Lexus IS250 IS220d GSE20 ALE20 2AD-FHV ENGINE CONTROL SYSTEM


ECD SYSTEM - INITIALIZATION

CATALYST RECORD OF DPNR THERMAL DETERIORATION CLEAR FUNCTION
  • HINT:
  • When a DPNR catalyst is replaced, the catalyst record of DPNR thermal deterioration stored in the ECM must be cleared.

Connect the intelligent tester to the DLC3.

Turn the engine switch ON (IG).

Turn the tester ON.

Ecd System - Initialization. 2AD-FHV ENGINE CONTROL SYSTEM. Lexus IS250 IS220d GSE20 ALE20

Enter the menu options in this order: Powertrain / Engine / Utility / Catalyst Record Clear.

Press "Next".

Ecd System - Initialization. 2AD-FHV ENGINE CONTROL SYSTEM. Lexus IS250 IS220d GSE20 ALE20

Press "Exit".

SUPPLY PUMP INITIALIZATION PROCEDURE
  • HINT:
  • After replacing the supply pump and/or the ECM:
If the engine is defective or stalls immediately after startup, the ECM's learned values must be initialized. The engine can be initialized through the intelligent tester or by short circuiting DLC3 terminals.
If the engine starts normally, initialization is not necessary. Perform steps (See procedure "A") and (See procedure "B") only.
Ecd System - Initialization. 2AD-FHV ENGINE CONTROL SYSTEM. Lexus IS250 IS220d GSE20 ALE20

Connect the intelligent tester to the DLC3.

Turn the engine switch ON (IG).

  • NOTICE:
  • Do not start the engine.

Turn the intelligent tester ON.

Enter the following menus: Powertrain / Engine / Utility / Supply Pump Initialization.

Press "Next".

Ecd System - Initialization. 2AD-FHV ENGINE CONTROL SYSTEM. Lexus IS250 IS220d GSE20 ALE20

Press "Next".

Ecd System - Initialization. 2AD-FHV ENGINE CONTROL SYSTEM. Lexus IS250 IS220d GSE20 ALE20

Press "Exit".

Start the engine to check if the initialization is complete. If the engine cannot be started, repeat the initialization procedures from the beginning (Procedure "A").

Idle the engine for at least 1 minute under the following conditions (Procedure "B"):

The water temperature is 60°C (140°F) or more.
The fuel temperature is 20°C (68°F) or more.
  • NOTICE:
  • Do not race the engine immediately after starting the engine. After warming up the engine, racing the engine is acceptable.
  • HINT:
The water temperature can be estimated by touching the outlet hose.
The fuel temperature can be estimated by using the ambient temperature as a substitute.
If the water temperature is difficult to estimate, use the intelligent tester and enter the following menus: Powertrain / Engine / Data List / Coolant Temp.

Initialization is complete.

LEXUS IS250, IS220d / GSE20 ALE20
2AD-FHV ENGINE CONTROL SYSTEM
Lexus IS250 IS220d GSE20 ALE20
ECD SYSTEM