{"product_id":"2004-jeep-grand-cherokee-40ll-pcm","title":"2004 Jeep Grand Cherokee 4.0L PCM","description":"\u003cp\u003eNext Generation Controller (NGC) replacement for the 2004 Jeep Grand Cherokee with 4.0L engine. The WJ-platform Grand Cherokee and late XJ Cherokee transitioned to the NGC architecture, a more capable 104-pin module mounted on the passenger-side inner fender, secured with three 10mm bolts.\u003c\/p\u003e\n\u003cp\u003eThis controller handles fuel delivery, ignition, variable valve timing (4.7L), electronic throttle control, and transmission shift scheduling for the 42RE\/45RFE automatic. Common failure patterns on this generation include extended crank times in cold weather, erratic idle after hot-soak restarts, and intermittent transmission limp mode (P0700 with sub-codes).\u003c\/p\u003e\n\u003cp\u003ePre-programmed to your VIN with SKIM immobilizer pairing. The NGC on 4.0L engines uses a different calibration set than the inline-6, so year and engine match is critical. Updated flash includes TSB corrections for known fuel trim and EGR flow faults.\u003c\/p\u003e","brand":"Premium PCM","offers":[{"title":"Default Title","offer_id":52629852258597,"sku":"PP-GRAN-2004-40","price":349.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1005\/9314\/0005\/files\/pcm-photo-205_d78c79e6-5bd7-4b22-9bb8-5dd039045b10.jpg?v=1782780547","url":"https:\/\/premiumpcm.com\/products\/2004-jeep-grand-cherokee-40ll-pcm","provider":"Premium PCM","version":"1.0","type":"link"}