Chrysler Concorde 2004 Service Manual page 696

DRIVEABILITY - NGC
P0032-O2 SENSOR 1/1 HEATER CIRCUIT HIGH —
TEST
1 Ignition on, engine not running.
With the DRBIII , read DTCs and record the related Freeze Frame data.
Is the Good Trip Counter displayed and equal to zero?
Yes → Go To 3
→ Go To 2
No
2 Turn the ignition off.
NOTE: Allow the O2 Sensor to cool down before continuing the test. The O2
Sensor voltage should stabilize at 5.0 volts. Raising the hood may help in
reducing under hood temps quicker.
Ignition on, engine not running.
With the DRBIII , actuate the O2 Heater Test.
With the DRBIII , monitor O2 Sensor voltage for at least 2 minutes.
Does the O2 Sensor voltage stay above 4.5 volts?
Yes → Go To 3
→ Refer to the INTERMITTENT CONDITION symptom in the
No
3 Turn the ignition off.
NOTE: Allow the O2 sensor to cool down to room temperature.
Disconnect the O2 Sensor harness connector.
Measure the resistance across the O2 Sensor Heater element component side.
NOTE: Heater Resistance Specification: 1/1 and 2/1 = 3.3 to 4.5 ohms or 1/2
and 2/2 = 4.05 to 5.4 ohms.
Is the O2 Sensor Heater element within specification?
Yes → Go To 4
→ Replace the O2 Sensor.
No
4 Turn the ignition off.
Disconnect the O2 Sensor harness connector.
Ignition on, engine not running.
With the DRBIII , actuate the O2 Heater Test.
Using a 12-volt test light connected to ground, probe the O2 Heater Control circuit in
the O2 Sensor harness connector.
Does the test illuminate brightly and flash on and off?
Yes → Go To 5
→ Go To 6
No
5 Turn the ignition off.
Disconnect the O2 Sensor harness connector.
Measure the resistance between engine ground and the O2 Heater ground circuit in
the O2 Sensor harness connector.
Is the resistance below 5.0 ohms?
Yes → Replace the O2 Sensor.
→ Repair the open in the O2 Heater ground circuit.
No
ACTION
Driveability category.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
Continued
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APPLICABILITY
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