We can repair high beam issue with this IPDM.

Replacement module: No need programming or configure for same part number (tested 2017 np300 Navara)

Note : High beam relay is earth control and fuse will have earth and not power when high beam turn on. Accidental short to power on high beam circuit will damage this module.

When the Continental Gen 3 (4JA2) IPDM fails—usually due to an aftermarket light bar or driving light installation error—it causes very specific headlight symptoms:
• Permanently Stuck High Beams: The high beams lock ON completely and will not turn off, even when you switch off the engine and remove the keys.
• Total High Beam Failure: The high beams refuse to turn on at all, while the low beams continue to function normally.
• One-Sided Headlight Outage: Only one side (left or right headlight assembly) completely loses power for high or low beams.
• Flickering or Strobing: The headlights flicker or pulse erratically due to damaged internal digital switching components (MOSFETs).