Which statement best describes what the OBD II functional test reports?

Which statement best describes what the OBD II functional test reports?

• A. It reports the status of all readiness monitors
• B. It reports vehicle identification information
• C. It reports emission-related trouble codes
• D. It reports the status of all the following, except Mode 6 pending codes

Answer: (D)

OBD II functional test focuses on the readiness of the onboard diagnostic system and any emission-related faults. It shows whether each readiness monitor has run and passed, and it lists emission-related trouble codes stored in the ECU. It does not include Mode 6 pending codes, which are detailed results of individual monitor tests not part of the standard functional test output. So the description that it reports the status of all the following, except Mode 6 pending codes, best captures what the functional test provides.

OBD II functional test focuses on the readiness of the onboard diagnostic system and any emission-related faults. It shows whether each readiness monitor has run and passed, and it lists emission-related trouble codes stored in the ECU. It does not include Mode 6 pending codes, which are detailed results of individual monitor tests not part of the standard functional test output. So the description that it reports the status of all the following, except Mode 6 pending codes, best captures what the functional test provides.