is OK?
Yes?
You had the car scanned ~ why?
It through up ESP module codes which can be due to many things from connections to a Yaw sensor not being plugged in properly.
There was a reflash of what? ECU?
The car is no longer storing codes so everything is OK?
Yes?
06-25-2014, 09:25 PM
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C180
Please give us some more information as to symptoms etc. Response is only as good as info given.
You had the car scanned ~ why?
I was having the ESP light faulting on the dashboard with power steering disengagement. Then the ESP corrected itself on a slop. Thereafter, the head lights and left/right signals were working in conflicting patterns, intermittently.
It through up ESP module codes which can be due to many things from connections to a Yaw sensor not being plugged in properly.
There was a reflash of what? ECU?
Overwriting or simply deleting the stored fault from the memory has not yet fully normalised the functioning of the car. The signal appear to be working inconsistently. The battery was recently changed due to these inconveniences. But reoccurrence of the issues (signals working inconsistently) has surfaced--again having to delete the ESP fault from the firmware to no avail.....
The car is no longer storing codes so everything is OK? Yes
Yes?
You had the car scanned ~ why?
I was having the ESP light faulting on the dashboard with power steering disengagement. Then the ESP corrected itself on a slop. Thereafter, the head lights and left/right signals were working in conflicting patterns, intermittently.
It through up ESP module codes which can be due to many things from connections to a Yaw sensor not being plugged in properly.
There was a reflash of what? ECU?
Overwriting or simply deleting the stored fault from the memory has not yet fully normalised the functioning of the car. The signal appear to be working inconsistently. The battery was recently changed due to these inconveniences. But reoccurrence of the issues (signals working inconsistently) has surfaced--again having to delete the ESP fault from the firmware to no avail.....
The car is no longer storing codes so everything is OK? Yes
Yes?
My Q was what do those coded numbers means? Do they mean different things? Plz interpret them for me. The dealer say the ESP needs replacement but another service centre strongly differed from the dealer's recommendation.
Last edited by MBc180_2009; 06-26-2014 at 07:24 AM.
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06-26-2014, 04:40 PM
#9
Super Moderator
Unfortunately the code numbers mean what they say. After that you are on your own but with a Star you can run simulations. Without a Star it is trial & error.
The ESP unit is mounted on the face of the ABS Block. There is no sign of ABS trouble which can trigger ESP nonsense. You might well have an ESP module failure.
Check the following.
- ESP harness plug for corrosion or pin damage
- Check that the Yaw sensor is properly seated in the trunk.
- Start the car and turn the steering from lock to lock 5 times to reset the steering angle sensor
- Have battery & alternator voltages checked.
If none of this helps get the dealer to change the ESP module on the condition that if it does not fix the problem you do not pay.
Good luck.
The ESP unit is mounted on the face of the ABS Block. There is no sign of ABS trouble which can trigger ESP nonsense. You might well have an ESP module failure.
Check the following.
- ESP harness plug for corrosion or pin damage
- Check that the Yaw sensor is properly seated in the trunk.
- Start the car and turn the steering from lock to lock 5 times to reset the steering angle sensor
- Have battery & alternator voltages checked.
If none of this helps get the dealer to change the ESP module on the condition that if it does not fix the problem you do not pay.
Good luck.
07-07-2014, 01:11 PM
#12
Super Moderator
These cars are very sensitive to adequate voltage.
A failing battery/alternator can cause many spurious codes.
A failing battery/alternator can cause many spurious codes.
