Monitors, Trips, Drive Cycles and Readiness Codes
OBD-II DRIVE MODE- Using the OBD-II drive mode, the monitoring item requested by OBD-II regulations can be easily diagnosed.
- Performing the Drive Mode inspects the OBD-II system for proper operation and must be performed to ensure that no additional DTCs are present
- The OBD-II drive mode is divided into the specific drive mode and single drive mode
- For the specific drive mode, specified drive modes have been set for each individual monitoring item requested by OBD-II regulations, and they can be diagnosed individually For the single drive mode, the entire monitoring item requested by OBD-II regulations can be diagnosed
- The following modes are in the specific drive mode The applicable system is diagnosed by driving in the following drive modes
- Mode 3 (HO2S heater, HO2S, and TWC Repair Verification Drive Mode)
- Mode 5 (AIR System Repair Verification Drive Mode)
- Mode 6 (EVAP System Repair Verification Drive Mode)
- The following systems are diagnosed with the single drive mode
- HO2S heater
- HO2S
- TWC
- AIR System
- EVAP System
CAUTION
- While performing the Drive Mode, always operate the vehicle in a safe and lawful manner.
- When the WDS or equivalent is used to observe monitor system status while driving, be sure to have another technician with you, or record the data in the WDS or equivalent using the PID/DATA MONITOR AND RECORD function and inspect later.
NOTE
- Vehicle speed and engine speed detected by the PCM may differ from that indicated by the speedometer and tachometer Use the WDS or equivalent to monitor vehicle speed and engine speed
- If the OBD-II system inspection is not completed during the Drive Mode, the following causes are considered
- The OBD-II system detected a malfunction
- The Drive Mode procedure was not completed correctly
- Disconnecting the battery will reset the memory Do not disconnect the battery during and after the Drive Mode
- The WDS or equivalent can be used at anytime through the course of the Drive Mode to monitor the completion status Monitoring can be done by viewing the ON BOARD SYSTEM READINESS menu
- The RFC diagnostic status can be confirmed with the ignition switch operation During KOEO, the MIL illuminates for a fail-light inspection for approx. 17 s The RFC diagnostic status is confirmed after the fail-light inspection
- If all of the RFC diagnostic is completed even one time, the MIL will continue to illuminate
- If all of the RFC diagnostic is not completed, the MIL flashes for approx. 7 s, and then it illuminates until the engine is started
Mode 3 (HO2S heater, HO2S, and TWC Repair Verification Drive Mode)
1. Verify that all accessory loads (A/C, headlights, blower fan, rear window defroster) are off.
2. Drive the vehicle as shown in the graph. The driving condition before driving at constant speed is not specified.
3. Stop the vehicle and access the ON BOARD SYSTEM READINESS to inspect the Drive Mode completion status.
- If completed, RFC changes from No to Yes.
- If not completed, turn the ignition switch off, then go back to Step 2.
4. Access the DIAGNOSTIC MONITORING TEST RESULTS to inspect the monitor results.
- If detect values are not within specification, repair has not been completed.
5. Verify that no DTCs are available.
Mode 5 (AIR System Repair Verification Drive Mode)
1. Verify that all accessory loads (A/C, headlights, blower fan, rear window defroster) are off.
2. Drive the vehicle as shown in the graph. The driving condition before driving at constant speed is not specified.
3. Stop the vehicle and access the ON BOARD SYSTEM READINESS to inspect the Drive Mode completion status.
- If completed, RFC changes from No to Yes.
- If not completed, turn the ignition switch off, then go back to Step 2.
4. Access the DIAGNOSTIC MONITORING TEST RESULTS to inspect the monitor results.
- If detect values are not within specification, repair has not been completed.
5. Verify that no DTCs are available.
Mode 6 (EVAP System Repair Verification Drive Mode)
NOTE: If the Mode 6 cannot be performed (you cannot drive the vehicle under the Mode 6 condition), perform the "Evaporative System Test" as an alternative. (See Evaporative Emission (EVAP) System Leak Inspection.)
1. Drive the vehicle as shown in the graph. The driving condition before driving at constant speed is not specified.
2. Stop the vehicle and access the ON BOARD SYSTEM READINESS to inspect the Drive Mode completion status.
- If completed, RFC changes from No to Yes.
- If not completed, turn the ignition switch off, then go back to Step 1.
3. Access the DIAGNOSTIC MONITORING TEST RESULTS to inspect the monitor results.
- If detect values are not within specification, repair has not been completed.
4. Verify that no DTCs are available.
Single Drive Mode (HO2S heater, HO2S, TWC, AIR System and EVAP System Verification Drive Mode)
1. Verify that all accessory loads (A/C, headlights, blower fan, rear window defroster) are off.
2. Clear the DTC and from the PCM memory using the WDS or equivalent.
3. Drive the vehicle as shown in the graph. The driving condition before driving at constant speed is not specified.
4. Stop the vehicle and access the ON BOARD SYSTEM READINESS to inspect the Drive Mode completion status.
- If completed, all of RFC changes from No to Yes.
- If not completed, turn the ignition switch off, then for the monitoring item that was not in the detection condition, perform the applicable specific drive mode.
5. Access the DIAGNOSTIC MONITORING TEST RESULTS to inspect the monitor results.
- If detect values are not within specification, repair has not been completed.