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Home >> Jeep >> 2021 >> Grand Cherokee L Laredo, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 15 (5.7L - DTCS P0132 To P025A) >> DTC Troubleshooting >> P0152-O2 Sensor 2/1 Circuit High >> Possible Causes

Possible Causes

WARNING: This page is about a different variant/trim than selected.
Possible Causes
O2 SENSOR 2/1 HEATER CONTROL CIRCUIT SHORTED TO VOLTAGE
O2 SENSOR 2/1 HEATER CONTROL CIRCUIT SHORTED TO GROUND
O2 SENSOR 2/1 HEATER CONTROL CIRCUIT OPEN/HIGH RESISTANCE
O2 SENSOR 2/1 HEATER GROUND CIRCUIT OPEN/HIGH RESISTANCE
O2 SENSOR 2/1 SIGNAL CIRCUIT SHORTED TO VOLTAGE
O2 SENSOR 2/1 SIGNAL CIRCUIT OPEN/HIGH RESISTANCE
O2 SENSOR 2/1 RETURN CIRCUIT OPEN/HIGH RESISTANCE
O2 SENSOR 2/1
POWERTRAIN CONTROL MODULE (PCM)

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .