FixVault

DTC Detection Logic

NOTE: DTC P1148 is displayed with DTC for A/F sensor 1.

When the DTC is detected, perform the trouble diagnosis of DTC corresponding to A/F sensor 1.

DTC

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

P1148

CLOSED LOOP-B1

(Closed loop control function)

Diagnosis condition

-

Signal (terminal)

-

Threshold

The closed loop control function does not operate even when vehicle is being driven in the specified condition.

Diagnosis delay time

-