IP65 rating for the front face and IP40 for the rear. Pin Connection Diagram (16-Pin Connector) Refer to the Curtis Model 3501 technical documentation for precise wiring: 1 9 2 10 3 11 4 CAN_L Termination 12 CAN_H Termination 5 Switch Input 1 / Freq 1 13 Switch Input 2 / Freq 2 6 Switch Input 3 / Fault Code 14 Switch Input 4 / Fault Input 7 KSI (Key Switch Input) 15 B- (Battery Negative) 8 MOSFET Output 16 B+ (Battery Positive) Key Features
This indicates a "Empty" state or a voltage drop below the critical threshold. Recharge the battery immediately to prevent "deep discharge" damage.
-40°C to 50°C (-40°F to 122°F).
Activates direction control for reverse travel.
Poor ground connection. Check Pin 3 for corrosion, loose crimps, or paint on the chassis grounding post. Maintenance and Preventive Care curtis 3501 manual
The Curtis 3501 operates using high-frequency Pulse Width Modulation (PWM), which ensures silent operation and high efficiency. Before installing or servicing your unit, verify your system matches the hardware specifications. Key Technical Specifications
Blown system fuse. Check the inline fuse protecting the gauge cluster wiring circuit. IP65 rating for the front face and IP40 for the rear
Anyone have a PDF of the ? I’m trying to identify the symbols on this old multimeter and can’t find the original manual anywhere online. Help appreciated! 🙏 #Curtis3501 #manual #electronics
Disclaimer: Always follow your vehicle manufacturer's specific wiring diagrams. Improper installation can cause damage to the instrument panel or vehicle electronics. -40°C to 50°C (-40°F to 122°F)
You can calibrate the meter to match the specific discharge rate of your battery brand.