Chrysler Concorde 2004 Service Manual page 692

DRIVEABILITY - NGC
Symptom List:
P0031-O2 SENSOR 1/1 HEATER CIRCUIT LOW
P0037-O2 SENSOR 1/2 HEATER CIRCUIT LOW
P0051-O2 SENSOR 2/1 HEATER CIRCUIT LOW
P0057-O2 SENSOR 2/2 HEATER CIRCUIT LOW
Test Note: All symptoms listed above are diagnosed using the same tests.
The title for the tests will be P0031-O2 SENSOR 1/1 HEATER
CIRCUIT LOW.
When Monitored and Set Condition:
P0031-O2 SENSOR 1/1 HEATER CIRCUIT LOW
When Monitored: Battery voltage above 10.6 volts, ASD is powered up, and O2 heater is
on.
Set Condition: The PCM detects the O2 Heater voltage is out of acceptable range. Below
0.0926 of a volt. One Trip Fault.
P0037-O2 SENSOR 1/2 HEATER CIRCUIT LOW
When Monitored: Battery voltage above 10.6 volts, ASD is powered up, and O2 heater is
on.
Set Condition: The PCM detects the O2 Heater voltage is out of acceptable range. Below
0.0926 of a volt. One Trip Fault.
P0051-O2 SENSOR 2/1 HEATER CIRCUIT LOW
When Monitored: Battery voltage above 10.6 volts, ASD is powered up, and O2 heater is
on.
Set Condition: The PCM detects the O2 Heater voltage is out of acceptable range. Below
0.0926 of a volt. One Trip Fault.
P0057-O2 SENSOR 2/2 HEATER CIRCUIT LOW
When Monitored: Battery voltage above 10.6 volts, ASD is powered up, and O2 heater is
on.
Set Condition: The PCM detects the O2 Heater voltage is out of acceptable range. Below
0.0926 of a volt. One Trip Fault.
O2 SENSOR HEATER OPERATION
O2 HEATER ELEMENT
O2 HEATER CONTROL CIRCUIT
O2 HEATER CONTROL SHORTED TO GROUND
POSSIBLE CAUSES
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