NHTSA ID Number: 10167511
Manufacturer Communication Number: LI54.18-P-057927
TSB/Document Date: 2019-11-12
Summary
Engine diagnosis warning lamp is active. One or more of the faults listed under 'Control unit / Fault code' relating to the throttle valve actuator (M16/6) and/or oxygen sensor (G3/1 and/or G3/2) are stored in the engine control unit.
Engine diagnosis warning lamp is active; throttle valve actuator fault and/or oxygen sensor fault stored
Topic number
LI54.18-P-057927
Version
2
Design group
54.18 Cable harnesses
Date
03-07-2014
Validity
Model 117, 176, 246 with engine 270
Reason for change
Remedy adapted
Reason for block
Complaint:
Engine diagnosis warning lamp is active.
One or more of the faults listed under 'Control unit / Fault code' relating to the throttle valve actuator (M16/6) and/or
oxygen sensor (G3/1 and/or G3/2) are stored in the engine control unit.
Cause:
The fault entry could have been caused by occasional transition resistance at connectors.
Remedy:
If all the test steps for these DTCs in Xentry Diagnosis have been performed and NO component faults were found,
the following repair steps must be carried out:
1. Check the connector pins of the affected component(s) (M16/6 and/or G3/1, G3/2) for widening/damage! Make sure that testing is performed using the correct test lead (Use ONLY MLK1.2) from the electricrial test lead kit, otherwise
the contact could be damaged!
2. Disconnect engine control unit (N3/10) "plug connectors - F and M" once and reconnect.
3. If the fault reoccurs, or if a vehicle returns with the same fault, the relevant female pins at the engine control unit
connector "M" or "F" must be replaced. This repair may only be performed by a technician with job codes:
•
516: System Technician
•
514: Diagnostic technician
•
512: Teamleader
•
510: Shop foreman
When performing this repair the attached instructions must be followed!
Notes:
Contact enhancer or cleaner must never be used on contacts on the engine wiring harness. The use of contact cleaners can cause consequential damage!
Attachments
File
Designation
651,270_117,176,246_Tausch Kontaktbuchse_german.
pdf
Instructions: Replace female contact - German
651,270_117,176,246_Change female contact_english.
pdf
Instructions: Replace female contact - English
03-07-2014 9:59 PM
© Copyright Daimler AG
PAHIGGI
Page 1/4
Symptoms
Power generation / Engine management / Engine management indicator lamp / Engine diagnosis / lit
Power generation / Engine management / Engine performance / Goes into limp-home mode
Power generation / Engine management / Engine performance / No/poor output
Control unit/fault code
Control unit
Fault code
Fault text
ME - Motor electronics
'MED40' for combustion engine 'M274' (N3/10)
P213629
The values from position sensors "A/C" of the throttle valve are
implausible relative to each other. There is an invalid signal.
ME - Motor electronics
'MED40' for combustion engine 'M274' (N3/10)
P013812
Oxygen sensor 2 (cylinder bank 1) has a short circuit to positive.
There is a short circuit to positive.
ME - Motor electronics
'MED40' for combustion engine 'M274' (N3/10)
P213500
The values from the position sensors of the throttle valve are implausible relative to each other. _
ME - Motor electronics
'MED40' for combustion engine 'M274' (N3/10)
P213800
The values from the position sensors of the accelerator pedal are
implausible relative to each other. _
ME - Motor electronics
'MED40' for combustion engine 'M274' (N3/10)
P262600
The trimming resistor connection of oxygen sensor 1 (cylinder
bank 1) has an electrical fault or open circuit. _
ME - Motor electronics
'MED40' for combustion engine 'M274' (N3/10)
P213700
The values from position sensors "B/C" of the throttle valve are
implausible relative to each other. _
ME - Motor electronics
'MED40' for combustion engine 'M274' (N3/10)
P013504
The heater for oxygen sensor 1 (cylinder bank 1) has an electrical
fault. There is an internal fault.
ME - Motor electronics
'MED40' for combustion engine 'M274' (N3/10)
P014013
The signal of oxygen sensor 2 (cylinder bank 1) does not change.
There is an open circuit.
ME - Motor electronics
'MED40' for combustion engine 'M274' (N3/10)
P014100
The heater for oxygen sensor 2 (cylinder bank 1) has an electrical
fault. _
ME - Motor electronics
'MED40' for combustion engine 'M274' (N3/10)
P013711
Oxygen sensor 2 (cylinder bank 1) has a short circuit to ground.
There is a short circuit to ground.
ME - Motor electronics
'MED40' for combustion engine 'M274' (N3/10)
P013084
Oxygen sensor 1 (cylinder bank 1) has an electrical fault. There is
a signal below the permissible limit value.
Parts
Part number
ES1 ES2 Designation
03-07-2014 9:59 PM
© Copyright Daimler AG
Quantity Note
PAHIGGI
EPC Other
make
part
Page 2/4
A 021 545 01 26
Female contact MCP1.2 -----0.5-0.75mm²
For engine control unit
connector M/F - See attachment
X
A 021 545 05 26
Female contact MCP1.2 -----0.25-0.35 mm²
For engine control unit
connector M/F - See attachment
X
A 007 989 07 85
Fabric tape
See attachment
X
A 004 997 98 90
Cable tie
For engine control unit
connector M/F - See attachment
X
Work units
Op. no.
Operation text
Time
Damage
code
Note
598BM 74
Connector/line M for gasoline engine
control unit
59781 74
Connector/line for mixing chamber/
throttle valve
59034 74
Connector/line for oxygen sensor
upstream of catalytic converter
59033 74
Connector/line for oxygen sensor
downstream of catalytic converter
WIS-References
Document number
Title
Note
Allocation
AR00.19-P-0120A
Remove contacts from
connectors, couplings
Parts
AR00.19-P-0100A
Wiring harness general repair methods
Parts
WS00.19-P-0006B
220 589 04 99 00 Wiring
harness repair kit, supplement for passenger cars
Parts
WS00.19-P-0002B
220 589 02 99 00 Wiring
harness repair kit
Parts
Validity
Vehicle
Engine
117.342
270
*
117.343
270
*
117.344
270
*
117.346
270
*
246.242
270
*
246.243
270
*
246.244
270
*
03-07-2014 9:59 PM
© Copyright Daimler AG
PAHIGGI
Page 3/4
246.247
270
*
A (176)
270
*
03-07-2014 9:59 PM
© Copyright Daimler AG
PAHIGGI
Page 4/4
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TSB/Document ID: LI54.18-P-057927
Replacement Service Bulletin Number:
MFR Communication Date: 2014-03-07
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ENGINE AND ENGINE COOLING
MFR Component System:
MFR Component Subsystem:
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