Inspection Procedure

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

CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0111)

Connect Techstream to the DLC3.
Turn the power switch ON (IG).
Turn the tester on.
Select the following menu items: Powertrain / Engine and ECT / Trouble Codes.

Read DTCs.

Result

RESULT CHART

Result	Proceed to
P0111 and other DTCs	A
P0111	B

HINT:

If any DTCs other than P0111 are output, troubleshoot those DTCs first.

B: REPLACE MASS AIR FLOW METER (See ON-VEHICLE INSPECTION )

A: GO TO DIAGNOSTIC TROUBLE CODE CHART