Mode 1 (PCM Adaptive Memory Procedure Drive Mode)

NOTE:
- The PCM adaptive memory status can be confirmed with RFC FLAG PID.
- If RFC FLAG PID is ON, Mode 1 is not necessary, because PCM already has adaptive memory.

If RFC FLAG PID is OFF, Mode 1 should be performed before Mode 2 or 3.
1. Start the engine and warm up completely.

2. Verify the following conditions and correct if necessary:
- All accessory loads (A/C, headlights, blower fan, rear window defroster) are off.
- Initial ignition timing and idle speed are within specification.
- TEN and GND of DLC are not connected.




3. Perform no load racing at the engine speed shown in the graph, then idle the engine for more than 20 seconds after the cooling fan stopped. If possible, monitor RPM PID for engine speed and FAN 3 PID for cooling fan status during this procedure.

4. Turn the ignition key to OFF then to ON again. Access to RFC FLAG PID to confirm PCM adaptive memory status.
- If RFC FLAG PID is ON, Mode 1 is completed.
- If RFC FLAG PID is still OFF, repeat Steps 1 to 3.