2001 Mercury Mariner 50-60HP Factory Service Manual, Page 110Get this manual
CHARGINGSTARTING SYSTEM
TACHOMETER CIRCUIT TEST: 1Set Ohm meter to 1k scale2Connect Red (+) meter lead to GREY regulator lead3Connect Black () meter lead to regulator caseTEST RESULTS: 10,00050,000 OHMS (10k50k)
Digital Meter
NOTE: Voltage regulatorrectifier specifications are given for informational purposes only, use the appropriate troubleshooting techniques previously mentioned to find the faulty component in the charging systemBLK BlkBlack GryGray RedRed YelYellow
GRY YEL YEL