Wiring Diagram Cluster

1991 Audi 90 Quattro 20V Starter Wiring Diagram

Find starter circuit schematics, relay paths, and ignition-switch to solenoid wiring references for this vehicle.

Matched Diagrams

48

Variant Used

90 Quattro 20V L5-2309cc 2.3L DOHC (7A)

Total Vehicle Diagrams

1113

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Vehicle Repair Hub

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OEM source

Factory Manual Evidence

When there is no clean repair shortcut for this system, drop into the OEM manual sections that usually carry the authoritative test path.

1991 Audi 90 Quattro 20V Checking Wiring and Components β†’

Diagnostic signal

Codes Often Seen With This System

Use the code cluster when wiring faults overlap with check-engine or module-level diagnostics.

B1318: Battery Voltage Low β†’

Top Starter Diagram Paths

1.Sensors and Switches - Starting and Charging > Ignition Switch β€” Connector ViewsStarting and ChargingOpen2.Sensors and Switches - Starting and Charging > Ignition Switch β€” Diagnostic Aids > Basic ElectricityStarting and ChargingOpen3.Sensors and Switches - Starting and Charging > Ignition Switch β€” Diagnostic Aids > Checking For Short Circuit to GroundStarting and ChargingOpen4.Sensors and Switches - Starting and Charging > Ignition Switch β€” Diagnostic Aids > Checking For VoltageStarting and ChargingOpen5.Sensors and Switches - Starting and Charging > Ignition Switch β€” Diagnostic Aids > Checking Ground ConnectionsStarting and ChargingOpen6.Sensors and Switches - Starting and Charging > Ignition Switch β€” Diagnostic Aids > Checking Wiring and ComponentsStarting and ChargingOpen7.Sensors and Switches - Starting and Charging > Ignition Switch β€” Diagnostic Aids > Trouble Shooting ProcedureStarting and ChargingOpen8.Sensors and Switches - Starting and Charging > Ignition Switch β€” Diagnostic Aids > Working on the Electrical SystemStarting and ChargingOpen9.Sensors and Switches - Starting and Charging > Ignition Switch β€” Diagram Information and Instructions > Connector IndexStarting and ChargingOpen10.Sensors and Switches - Starting and Charging > Ignition Switch β€” Diagram Information and Instructions > General Information > Circuit SectionsStarting and ChargingOpen11.Sensors and Switches - Starting and Charging > Ignition Switch β€” Diagram Information and Instructions > General Information > Handling Components and ConnectorsStarting and ChargingOpen12.Sensors and Switches - Starting and Charging > Ignition Switch β€” Diagram Information and Instructions > Ground ConnectionsStarting and ChargingOpen13.Sensors and Switches - Starting and Charging > Ignition Switch β€” Diagram Information and Instructions > How to Read Displayed Page of Wiring Diagram, Important Stuff!Starting and ChargingOpen14.Sensors and Switches - Starting and Charging > Ignition Switch β€” Diagram Information and Instructions > Positive (+) ConnectionsStarting and ChargingOpen15.Sensors and Switches - Starting and Charging > Ignition Switch β€” Diagram Information and Instructions > Symbols Used in Wiring DiagramsStarting and ChargingOpen16.Sensors and Switches - Starting and Charging > Ignition Switch β€” Diagram Information and Instructions > Understanding Track Style Wiring Diagrams, Important Stuff!Starting and ChargingOpen17.Sensors and Switches - Starting and Charging > Ignition Switch β€” Diagram Information and Instructions > Wire Color Code IdentificationStarting and ChargingOpen18.Sensors and Switches - Starting and Charging > Ignition Switch β€” Diagram Information and Instructions > Wire Size ConversionStarting and ChargingOpen19.Sensors and Switches - Starting and Charging > Ignition Switch β€” Diagram Information and Instructions > Wiring Diagram Circuit IdentificationStarting and ChargingOpen20.Sensors and Switches - Starting and Charging > Ignition Switch β€” Electrical DiagramsStarting and ChargingOpen21.Starting System > Ignition Switch β€” Connector ViewsStarting and ChargingOpen22.Starting System > Ignition Switch β€” Diagnostic Aids > Basic ElectricityStarting and ChargingOpen23.Starting System > Ignition Switch β€” Diagnostic Aids > Checking For Short Circuit to GroundStarting and ChargingOpen24.Starting System > Ignition Switch β€” Diagnostic Aids > Checking For VoltageStarting and ChargingOpen25.Starting System > Ignition Switch β€” Diagnostic Aids > Checking Ground ConnectionsStarting and ChargingOpen26.Starting System > Ignition Switch β€” Diagnostic Aids > Checking Wiring and ComponentsStarting and ChargingOpen27.Starting System > Ignition Switch β€” Diagnostic Aids > Trouble Shooting ProcedureStarting and ChargingOpen28.Starting System > Ignition Switch β€” Diagnostic Aids > Working on the Electrical SystemStarting and ChargingOpen29.Starting System > Ignition Switch β€” Diagram Information and Instructions > Connector IndexStarting and ChargingOpen30.Starting System > Ignition Switch β€” Diagram Information and Instructions > General Information > Circuit SectionsStarting and ChargingOpen31.Starting System > Ignition Switch β€” Diagram Information and Instructions > General Information > Handling Components and ConnectorsStarting and ChargingOpen32.Starting System > Ignition Switch β€” Diagram Information and Instructions > Ground ConnectionsStarting and ChargingOpen33.Starting System > Ignition Switch β€” Diagram Information and Instructions > How to Read Displayed Page of Wiring Diagram, Important Stuff!Starting and ChargingOpen34.Starting System > Ignition Switch β€” Diagram Information and Instructions > Positive (+) ConnectionsStarting and ChargingOpen35.Starting System > Ignition Switch β€” Diagram Information and Instructions > Symbols Used in Wiring DiagramsStarting and ChargingOpen36.Starting System > Ignition Switch β€” Diagram Information and Instructions > Understanding Track Style Wiring Diagrams, Important Stuff!Starting and ChargingOpen37.Starting System > Ignition Switch β€” Diagram Information and Instructions > Wire Color Code IdentificationStarting and ChargingOpen38.Starting System > Ignition Switch β€” Diagram Information and Instructions > Wire Size ConversionStarting and ChargingOpen39.Starting System > Ignition Switch β€” Diagram Information and Instructions > Wiring Diagram Circuit IdentificationStarting and ChargingOpen40.Starting System > Ignition Switch β€” Electrical DiagramsStarting and ChargingOpen41.Electrical Diagrams > Starting and Charging > Ignition SwitchGeneralOpen42.Electrical Diagrams > Starting and Charging > Starter MotorGeneralOpen43.Sensors and Switches - Starting and Charging > Ignition Switch β€” Connector ViewsSensors and SwitchesOpen44.Sensors and Switches - Starting and Charging > Ignition Switch β€” Diagnostic Aids > Basic ElectricitySensors and SwitchesOpen45.Sensors and Switches - Starting and Charging > Ignition Switch β€” Diagnostic Aids > Checking For Short Circuit to GroundSensors and SwitchesOpen46.Sensors and Switches - Starting and Charging > Ignition Switch β€” Diagnostic Aids > Checking For VoltageSensors and SwitchesOpen47.Sensors and Switches - Starting and Charging > Ignition Switch β€” Diagnostic Aids > Checking Ground ConnectionsSensors and SwitchesOpen48.Sensors and Switches - Starting and Charging > Ignition Switch β€” Diagnostic Aids > Checking Wiring and ComponentsSensors and SwitchesOpen

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