LI4015P073336

Front Right Tire Pressure Sensor Nonfunctional/Not Detected
Topic number
LI40.15-P-073336
Version
1
Function group
40.15 - Tire pressure/tire pressure monitoring
Date
7/26/21
Validity
Model series 118, 177, 243 and 247 with code 475 (Tire
pressure monitor)
Reason for change
Complaint
Front right tire pressure sensor sporadically or permanently not detected.
Applicable fault codes on front right tire pressure sensor, see table "Control unit/fault code".
Cause
Coaxial cable from instrument cluster to instrument cluster control unit (under driver's seat) damaged.
Attachments
File
Description
Koaxialkabel defek-
Coaxial cable damaged
t.jpg
WIS-References
Document number
Title
Note
AR54.30-P-6023MFA
Remove/install display module
-
AR54.30-P-7101MFA
Remove/install instrument cluster con- trol unit
26.07.2021 17:19:20
© Copyright Mercedes-Benz AG
JKANTAR
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Remedy
Check coaxial cable from display cluster for head unit/instrument cluster (A26/17 or A40/16 - depending on equipment
variant) to head unit/display cluster control unit (N133/1 or N166).
If the plug contact of the coaxial cable or the connector housing connection is faulty, replace coaxial cable (see XPI).
Symptoms
Chassis/suspension > Wheels/tires > Tire pressure monitor TPM display > Display in yellow > Tire press. monitor
temporarily unavailable
Chassis/suspension > Wheels/tires > Tire pressure monitor TPM display > Display in yellow > Tire press. monitor inoperative No wheel sensors
Chassis/suspension > Wheels/tires > Tire pressure monitor TPM display > Display in yellow > Tire press. monitor inoperative
Chassis/suspension > Wheels/tires > Tire pressure monitor TPM display > Display in yellow > Tire pressure monitor
currently unavailable
Chassis/suspension > Wheels/tires > Tire pressure monitor TPM display > Display in yellow > Tire press. monitoring
No wheel sensors
Parts
Part number
ES1 ES2 Designation
A 177 540 ** **
Quantity Note
Electrical wiring harness for
Connect 5/Connect 20 head
unit
1
EPC
Main group 54, picture 545, position
300
X
Control unit/fault code
Control unit
Fault text
N88 - Tire pressure monitor (TPM)
U116509 - Communication with tire pressure sensor 4
has a malfunction. There is a component fault.
U116409 - Communication with tire pressure sensor 3
has a malfunction. There is a component fault.
U116309 - Communication with tire pressure sensor 2
has a malfunction. There is a component fault.
U116209 - Communication with tire pressure sensor 1
has a malfunction. There is a component fault.
C1504FA - Tire pressure sensor 4 has a malfunction. _
C1501FA - Tire pressure sensor 1 has a malfunction. _
C1503FA - Tire pressure sensor 3 has a malfunction. _
C1502FA - Tire pressure sensor 2 has a malfunction. _
Operation numbers/damage codes
Op. no.
Operation text
26.07.2021 17:19:20
© Copyright Mercedes-Benz AG
Time
JKANTAR
Damage
code
Note
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26.07.2021 17:19:20
© Copyright Mercedes-Benz AG
JKANTAR
Page 3 / 3