Factory-replacement JTEC (Jeep/Truck Engine Controller) for the 2005 Jeep Wrangler equipped with the 4.0L inline engine. The JTEC platform managed fuel injection, ignition timing, idle air control, and emission system functions on all 1996-2001 XJ Cherokee and TJ Wrangler models.

This remanufactured unit is mounted on the driver-side firewall behind the battery tray. Common failure symptoms on this generation include intermittent no-start conditions, rough idle that worsens when warm, and P0351/P0352 ignition coil circuit codes. Our replacement is VIN-programmed with SKIM (Sentry Key Immobilizer Module) synchronization so your existing keys work immediately upon installation.

Bench-tested across all 32 I/O circuits before shipping. Includes updated calibration data addressing known idle surge and fuel trim drift issues on the 4.0L powertrain.