Chrysler Sebring 2004 Service Manual page 1997

DRIVEABILITY - GAS
P0131-1/1 O2 SENSOR SHORTED TO GROUND —
O2 SENSOR OPERATION
O2 SENSOR SIGNAL CIRCUIT SHORTED TO GROUND
O2 SENSOR SIGNAL CIRCUIT SHORTED TO SENSOR GROUND CIRCUIT
O2 SENSOR SIGNAL SHORTED TO HEATER GROUND CIRCUIT
PCM
TEST
1 Start the engine.
Allow the engine to reach normal operating temperature.
With the DRBIII , read the O2 Sensor voltage.
Is the voltage below 0.06?
Yes → Go To 2
→ Refer to the INTERMITTENT CONDITION symptom in the
No
2 WARNING: WHEN THE ENGINE IS OPERATING, DO NOT STAND IN A
DIRECT LINE WITH THE FAN. DO NOT PUT YOUR HANDS NEAR THE
PULLEYS, BELTS OR FAN. DO NOT WEAR LOOSE CLOTHING.
Start the engine.
Disconnect the O2 Sensor harness connector.
With the DRBIII , monitor the O2 Sensor voltage.
Is the O2 Sensor voltage above 0.06?
Yes → Replace the O2 Sensor.
→ Go To 3
No
3 Turn the ignition off.
Disconnect the O2 Sensor harness connector.
Disconnect the PCM harness connector.
Measure the resistance between ground and the O2 Sensor Signal circuit in the O2
Sensor harness connector.
Is the resistance below 100 ohms?
Yes → Repair the short to ground in the O2 Sensor Signal circuit.
→ Go To 4
No
4 Turn the ignition off.
Disconnect the O2 Sensor harness connector.
Disconnect the PCM harness connector.
Measure the resistance between the O2 Sensor Signal circuit and the Sensor ground
circuit in the O2 Sensor harness connector.
Is the resistance below 100 ohms?
Yes → Repair the short to the Sensor ground circuit in the O2 Sensor
→ Go To 5
No
POSSIBLE CAUSES
ACTION
Driveability category.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
Signal circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
Continued
68
APPLICABILITY
All
All
All
All