Inspection Procedure

WARNING: This page is about a different car, the 2009 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.

CHECK ENGINE CONTROL SYSTEM

Check if the engine control system DTC is output (See DTC CHECK / CLEAR for 2AZ-FE, or DTC CHECK / CLEAR for 2ZR-FE).

Result

RESULT CHART

Result	Proceed to
DTC is not output (for 2AZ-FE)	A
DTC is not output (for 2ZR-FE)	B
DTC is output (for 2AZ-FE)	C
DTC is output (for 2ZR-FE)	D

B: REPLACE ECM (for 2ZR-FE) (See REMOVAL )

C: INSPECT ENGINE CONTROL SYSTEM (for 2AZ-FE) (See DIAGNOSTIC TROUBLE CODE CHART )

D: INSPECT ENGINE CONTROL SYSTEM (for 2ZR-FE) (See DIAGNOSTIC TROUBLE CODE CHART )

A: REPLACE ECM (for 2AZ-FE) (See REMOVAL )