LEMON Manuals: Even more car manuals for everyone
Home >> Dodge and Ram >> 2003 >> Durango R/T, 4.7 N >> Repair and Diagnosis >> External Pages >> Different car >> Section 2 (Engine Controls - Self-Diagnostics) >> Diagnostic Tests >> DTC P0133: 1/1 O2 Sensor Slow Response, DTC P0139: 1/2 O2 Sensor Slow Response, DTC P0153: 2/1O2 Sensor Slow Response & DTC P0159: 2/2 O2 Sensor Slow Response >> Testing

DTC P0133: 1/1 O2 Sensor Slow Response, DTC P0139: 1/2 O2 Sensor Slow Response, DTC P0153: 2/1O2 Sensor Slow Response & DTC P0159: 2/2 O2 Sensor Slow Response: Testing

WARNING: This page is about a different car, the 2002 Dodge Dakota. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Check for contaminants that may have damaged the O2 sensor, such as contaminated fuel, unapproved silicone, oil and coolant.
  1. Turn the ignition on, with the engine off. With the DRBIII®, read DTCs. Is the Good Trip Counter displayed and equal to zero? If yes, go to next step. If no, go to step  6.
    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.
  2. Start the engine. Check for exhaust leaks between the engine and the related O2 sensor. Are there any exhaust leaks? If yes, repair or replace exhaust parts as necessary. If no, go to next step.
    3. NOTE: Ensure the voltmeter leads meet the terminals in the connector and that there is good terminal-to-wire connection. Ensure the voltmeter leads are connected for positive polarity.
  3. Turn engine off. Backprobe the O2 sensor signal circuit between the O2 sensor harness connector and PCM harness connector. Start the engine and allow it to idle. Is the voltage less than 0.10 volt? If yes, go to next step. If no, repair the high resistance in the O2 sensor signal circuit.
    4. NOTE: Ensure the voltmeter leads meet the terminals in the connector and that there is good terminal-to-wire connection. Ensure the voltmeter leads are connected for positive polarity.
  4. Turn engine off. Backprobe the O2 sensor ground circuit between the O2 sensor harness connector and PCM harness connector. Start the engine and allow it to idle. Is the voltage less than 0.10 volt? If yes, go to next step. If no, repair the high resistance in the O2 sensor ground circuit.
  5. There are no possible causes remaining, replace the PCM.
    6. 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.
  6. Conditions that set DTC are not present at this time. The following list may help in identifying the intermittent condition:
    • Check for contaminants that may have damaged the O2 sensor, such as contaminated fuel, unapproved silicone, oil and coolant.
    • With the engine running at normal operating temperature, monitor the DRBIII® parameters related to the DTC while wiggling the wiring harness. Look for parameter values to change and/or a DTC to set.
    • Review the DRBIII® Freeze Frame information. Attempt to duplicate condition that caused DTC to set.
    • Refer to any Technical Service Bulletin (TSB) that may apply.
    • Visually inspect the related wiring harness. Look for any chafed, pierced, pinched, or partially broken wires.
    • Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals.

    Were any of the above conditions present? If yes, repair as necessary. If no, test is complete.

scientia non olet · About LEMON Manuals