With 4WAL

If the ``Anti-Lock'' warning lamp stays lit, the codes may be cleared with the TECH 1 scanner or by the following procedure:
1. Turn ignition switch to the ``On'' position.
2. Using a suitable jumper wire, ground ALDL terminal ``H'' to ``A'' for two seconds.
3. Remove jumper wire for one second.
4. Repeat grounding for two seconds.
5. On Astro/Safari models, an indication that codes are cleared is when both the ``Anti-Lock'' and ``Brake'' warning lamps become lit, then unlit again.
6. On Bravada and S/T 10-15 models, an indication that codes are cleared is when the ``Anti-Lock'' warning light becomes unlit then both the ``Anti-Lock'' and ``Brake'' warning lamps become lit the unlit again.
If the ``Anti-Lock'' warning lamp is not lit and no codes are stored, the lamp may be accidentally turned ``On'' and remain on by grounding diagnostic terminal ``H'' and ``A'' twice within ten seconds. If this occurs, and Code 65 is read, this code may have been set by the technician.