Chrysler Concorde 2004 Service Manual page 694

DRIVEABILITY - NGC
P0031-O2 SENSOR 1/1 HEATER CIRCUIT LOW —
TEST
5 Turn the ignition off.
Disconnect the O2 Sensor harness connector.
Disconnect the PCM harness connector.
Measure the resistance between ground and the O2 Heater Control circuit in the O2
Sensor harness connector.
Is the resistance below 5.0 ohms?
Yes → Repair the short to ground in the O2 Sensor Heater Control
→ NOTE: Before continuing, check the PCM harness connector
No
ACTION
circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
terminals for corrosion, damage, or terminal push out. Repair as
necessary. Replace and program the Powertrain Control Module
in accordance with the Service Information.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
Continued
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APPLICABILITY
All