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 MANUALSVOLKSWAGEN2011ROUTAN SEREPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSIS3.6L - ENGINE DTC BASED DIAGNOSTICS [CJRA] (P1128 - P2110)00 GENERAL, TECHNICAL DATAENGINEP113D - O2 SENSOR 1/1 SLOW RESPONSETEST STEP 3 - (K99) O2 SENSOR 1/1 SIGNAL CIRCUIT
2011 Volkswagen Routan SE
Test Step 3 - (K99) O2 SENSOR 1/1 SIGNAL CIRCUIT
2011 Volkswagen Routan SESECTION Test Step 3 - (K99) O2 SENSOR 1/1 SIGNAL CIRCUIT
- Turn the ignition off
- Disconnect the O2 Sensor 1/1 harness connector.
- Ignition on, engine not running.
- Measure the voltage on the (K99) O2 Sensor 1/1 Signal circuit in the O2 Sensor 1/1 harness connector.
Is the voltage between 4.1 and 5.0 Volts?
Yes
No
- Check the (K99) O2 Sensor 1/1 Signal circuit for a short to ground, open, or short to voltage. If OK, replace and program the Powertrain Control Module. Refer to Removal and Installation .
- Perform the Powertrain Verification Test. Refer to Engine .
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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.