computer code p1598 - Jeep 2004 Grand Cherokee question. P1199 Radiator Temperature Sensor Volts Too Low P1281 Engine Is Cold Too Long P1282 Fuel Pump Relay Grand Cherokee: Had a code P1281 engine seemed to be running - Answered by a verified Jeep Mechanic We use cookies to give you the best possible experience on our website. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. The P1281 trouble code typically signifies an incorrect coolant level or mixture, a flawed air-fuel ratio, or a bad radiator. Symptoms include: A triggered Check Engine Light; White exhaust fumes; Extreme gauge readings; Reduced throttle control; Fuel economy; Engine overheating; P1281 is not a blanket fault code, unlike other DTCs. Problem Description. On Vehicles with a 4.7L or 5.7L V8 engine, the Check Engine Light may illuminate with code P2181 for a cooling system performance fault. Or technicians tell us that updated software for the powertrain control module (PCM) is available to correct this concern. 34 people reported this problem. This is what the engineers named this circuit. There is a ton of data being processed through this circuit between the computers on board your vehicle. Your cluster displays this NO BUS reading when it is not able to communicate with the other modules on board the vehicle. This is actually pretty common on this vehicle. P1391 CHRYSLER - Intermittent Loss of CMP or CKPUsually paired with a check engine light on. Crank Position Sensor or Cam Position Sensor intermittent failu Dodge / Jeep ® / RAM Dealership repaired. The persistent 2. Call the FCA Recall Assistance Center at 1-800-853-1403. An agent can confirm part availability and help schedule an appointment 3. Visit recalls.mopar.com, scan the QR code below, or download the Mopar Owner’s Companion App. TO SCHEDULE YOUR Two weeks ago I had to replace - Jeep 2004 Grand Cherokee question. Search Fixya. Browse Categories Answer Questions P1281 GRAND CHEROKEE code p1281 Sounds like a stuck open thermostat to me. the only confuser for me is when you say the two hoses are cold/hot. It is hard to compare the temperature of each hose at any point in the start/warmup if I am not sure which hose you are talking about. 1. Check and Clean/Replace the Faulty Wheel Speed Sensor. For some valid reasons, the wheel speed sensor in your Jeep is one of the essential elements of the anti-lock brake system. You’ll find the wheel speed sensors in every single Jeep wheel. The fundamental duty of a wheel speed sensor is to monitor the speed of the wheels of your Jeep. ndEAe.