2008 Lexus ES 350FACTORY OEM SERVICE PROCEDURE

Diagnostic Trouble Code Chart

If a DTC is displayed during the DTC check, check the parts listed in the table below and proceed to the page given.

TRANSAXLE SYSTEM - DIAGNOSTIC TROUBLE CODE (DTC) CHART

DTC Code Detection Item Trouble Area MIL*1 Memory*2 Refer To
P0500  Vehicle Speed Sensor "A"
  1. Vehicle speed sensor
  2. Vehicle speed sensor signal circuit
  3. Combination meter
  4. TCM
 Comes on DTC stored  
P0560  System Voltage
  1. Open in TCM back-up power source circuit
  2. TCM
 Comes on DTC stored  
P0617  Starter Relay Circuit High
  1. Park/neutral Position (PNP) switch
  2. Starter relay circuit
  3. Cranking holding function circuit
  4. TCM
 Comes on DTC stored  
P0705  Transmission Range Sensor Circuit Malfunction (PRNDL Input)
  1. Short in park/neutral position switch circuit
  2. Park/neutral Position switch
  3. TCM
 Comes on DTC stored  
P0710  Transmission Fluid Temperature Sensor "A" Circuit
  1. Open or short in ATF temperature sensor circuit
  2. Transmission wire
  3. ATF temperature sensor
  4. TCM
 Comes on DTC stored  
P0711  Transmission Fluid Temperature Sensor "A" Performance
  1. Transmission wire
  2. ATF temperature sensor
  3. TCM
 Comes on DTC stored  
P0712  Transmission Fluid Temperature Sensor "A" Circuit Low Input
  1. Transmission wire
  2. ATF temperature sensor
  3. TCM
 Comes on DTC stored  
P0713  Transmission Fluid Temperature Sensor "A" Circuit High Input
  1. Open in ATF temperature sensor circuit
  2. Transmission wire
  3. ATF temperature sensor
  4. TCM
 Comes on DTC stored  
P0715  Input / Turbine Speed Sensor Circuit Malfunction
  1. Transmission revolution sensor (speed sensor NT)
  2. TCM
 Comes on DTC stored  
P0717  Input Speed Sensor Circuit No Signal
  1. Transmission revolution sensor (speed sensor NT)
  2. TCM
 Comes on DTC stored  
P0724  Brake Switch "B" Circuit High
  1. Short in stop light switch signal circuit
  2. Stop light switch
  3. TCM
 Comes on DTC stored  
P0741  Torque Converter Clutch Solenoid Performance (Shift Solenoid Valve SL)
  1. Shift solenoid valve SL remains closed
  2. Valve body is blocked
  3. Torque converter clutch
  4. Automatic transaxle (clutch, brake or gear etc.)
  5. Line pressure is too low
 Comes on DTC stored  
P0746  Pressure Control Solenoid "A" Performance (Shift Solenoid Valve SL1)
  1. Shift solenoid valve SL1 remains open or closed
  2. Valve body is blocked
  3. Automatic transaxle (clutch, brake or gear etc.)
 Comes on DTC stored  
P0748  Pressure Control Solenoid "A" Electrical (Shift Solenoid Valve SL1)
  1. Open or short in shift solenoid valve SL1 circuit
  2. Shift solenoid valve SL1
  3. TCM
 Comes on DTC stored  
P0776  Pressure Control Solenoid "B" Performance (Shift Solenoid Valve SL2)
  1. Shift solenoid valve SL2 remains open or closed
  2. Valve body is blocked
  3. Automatic transaxle (clutch, brake or gear etc)
 Comes on DTC stored  
P0778  Pressure Control Solenoid "B" Electrical (Shift Solenoid Valve SL2)
  1. Open or short in shift solenoid valve SL2 circuit
  2. Shift solenoid valve SL2
  3. TCM
 Comes on DTC stored  
P0791  Intermediate Shaft Speed Sensor "A" Circuit
  1. Transmission revolution sensor (speed sensor NC)
  2. TCM
 Comes on DTC stored  
P0793  Intermediate Shaft Speed Sensor "A"
  1. Transmission revolution sensor (speed sensor NC)
  2. TCM
 Comes on DTC stored  
P0796  Pressure Control Solenoid "C" Performance (Shift Solenoid Valve SL3)
  1. Shift solenoid valve SL3 remains open or closed.
  2. Valve body is blocked.
  3. Automatic transaxle (clutch, brake or gear etc)
 Comes on DTC stored  
