NAVITAS TAC 2 Error Code And Troubleshooting Guide

INSTALLATION/ SERVICE MANUAL
5
FLASH
CODES
FLASH CODE
MESSAGE
DESCRIPTION SOLUTION HOW TO CHECK
3 - 1 Battery Under
Voltage
Batteries are
empty or too low.
• Recharge batteries
• Check for bad or
damaged batteries.
• Check battery cables
are not loose or
damaged.
• Check solenoid
• Use a battery load tester to verify
battery condition after charging.
• Connect volt meter batteries. (Use
alligator clips). Measure the voltage
while driving to see if the voltage
drops.
• Connect Volt meter to the controller if
the voltage drops at the controller and
not at the battery then the solenoid
may be bad.
3 - 2 Battery Over
Voltage
Batteries are over
charged or not
excepting any
more regenerative
currents
• Check for bad or
damaged Batteries.
• Check Battery Cables
are not loose or
damaged.
• Check Solenoid
• Use a battery load tester to verify
battery condition after charging.
• Connect volt meter batteries. (Use
alligator clips). Measure the voltage
while driving to see if the voltage rises.
• Connect volt meter to the controller if
the voltage rises at the controller and
not at the battery then the solenoid
may be bad.
3 - 3 Motor Over
Current
Motor current has
risen above the
maximum motor
current parameter.
• Check Motor U,V,W
cables are not
shorted to ground
See diode chart below
• The diagnostics page of the App will
give you readings for the U phase
voltage, V phase voltage, W phase
voltage
• The phases should read around half the
battery voltage.
• Disconnect phases at controller and
check readings again
4-5 Over Current
Fault
Motor current
has exceeded
controller current
limit.
• Release throttle and
reapply to drive
• Error code will clear when key is off
and in Tow.

NAVITAS TAC 2 Specifications

General

Brand	NAVITAS
Model	TAC 2
Category	Controller
Language	English