CHECK CURRENT DATA.

1) Read the data of “Catalyst Temperature #12” using the Subaru Select Monitor or a general scan tool.

NOTE:

• Subaru Select Monitor

For detailed operation procedures, refer to “READ CURRENT DATA FOR ENGINE”.

• General scan tool

For detailed operation procedures, refer to the general scan tool operation manual.

2) Start the engine and race it several times so that the engine speed exceeds 3,000 rpm.

QUESTION
Does the data of “Catalyst Temperature #12” change?
Yes	No
Even if DTC is detected, the circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again. NOTE: In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.