Memorized vs. Non-Memorized Codes
Some sensor or circuit failures are stored in PCME and are referred to as memorized codes. While other circuit failures, called non-memorized codes, are not stored. Non-memorized codes can be retrieved if ignition is not turned off before accessing codes.
NOTE:
To access non-memorized trouble codes, DO NOT stop engine. Connect jumper wire across data link connector terminals TEN and GND. Observe MIL and note trouble codes. If there is more than one failure present, lowest number malfunction code is displayed first, and remaining codes are displayed sequentially.