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Diagnostic Trouble Code Chart

WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.

Automatic Transmission System 

DIAGNOSTIC TROUBLE CODE CHART

DTC Code Detection Item Trouble Area MIL*1 Memory*2
P0500  Vehicle Speed Sensor "A"
  • Speed sensor (SP2)
  • Transmission wire
  • Harness and connector
  • TCM
Comes on DTC stored
P0502  Vehicle Speed Sensor "A" Circuit Low
  • Speed sensor (SP2)
  • Transmission wire
  • Harness and connector
  • TCM
Comes on DTC stored
P0503  Vehicle Speed Sensor "A" Intermittent/Erratic/High
  • Speed sensor (SP2)
  • Transmission wire
  • Harness and connector
  • TCM
Comes on DTC stored
P0560  System Voltage
  • Back-up power source circuit
  • TCM
Comes on DTC stored
P0617  Starter Relay Circuit High
  • Park/neutral position switch
  • Starter relay circuit
  • Cranking holding function circuit
  • Harness and connector
  • TCM
Comes on DTC stored
P0705  Transmission Range Sensor Circuit Malfunction (PRNDL Input)
  • Open or short in park/neutral position switch circuit
  • Park/neutral position switch
  • TCM
Comes on DTC stored
P0710  Transmission Fluid Temperature Sensor "A" Circuit
  • Open or short in ATF temperature sensor circuit
  • Transmission wire (ATF temperature sensor)
  • TCM
Comes on DTC stored
P0711  Transmission Fluid Temperature Sensor "A" Performance
  • Transmission wire (ATF temperature sensor)
Comes on DTC stored
P0712  Transmission Fluid Temperature Sensor "A" Circuit Low Input
  • Short in ATF temperature sensor circuit
  • Transmission wire (ATF temperature sensor)
  • TCM
Comes on DTC stored
P0713  Transmission Fluid Temperature Sensor "A" Circuit High Input
  • Open in ATF temperature sensor circuit
  • Transmission wire (ATF temperature sensor)
  • TCM
Comes on DTC stored
P0715  Input/Turbine Speed Sensor Circuit Malfunction
  • Speed sensor (NT)
  • Transmission wire
  • Harness and connector
  • TCM
Comes on DTC stored
P0717  Input Speed Sensor Circuit No Signal
  • Speed sensor (NT)
  • Transmission wire
  • Harness and connector
  • TCM
Comes on DTC stored
P0724  Brake Switch "B" Circuit High
  • Stop light switch
  • Short in stop light switch signal circuit
  • TCM
Comes on DTC stored
P0741  Torque Converter Clutch Solenoid Performance (Shift Solenoid Valve SL)
  • Shift solenoid valve SL
  • Shift solenoid valve SLU
  • Valve body assembly
  • Torque converter clutch assembly
  • Automatic transmission assembly
Comes on DTC stored
P0746  Pressure Control Solenoid "A" Performance (Shift Solenoid Valve SL1)
  • Shift solenoid valve SL1
  • Shift solenoid valve SLT
  • Oil pressure switch
  • Valve body assembly
  • Automatic transmission assembly
Comes on DTC stored
P0748  Pressure Control Solenoid "A" Electrical (Shift Solenoid Valve SL1)
  • Shift solenoid valve SL1
  • Transmission wire
  • Harness and connector
  • TCM
Comes on DTC stored
P0771  Shift Solenoid "E" Performance (Shift Solenoid Valve SR)
  • Shift solenoid valve SL2
  • Shift solenoid valve SL3
  • Shift solenoid valve SR
  • Shift solenoid valve SLT
  • Valve body assembly
  • Automatic transmission assembly
Comes on DTC stored
P0776  Pressure Control Solenoid "B" Performance (Shift Solenoid Valve SL2)
  • Shift solenoid valve SL2
  • Shift solenoid valve SR
  • Shift solenoid valve SLT
  • Valve body assembly
  • Automatic transmission assembly
Comes on DTC stored
P0778  Pressure Control Solenoid "B" Electrical (Shift Solenoid Valve SL2)
  • Shift solenoid valve SL2
  • Transmission wire
  • Harness and connector
  • TCM
Comes on DTC stored
P0796  Pressure Control Solenoid "C" Performance (Shift Solenoid Valve SL3)
  • Shift solenoid valve SL3
  • Shift solenoid valve SL4
  • Shift solenoid valve SR
  • Shift solenoid valve SLT
  • Valve body assembly
  • Automatic transmission assembly
Comes on DTC stored
P0798  Pressure Control Solenoid "C" Electrical (Shift Solenoid Valve SL3)
  • Shift solenoid valve SL3
