Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSVOLKSWAGEN2011TIGUAN SEL 4MOTIONREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 83 (BODY EXTERIOR DTC BASED DIAGNOSTICS (B19E8 TO B19CD))00 GENERAL, TECHNICAL DATALEFT REAR DOOR MODULEU0431 - IMPLAUSIBLE DATA RECEIVED FROM FCMTEST STEP 1 - DTC PRESENT
2011 Volkswagen Tiguan SEL 4Motion
Test Step 1 - DTC PRESENT
2011 Volkswagen Tiguan SEL 4MotionSECTION Test Step 1 - DTC PRESENT
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2014 Volkswagen Routan, 2013 Volkswagen Routan, 2012 Volkswagen Routan, 2011 Volkswagen Routan, and 2010 Volkswagen Routan. However, it is still accessible from the selected car via links, so may be relevant.
- With the scan tool, record and erase DTCs.
- Cycle the ignition switch from On to Off.
- Wait 30 seconds.
- Turn the ignition ON.
- With the scan tool, check for DTCs.
Does the scan tool display U0431 - Implausible Data Received From FCM?
No
- Using the wiring diagram/schematic as a guide, inspect the wiring and connectors for an intermittent condition.
- Perform the Body Verification Test. Refer to Body Verification Test .
Yes
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.