P0138 Heated Oxygen Sensor Circuit High Voltage (bank 1, sensor 2)
Right Bank Heated Oxygen Sensor (rear) Circuit
DTC SET CONDITIONS
Check Conditions
2 seconds or more have passed since the starting sequence was completed.
Judgment Criteria
Right bank heated oxygen sensor (rear) output voltage has continued to be 1.2 volts or higher for 2 seconds.
TROUBLESHOOTING HINTS
The most likely causes for this code to be set are:
- Short circuit in right bank heated oxygen sensor (rear) ground line.
- PCM failed.
Right Bank Heated Oxygen Sensor (rear) Circuit
DTC SET CONDITIONS
Check Conditions
2 seconds or more have passed since the starting sequence was completed.
Judgment Criteria
Right bank heated oxygen sensor (rear) output voltage has continued to be 1.2 volts or higher for 2 seconds.
TROUBLESHOOTING HINTS
The most likely causes for this code to be set are:
- Short circuit in right bank heated oxygen sensor (rear) ground line.
- PCM failed.