Mode 1 (PCM Adaptive Memory Procedure Drive Mode)

NOTE
- The PCM adaptive memory status can be confirmed with RFCFLAG PID.
- If RFCFLAG PID is ON, Mode 1 is not necessary, because PCM already has adaptive memory.
- If RFCFLAG 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 FAN3 PID for cooling fan status during this procedure.
4. Turn the ignition key off then on again.

5. Access to RFCFLAG PID to confirm PCM adaptive memory status.
- If RFCFLAG PID is ON, Mode 1 is completed.
- If RFCFLAG PID is still OFF, go back to Step 1.