LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Mazda >> 2002 >> MX-5 Miata LS, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P1633: Battery Overcharge >> Detection Condition
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Detection Condition

DTC is set when Powertrain Control Module (PCM) detects generator output is more than 18.5 volts or battery voltage is more than 16 volts for 5 seconds while engine is running. PCM determines that charging system has malfunction.