C3838 Porsche 993 OBD Code

OBD/2 C3838 error code description and symptoms.

Vehicle Speed Sensor (VSS) Intermittent Indicates the powertrain control module (PCM) detected an error in the vehicle speed information. Vehicle speed data is received from either the vehicle speed sensor (VSS), transfer case speed sensor (TCSS), anti-lock brake system (ABS) control module, generic electronic module (GEM), or central timer module (CTM). This DTC is set the same way as C3838. However, it is intended to flash the transmission control indicator lamp (TCIL) for first time VSS circuit error/malfunctions. Refer to possible causes for C3838

Circuit High Input codes like C3838 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.

C3838 Porsche 993 Error Code Repair Process :

When you turn on the ignition, the Service Engine Soon or Check Engine C3838 light should flash briefly, indicating that the OBD system is ready to scan your vehicle for any malfunctions. After this brief flash, the light should stay off while you drive as long as no problems are detected. If adaptive mode switch circuit failure so, you'll be glad to know that your vehicle is equipped with an early warning system that could save you time, money, and fuel in addition to helping protect the adaptive mode switch circuit failure.

Difficulty Level (Easy)

Repair Time (45 Min.)

Cost Prediction : $ 75-90

Common Causes of Porsche 993 C3838 OBD2 Code

A common cause of code C3838 is the failure of Adaptive Mode Switch Circuit Failure, but there are several other possible causes as well, such as ;

• EVAP system hose leaking
• Faulty starter motor
• Clogged or faulty fuel injector (s)
• Damaged ECM

C3838 is a kind of Chassis Trouble Code Diagnosing chassis noises can be one of the most frustrating problems technicians face. Fortunately, manufacturers have engineered noise, vibration and harshness (NVH) diagnostic techniques and equipment to find the source of the noise.

C3838 code for other Porsche cars

You can view according C3838 DTC for your car model. We selected several models to see obd2 solutions click and view it.

• C3838 Porsche 1300
• C3838 Porsche 3400
• C3838 Porsche 356
• C3838 Porsche 550
• C3838 Porsche 718
• C3838 Porsche 804
• C3838 Porsche 901
• C3838 Porsche 904
• C3838 Porsche 906
• C3838 Porsche 907
• C3838 Porsche 908
• C3838 Porsche 910
• C3838 Porsche 911
• C3838 Porsche 911 Type 991
• C3838 Porsche 911 Type 996
• C3838 Porsche 911 Type 997
• C3838 Porsche 912
• C3838 Porsche 914
• C3838 Porsche 917
• C3838 Porsche 924
• C3838 Porsche 928
• C3838 Porsche 930
• C3838 Porsche 931
• C3838 Porsche 935
• C3838 Porsche 936
• C3838 Porsche 937
• C3838 Porsche 944
• C3838 Porsche 959
• C3838 Porsche 962
• C3838 Porsche 964
• C3838 Porsche 965
• C3838 Porsche 968
• C3838 Porsche 986
• C3838 Porsche 996
• C3838 Porsche Boxster
• C3838 Porsche Boxster Type 981
• C3838 Porsche Boxster Type 986
• C3838 Porsche Boxster Type 987
• C3838 Porsche Carrera Gt
• C3838 Porsche Cayenne
• C3838 Porsche Cayenne Type 92a
• C3838 Porsche Cayenne Type 9pa
• C3838 Porsche Cayman
• C3838 Porsche Cayman Type 718
• C3838 Porsche Cayman Type 981
• C3838 Porsche Cayman Type 987
• C3838 Porsche Coupe
• C3838 Porsche Dp
• C3838 Porsche Gt
• C3838 Porsche Gt2
• C3838 Porsche Gt3
• C3838 Porsche Karisma
• C3838 Porsche Kremer
• C3838 Porsche Macan Type 95b
• C3838 Porsche Mega
• C3838 Porsche Panamera Type 970
• C3838 Porsche Panamericana
• C3838 Porsche Rsk
• C3838 Porsche Tapiro

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