Section 79 (HVAC DTC Based Diagnostics - Manual Temperature Control)
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.
- 00 General, Technical Data
- Manual Temperature Control
- Heating And A/C System Diagnostics
- B1000 - A/C Switch Request Input Circuit Performance
- Notes
- Test Step 1 - Inspect the A/C Heater Control for Damage
- Test Step 2 - Inspect for an Object or Substance Causing the A/C Request Switch to Stay or Stick in a Pushed Position
- Test Step 3 - Check for Normal A/C Request Switch and Status Indicator Function
- Test Step 4 - Verify that the DTC is Still Active
- B1003 - Panel Mode Switch Request Input Circuit/Performance
- Notes
- Test Step 1 - Inspect the A/C Heater Control for Damage
- Test Step 2 - Inspect for an Object or Substance Causing the Panel Mode Switch to Stay or Stick in a Pushed Position
- Test Step 3 - Check for Normal Panel Mode Switch and Status Indicator Function
- Test Step 4 - Verify that the DTC is Still Active
- B1006 - Bi-Level Switch Request Input Circuit Low
- B1009 - Recirculation Switch Request Input Circuit/Performance
- Notes
- Test Step 1 - Inspect the A/C Heater Control for Damage
- Test Step 2 - Inspect for an Object or Substance Causing the Recirculation Switch to Stay or Stick in a Pushed Position
- Test Step 3 - Check for Normal Recirculation Switch and Status Indicator Function
- Test Step 4 - Verify That The DTC Is Still Active
- B100C - Floor Mode Switch Request Input Circuit Performance
- B100F - Mix Switch Request Input Circuit Performance
- B1012 - Defrost Switch Request Input Circuit/Performance
- B1015 - Rear Defrost Switch Request Input Circuit/Performance
- Notes
- Test Step 1 - Inspect the A/C Heater Control for Damage
- Test Step 2 - Inspect for an Object or Substance Causing the Rear Defrost Switch to Stay or Stick in a Pushed Position
- Test Step 3 - Check for Normal Rear Defrost Switch and Status Indicator Function
- Test Step 4 - Verify that the DTC is Still Active
- B1016 - Rear Defrost Switch Request Input Circuit Low
- B1028 - Rear Blower Control Request Input Circuit Low
- Notes
- Test Step 1 - Verify the DTC is Active
- Test Step 2 - Check for an Active DTC with Rear Blower Control Switch 8 Way Harness Connector Disconnected
- Test Step 3 - Check the Rear Blower Feed Sense Circuit for a Short to Ground
- Test Step 4 - Check Rear Blend Sense Supply Circuit for a Short to Ground
- Test Step 5 - Check the Rear Blower Feed Sense Circuit for an Open
- Test Step 6 - Check Rear Blend Sense Supply Circuit for an Open
- B1027 - Rear Blower Control Request Input Circuit/Performance
- Notes
- Test Step 1 - Check the Rear Blower Feed Sense Circuit for a Short to Voltage
- Test Step 2 - Check Rear Blend Sense Supply Circuit for a Short to Voltage
- Test Step 3 - Check the Rear Blower Feed Sense Circuit for a Short to Rear Blend Sense Supply Circuit
- Test Step 4 - Check for an Active DTC with Rear Blower Control Switch Disconnected
- B1029 - Rear Blower Control Request Input High
- Notes
- Test Step 1 - Check the Rear Blower Feed Sense Circuit for a Short to Voltage
- Test Step 2 - Check Rear Blend Sense Supply Circuit for a Short to Voltage
- Test Step 3 - Check the Rear Blower Feed Sense Circuit for a Short to Rear Blend Sense Supply Circuit
- Test Step 4 - Check for DTC with Rear A/C Heater Control Switch Disconnected
- B102D - Rear Blend Door Control Circuit/Performance
- Notes
- Test Step 1 - Check Rear Mode Door Driver Circuit, Rear Blend Door Driver Circuit, and Rear Blend Door Driver Circuit for a Short to Voltage
