DTC P1106: Barometric Pressure (BARO) Sensor Circuit Range/Performance Problem (2001-03 3.5RL)
Perform PCM reset procedure. See PCM RESET PROCEDURE/CLEARING DIAGNOSTIC TROUBLE CODES under SELF-DIAGNOSTIC SYSTEM. Install SCS Service Connector (07PAZ-0010100) to Service Check Connector. See Figure . Start engine. Hold engine speed at 3000 RPM with no load and transmission in Park or Neutral until radiator fan comes on, then allow engine to idle. Test drive vehicle with transmission in "2" position. Accelerate for 5 seconds using Wide Open Throttle (WOT). If DTC P1106 does not reset, problem is intermittent. System is okay at this time. If DTC P1106 resets, substitute a known-good PCM, and recheck. If symptom or indication goes away, replace original PCM. Barometric Pressure (BARO) sensor is inside of PCM and is not available separately.