As of my last update in September 2021, Lexus vehicles also use a set of diagnostic trouble codes (DTCs) to identify potential issues with various systems in the car. Lexus, being the luxury vehicle division of Toyota, typically uses advanced diagnostic systems to assist in diagnosing and troubleshooting problems. The specific codes can vary based on the Lexus model, year, and the type of diagnostic system used. Here are some common Lexus diagnostic trouble codes:
1. P0101 - Mass or Volume Air Flow Circuit Range/Performance Problem
2. P0171 - System Too Lean (Bank 1)
3. P0172 - System Too Rich (Bank 1)
4. P0300 - Random/Multiple Cylinder Misfire Detected
5. P0301 - Cylinder 1 Misfire Detected
6. P0302 - Cylinder 2 Misfire Detected
7. P0303 - Cylinder 3 Misfire Detected
8. P0304 - Cylinder 4 Misfire Detected
9. P0420 - Catalyst System Efficiency Below Threshold (Bank 1)
10. P0430 - Catalyst System Efficiency Below Threshold (Bank 2)
11. P0442 - Evaporative Emission System Leak Detected (Small Leak)
12. P0455 - Evaporative Emission System Leak Detected (Gross Leak)
13. P0507 - Idle Control System RPM Higher Than Expected
14. P1111 - Intake Valve Timing Control Solenoid Valve Circuit Bank 1
15. P1112 - Intake Valve Timing Control Solenoid Valve Circuit Bank 2
16. P1120 - Accelerator Pedal Position Sensor Circuit
17. P1121 - Accelerator Pedal Position Sensor Range/Performance Problem
18. P1122 - Accelerator Pedal Position Sensor Signal Malfunction
19. P1126 - Magnetic Clutch Circuit
20. P1130 - Air/Fuel Ratio Sensor Circuit Range/Performance Malfunction (Bank 1 Sensor 1)
21. P1133 - Air/Fuel Ratio Sensor Circuit Response Malfunction (Bank 1 Sensor 1)
22. P1135 - Air/Fuel Ratio Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)
23. P1200 - Fuel Pump Relay Circuit Problem
24. P1300 - Igniter Circuit Malfunction No. 1
25. P1305 - Igniter Circuit Malfunction No. 2
26. P1310 - Igniter Circuit Malfunction No. 3
27. P1315 - Igniter Circuit Malfunction No. 4
28. P1320 - Ignition Signal
29. P1335 - Crankshaft Position Sensor (Ref) Signal
30. P1354 - Variable Valve Timing System Fault Bank 1
Please note that the specific diagnostic trouble codes can vary based on the Lexus model and the software version of the diagnostic system used. If you encounter any of these diagnostic codes on your Lexus vehicle, it is recommended to have a qualified mechanic or Lexus dealership diagnose and address the specific issue. Using professional diagnostic equipment ensures accurate readings and appropriate repairs.
