GM Service Manual Online
For 1990-2009 cars only

Heated Oxygen Sensor (HO2S) Fuse and Relay

Heated Oxygen Sensor Fuse and Relay


Object Number: 737461  Size: FS
Master Electrical Component List
Heated Oxygen Sensors (HO2S)
Crankshaft Position (CKP) Sensor, Camshaft Position (CMP) Sensor, Knock Sensor (KS)
OBD II Symbol Description Notice
H/L, L, H/L, R, HTR, IG, LAMP Fuses
Ignition Switch
G104
CIG, DEF, P/W Fuses
H/L, L, H/L, R, HTR, IG, LAMP Fuses