- Test Step 2 - Check Rear Mode Door Driver Circuit, Rear Blend Door Driver Circuit, and Common Door Driver Circuit for a Short to Ground
- Test Step 3 - Check Rear Mode Door Driver Circuit for a Short to Other Door Driver Circuit
- Test Step 4 - Check Rear Mode Door Actuator Circuit Resistance
- Test Step 5 - Check Rear Blend Door Actuator Circuit Resistance
- Test Step 6 - Run the Actuator Calibration Test
- B102E - Rear Blend Request Input Circuit Low
- B102F - Rear Blend Request Input Circuit High
- B1031 - Evaporator Fin Temperature Sensor Circuit Low
- B1032 - Evaporator Fin Temperature Sensor Circuit High
- Notes
- Test Step 1 - Check Evaporator Temperature Sensor Signal Circuit for a Short to Voltage
- Test Step 2 - Check Evaporator Temperature Sensor Signal Circuit, Sensor Ground Circuit, and Evaporator Temperature Sensor
- Test Step 3 - Check Evaporator Temperature Sensor Signal Circuit for an Open
- Test Step 4 - Check Sensor Ground Circuit for an Open
- B103A - Rear Mode Door Control Circuit/Performance
- B103C - Rear Mode Request Circuit/Performance
- Notes
- Test Step 1 - Check for an Active DTC with Rear A/C Heater Control Disconnected
- Test Step 2 - Check Rear Mode Door Driver Circuit for a Short to Voltage
- Test Step 3 - Check Rear Mode Door Driver Circuit for a Short to Ground
- Test Step 4 - Check Rear Mode Door Driver Circuit for a Short to Other Rear A/C Heater Control Circuits
- B103D - Rear Mode Door Control Circuit Open
- B1040 - Panel Mode Door 1 Control Circuit/Performance
- Notes
- Test Step 1 - Check Mode Door Driver Circuit For a Short to Voltage
- Test Step 2 - Check Driver Blend Door Actuator Circuit for a Short to Voltage
- Test Step 3 - Check Recirculation Door Actuator Circuit for a Short to Voltage
- Test Step 4 - Check Passenger Blend Door Actuator Circuit for a Short to Voltage
- Test Step 5 - Check Common Door Driver 2 Circuit for a Short to Voltage
- Test Step 6 - Check Mode Door 1 Driver Circuit for a Short to Ground
- Test Step 7 - Check Driver Blend Door Actuator Circuit for a Short to Ground
- Test Step 8 - Check Recirculation Door Actuator Circuit for a Short to Ground
- Test Step 9 - Check Passenger Blend Door Actuator Circuit for a Short to Ground
- Test Step 10 - Check Common Door Driver 2 Circuit for a Short to Ground
- Test Step 11 - Check Mode Door Driver Circuit for a Short to Other Door Driver Circuits
- Test Step 12 - Check Mode Door Actuator Circuit Resistance
- Test Step 13 - Check Passenger Blend Door Actuator Circuit Resistance
- Test Step 14 - Check Driver Blend Door Actuator Circuit Resistance
- Test Step 15 - Check Recirculation Door Actuator Circuit Resistance
- B1043 - Panel Mode Door 1 Control Circuit Open
- B1044 - Panel Mode Door 1 Travel Range Too Small
- B1045 - Panel Mode Door 1 Travel Range Too Large
- Notes
- Test Step 1 - Check for an Active Control Circuit/Performance and Control Circuit Open DTCs
- Test Step 2 - Check for a Broken Mode Door 1 (Floor To Panel) Actuator
- Test Step 3 - Check Mode 1 (Floor To Panel) Door and A/C Heater Housing For Warped, Worn, Damaged, Missing, and Broken Components
- Test Step 4 - Run the Actuator Calibration Test
- B1052 - Rear Blend Door Control Circuit/Performance
- Notes
- Test Step 1 - Check Rear Mode Door Driver Circuit, Driver Blend Door Driver Circuit, Rear Blend Door Driver Circuit, and C34 Common Door Driver Circuit for a Short to Voltage
- Test Step 2 - Check Rear Mode Door Driver Circuit, Driver Blend Door Driver Circuit, Rear Blend Door Driver Circuit, and Common Door Driver Circuit for a Short to Ground
- Test Step 3 - Check Rear Mode Door Driver Circuit for a Short to Other Door Driver Circuits
