DTC P0A0F-204: Engine Failed to Start; DTC P0A0F-205: Engine Failed to Start; DTC P0A0F-206: Engine Failed to Start; DTC P0A0F-524: Engine Failed to Start; DTC P0A0F-525: Engine Failed to Start [08/2013 - ]: Procedure

WARNING: This page is about a different car, the 2014 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.

CHECK DTC OUTPUT (ENGINE AND ECT)

Connect the Techstream to the DLC3.
Turn the power switch on (IG).
Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.

Check for DTCs.

Result

Result	Proceed to
SFI system DTCs are not output.	A
SFI system DTCs are output.	B

HINT:

If P0A0F-204, 205, 206, 524, or 525 is output even though the ECM has not detected a malfunction, there is a malfunction in the power management control ECU.

Turn the power switch off.

B → See step 2

A → See step 3

GO TO DTC CHART (SFI SYSTEM). Refer to DIAGNOSTIC TROUBLE CODE CHART [08/2013 - ]
REPLACE POWER MANAGEMENT CONTROL ECU. Refer to COMPONENTS [08/2013 - ]