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Fault Codes Descriptions
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Source ModuleSPNFMIDescription
TCU367Unexpected Mechanical Gear Disengagement (P0894)
TCU913Pedal Position Sensor Circuit High Voltage (P0123)
TCU914Pedal Position Sensor Circuit Low Voltage (P0122)
TCU918Throttle Position Sensor PWM Signal Low (P1891) or High (P1892)
TCU1103Engine Coolant Temperature Sensor 2 Circuit High (P2185)
TCU1104Engine Coolant Temperature Sensor 2 Circuit Low (P2184)
TCU11621RELS Input Failed On (P071A)
TCU1193Retarder Pressure Sensor Circuit High (P0990)
TCU1194Retarder Pressure Sensor Circuit Low (P0989)
TCU1203Retarder Oil Temperature Sensor Circuit High (P2743)
TCU1204Retarder Oil Temperature Sensor Circuit Low (P2742)
TCU12015Transmission Retarder Oil Temperture Too High
TCU1584System Voltage Low (P0562)
TCU1682TCM Power Input Signal Performance (P0881)
TCU1683Terminal 30, battery voltage; nominal range exceeded
TCU1684TCM Power Input Signal Low (P0882)
TCU16814TCM Power Input Signal (P0880)
TCU1770Transmission Oil Temperature Data Valid But Above Normal Operational Range - Most Severe Level
TCU1772Transmission Fluid Temperature Sensor Circuit Performance (P0711 )
TCU1773Transmission Fluid Temperature Sensor Circuit High (P0713)
TCU1774Transmission Fluid Temperature Sensor Circuit Low (P0712)
TCU17715RETARDER OIL TEMP
TCU1902Engine Speed Sensor Circuit Performance (P0726)
TCU19014Engine Speed Sensor Circuit (P0725)
TCU19021Engine Speed Sensor Circuit No Signal (P0727)
TCU1912Output Shaft Speed Sensor Circuit Performance (P0721)
TCU19114Output Shaft Speed Sensor Circuit (P0720)
TCU19121Output Shaft Speed Sensor Circuit No Signal (P0722)
TCU5137Torque Management Feedback Signal A (P2637) or Signal B (P2641)
TCU57321Torque Converter Clutch (TCC) System Stuck Off (P0741)
TCU5972Brake Switch Circuit (P0703)
TCU62831Control Module Random Access Memory (RAM) (P0604)
TCU63013TCM Not Programmed (P0602)
TCU7403Torque Converter Clutch (TCC) Pressure Control Solenoid (PCS) Control Circuit High (P2763)
TCU7404Torque Converter Clutch (TCC) Pressure Control Solenoid (PCS) Control Circuit Low (P2764)
TCU7405Torque Converter Clutch (TCC) Pressure Control Solenoid (PCS) Control Circuit/Open (P2761)
TCU74731Torque Control Data Mismatch - ECM/TCM (P0614)
TCU7502Turbine Shaft Speed Sensor Circuit Performance (P0716)
TCU75014Turbine Shaft Speed Sensor Circuit (P0715)
TCU75021Turbine Shaft Speed Sensor Circuit No Signal (P0717)
TCU7512Gear Shift Module 1 Invalid Data (U0404)
TCU7518Gear Shift Direction Circuit (P2793)
TCU7519Lost Communication with Gear Shift Module 1 (U0103)
TCU75113Gear Shift Module 1 Calibration Invalid (P1790)
TCU75114Transmission Range Sensor Circuit High (P0708)
TCU75131Gear Shift Module 1 Incompatible (U0304)
TCU7522Gear Shift Module 2 Invalid Data (U0592)
TCU7529Lost Communication with Gear Shift Module 2 (U0291)
TCU75213Gear Shift Module 2 Calibration Invalid (P1791)
TCU75231Gear Shift Module 2 Incompatible (U0333)
TCU7532General Purpose Input Fault (P071D)