P0798  Pressure Control Solenoid "C" Electrical (Shift Solenoid Valve SL3)
  1. Open or short in shift solenoid valve SL3 circuit
  2. Shift solenoid valve SL3
  3. TCM
 Comes on DTC stored  
P0872  Transmission Fluid Pressure Sensor/ Switch "C" Circuit Low
  1. ATF temperatuer sensor assembly (ATF pressure switch No. 1)
  2. Transmission wire
  3. TCM
 - DTC stored  
P0873  Transmission Fluid Pressure Sensor / Switch "C" Circuit High
  1. ATF temperatuer sensor assembly (ATF pressure switch No 1)
  2. Transmission wire
  3. TCM
 - DTC stored  
P0877  Transmission Fluid Pressure Sensor / Switch "D" Circuit Low
  1. ATF temperatuer sensor assembly (ATF pressure switch No 2)
  2. Transmission wire
  3. TCM
 - DTC stored  
P0878  Transmission Fluid Pressure Sensor/Switch "D" Circuit High
  1. ATF temperatuer sensor assembly (ATF pressure switch No. 2)
  2. Transmission wire
  3. TCM
 - DTC stored  
P0989  Transmission Fluid Pressure Sensor / Switch "E" Circuit Low
  1. ATF temperatuer sensor assembly (ATF pressure switch No. 3)
  2. Transmission wire
  3. TCM
 Comes on DTC stored  
P0990  Transmission Fluid Pressure Sensor / Switch "E" Circuit High
  1. ATF temperatuer sensor assembly (ATF pressure switch No. 3)
  2. Transmission wire
  3. TCM
 Comes on DTC stored  
P2714  Pressure Control Solenoid "D" Performance (Shift Solenoid Valve SLT)
  1. Shift solenoid valve SLT remains open
  2. Shift solenoid valve SL1, SL2, SL3 or SL4 remains open or closed
  3. Valve body is blocked
  4. Torque converter clutch
  5. Automatic transaxle (clutch, brake or gear, etc)
 Comes on DTC stored  
P2716  Pressure Control Solenoid "D" Electrical (Shift Solenoid Valve SLT)
  1. Open or short in shift solenoid valve SLT circuit
  2. Shift solenoid valve SLT
  3. TCM
 Comes on DTC stored  
P2757  Torque Converter Clutch Pressure Control Solenoid Performance (Shift Solenoid Valve SLU)
  1. Shift solenoid valve SLU remains open or closed
  2. Valve body is blocked
  3. Torque converter clutch
  4. Automatic transaxle (clutch, brake or gear, etc.)
  5. Line pressure is too low
 Comes on DTC stored  
P2759  Torque Converter Clutch Pressure Control Solenoid Control Circuit Electrical (Shift Solenoid Valve SLU)
  1. Open or short in shift solenoid valve SLU circuit
  2. Shift solenoid valve SLU
  3. TCM
 Comes on DTC stored  
P2769  Short in Torque Converter Clutch Solenoid Circuit (Shift Solenoid Valve SL)
  1. Short in shift solenoid valve SL circuit
  2. Shift solenoid valve SL
  3. TCM
 Comes on DTC stored  
P2770  Open in Torque Converter Clutch Solenoid Circuit (Shift Solenoid Valve SL)
  1. Open in shift solenoid valve SL circuit
  2. Shift solenoid valve SL
  3. TCM
 Comes on DTC stored  
P2808  Pressure Control Solenoid "G" Performance (Shift Solenoid Valve SL4)
  1. Shift Solenoid valve SL4 remains open or closed
  2. Valve body is blocked
  3. Automatic transaxle (clutch, brake or gear etc)
 Comes on DTC stored  
P2810  Pressure Control Solenoid "G" Electrical (Shift Solenoid Valve SL4)
  1. Open or short in shift solenoid valve SL4 circuit
  2. Shift solenoid valve SL4
  3. TCM
 Comes on DTC stored  
U0100  Lost Communication with ECM / PCM "A" TCM Comes on DTC stored  
HINT:
  • *1: MIL (Malfunction Indicator Lamp) comes on.
  • *2: "DTC stored" mark means TCM memorizes the trouble code if the TCM detects that the DTC detection condition is satisfied.
  • A DTC may be output when the clutch, brake and gear components, etc. inside the automatic transaxle are damaged.
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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.

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