Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHRYSLER1999CIRRUS L4-2.4L VIN XREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTECHNICAL SERVICE BULLETINSGENERIC SCAN TOOL - REFERENCE INFORMATION5. O2 MONITORING RESULTS
1999 Chrysler Cirrus L4-2.4L VIN X
5. O2 Monitoring Results
1999 Chrysler Cirrus L4-2.4L VIN XSECTION 5. O2 Monitoring Results
MODE 5 - Request Oxygen Sensor Test Results
Functional Description - The purpose of this test mode is to allow access to the on-board oxygen sensor monitoring test results as required by OBD-II regulations. Use of this mode is "optional", depending on the method used by the vehicle manufacturer to comply with the requirement for oxygen sensor monitoring. Therefore, since support of this mode is manufacturer discretionary, the Chrysler Group has elected NOT to support Mode 5 for 02 sensor monitoring test results (see Mode 6).
When using Mode 5 on a Chrysler Group vehicle, regardless that it is not supported, the software will query using Mode 1 to determine 02 sensors. Consequently on a Chrysler Group vehicle eventually a "NO RESPONSE" message is the only message the user will receive.
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.