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 MANUALSVOLKSWAGEN2010ROUTAN SREPAIR AND DIAGNOSISTRANSMISSIONAUTOMATIC TRANSNON-DTC BASED DIAGNOSTICS (ELECTRICAL EQUIPMENT - AUTOMATIC TRANSMISSION)00 GENERAL, TECHNICAL DATAHVACHVAC SYSTEM TEST, MANUAL TEMPERATURE CONTROLTEST STEP 3 - MODE SWITCH AND DOOR ACTUATOR CIRCUIT TEST
2010 Volkswagen Routan S
Test Step 3 - Mode Switch And Door Actuator Circuit Test
2010 Volkswagen Routan SSECTION Test Step 3 - Mode Switch And Door Actuator Circuit Test
NOTE:
If at anytime a DTC becomes active during this test, proceed to the conclusion question. If multiple DTCs are active, diagnose those that relate to a short circuit first.
- Start the engine and turn the Blower control to the low speed position.
- Set the Blend control to the full cold position.
- Monitor the scan tool for active HVAC DTCs while performing the following test steps.
- If equipped, press the A/C mode switch on, wait 30 seconds, and then press it off.
- Press the Recirculation mode switch on, wait 30 seconds, and then press it off.
- If equipped, press the EBL mode switch on, wait 30 seconds, and then press it off.
- Move the blend or temperature control from full cold to full hot, wait 30 seconds, and then move it back to full cold.
- Turn the Mode select control to all positions, wait 30 seconds between each position.
Does the scan tool display any active DTCs?
Yes
- Perform the appropriate diagnostic procedure.
No
- Go to Test Step Test Step 4 - Actuator Calibration Test .
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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.