LI54.18-P-067550

ESP, BAS, PRE-SAFE - Fault message in instrument cluster
Topic number
LI54.18-P-067550
Version
7
Function group
54.18 - Cable harnesses
Date
5/27/22
Validity
Model 213 and 238
Reason for change
Model series 257 removed (not affected)
Complaint
ESP®, BAS, PRE-SAFE®, HOLD function, Hill-Start Assist and ESP® trailer stabilization are unavailable. Also the
adaptive brake lights, Adaptive Brake Assist and/or ATTENTION ASSIST may be unavailable. The brake system continues to operate with normal effectiveness. The support functions listed may be unavailable, but are available again
after an ignition off/on cycle.
One or more of the faults listed under 'Control unit/fault code' for the accelerator pedal (B37) is logged in the PTCU
control unit (N127). Consequential faults may have been logged in the ESP control unit.
Cause
The fault entry may have been caused by resistance at contacts.
Remedy
The remedy refers only to the model series listed and is not compatible with other published TIPS documents for other
model series.
If all the test steps stored in XENTRY Diagnosis have been performed and no component faults were found, the following work must be carried out:
- Replace the connector/ feed line to the accelerator pedal sensor (B37) using the wiring harness repair kit (see parts
table).
Please ensure that the twisted lines are untwisted as little as possible.
Please do not replace any other components (e.g. accelerator pedal sensor).
Reoccurrence of the problem:
If the fault occurs again, or if this is a reoccurrence of the same problem, please make sure that the line connectors
between the repair wiring harness and the interior wiring harness are fitted correctly and that the solder has dispersed evenly. In case of doubt, please repeat the repair. If the problem reoccurs after the second repair attempt, please
create a TIPS case with informative photos of all line connectors.
Information on alternative to repair wiring harness:
If there should be any supply bottlenecks with regard to the repair wiring harness, then the contact sockets on the accelerator pedal sensor can be replaced as an alternative.
WIS-References
Document number
27.05.2022 17:52:03
© Copyright Mercedes-Benz AG
Title
Note
RUTHERE
Page 1 / 3
AR00.19-P-0100A
Wiring harness general repair methods
AR00.19-P-0120A
Remove contacts from connectors,
couplings
WS00.19-P-0002B
220 589 02 99 00 Wiring harness repair kit
WS00.19-P-0006B
220 589 04 99 00 Wiring harness repair kit, supplement for passenger
cars
Symptoms
Power generation > Engine management > Indicator lamp > Engine diagnosis > lit
Chassis/suspension > Brake system > Brakes/traction regulation system > Brake assist system BAS > Display message > Brake assist - not available
Chassis/suspension > Brake system > Brakes/traction regulation system > Brake assist system BAS > Indicator lamp
> Goes on
Chassis/suspension > Brake system > Brakes/traction regulation system > Starting-off aid > Malfunction
Chassis/suspension > Brake system > Brakes/traction regulation system > Electronic Stability Program (ESP) > Display message
Communication/information > Assistance and warning systems > Brake Assist > Malfunction
Parts
Part number
ES1 ES2 Designation
Quantity Note
EPC
A2135401091
Accelerator pedal sensor
wiring harness repair
1
X
A0009829510
Cable connector
6
X
W220589019925
Release tool MLK 1.2
1
Alternative: Release tool MLK 1.2
for removing the old contact sockets
from the plug to the accelerator pedal
sensor B37.
X
A0215451726
Contact socket MCP 1.2
6
Alternative: New contact socket on
plug for accelerator pedal sensor
B37.
X
A0005456880
Single-wire seal
6
Alternative
X
W220589049910
Crimping set MCP 1.2 ELA
1
Alternative
X
Control unit/fault code
Control unit
Fault text
N30/4 - Electronic stability program (ESP®)
U040181 - Implausible data were received from control
unit 'combustion engine'. Incorrect data were received.
U0416FA - Implausible data were received from control
unit 'Traction system'. _
U0401EC - Implausible data were received from control
unit 'combustion engine'. _
U0401FA - Implausible data were received from control
unit 'combustion engine'. _
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© Copyright Mercedes-Benz AG
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U0401FC - Implausible data were received from control
unit 'combustion engine'. _
N30/4 - Electronic stability program (ESP®)
U040181 - Implausible data were received from control
unit 'combustion engine'. Incorrect data were received.
U0416FA - Implausible data were received from control
unit 'Traction system'. _
U0401EC - Implausible data were received from control
unit 'combustion engine'. _
U0401FA - Implausible data were received from control
unit 'combustion engine'. _
U0401FC - Implausible data were received from control
unit 'combustion engine'. _
N30/4 - Electronic stability program (ESP®)
U040181 - Implausible data were received from control
unit 'combustion engine'. Incorrect data were received.
U0416FA - Implausible data were received from control
unit 'Traction system'. _
U0401EC - Implausible data were received from control
unit 'combustion engine'. _
U0401FA - Implausible data were received from control
unit 'combustion engine'. _
U0401FC - Implausible data were received from control
unit 'combustion engine'. _
N3/10 - Motor electronics 'MED40' for combustion engine P2138F1 - The values from the position sensors of the
'M274' (ME)
accelerator pedal are implausible relative to each other. _
N3/10 - Motor electronics 'MED40' for combustion engine P2138F1 - The values from the position sensors of the
'M274' (ME)
accelerator pedal are implausible relative to each other. _
N3/10 - Motor electronics 'MED40' for combustion engine P2138F1 - The values from the position sensors of the
'M274' (ME)
accelerator pedal are implausible relative to each other. _
N127 - Control unit 'Powertrain' (PTCU)
P213800 - The values from the position sensors of the accelerator pedal are implausible relative to each other. _
N127 - Control unit 'Powertrain' (PTCU)
P213800 - The values from the position sensors of the accelerator pedal are implausible relative to each other. _
N127 - Control unit 'Powertrain' (PTCU)
P213800 - The values from the position sensors of the accelerator pedal are implausible relative to each other. _
B37n1 - Haptic accelerator pedal module (HFPM)
U044229 - Implausible data were received from control
unit 'Drivetrain'. There is an invalid signal.
B37n1 - Haptic accelerator pedal module (HFPM)
U044229 - Implausible data were received from control
unit 'Drivetrain'. There is an invalid signal.
Operation numbers/damage codes
Op. no.
Operation text
27.05.2022 17:52:03
© Copyright Mercedes-Benz AG
Time
RUTHERE
Damage
code
Note
5920274
Connector/line for accelerator pedal
sensor
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