Code 52 is "Intermittent or Repaired Lost Battery Feed", it usually pops up when you disconnect the battery or your battery dies. All you need to do to clear the code is
2. Cycle the ignition switch to OFF and then to RUN.
3. Observe air bag indicator prove-out (six ? two seconds) followed by diagnostic trouble code (52-85) flashing completely one time.
4. Locate the Diagnostic "Trouble Code Clear" Connector located underneath the glove compartment (06010) containing Circuits 631 (T/R) and 57 (BK).
5. Use a jumper wire to short Circuit 631 (T/R) to Circuit 57 (BK) or to another good ground. This short must be made after the diagnostic trouble code flashes completely one time, but before the warning light stays on continuously.
6. Hold short until air bag diagnostic monitor tone sounds (approximately five seconds).
7. Release short on Circuit 631 (T/R) to Circuit 57 (BK). This short must be released within 25 seconds after the diagnostic monitor tone sounds.
The connector under the glove box looks like this
BTW it is much easier to jumper the two wires from the back of the connector where the wires go into it than from the front. Hope this helps.