Datasheet

Low Voltage Programming
Only some PIC devices have 5V programming – LVP – option. Consult the
device data sheet if you are unsure.
Assuming the PIC device has LVP mode, then you need to connect the
PGM pin on the PIC to the header and connect the orange programmer
line to this header pin. The pull-down resistor on the PGM line must be
fitted for LVP to function correctly – see note 5 on diagram.
Notes:
1) The LVP enable fuse must be set – in CONFIG4L register. Factory
default is LVP enabled. If you program this fuse off, then only HVP
mode can set it again.
2) The programmer software must be set to Low Voltage mode - LVP
Press the button to start programming.
Once programming is finished, the button can be pressed again to do
another programming cycle without unplugging the programmer.
Do NOT leave the programmer connected to target circuits for long
periods as this will flatten the battery.
LED Codes
Normal operation:
A single green flash, when first connected to target. Then, after pressing
the button, the LED turns green for the duration of programming. At the
end of programming the green LED flashes for 5 seconds and switches
off, and the target system is powered down.
If there was an error, the LED will flash RED. These codes repeat several
times, but with an interval between groups.
Error codes – LED turns red:
2 flashes - General verify error
3 flashes - Data memory did not verify
4 flashes - Code memory did not verify
5 flashes - User ID words did not verify *
6 flashes - Configuration Bytes did not verify *
7 flashes - Device ID did not match *
8 Flashes - Set Program count reached *
Constant Red LED – Low battery or Over-current trip > 150MA