The Technical Definition: The Totally Integrated Power Module (TIPM) detects that the electrical current draw on the driver's side low beam headlight circuit is lower than the expected threshold, usually indicating an open circuit.

Common Symptoms: The driver's side low beam headlight will not turn on.

Typical Fix: A burnt-out halogen bulb is the most obvious cause. However, on the Wrangler JK, this code is incredibly common when upgrading to aftermarket LED headlights. LEDs draw much less power than halogens, tricking the TIPM into thinking the bulb is burnt out. Installing a proper CAN bus anti-flicker harness (resistor) in line with the new LED headlight usually resolves this.