Chrysler 300M 2002 Service Manual page 2520

Symptom List:
P0131-O2 SENSOR 1/1 VOLTAGE LOW
P0137-O2 SENSOR 1/2 VOLTAGE LOW
P0151-O2 SENSOR 2/1 VOLTAGE LOW
P0157-O2 SENSOR 2/2 VOLTAGE LOW
Test Note: All symptoms listed above are diagnosed using the same tests.
The title for the tests will be P0131-O2 SENSOR 1/1 VOLTAGE
LOW.
When Monitored and Set Condition:
P0131-O2 SENSOR 1/1 VOLTAGE LOW
When Monitored: Engine Running for less than 30 seconds. O2 Sensor Heater Temper-
ature less than 251°C (484°F) Battery voltage greater than 10.99 volts.
Set Condition: The oxygen sensor signal voltage is below 2.5196 volts for 3 seconds. One
trip Fault.
P0137-O2 SENSOR 1/2 VOLTAGE LOW
When Monitored: Engine Running for less than 30 seconds. O2 Sensor Heater Temper-
ature less than 251°C (484°F) Battery voltage greater than 10.99 volts.
Set Condition: The oxygen sensor signal voltage is below 2.5196 volts for 3 seconds. One
trip Fault.
P0151-O2 SENSOR 2/1 VOLTAGE LOW
When Monitored: Engine Running for less than 30 seconds. O2 Sensor Heater Temper-
ature less than 251°C (484°F) Battery voltage greater than 10.99 volts.
Set Condition: The oxygen sensor signal voltage is below 2.5196 volts for 3 seconds. One
trip Fault.
P0157-O2 SENSOR 2/2 VOLTAGE LOW
When Monitored: Engine Running for less than 30 seconds. O2 Sensor Heater Temper-
ature less than 251°C (484°F) Battery voltage greater than 10.99 volts.
Set Condition: The oxygen sensor signal voltage is below 2.5196 volts for 3 seconds. One
trip Fault.
INTERMITTENT CONDITION
O2 SENSOR
O2 SENSOR RETURN CIRCUIT SHORTED TO GROUND
O2 SENSOR SIGNAL CIRCUIT SHORTED TO GROUND
POSSIBLE CAUSES
91
DRIVEABILITY - NGC