DTC 48

Check Engine Light indicates trouble code 48:
Most likely a problem in the Heated Oxygen Sensor (HO2S).

The Check Engine warning light may come on, indicating a system problem, when, in fact, there is a poor or intermittent electrical connection. First, check the electrical connections, clean or repair connections if necessary.

SYSTEM INSPECTION

DTC 48: Heated Oxygen Sensor (HO2S) (Part 1 Of 5):

DTC 48: Heated Oxygen Sensor (HO2S) (Part 2 Of 5):

DTC 48: Heated Oxygen Sensor (HO2S) (Part 3 Of 5):

DTC 48: Heated Oxygen Sensor (HO2S) (Part 4 Of 5):

DTC 48: Heated Oxygen Sensor (HO2S) (Part 5 Of 5):

WIRE HARNESS OPEN CHECK

Wire Harness Short Check:

WIRE HARNESS SHORT CHECK

Wire Harness Open Check: