What does engine code p152 mean? I have a 2001 Jeep grand cherokee on 2001 Jeep Grand Cherokee

Just started this morning, doesn't seem like there is anything wrong, but the check engine light came on.

1 answer
SYMPTOM
P0152-2/1 O2 SENSOR SHORTED TO VOLTAGE

TEST NOTE
This symptom is diagnosed using the test P0132-1/1 O2 SENSOR SHORTED TO VOLTAGE.

WHEN MONITORED
With battery voltage greater than 10.4 volts , engine running for more than 4 minutes and coolant temperature above 180 °F .

SET CONDITION
The oxygen sensor voltage is above 1.5 volts .

POSSIBLE CAUSES
Intermittent condition
O2 sensor operation
O2 sensor signal shorted to voltage
O2 sensor signal circuit shorted to O2 heater relay output circuit
O2 sensor signal open
O2 sensor ground circuit open
PCM