- Test Step 4 - Check Rear Blend Door Driver Circuit for a Short to Other Door Driver Circuits
- Test Step 5 - Check Common Door Driver Circuit for a Short to Other Door Driver Circuits
- Test Step 6 - Check Rear Mode Door Actuator Circuit Resistance
- Test Step 7 - Check Rear Blend Door Actuator Circuit Resistance
- Test Step 8 - Run the Actuator Calibration Test
- B1055 - Rear Blend Door Control Circuit Open
- B1056 - Rear Blend Door Travel Range Too Small
- B1057 - Rear Blend Door Travel Range Too Large
- Notes
- Test Step 1 - Check for an Active Control Circuit/Performance and Control Circuit Open DTCs
- Test Step 2 - Check for a Broken Rear Blend Door Actuator
- Test Step 3 - Check Rear Blend Door and Rear A/C Heater Housing For Warped, Worn, Damaged, Missing, and Broken Components
- Test Step 4 - Run the Actuator Calibration Test
- B1058 - Recirculation Door Control Circuit/Performance
- Notes
- Test Step 1 - Check Recirculation Door Driver Circuit for a Short to Voltage
- Test Step 2 - Check Passenger Blend Door Driver Circuit for a Short to Voltage
- Test Step 3 - Check Mode Door Driver Circuit for a Short to Voltage
- Test Step 4 - Check Driver Blend Door Driver Circuit for a Short to Voltage
- Test Step 5 - Check Common Door Driver 2 Circuit for a Short to Voltage
- Test Step 6 - Check Recirculation Door Driver Circuit for a Short to Ground
- Test Step 7 - Check Passenger Blend Door Driver Circuit for a Short to Ground
- Test Step 8 - Check Driver Blend Door Driver Circuit for a Short to Ground
- Test Step 9 - Check Mode Door Driver Circuit for a Short to Ground
- Test Step 10 - Check Common Door Driver 2 Circuit for a Short to Ground
- Test Step 11 - Check Recirculation Door Driver Circuit for a Short to Other Door Driver Circuits
- Test Step 12 - Check Recirculation Door Actuator Circuit Resistance
- Test Step 13 - Check Passenger Blend Door Actuator Circuit Resistance
- Test Step 14 - Check Mode Door Actuator Circuit Resistance
- Test Step 15 - Check Driver Blend Door Actuator Circuit Resistance
- Test Step 16 - Run the Actuator Calibration Test
- B105B - Recirculation Door Control Circuit Open
- B105C - Recirculation Door Travel Range Too Small
- B106E - Rear Blower Control Circuit/Performance
- Notes
- Test Step 1 - Verify The DTC Is Active
- Test Step 2 - Check For Other Request Circuit Low DTCS
- Test Step 3 - CHECK THE REAR A/C HEATER CONTROL CONNECTOR
- Test Step 4 - Check The (C800) 5 Volt Supply Circuit For A Short To Ground
- Test Step 5 - Check The (C800) 5 Volt Supply Circuit For An Open
- Test Step 6 - Check The (C11) Rear Blower Signal Circuit For A Short To Ground
- Test Step 7 - Check The (C11) Rear Blower Signal Circuit For An Open
- Test Step 8 - Check The HVAC Control Modules
- Test Step 9 - CHECK THE WIRING AND CONNECTORS
- B1072 - Rear Blower Control Request Input Circuit Low
- B1073 - Rear Blower Control Request Input Circuit High
- B1084 - Left Heated Seat Switch Input Circuit Performance
- B1087 - Right Heated Seat Switch Input Circuit Performance
- B10A2 - Left Blend Door Control Circuit/Performance
- Notes
- Test Step 1 - Check Recirculation Door Driver Circuit for a Short to Voltage
- Test Step 2 - Check Passenger Blend Door Driver Circuit for a Short to Voltage
- Test Step 3 - Check Mode Door Driver Circuit for a Short to Voltage
- Test Step 4 - Check Driver Blend Door Driver Circuit for a Short to Voltage
- Test Step 5 - Check Common Door Driver 2 Circuit for a Short to Voltage
- Test Step 6 - Check Recirculation Door Driver Circuit for a Short to Ground
- Test Step 7 - Check Passenger Blend Door Driver Circuit for a Short to Ground
