Receives 24V/36V/48V power from the key switch to turn the unit on.
Before initiating any wiring procedures, disconnect the vehicle batteries and open the main circuit breaker or fuse to prevent accidental short circuits or arc flashes.
Connects to the vehicle’s keyswitch or main power source. curtis 3501 manual
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If locked out of the controller, verify the OEM passcodes or contact an authorized dealer for a master reset. Further support is available on the HPEVS Manual site. Digital Instrumentation Model 3501 Receives 24V/36V/48V power from the key switch to
: Connects to the main battery pack positive terminal (via the main contactor/solenoid). B- : Connects to the main battery pack negative terminal.
Plug in your Curtis programmer (or PC software) to the 3501. Navigate to the . I can provide tailored steps to resolve your
The Curtis 3501 uses a multi-pin connector or spade terminals on the rear of the device. Correct wiring prevents damage to the internal logic boards.
The manual’s troubleshooting flow is a model for thinking:
Main Contactor Driver Fault. Contactor coil is shorted or open circuit.
: It uses a monochrome dot matrix FSTN LCD with a 240x128 resolution, providing clear visibility for critical vehicle data. Technical Specifications
