Waveform 4

WARNING: This page is about a different variant/trim than selected.

Fig 1: Waveform 4

Courtesy of SUBARU OF AMERICA, INC.

Measured terminal	Front oxygen (A/F) sensor RH heater signal (E158) No. 5 (+) - Engine ground 3 (E158) No. 63:
	Front oxygen (A/F) sensor LH heater signal (E158) No. 4 (+) - Engine ground 3 (E158) No. 63:
	Rear oxygen sensor RH heater signal (E158) No. 10 (+) - Engine ground 3 (E158) No. 63:
	Rear oxygen sensor LH heater signal (E158) No. 11 (+) - Engine ground 3 (E158) No. 63:
Measuring condition	While engine idling