- Test Step 8 - Check Driver Blend Door Driver Circuit for a Short to Ground
- Test Step 9 - Check Mode Door Driver Circuit for a Short to Ground
- Test Step 10 - Check Common Door Driver 2 Circuit for a Short to Ground
- Test Step 11 - Check Recirculation Door Driver Circuit for a Short to Other Door Driver Circuits
- Test Step 12 - Check Recirculation Door Actuator Circuit Resistance
- Test Step 13 - Check Passenger Blend Door Actuator Circuit Resistance
- Test Step 14 - Check Mode Door Actuator Circuit Resistance
- Test Step 15 - Check Driver Blend Door Actuator Circuit Resistance
- Test Step 16 - Run the Actuator Calibration Test
- B10A5 - Left Blend Door Control Circuit Open
- B10A9 - Right Blend Door Control Circuit/Performance
- Notes
- Test Step 1 - Check Recirculation Door Driver Circuit for a Short to Voltage
- Test Step 2 - Check Passenger Blend Door Driver Circuit for a Short to Voltage
- Test Step 3 - Check Mode Door Driver Circuit for a Short to Voltage
- Test Step 4 - Check Driver Blend Door Driver Circuit for a Short to Voltage
- Test Step 5 - Check Common Door Driver 2 Circuit for a Short to Voltage
- Test Step 6 - Check Recirculation Door Driver Circuit for a Short to Ground
- Test Step 7 - Check Passenger Blend Door Driver Circuit for a Short to Ground
- Test Step 8 - Check Driver Blend Door Driver Circuit for a Short to Ground
- Test Step 9 - Check Mode Door Driver Circuit for a Short to Ground
- Test Step 10 - Check Common Door Driver 2 Circuit for a Short to Ground
- Test Step 11 - Check Recirculation Door Driver Circuit for a Short to Other Door Driver Circuits
- Test Step 12 - Check Recirculation Door Actuator Circuit Resistance
- Test Step 13 - Check Passenger Blend Door Actuator Circuit Resistance
- Test Step 14 - Check Mode Door Actuator Circuit Resistance
- Test Step 15 - Check Driver Blend Door Actuator Circuit Resistance
- Test Step 16 - Run the Actuator Calibration Test
- B10AC - Right Blend Door Control Circuit Open
- B10B0 - Infrared Sensor Thermistor Circuit Low
- B10B1 - Infrared Sensor Thermistor Circuit High
- B10C2 - Rear Defrost Switch Stuck - HVAC Control Head
- B113D - Rear Mode Request Low
- B113E - Rear Mode Request High
- B113F - Rear Power On/Off Switch Performance
- Notes
- Test Step 1 - Inspect the A/C Heater Control for Damage
- Test Step 2 - Inspect for an Object or Substance Causing the Rear Power On/Off Switch to Stay or Stick in a Pushed Position
- Test Step 3 - Check for Normal Rear Power On/Off Switch and Status Indicator Function
- Test Step 4 - Verify that the DTC is Still Active
- B1140 - Rear Power Lock Out Switch Performance
- Notes
- Test Step 1 - Inspect the A/C Heater Control for Damage
- Test Step 2 - Inspect for an Object or Substance Causing the Rear Power Lock Out Switch to Stay or Stick in a Pushed Position
- Test Step 3 - Check for Normal Rear Power Lock Out Switch and Status Indicator Function
- Test Step 4 - Verify that the DTC is Still Active
- B1143 - Mode Down Switch Performance
- Notes
- Test Step 1 - Inspect the A/C Heater Control for Damage
- Test Step 2 - Inspect for an Object or Substance Causing the Mode Down Switch to Stay or Stick in a Pushed Position
- Test Step 3 - Check for Normal Mode Down Switch and Status Indicator Function
- Test Step 4 - Verify that the DTC is Still Active
- B116E - Rear Floor Mode Switch Request Input Circuit/Performance
- Notes
- Test Step 1 - Inspect the A/C Heater Control for Damage
- Test Step 2 - Inspect for an Object or Substance Causing the Rear Floor Mode Switch to Stay or Stick in a Pushed Position
