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Automatic Transmission - Allison - Diagnostic Code Index GMC Sierra II

DTCDescription
DTC P0218P0218: Transmission Fluid Overtemperature
DTC P0502P0502: Vehicle Speed Sensor (VSS) Absence of Signal
DTC P0561P0561: System Voltage Performance
DTC P0562, P0563, or P2534P0562: System Voltage Low P0563: System Voltage High P2534: Ignition 1 Switch Circuit Low Voltage
DTC P0602P0602: Transmission Control Module (TCM) Not Programmed
DTC P0634P0634: Transmission Control Module (TCM) Overtemperature
DTC P0657 or P0658P0657: Solenoid High Control Circuit Group 1 P0658: Solenoid High Control Circuit Group 1 Low Voltage
DTC P0659 or P2671P0659: Solenoid High Control Circuit Group 1 High Voltage P2671: Solenoid High Control Circuit Group 2 High Voltage
DTC P0701P0701: Transmission Control System Performance
DTC P0706P0706: Transmission Range Sensor Circuit Performance
DTC P0708P0708: Transmission Range Switch Circuit High Voltage
DTC P0711P0711: Transmission Fluid Temperature (TFT) Sensor Circuit Low Performance
DTC P0712 or P0713P0712: Transmission Fluid Temperature (TFT) Sensor Circuit Low Voltage P0713: Transmission Fluid Temperature (TFT) Sensor Circuit High Voltage
DTC P0716 or P0717P0716: Turbine Input Speed Sensor Performance P0717: Turbine Input Speed Low
DTC P071AP071A: Transmission Tow Mode Switch Circuit
DTC P0721 or P0722P0721: Output Speed Sensor Performance P0722: Output Speed Sensor Circuit Low Voltage
DTC P0729 or P0731-P0736P0729: Incorrect 6th Gear Ratio P0731: Incorrect 1st Gear Ratio P0732: Incorrect 2nd Gear Ratio P0733: Incorrect 3rd Gear Ratio P0734: Incorrect 4th Gear Ratio P0735: Incorrect 5th Gear Ratio P0736: Incorrect Reverse Gear Ratio
DTC P0741 or P0742P0741: Torque Converter Clutch (TCC) System-Stuck Off P0742: Torque Converter Clutch (TCC) System-Stuck On
DTC P0751, P0756, or P0761P0751: Shift Solenoid (SS) 1 Valve Performance - Stuck Off P0756: Shift Solenoid (SS) 2 Valve Performance - Stuck Off P0761: Shift Solenoid (SS) 3 Valve Performance - Stuck Off
DTC P0752, P0757, or P0762P0752: Shift Solenoid (SS) 1 Valve Performance - Stuck On P0757: Shift Solenoid (SS) 2 Valve Performance - Stuck On P0762: Shift Solenoid (SS) 3 Valve Performance - Stuck On
DTC P0776 or P0777P0776: Pressure Control (PC) Solenoid 2 - Stuck Off P0777: Pressure Control (PC) Solenoid 2 - Stuck On
DTC P0815, P0816, or P0826P0815: Upshift Switch Circuit P0816: Downshift Switch Circuit P0826: Up and Down Shift Switch Circuit
DTC P0842, P0847, or P0872P0842: Transmission Fluid Pressure (TFP) Switch 1 Circuit Low Voltage P0847: Transmission Fluid Pressure (TFP) Switch 2 Circuit Low Voltage P0872: Transmission Fluid Pressure (TFP) Switch 3 Circuit Low Voltage
DTC P0843, P0848, or P0873P0843: Transmission Pressure Switch 1 Circuit High Voltage P0848: Transmission Pressure Switch 2 Circuit High Voltage P0873: Transmission Pressure Switch 3 Circuit High Voltage
DTC P0877 or P0878P0877: Transmission Fluid Pressure (TFP) Switch 4 Circuit Low Voltage P0878: Transmission Fluid Pressure (TFP) Switch 4 Circuit High Voltage
DTC P0880P0880: Transmission Control Module (TCM) Power Input Circuit
DTC P0881P0881: Transmission Control Module (TCM) Power Input Performance
DTC P0882 or P0883P0882: Transmission Control Module (TCM) Power Input Circuit Low Voltage P0883: Transmission Control Module (TCM) Power Input Circuit High Voltage
DTC P0894P0894: Transmission Component Slipping
DTC P0960, P0962, or P0963P0960: Main Modulation/Line Pressure Control (PC) Solenoid Control Circuit Open P0962: Main Modulation/Line Pressure Control (PC) Solenoid Control Circuit Low Voltage P0963: Main Modulation/Line Pressure Control (PC) Solenoid Control Circuit High Voltage
DTC P0964, P0966, or P0967P0964: Pressure Control (PC) Solenoid 2 Control Circuit Open P0966: Pressure Control (PC) Solenoid 2 Control Circuit Low Voltage P0967: Pressure Control (PC) Solenoid 2 Control Circuit High Voltage
DTC P0972-P0974P0972: Shift Solenoid (SS) 1 Control Circuit Open P0973: Shift Solenoid (SS) 1 Control Circuit Low Voltage P0974: Shift Solenoid (SS) 1 Control Circuit High Voltage
DTC P0975-P0977P0975: Shift Solenoid (SS) 2 Control Circuit Open P0976: Shift Solenoid (SS) 2 Control Circuit Low Voltage P0977: Shift Solenoid (SS) 2 Control Circuit High Voltage
DTC P0979 or P0980P0979: Shift Solenoid (SS) 3 Control Circuit Low Voltage P0980: Shift Solenoid (SS) 3 Control Circuit High Voltage
DTC P1761 or P1762P1761: Up and Down Shift Switch Signal Circuit P1762: Transmission Mode Switch Signal Circuit
DTC P2536P2536: Ignition Accessory Switch Circuit
DTC P2669 or P2670P2669: Solenoid High Control Circuit Group 2 P2670: Solenoid High Control Circuit Group 2 Low Voltage
DTC P2723 or P2724P2723: Pressure Control (PC) Solenoid 1 Stuck Off P2724: Pressure Control (PC) Solenoid 1 Stuck On
DTC P2727, P2729, or P2730P2727: Pressure Control (PC) Solenoid 1 Open P2729: Pressure Control (PC) Solenoid 1 Control Circuit Low Voltage P2730: Pressure Control (PC) Solenoid 1 Control Circuit High Voltage
DTC P2761, P2763, or P2764P2761: Torque Converter Clutch (TCC) Pressure Control (PC) Solenoid Control Circuit P2763: Torque Converter Clutch (TCC) Pressure Control (PC) Solenoid Control Circuit High Voltage P2764: Torque Converter Clutch (TCC) Pressure Control (PC) Solenoid Control Circuit Low Voltage
DTC P2771P2771: Four Wheel Drive (4WD) Switch Circuit

DIAGNOSTIC CODE INDEX

See also:
• DTC P0218
• DTC P0880