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 MANUALSAUDI2009A6 BASEREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 53 (4.2L V8 5V GENERIC SCAN TOOL, ENGINE CODE(S): BNK)ST GENERIC SCAN TOOLDIAGNOSTIC TROUBLE CODE (DTC) TABLESSAE P0XXX-DTCSTRANSMISSION 09L

2009 Audi A6 Base

Transmission 09L

2009 Audi A6 BaseSECTION Transmission 09L

WARNING: This page is about a different car, the 2006 Audi A6 and 2005 Audi A6. However, it is still accessible from the selected car via links, so may be relevant.

SAE-DTC	DTC text	Corrective action
P0700	Transmission Control System (MIL Request)	Replace Transmission Control Module (TCM) J217 → Transmission Control Module (TCM) J217, replacing .
P0706	Transmission Range Sensor Circuit Range/Performance	Check Multi-Function Transmission Range (TR) Switch F125 → Multi-Function Transmission Range (TR) Switch, checking .
P0710	Transmission Fluid Temperature Sensor A Circuit	Check ATF level: → 37 - AUTOMATIC TRANSMISSION - CONTROLS, HOUSING Check Transmission Fluid Temperature Sensor G93 → Transmission Fluid Temperature Sensor, checking .
P0711	Transmission Fluid Temperature Sensor A Circuit Range/Performance
P0712	Transmission Fluid Temperature Sensor A Circuit Low
P0713	Transmission Fluid Temperature Sensor A Circuit High
P0714	Transmission Fluid Temperature Sensor A Circuit Intermittent
P0716	Input/Turbine Speed Sensor A Circuit Range/Performance	Check Transmission Input Speed (RPM) Sensor G182 → Sensor for transmission RPM, checking .
P0717	Input/Turbine Speed Sensor A Circuit No Signal
P0721	Output Speed Sensor Circuit Range/Performance	Check Transmission Output Speed (RPM) Sensor G195 → Sensor for transmission output RPM, checking .
P0722	Output Speed Sensor Circuit No Signal
P0727	Engine Speed Input Circuit No Signal	Check wiring connection Between Engine Control Module (ECM) J623 and the Transmission Control Module (TCM) J217 according to wiring diagrams. Check Engine Speed (RPM) Sensor G28 → Engine Speed (RPM) Sensor G28, checking .
P0729	Gear 6 Incorrect Ratio	Check ATF level: → 37 - AUTOMATIC TRANSMISSION - CONTROLS, HOUSING Check pressure regulator valves → Pressure regulator valves, checking . Check Solenoid Valve 1 N88 → Solenoid valve 1, checking . Mechanical malfunction in transmission
P0731	Gear 1 Incorrect Ratio
P0732	Gear 2 Incorrect Ratio
P0733	Gear 3 Incorrect Ratio
P0734	Gear 4 Incorrect Ratio
P0735	Gear 5 Incorrect Ratio
P0736	Reverse Incorrect ratio
P0741	Torque Converter Clutch Circuit Performance or Stuck Off	Check Engine Speed (RPM) Sensor G28 → Engine Speed (RPM) Sensor G28, checking . Check Transmission Input Speed (RPM) Sensor G182 → Sensor for transmission RPM, checking . Check Automatic Transmission Pressure Regulating Valve 6 N371 → Pressure regulator valves, checking .
P0746	Pressure Control Solenoid 'A Performance or Stuck Off	Check Automatic Transmission Pressure Regulating Valve 1 N215 → Pressure regulator valves, checking .
P0747	Pressure Control Solenoid 'A Stuck On
P0748	Pressure Control Solenoid 'A Electrical
P0751	Shift Solenoid A Performance or Stuck Off	Check Solenoid Valve 1 N88 → Solenoid valve 1, checking .
P0752	Shift Solenoid Stuck On	Check Solenoid Valve 1 N88 → Solenoid valve 1, checking .
P0776	Pressure Control Solenoid B Performance or Stuck Off	Check ATF level: → 37 - AUTOMATIC TRANSMISSION - CONTROLS, HOUSING Check pressure regulator valves → Pressure regulator valves, checking .
P0777	Pressure Control Solenoid B Stuck On
P0778	Pressure Control Solenoid B Electrical
P0781	1-2 Shift	Check ATF level: → 37 - AUTOMATIC TRANSMISSION - CONTROLS, HOUSING Check pressure regulator valves → Pressure regulator valves, checking . Mechanical malfunction in transmission
P0782	2-3 Shift
P0783	3-4 Shift
P0784	4-5 Shift
P0796	Pressure Control Solenoid C Performance or Stuck Off	Check Automatic Transmission Pressure Regulating Valve 3 N217 → Pressure regulator valves, checking .
P0797	Pressure Control Solenoid C Stuck On
P0798	Pressure Control Solenoid C Electrical
P0829	5-6 Shift	Check ATF level: → 37 - AUTOMATIC TRANSMISSION - CONTROLS, HOUSING Check pressure regulator valves → Pressure regulator valves, checking . Mechanical malfunction in transmission
P0889	TCM Power Relay Sense Circuit Range/Performance	Check pressure regulator valves → Pressure regulator valves, checking . Check Solenoid Valve 1 N88 → Solenoid valve 1, checking .
P0890	TCM Power Relay Sense Circuit Low
P0891	TCM Power Relay Sense Circuit High
P0892	TCM Power Relay Sense Circuit Intermittent

RENDER: 1.0x

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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.