Dodge ZB 2005 Service Manual page 1144

Symptom List:
P0031-O2 SENSOR 1/1 HEATER CIRCUIT LOW
P0032-O2 SENSOR 1/1 HEATER CIRCUIT HIGH
P0051-O2 SENSOR 2/1 HEATER CIRCUIT LOW
P0052-O2 SENSOR 2/1 HEATER CIRCUIT HIGH
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: Desired state does not match Actual state.
P0032-O2 SENSOR 1/1 HEATER CIRCUIT HIGH
When Monitored: Battery voltage above 10.6 volts, ASD is powered up, and O2 heater is
off.
Set Condition: Desired state does not equal Actual state.
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: Desired state does not equal Actual state.
P0052-O2 SENSOR 2/1 HEATER CIRCUIT HIGH
When Monitored: Battery voltage above 10.6 volts, ASD is powered up, and O2 heater is
off.
Set Condition: Desired state does not equal Actual state.
O2 HEATER TEST
O2 SENSOR HEATER ELEMENT
(K342) FUSED ASD RELAY OUTPUT CIRCUIT
HEATER CONTROL CIRCUIT OPEN
HEATER CONTROL CIRCUIT SHORTED TO GROUND
PCM
POSSIBLE CAUSES
23
DRIVEABILITY - GAS