- Test Step 3 - Check for Normal Rear Floor Mode Switch and Status Indicator Function
- Test Step 4 - Verify that the DTC is Still Active
- B116F - Rear Bi-Level Switch Request Input Circuit/Performance
- Notes
- Test Step 1 - Inspect the A/C Heater Control for Damage
- Test Step 2 - Inspect for an Object or Substance Causing the Rear Bi-Level Switch to Stay or Stick in a Pushed Position
- Test Step 3 - Check for Normal Rear Bi-Level Switch and Status Indicator Function
- Test Step 4 - Verify that the DTC is Still Active
- B1170 - Rear Control Panel Switch Request Input Circuit/Performance
- Notes
- Test Step 1 - Inspect the A/C Heater Control for Damage
- Test Step 2 - Inspect for an Object or Substance Causing the Rear Control Panel Switch to Stay or Stick in a Pushed Position
- Test Step 3 - Check for Normal Rear Control Panel Switch and Status Indicator Function
- Test Step 4 - Verify that the DTC is Still Active
- B1610 - Ambient Light Sensor Input Circuit Low
- B160F - Ambient Light Sensor Input Circuit Performance
- B1611 - Ambient Light Sensor Input Circuit Low
- B210A - System Voltage Low
- B210D - System Voltage High
- B2214 - HVAC Climate Control Internal
- U0010 - CAN Interior Bus
- Notes
- Test Step 1 - Verify the DTC is Active
- Test Step 2 - Check for an Active CAN Bus Related DTCs in the Totally Integrated Power Module
- Test Step 3 - Check CAN Interior Bus (+) Circuit for an Open
- Test Step 4 - Check CAN Interior Bus (-) Circuit for an Open
- Test Step 5 - Check CAN C Interior Bus (+) Circuit for a Short to Ground
- Test Step 6 - Check CAN C Interior Bus (-) Circuit for a Short to Ground
- Test Step 7 - Check CAN C Interior Bus (+) Circuit for a Short to Voltage
- Test Step 8 - Check CAN C Interior Bus (-) Circuit for a Short to Voltage
- U0012 - CAN Interior Bus (+) Circuit Open
- U0013 - CAN Interior Bus (+) Circuit Low
- U0014 - CAN Interior Bus (+) Circuit High
- U0015 - CAN Interior Bus (-) Circuit Open
- U0016 - CAN Interior Bus (-) Circuit Low
- U0017 - CAN Interior Bus (-) Circuit High
- U0018 - CAN Interior Bus (-) Circuit Shorted To Bus (+)
- U0141 - Lost Communication With The Front Control Module/Totally Integrated Power Module
- U0151 - Lost Communication With The Occupant Restraint Controller
- U0154 - Lost Communication With The Occupant Classification Module
- U0155 - Lost Communication With The Cluster/CCN
- U0159 - Lost Communication With The Parking Assist Control Module
- U0167 - Lost Communication With The Intrusion Transceiver Control Module
- U0168 - Lost Communication With The Vehicle Security Control Module
- U0169 - Lost Communication With The Sunroof Control Module
- U0181 - Lost Communication With The Headlamp Leveling Translator
- U0184 - Lost Communication With The Radio
- U0186 - Lost Communication With The Audio Amplifier
- U0187 - Lost Communication With The DVD Player
- U0196 - Lost Communication With The Vehicle Entertainment Control Module
- U0197 - Lost Communication With The Hands Free Phone Module
- U0200 - Lost Communication With The Passenger Door Module
- U0201 - Lost Communication With The Left Rear Door Module
- U0202 - Lost Communication With The Right Rear Door Module
- U0203 - Lost Communication With The Door Module Front Left
- U0204 - Lost Communication With The Front Right Door Module
- U0246 - Lost Communication With The Power Folding Seat Module
- U0249 - Lost Communication With The Rear 2 Vehicle Entertainment Control Module
- U1143 - Lost Communication With The Left Power Sliding Door Module
- U1144 - Lost Communication With The Right Power Sliding Door Module
- Manual Three Zone Temperature Control
- Manual Temperature Control