Mode 4 (EVAP System Repair Verification Drive Mode)

Mode 4 (EVAP System Repair Verification Drive Mode)

NOTE:
- If Mode 4 cannot be performed (it is impossible to drive the vehicle under Mode 4 condition), perform evaporative system test procedure as an alternative. (See ENGINE CONTROL SYSTEM OPERATION INSPECTION.)
- Mode 4 can be performed regardless of RFCFLAG status.

1. Verify all following PIDs are within the following specifications. All PIDs must be within the specifications before engine is started to initiate the evaporative monitoring.
- Barometric pressure: 72.0 kPa {540 mmHg, 21.3 inHg} or higher
- Intake air temperature: -10 - 60 °C {14 - 140 °F}
- Fuel tank level: 0.24 - 2.0 V
- Engine coolant temperature: -10 - 35 °C {14 - 95 °F}




2. Verify all accessory loads (A/C, headlights, blower fan, rear window defroster) are off.
3. Start the engine and race it at 3,500 rpm to warm it up completely.
4. Stop the vehicle and access ON BOARD SYSTEM READINESS menu of GENERIC OBD-II FUNCTION to inspect the completion status.
- If completed, RFC changes from NO to YES.
- If not completed, turn the ignition key off then go back to Step 1.

5. Access DIAGNOSTIC MONITORING TEST RESULTS menu of GENERIC OBD-II FUNCTIONS to inspect the monitor results.
- If MEAS values of 10:21:00 and 10:22:00 are not within the specification, repair has not been completed.

6. Verify no DTCs are available.