TCU78514Transmission Control System Performance (P0701)
TCU8372Conditioned Output Shaft Speed Circuit (P1870 )
TCU8803Stop Lamp Circuit (Red) Voltage Above Normal, Or Shorted To High Source
TCU8805Stop Lamp Circuit (Red) Current Below Normal Or Open Circuit
TCU9285Axle Location Current Below Normal Or Open Circuit
TCU17163Retarder Request Sensor Circuit High (C1313)
TCU17164Retarder Request Sensor Circuit Low (C1312)
TCU20009Lost Communications with ECM A (U0100)
TCU200311Transmission Range Sensor Circuit Performance (P0706)
TCU200312Control Module Performance (P0607)
TCU200331GENERAL TRANSMISSION FAULT
TCU27962Four Wheel Drive (4WD) Switch Circuit Range/Performance (P0837)
TCU29003Crank Enable Circuit High (P081B)
TCU29004Crank Enable Circuit Low (P081A )
TCU29082Main Pressure Modulation Solenoid System Performance (P0961)
TCU29083Main Pressure Modulation Solenoid Control Circuit High (P0963)
TCU29084Main Pressure Modulation Solenoid Control Circuit Low (P0962)
TCU29085Main Pressure Modulation Solenoid Control Circuit Open (P0960)
TCU30273Transmission Fluid Level Sensor Circuit High (P070D)
TCU30274Transmission Fluid Level Sensor Circuit Low (P070C)
TCU33591Transmission Filter Maintenance Required (P088B)
TCU335916Transmission Filter Maintenance Alert (P088A)
TCU335931Transmission Service (Filter Life Monitor)
TCU35092Sensor Reference Voltage "A" Circuit (4) (P0642)
TCU35093Sensor Reference Voltage "A" Circuit High (P0643 )
TCU41771Transmission Fluid Deteriorated (P0897)
TCU417717Transmission Service (Oil Life Monitor)
TCU417831Transmission Service (Transmission Health Monitor)
TCU58762Incorrect Low Gear Ratio (P1739)
TCU58772Incorrect 1st Gear Ratio (P0731)
TCU58782Incorrect 2nd Gear Ratio (P0732)
TCU58792Incorrect 3rd Gear Ratio (P0733)
TCU58802Incorrect 4th Gear Ratio (P0734)
TCU58812Incorrect 5th Gear Ratio (P0735)
TCU58822Incorrect 6th Gear Ratio (P0729)
TCU58872Incorrect Reverse Ratio (P0736)
TCU58882Incorrect Reverse 2 Ratio (P077F)
TCU58913Transmission Fluid Pressure Switch 1 Circuit High (P0843)
TCU58914Transmission Fluid Pressure Switch 1 Circuit Low (P0842)
TCU58923Transmission Fluid Pressure Switch 2 Circuit High (P0848)
TCU58924Transmission Fluid Pressure Switch 2 Circuit Low (P0847)
TCU58933Transmission Fluid Pressure Switch 3 Circuit High (P0873)
TCU58934Transmission Fluid Pressure Switch 3 Circuit Low (P0872)
TCU58943Transmission Fluid Pressure Switch 4 Circuit High (P0878)
TCU58944Transmission Fluid Pressure Switch 4 Circuit Low (P0877)
TCU59003Pressure Control Solenoid (PCS) 1 Control Circuit High (P2730)
TCU59004Pressure Control Solenoid (PCS) 1 Control Circuit Low (P2729)
TCU59005Pressure Control Solenoid (PCS) 1 Control Circuit Open (P2727)
TCU590020Pressure Control Solenoid (PCS) 1 Stuck On (P2724)
TCU590021Pressure Control Solenoid (PCS) 1 Stuck Off (P2723)
TCU59013Pressure Control Solenoid (PCS) 2 Control Circuit High (P0967)
TCU59014Pressure Control Solenoid (PCS) 2 Control Circuit Low (P0966)
TCU59015Pressure Control Solenoid (PCS) 2 Control Circuit Open (P0964)
TCU590120Pressure Control Solenoid (PCS) 2 Stuck On (P0777)
