Trouble Code: P0420 Volkswagen – Catalyst System Efficiency Below Threshold

P0420 Volkswagen Code Definition Catalyst System Efficiency Below Threshold Symptoms: Check Engine Light will illuminate In most cases, there are no adverse conditions noticed by the driver In some cases, there may be some performance problems noticed by the driver

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U300F Volkswagen Ignition Input Accessory

U300F Volkswagen Ignition Input Accessory OBD Code: System: Subsystem:  U300F Volkswagen – (ASE)  Network Communication  Fuel & Air metering, Auxiliary emission controls Trouble Code Description: Ignition Input Accessory Location: Analysis: Possible Causes:       Tech description: Volkswagen Vehicle:Volkswagen CC,Volkswagen Eos,Volkswagen

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U3010 Volkswagen Ignition Input Start

U3010 Volkswagen Ignition Input Start OBD Code: System: Subsystem:  U3010 Volkswagen – (ASE)  Network Communication  Fuel & Air metering, Auxiliary emission controls Trouble Code Description: Ignition Input Start Location: Analysis: Possible Causes:       Tech description: Volkswagen Vehicle:Volkswagen CC,Volkswagen Eos,Volkswagen

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U300D Volkswagen Ignition Input On / Start

U300D Volkswagen Ignition Input On / Start OBD Code: System: Subsystem:  U300D Volkswagen – (ASE)  Network Communication  Fuel & Air metering, Auxiliary emission controls Trouble Code Description: Ignition Input On / Start Location: Analysis: Possible Causes:       Tech description:

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U300E Volkswagen Ignition Input On

U300E Volkswagen Ignition Input On OBD Code: System: Subsystem:  U300E Volkswagen – (ASE)  Network Communication  Fuel & Air metering, Auxiliary emission controls Trouble Code Description: Ignition Input On Location: Analysis: Possible Causes:       Tech description: Volkswagen Vehicle:Volkswagen CC,Volkswagen Eos,Volkswagen

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U300A Volkswagen Ignition Switch

U300A Volkswagen Ignition Switch OBD Code: System: Subsystem:  U300A Volkswagen – (ASE)  Network Communication  Fuel & Air metering, Auxiliary emission controls Trouble Code Description: Ignition Switch Location: Analysis: Possible Causes:       Tech description: Volkswagen Vehicle:Volkswagen CC,Volkswagen Eos,Volkswagen Golf,Volkswagen GTI,Volkswagen

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U300B Volkswagen Ignition Input Accessory / On / Start

U300B Volkswagen Ignition Input Accessory / On / Start OBD Code: System: Subsystem:  U300B Volkswagen – (ASE)  Network Communication  Fuel & Air metering, Auxiliary emission controls Trouble Code Description: Ignition Input Accessory / On / Start Location: Analysis: Possible Causes:  

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U300C Volkswagen Ignition Input Off / On / Start

U300C Volkswagen Ignition Input Off / On / Start OBD Code: System: Subsystem:  U300C Volkswagen – (ASE)  Network Communication  Fuel & Air metering, Auxiliary emission controls Trouble Code Description: Ignition Input Off / On / Start Location: Analysis: Possible Causes:  

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U3007 Volkswagen Control Module Input Power B

U3007 Volkswagen Control Module Input Power B OBD Code: System: Subsystem:  U3007 Volkswagen – (ASE)  Network Communication  Fuel & Air metering, Auxiliary emission controls Trouble Code Description: Control Module Input Power B Location: Analysis: Possible Causes:  Input Power B    

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U3008 Volkswagen Control Module Ground A

U3008 Volkswagen Control Module Ground A OBD Code: System: Subsystem:  U3008 Volkswagen – (ASE)  Network Communication  Fuel & Air metering, Auxiliary emission controls Trouble Code Description: Control Module Ground A Location: Analysis: Possible Causes:  Control Module G     Tech description:

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U3009 Volkswagen Control Module Ground B