  • Transmission wire
  • Harness and connector
  • TCM
Comes on DTC stored
P0872  Transmission Fluid Pressure Sensor / Switch "C" Circuit Low
  • Oil pressure switch
  • Transmission wire
  • Harness and connector
  • TCM
Comes on DTC stored
P0873  Transmission Fluid Pressure Sensor / Switch "C" Circuit High
  • Shift solenoid valve SL1
  • Oil pressure switch
  • Transmission wire
  • Harness and connector
  • TCM
  • Valve body assembly
  • Automatic transmission assembly
Comes on DTC stored
P0985  Shift Solenoid "E" Control Circuit Low (Shift Solenoid Valve SR)
  • Shift solenoid valve SR
  • Transmission wire
  • Harness and connector
  • TCM
Comes on DTC stored
P0986  Shift Solenoid "E" Control Circuit High (Shift Solenoid Valve SR)
  • Shift solenoid valve SR
  • Transmission wire
  • Harness and connector
  • TCM
Comes on DTC stored
P2714  Pressure Control Solenoid "D" Performance (Shift Solenoid Valve SLT)
  • Shift solenoid valve SL1
  • Shift solenoid valve SL2
  • Shift solenoid valve SL3
  • Shift solenoid valve SL4
  • Shift solenoid valve SL5
  • Shift solenoid valve SLT
  • Valve body assembly
  • Automatic transmission assembly
Comes on DTC stored
P2716  Pressure Control Solenoid "D" Electrical (Shift Solenoid Valve SLT)
  • Shift solenoid valve SLT
  • Transmission wire
  • Harness and connector
  • TCM
Comes on DTC stored
P2757  Torque Converter Clutch Pressure Control Solenoid Performance (Shift Solenoid Valve SLU)
  • Shift solenoid valve SL
  • Shift solenoid valve SLU
  • Valve body assembly
  • Torque converter clutch assembly
  • Automatic transmission assembly
Comes on DTC stored
P2759  Torque Converter Clutch Pressure Control Solenoid Control Circuit Electrical (Shift Solenoid Valve SLU)
  • Shift solenoid valve SLU
  • Transmission wire
  • Harness and connector
  • TCM
Comes on DTC stored
P2765  Input/Turbine Speed Sensor "B" Circuit
  • Speed sensor (NC3)
  • Transmission wire
  • Harness and connector
  • TCM
Comes on DTC stored
P2767  Input/Turbine Speed Sensor "B" Circuit No Signal
  • Speed sensor (NC3)
  • Transmission wire
  • Harness and connector
  • TCM
Comes on DTC stored
P2769  Short in Torque Converter Clutch Solenoid Circuit (Shift Solenoid Valve SL)
  • Shift solenoid valve SL
  • Transmission wire
  • Harness and connector
  • TCM
Comes on DTC stored
P2770  Open in Torque Converter Clutch Solenoid Circuit (Shift Solenoid Valve SL)
  • Shift solenoid valve SL
  • Transmission wire
  • Harness and connector
  • TCM
Comes on DTC stored
P2808  Pressure Control Solenoid "G" Performance (Shift Solenoid Valve SL4)
  • Shift solenoid valve SL4
  • Shift solenoid valve SLT
  • Valve body assembly
  • Automatic transmission assembly
Comes on DTC stored
P2810  Pressure Control Solenoid "G" Electrical (Shift Solenoid Valve SL4)
  • Shift solenoid valve SL4
  • Transmission wire
  • Harness and connector
  • TCM
Comes on DTC stored
P2817  Pressure Control Solenoid "H" Performance or Stuck OFF (Shift Solenoid Valve SL5)
  • Shift solenoid valve SL5
  • Shift solenoid valve SLT
  • Valve body assembly
  • Automatic transmission assembly
Comes on DTC stored
P2819  Pressure Control Solenoid "H" Electrical (Shift Solenoid Valve SL5)
  • Shift solenoid valve SL5
  • Transmission wire
  • Harness and connector
  • TCM
Comes on DTC stored
U0100  Lost Communication with ECM / PCM "A"
  • Harness and connector
  • ECM
  • TCM
Comes on DTC stored
HINT:
  • If a DTC is displayed during the DTC check, check the parts listed in the table below and proceed to the "See" given
  • If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Trouble Area" column of the table
  • *1. "Comes on" means the Malfunction Indicator Lamp (MIL) illuminates
  • *2. "DTC stored" means the TCM memorizes the malfunction code if the TCM detects the DTC detection condition.
  • These DTCs may be output when clutches, brakes, gear components, etc., inside the automatic transmission are damaged.