{"product_id":"2009-jeep-grand-cherokee-47ll-pcm","title":"2009 Jeep Grand Cherokee 4.7L PCM","description":"\u003cp\u003eNGC powertrain controller for the 2009 Jeep Grand Cherokee with the 4.7L engine on the WK\/XK platform. This generation PCM is located behind the battery box on the driver side and manages a more complex powertrain including electronic throttle body, variable-displacement (5.7L MDS), and the NAG1\/W5A580 5-speed automatic transmission.\u003c\/p\u003e\n\u003cp\u003eThe 4.7L variant requires specific calibration for its displacement-on-demand system, exhaust cam phasing, and knock sensor strategy. Failure symptoms commonly seen on this platform: intermittent MIL illumination with multiple unrelated DTCs stored simultaneously, hesitation on acceleration from stop, and complete no-communication with scan tools (bus failure).\u003c\/p\u003e\n\u003cp\u003eShipped VIN-programmed with WIN (Wireless Ignition Node) or SKREEM module pairing depending on production date. Tested on vehicle network simulator verifying all CAN-C and CAN-IHS bus communications before shipment.\u003c\/p\u003e","brand":"Premium PCM","offers":[{"title":"Default Title","offer_id":52629853372709,"sku":"PP-GRAN-2009-47","price":349.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1005\/9314\/0005\/files\/pcm-photo-17_c4755f3b-156c-44df-82e1-4e2360b42fb9.jpg?v=1782909902","url":"https:\/\/premiumpcm.com\/products\/2009-jeep-grand-cherokee-47ll-pcm","provider":"Premium PCM","version":"1.0","type":"link"}