OBD DRIVE MODE [13B-MSP]

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• Performing the Drive Mode inspects the OBD system for proper operation and must be performed to ensure that no additional DTCs are present.

• During the Drive Mode, the following systems are inspected:

― Mode 03 (A/F sensor heater, HO2S heater, A/F sensor, HO2S, and TWC Repair Verification Drive Mode)

― Mode 05 (AIR System Repair Verification Drive Mode)

Caution

• While performing the Drive Mode, always operate the vehicle in a safe and lawful manner.

• When the M-MDS 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 M-MDS 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 M-MDS or equivalent to monitor vehicle speed.

• If the OBD system inspection is not completed during the Drive Mode, the following causes are considered:

― The OBD 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 M-MDS 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.

Mode 03 (A/F sensor heater, HO2S heater, A/F sensor, 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.

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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 05 (AIR System Repair Verification Drive Mode)