U3009 Volkswagen Control Module Ground B OBD Code: System: Subsystem:  U3009 Volkswagen – (ASE)  Network Communication  Fuel & Air metering, Auxiliary emission controls Trouble Code Description: Control Module Ground B Location: Analysis: Possible Causes:  Control Module G     Tech description:

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U3004 Volkswagen Accessory Power Relay

U3004 Volkswagen Accessory Power Relay OBD Code: System: Subsystem:  U3004 Volkswagen – (ASE)  Network Communication  Fuel & Air metering, Auxiliary emission controls Trouble Code Description: Accessory Power Relay Location: Analysis: Possible Causes:  Relay Control Circuit     Tech description: Volkswagen Vehicle:Volkswagen

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U3005 Volkswagen Retained Accessory Power

U3005 Volkswagen Retained Accessory Power OBD Code: System: Subsystem:  U3005 Volkswagen – (ASE)  Network Communication  Fuel & Air metering, Auxiliary emission controls Trouble Code Description: Retained Accessory Power Location: Analysis: Possible Causes:       Tech description: Volkswagen Vehicle:Volkswagen CC,Volkswagen Eos,Volkswagen

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U3006 Volkswagen Control Module Input Power A

U3006 Volkswagen Control Module Input Power A OBD Code: System: Subsystem:  U3006 Volkswagen – (ASE)  Network Communication  Fuel & Air metering, Auxiliary emission controls Trouble Code Description: Control Module Input Power A Location: Analysis: Possible Causes:  Input Power A    

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U3002 Volkswagen Vehicle Identification Number

U3002 Volkswagen Vehicle Identification Number OBD Code: System: Subsystem:  U3002 Volkswagen – (ASE)  Network Communication  Fuel & Air metering, Auxiliary emission controls Trouble Code Description: Vehicle Identification Number Location: Analysis: Possible Causes:       Tech description: Volkswagen Vehicle:Volkswagen CC,Volkswagen Eos,Volkswagen

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U3003 Volkswagen Battery Voltage

U3003 Volkswagen Battery Voltage OBD Code: System: Subsystem:  U3003 Volkswagen – (ASE)  Network Communication  Fuel & Air metering, Auxiliary emission controls Trouble Code Description: Battery Voltage Location: Analysis: Possible Causes:       Tech description: Volkswagen Vehicle:Volkswagen CC,Volkswagen Eos,Volkswagen Golf,Volkswagen GTI,Volkswagen

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U2523 Volkswagen Communication error to PCM

U2523 Volkswagen Communication error to PCM Volkswagen Vehicle:Volkswagen CC,Volkswagen Eos,Volkswagen Golf,Volkswagen GTI,Volkswagen Jetta,Volkswagen New Beetle,Volkswagen Passat,Volkswagen Routan,Volkswagen Tiguan,Volkswagen Touareg,Volkswagen Beetle,Volkswagen Golf,Volkswagen Polo,Volkswagen Touran,Volkswagen up,Volkswagen Sharan,Volkswagen Santana,Volkswagen Lavida

U3000 Volkswagen Control Module

U3000 Volkswagen Control Module OBD Code: System: Subsystem:  U3000 Volkswagen – (ASE)  Network Communication  Fuel & Air metering, Auxiliary emission controls Trouble Code Description: Control Module Location: Analysis: Possible Causes:       Tech description: Volkswagen Vehicle:Volkswagen CC,Volkswagen Eos,Volkswagen Golf,Volkswagen GTI,Volkswagen

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U3001 Volkswagen Control Module Improper Shutdown

U3001 Volkswagen Control Module Improper Shutdown OBD Code: System: Subsystem:  U3001 Volkswagen – (ASE)  Network Communication  Fuel & Air metering, Auxiliary emission controls Trouble Code Description: Control Module Improper Shutdown Location: Analysis: Possible Causes:       Tech description: Volkswagen Vehicle:Volkswagen

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