Diagnostic Code Index

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2008 GMC Yukon XL, 2008 GMC Yukon, 2008 Chevrolet Tahoe, 2008 Chevrolet Suburban, and 2008 Cadillac Escalade EXT. However, it is still accessible from the selected car via links, so may be relevant.

DIAGNOSTIC CODE INDEX

DTC	Description
DTC P0218	P0218: Transmission Fluid Overtemperature
DTC P0562 or P0563	P0562: System Voltage Low P0563: System Voltage High
DTC P0601, P0602, P0603, P0604, or P1621	P0601: Transmission Control Module (TCM) Read Only Memory (ROM) P0602: Transmission Control Module (TCM) Not Programmed P0603: Transmission Control Module (TCM) Long Term Memory Reset P0604: Transmission Control Module (TCM) Random Access Memory (RAM) P1621: Transmission Control Module (TCM) Long Term Memory Performance
DTC P0634	P0634: Transmission Control Module (TCM) Overtemperature
DTC P0667, P0668, or P0669	P0667: Transmission Control Module (TCM) Temperature Sensor Performance P0668: Transmission Control Module (TCM) Temperature Sensor Circuit Low Voltage P0669: Transmission Control Module (TCM) Temperature Sensor Circuit High Voltage
DTC P0711	P0711: Transmission Fluid Temperature (TFT) Sensor Performance
DTC P0712 or P0713	P0712: Transmission Fluid Temperature (TFT) Sensor Circuit Low Voltage P0713: Transmission Fluid Temperature (TFT) Sensor Circuit High Voltage
DTC P0716 or P0717	P0716: Input Speed Sensor Performance P0717: Input Speed Sensor Circuit Low Voltage
DTC P0719 or P0724	P0719: Brake Switch Circuit Low Voltage P0724: Brake Switch Circuit High Voltage
DTC P0722 or P0723	P0722: Output Speed Sensor (OSS) Circuit Low Voltage P0723: Output Speed Sensor (OSS) Intermittent
DTC P0736	P0736: Incorrect Reverse Ratio
DTC P0741 or P0742	P0741: Torque Converter Clutch (TCC) - Stuck Off P0742: Torque Converter Clutch (TCC) - Stuck On
DTC P0751	P0751: Shift Solenoid (SS) 1 Valve Performance - Stuck Off
DTC P0752	P0752: Shift Solenoid (SS) 1 Valve Performance - Stuck On
DTC P0756	P0756: Shift Solenoid (SS) 2 Valve Performance - Stuck Off
DTC P0776 or P0777	P0776: Clutch Pressure Control (PC) Solenoid 2 - Stuck Off P0777: Clutch Pressure Control (PC) Solenoid 2 - Stuck On
DTC P0796 or P0797	P0796: Clutch Pressure Control (PC) Solenoid 3 - Stuck Off P0797: Clutch Pressure Control (PC) Solenoid 3 - Stuck On
DTC P0815, P0816, or P0826	P0815: Upshift Switch Circuit P0816: Downshift Switch Circuit P0826: Up and Down Shift Switch Circuit
DTC P0842 or P0843	P0842: Transmission Fluid Pressure (TFP) Switch 1 Circuit Low Voltage P0843: Transmission Fluid Pressure (TFP) Switch 1 Circuit High Voltage
DTC P0851 or P0852	P0851: Park/Neutral Position (PNP) Switch Circuit Low Voltage P0852: Park/Neutral Position (PNP) Switch Circuit High Voltage
DTC P0872 or P0873	P0872: Transmission Fluid Pressure (TFP) Switch 3 Circuit Low Voltage P0873: Transmission Fluid Pressure (TFP) Switch 3 Circuit High Voltage
DTC P0877 or P0878	P0877: Transmission Fluid Pressure (TFP) Switch 4 Circuit Low Voltage P0878: Transmission Fluid Pressure (TFP) Switch 4 Circuit High Voltage
DTC P0961, P0962 or P0963	P0961: Line Pressure Control (PC) Solenoid System Performance P0962: Line Pressure Control (PC) Solenoid Control Circuit Low Voltage P0963: Line Pressure Control (PC) Solenoid Control Circuit High Voltage
DTC P0965, P0966 or P0967	P0965: Clutch Pressure Control (PC) Solenoid 2 System Performance P0966: Clutch Pressure Control (PC) Solenoid 2 Control Circuit Low Voltage P0967: Clutch Pressure Control (PC) Solenoid 2 Control Circuit High Voltage
DTC P0969, P0970 or P0971	P0969: Clutch Pressure Control (PC) Solenoid 3 System Performance P0970: Clutch Pressure Control (PC) Solenoid 3 Control Circuit Low Voltage P0971: Clutch Pressure Control (PC) Solenoid 3 Control Circuit High Voltage
DTC P0973 or P0974	P0973: Shift Solenoid (SS) 1 Control Circuit Low Voltage P0974: Shift Solenoid (SS) 1 Control Circuit High Voltage
DTC P0976 or P0977	P0976: Shift Solenoid (SS) 2 Control Circuit Low Voltage P0977: Shift Solenoid (SS) 2 Control Circuit High Voltage
DTC P0989 or P0990	P0989: Transmission Fluid Pressure (TFP) Switch 5 Circuit Low Voltage P0990: Transmission Fluid Pressure (TFP) Switch 5 Circuit High Voltage
DTC P1684, P1685 or P1686	P1684: Transmission Control Module (TCM) Power Up Temperature Sensor Performance P1685: Transmission Control Module (TCM) Power Up Temperature Sensor Circuit Low Voltage P1686: Transmission Control Module (TCM) Power Up Temperature Sensor Circuit High Voltage
DTC P1751	P1751: Shift Valve 1 Performance
DTC P1825 or P1915	P1825: Internal Mode Switch - Invalid Range P1915: Internal Mode Switch Does Not Indicate Park/Neutral (P/N) During Start
DTC P1831 or P1832	P1831: Pressure Control (PC)/Shift Lock Solenoid Control Circuit Low Voltage P1832: Pressure Control (PC)/Shift Lock Solenoid Control Circuit High Voltage
DTC P2534	P2534: Ignition 1 Switch Circuit Low Voltage
DTC P2714 or P2715	P2714: Clutch Pressure Control (PC) Solenoid 4 - Stuck Off P2715: Clutch Pressure Control (PC) Solenoid 4 - Stuck On
DTC P2719, P2720 or P2721	P2719: Clutch Pressure Control (PC) Solenoid 4 System Performance P2720: Clutch Pressure Control (PC) Solenoid 4 Control Circuit Low Voltage P2721: Clutch Pressure Control (PC) Solenoid 4 Control Circuit High Voltage
DTC P2723 or P2724	P2723: Clutch Pressure Control (PC) Solenoid 5 - Stuck Off P2724: Clutch Pressure Control (PC) Solenoid 5 - Stuck On
DTC P2728, P2729 or P2730	P2728: Clutch Pressure Control (PC) Solenoid 5 System Performance P2729: Clutch Pressure Control (PC) Solenoid 5 Control Circuit Low Voltage P2730: Clutch Pressure Control (PC) Solenoid 5 Control Circuit High Voltage
DTC P2762, P2763, or P2764	P2762: Torque Converter Clutch (TCC) Pressure Control Solenoid System Performance P2763: Torque Converter Clutch (TCC) Pressure Control Solenoid Control Circuit High Voltage P2764: Torque Converter Clutch (TCC) Pressure Control Solenoid Control Circuit Low Voltage