USING MIL

1. Turn ignition switch to OFF position. Locate Data Link Connector (DLC), next to fuse block. Connect DLC self-diagnostic output terminal and chassis ground with a jumper wire. See Fig. 1.

2. Turn ignition switch to ON position. Disclosure of PCM memory will begin. If 2 or more systems are non-functional, they are indicated by order of increasing code number. Go to step 4).

3. Turn ignition on, off, on, off and on within 5 seconds. Record 2-digit trouble codes as displayed by flashing MIL. Go to next step.

4. Indication is made by MIL flashes. A constant repetition of short flashes indicates system is normal.

5. If system is abnormal, signals will appear on MIL as long and short flashes. Long flashes represent tens; short flashes represent ones. For example, 4 long flashes and 3 short flashes indicate Code 43. After recording trouble code(s), perform necessary repair(s) to indicated circuit(s).