TCU590121Pressure Control Solenoid (PCS) 2 Stuck Off (P0776)
TCU59023Pressure Control Solenoid (PCS) 3 Control Circuit High (P0971)
TCU59024Pressure Control Solenoid (PCS) 3 Control Circuit Low (P0970)
TCU59025Pressure Control Solenoid (PCS) 3 Control Circuit Open (P0968)
TCU590220Pressure Control Solenoid (PCS) 3 Stuck On (P0797)
TCU590221Pressure Control Solenoid (PCS) 3 Stuck Off (P0796)
TCU59033Pressure Control Solenoid (PCS) 4 Control Circuit High (P2721)
TCU59034Pressure Control Solenoid (PCS) 4 Control Circuit Low (P2720)
TCU59035Pressure Control Solenoid (PCS) 4 Control Circuit Open (P2718)
TCU590320Pressure Control Solenoid (PCS) 4 Stuck On (P2715)
TCU590321Pressure Control Solenoid (PCS) 4 Stuck Off (P2714)
TCU59043Pressure Control Solenoid (PCS) 5 Control Circuit High (P2739)
TCU59044Pressure Control Solenoid (PCS) 5 Control Circuit Low (P2738)
TCU59045Pressure Control Solenoid (PCS) 5 Control Circuit Open (P2736)
TCU59053Pressure Control Solenoid (PCS) 6 Control Circuit High (P2815)
TCU59054Pressure Control Solenoid (PCS) 6 Control Circuit Low (P2814)
TCU59055Pressure Control Solenoid (PCS) 6 Control Circuit Open (P2812)
TCU590520Pressure Control Solenoid (PCS) 6 Stuck On (P2809)
TCU590521Pressure Control Solenoid (PCS) 6 Stuck Off (P2808)
TCU59083Shift Solenoid 1 Control Circuit High (P0974)
TCU59084Shift Solenoid 1 Control Circuit Low (P0973)
TCU59085Shift Solenoid 1 Control Circuit Open (P097A)
TCU590820Shift Solenoid 1 Valve Performance - Stuck On (P0752)
TCU590821Shift Solenoid 1 Valve Performance - Stuck Off (P0751)
TCU59093Shift Solenoid 2 Control Circuit High (P0977)
TCU59094Shift Solenoid 2 Control Circuit Low (P0976)
TCU59095Shift Solenoid 2 Control Circuit Open (P097B)
TCU590920Shift Solenoid 2 Valve Performance - Stuck On (P0757)
TCU590921Shift Solenoid 2 Valve Performance - Stuck Off (P0756)
TCU59103Shift Solenoid 3 Control Circuit High (P0980)
TCU59104Shift Solenoid 3 Control Circuit Low (P0979)
TCU59105Shift Solenoid 3 Control Circuit Open (P097C)
TCU591020Shift Solenoid 3 Valve Performance - Stuck On (P0762)
TCU591021Shift Solenoid 3 Valve Performance - Stuck Off (P0761)
TCU59120TCM Internal Temperature Too High (P0634)
TCU65979CAN Communication Bus 1 Off (U0073)
TCU65989CAN Communication Bus 2 Off (U0074)
TCU68223Actuator Supply Circuit Voltage 1 High (HSD 1) (P0659)
TCU68224Actuator Supply Circuit Voltage 1 Low (HSD 1) (P0658)
TCU68225Actuator Supply Circuit Voltage 1 Open (HSD 1) (P0657)
TCU68233Actuator Supply Circuit Voltage 2 High (HSD 2) (P2671)
TCU68234Actuator Supply Circuit Voltage 2 Low (HSD 2) (P2670)
TCU68235Actuator Supply Circuit Voltage 2 Open (HSD 2) (P2669)
TCU68243Actuator Supply Circuit Voltage 3 High (HSD 3) (P2686)
TCU68244Actuator Supply Circuit Voltage 3 Low (HSD 3) (P2685)
TCU68245Actuator Supply Circuit Voltage 3 Open (HSD 3) (P2684)
TCU100121Not system functions - it just shows up here because of the SPNs being in range
TCU1804331Not system functions - it just shows up here because of the SPNs being in range
TCU52123131Internal Control Module Keep Alive Memory Error (P0603 )