U0121 Porsche 993 OBD Code

OBD/2 U0121 error code description and symptoms.

The Throttle Position sensor signals the Engine Control Module as to the current position of the engine throttle valve.
The current throttle valve opening is based on the driver's input from the gas pedal. The ECM uses the information from this sensor to help calculate fuel delivery and spark timing.

Circuit High Input codes like U0121 are mostly caused by defective alternators that develop excessive voltages, although there may be other causes as well, such as short circuits that 'leak' current into a particular system from other, unrelated systems that work on higher voltages. Note that in the case of short circuits that leak power into a control circuit, there is likely to be other, seemingly unrelated trouble codes present along with the code(s) being investigated. Diagnosing a 'high input' code will always involve a thorough testing of the charging system as a first step, followed by measures to isolate the system from all other possible sources of power during resistance, continuity, and reference voltage tests.

U0121 Porsche 993 Error Code Repair Process :

The scent may U0121 signal oil or coolant leaking from their normally closed-loop systems, or it may indicate dangerous exhaust gases invading your car's interior. Car and truck exhaust contains toxic gases such U0121, so if the inside of your car u0121 lost communication with electronic brake control module as if you were standing behind your car, get out and get it fixed. Fight the urge to take a little nap first. So sleepy. That's the carbon monoxide talking, friends. At least open a window on your way to the shop.

Difficulty Level (Easy)

Repair Time (45 Min.)

Cost Prediction : $ 35-120

Common Causes of Porsche 993 U0121 OBD2 Code

A common cause of code U0121 is the failure of U0121 Lost Communication With Electronic Brake Control Module, but there are several other possible causes as well, such as ;

• Damaged ECM
• 1Camshaft Position Sensor circuit poor electrical connection
• Faulty Mass Air Flow (MAF) sensor
• Camshaft advance mechanism binding (VCT unit)

U0121 is a kind of Network Trouble Code U-code indicates that engine communication errors and shows lost communication with engine parts.U-Codes are fairly straight forward, given all of the articles and technical publications that have been written regarding these problematic codes. In most cases, it just comes down to identifying the module that isn't communicating with the other modules on the CAN bus line for whatever reason.

U0121 code for other Porsche cars

You can view according U0121 DTC for your car model. We selected several models to see obd2 solutions click and view it.

• U0121 Porsche 1300
• U0121 Porsche 3400
• U0121 Porsche 356
• U0121 Porsche 550
• U0121 Porsche 718
• U0121 Porsche 804
• U0121 Porsche 901
• U0121 Porsche 904
• U0121 Porsche 906
• U0121 Porsche 907
• U0121 Porsche 908
• U0121 Porsche 910
• U0121 Porsche 911
• U0121 Porsche 911 Type 991
• U0121 Porsche 911 Type 996
• U0121 Porsche 911 Type 997
• U0121 Porsche 912
• U0121 Porsche 914
• U0121 Porsche 917
• U0121 Porsche 924
• U0121 Porsche 928
• U0121 Porsche 930
• U0121 Porsche 931
• U0121 Porsche 935
• U0121 Porsche 936
• U0121 Porsche 937
• U0121 Porsche 944
• U0121 Porsche 959
• U0121 Porsche 962
• U0121 Porsche 964
• U0121 Porsche 965
• U0121 Porsche 968
• U0121 Porsche 986
• U0121 Porsche 996
• U0121 Porsche Boxster
• U0121 Porsche Boxster Type 981
• U0121 Porsche Boxster Type 986
• U0121 Porsche Boxster Type 987
• U0121 Porsche Carrera Gt
• U0121 Porsche Cayenne
• U0121 Porsche Cayenne Type 92a
• U0121 Porsche Cayenne Type 9pa
• U0121 Porsche Cayman
• U0121 Porsche Cayman Type 718
• U0121 Porsche Cayman Type 981
• U0121 Porsche Cayman Type 987
• U0121 Porsche Coupe
• U0121 Porsche Dp
• U0121 Porsche Gt
• U0121 Porsche Gt2
• U0121 Porsche Gt3
• U0121 Porsche Karisma
• U0121 Porsche Kremer
• U0121 Porsche Macan Type 95b
• U0121 Porsche Mega
• U0121 Porsche Panamera Type 970
• U0121 Porsche Panamericana
• U0121 Porsche Rsk
• U0121 Porsche Tapiro

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