2006 Honda TRX680 Rincon Factory Service Manual, Page 554Get this manual
LIGHTSMETERSSWITCHES 4GPS Receiver Replacement Replace the GPS receiver with known good oneTurn the ignition switch ON, wait for minutes and recheckthe GPS indicatorIs the GPS indicator still blinking? YES NOFaulty combination meter- Faulty original GPS receiver
INDICATOR GPS START-UP TIME IS TOO LONG 1Recheck With the GPS System Reset Disconnect the battery negative (-) cable and reconnect itTurn the ignition switch ON, wait until GPS system starts-up, and turn the ignition switch to OFF and ONDoes the GPS start-up within 30 seconds? YES NONo problem (Temporary failure)- GO TO STEP 2