Dodge ZB 2005 Service Manual page 1187

DRIVEABILITY - GAS
Symptom List:
P0135-O2 SENSOR 1/1 HEATER FAILURE
P0141-O2 SENSOR 1/2 HEATER FAILURE
P0155-O2 SENSOR 2/1 HEATER FAILURE
P0161-O2 SENSOR 2/2 HEATER FAILURE
Test Note: All symptoms listed above are diagnosed using the same tests.
The title for the tests will be P0135-O2 SENSOR 1/1 HEATER
FAILURE.
When Monitored and Set Condition:
P0135-O2 SENSOR 1/1 HEATER FAILURE
When Monitored: With battery voltage greater than 9 volts, at a cold start, ECT less than
147°F, battery temperature sensor equal to or less than 27°F, and engine at idle for at least
12 seconds.
Set Condition: O2 sensor voltage greater than 3 volts for 30 to 90 seconds.
P0141-O2 SENSOR 1/2 HEATER FAILURE
When Monitored: With battery voltage greater than 10.5 volts, at a cold start, ECT less
than 147°F, battery temperature sensor equal to or less than 27°F, and engine at idle for
at least 12 seconds.
Set Condition: O2 sensor voltage greater than 3 volts for 60 to 240 seconds.
P0155-O2 SENSOR 2/1 HEATER FAILURE
When Monitored: With battery voltage greater than 9 volts, at a cold start, ECT less than
147°F, battery temperature sensor equal to or less than 27°F, and engine at idle for at least
12 seconds.
Set Condition: O2 sensor voltage greater than 3 volts for 60 to 240 seconds.
P0161-O2 SENSOR 2/2 HEATER FAILURE
When Monitored: With battery voltage greater than 10.5 volts, at a cold start, ECT less
than 147°F, battery temperature sensor equal to or less than 27°F, and engine at idle for
at least 12 seconds.
Set Condition: O2 sensor voltage greater than 3 volts for 60 to 240 seconds.
O2 SENSOR HEATER OPERATION
O2 HEATER ELEMENT
O2 HEATER SUPPLY CIRCUIT OPEN
HEATER CONTROL CIRCUIT OPEN
POSSIBLE CAUSES
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