Curtis 3501 Manual -

Overview

Connector Pinout: Pin 1 (SCI Rx), Pin 3 (CAN_L), Pin 7 (KSI - Key Switch Input), and Pin 8 (MOSFET Output) are critical for primary wiring.

Without the manual, those blinks are just a frustrating light show. With the manual, you have a diagnostic key. curtis 3501 manual

Battery Discharge Indicator (BDI): Monitoring the state of charge for lead-acid or lithium-ion batteries.

Conclusion

If your Curtis 3501 is not behaving as expected, refer to these common solutions found in the manual:

• Extract and mock up a searchable index from a provided Curtis 3501 PDF, or
• Generate the Parameter quick-reference table from the manual if you upload it.

Lockout: 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 Overview Connector Pinout : Pin 1 (SCI Rx),

| Symptom | Likely Cause | Manual Solution | | :--- | :--- | :--- | | Vehicle moves at idle | Idle voltage too high (>1.0V) | Adjust linkage to create more slack; recalibrate | | Jerky acceleration | Worn wiper or dirty resistive track | Clean with contact cleaner (non-lubricating) or replace | | No throttle response | Open circuit in potentiometer | Measure total resistance; if infinite, replace unit | | Intermittent operation | Loose crimp pins in connector | Re-pin connector per manual wiring diagram | | Mechanical binding | Foreign debris or bent shaft | Remove, clean, and lubricate shaft bushing sparingly |