OBD-II equipped vehicles have a connector located in the passenger compartment, usually accessible from the drivers seat (under the dash above the hood release lever in the Grand Cherokee WJ). - Sherlock Holmes. Fuel level sensor input above acceptable voltage. Within the last 50 starts, the majority of them have been successful. 1995-2023, Quadratec, Inc. All rights reserved. An open or shorted condition detected in the governor pressure solenoid or relay circuits (4-speed auto. Camshaft Position Sensor A Circuit Range/Performance (Bank 1 or Single Sensor), Camshaft Position Sensor A Circuit Low Input (Bank 1 or Single Sensor), Camshaft Position Sensor A Circuit High Input (Bank 1 or Single Sensor), Camshaft Position Sensor A Circuit Intermittent (Bank 1 or Single Sensor). Throughout this website and catalog the terms Jeep, Wrangler, MOPAR, & Rubicon are used for identification purposes only. Im a qualified car mechanic with over 10 years experience. An open or shorted condition detected in control circuit for Injector # 3 or the INJ 3 injector bank. Throttle position sensor input below the acceptable voltage range. Heated Catalyst Efficiency Below Threshold (Bank 2), Heated Catalyst Temperature Below Threshold (Bank 2), Catalyst Temperature Sensor Range/Performance (Bank 2), Catalyst Temperature Sensor Low Input (Bank 2), Catalyst Temperature Sensor High Input (Bank 2), Evaporative Emission Control System Incorrect Purge Flow. No CCD/J1850 messages received from the electronic transmission control module (EATX) or the Asian transmission controller. The fix for the condition is a PCM replacement, not a reprogramming of the controller. Need more information on how to fix the U1424 Jeep code? Check Engine Light Codes for Park/Neutral Position Switch Stuck In Park or In Gear Back To Top of Jeep. Injector # 9 output driver stage does not respond properly to the control signal. The PCM P1697 file is corrupted. The simplest way to reset the check engine light is to use an OBD2 scanner. If you disregard that warning, you may end up causing significant damage to costly engine components. An open or shorted condition detected in the control circuit of the # 2 high-speed radiator fan control relay. trans. Transmission fluid temperature sensor input above acceptable voltage. Take a moment to count the flashes and note the pause between them. The true diagnosis must be made by an expert who has worked on the problem and repaired it. To find codes, launch the Find On This Page button in your browsers Edit menu. Web the grand cherokee may backfire. OBD systems are found in most vehicles in use today. Rationality error detected for clutch upstop switch performance. This internal leak may be caused by an intermittent or permanently stuck open Duty Cycle Purge (DCP) valve. The voltage in the P1682 charging system is too low. Stop by any parts store and let them pull the code for you. The data provided by the OBD-II system can sometimes pinpoint the specific component that has malfunctioned, saving substantial service time and cost. Was the fuel pressure checked with a DRBIII pressure transducer? If you are planning a Moab trip in the near future, here are some of the trails you need to mark down. PCM not programmed (generic controller fault). Insert the key into the ignition. 5. ASD voltage sensed when ASD relay is energized or ASD voltage not sensed when ASD relay is not energized. APPS voltage input above the maximum acceptable voltage. Shift Solenoid C Performance or Stuck Off, Shift Solenoid D Performance or Stuck Off, Shift Solenoid E Performance or Stuck Off, Pressure Control Solenoid B Performance or Stuck off, Intermediate Shaft Speed Sensor Circuit Range/Performance, Intermediate Shaft Speed Sensor Circuit No Signal, Intermediate Shaft Speed Sensor Circuit Intermittent, Pressure Control Solenoid C Performance or Stuck off, Reverse Gear Lockout Circuit Open or Short. Jeep's newest truck continues to grow in popularity each year especially at EJS. Shorted condition detected in the oxygen sensor heater element control feedback sense circuit. Ambient temperature sensor input above the maximum acceptable voltage. This area is the source of many speed control complaints. Recent introductions of less costly scanning devices have allowed home mechanics and small shops accessibility to OBD-II signals to use them for their own testing and repairs. Ignition/Distributor Engine Speed Input Circuit Range/Performance, Ignition/Distributor Engine Speed Input Circuit No Signal, Ignition/Distributor Engine Speed Input Circuit Intermittent, Knock Sensor 1 Circuit (Bank 1 or Single Sensor). Jan 1, 2017. The most common way is to use a code reader or scanner. trans. The requested pressure and the actual pressure are not within a tolerance band for the Governor Control System which is used to regulate governor pressure to control shifts for 1st 2nd and 3rd gear (Zero Pressure Malfunction). Incorrect or irrational performance has been detected for the PWM O2 heater circuit. Error code: 20", then you. If your Jeep Cherokee is displaying error codes, its important to know how to properly reset the system. An open or shorted condition detected in the generator field control circuit. Ignition Coil E Primary/Secondary Circuit, Ignition Coil F Primary/Secondary Circuit. An open or shorted condition detected in the torque converter part throttle unlock solenoid control circuit (3 or 4-speed auto. See TSBs. 3. Intake Air Temperature Circuit Range/Performance Problem. only). Alternative Fuel Control Module KAM Error, Alternative Fuel Control Module RAM/ROM Error, Generator Lamp L Terminal Control Circuit. An open or shorted condition detected in the transmission 2-4 shift solenoid circuit (4-speed auto. Wait for about 30 seconds before replacing the fuse. A coil (1-5) is drawing too much current. 1/1 02 Sensor Slow During Catalyst Monitor, A slow switching oxygen sensor has been detected in bank 1/1 during catalyst monitor test. Energizing Heated Air Intake does not change intake air temperature sensor an acceptable amount. trans. trans. Speed control switch input below minimum acceptable voltage. Governor Pressure Above 3 PSI In Gear With 0 MPH. An open or shorted condition detected in the Leak Detection Pump (LDP) solenoid circuit. No CCD/J1850 messages received from the Climate Control Module (CCM). NVLD Canister Vent Valve Solenoid Circuit High. Relationship between engine and vehicle speeds indicated failure of torque convertor clutch lock-up system (TCC/PTU sol). An open or shorted condition detected in the secondary air (air switching/aspirator) solenoid control circuit. By using an OBD2 scanner, you can avoid disconnecting the battery and reset the check engine light without losing it. (was P0153), 1/2 02 Sensor Slow During Catalyst Monitor, A slow switching oxygen sensor has been detected in bank 1/2 during catalyst monitor test. This includes all counter information for warm-up cycles, trips and Freeze Frame. This code indicates that the EATX (Transmission controller) has an active fault and has illuminated the MIL via a BUS message. Remember that the evaporative system may also have an internal system leak. An open or shorted condition detected in the torque converter clutch (part throttle unlock) solenoid control circuit. [ Mini ] [ Mitsubishi ] [ Nissan ] This TSB applies in a very limited number of cases and usually in mountainous regions. Web the cylinders are numbered from front to rear. Review and if necessary, perform TSB 18-005-03. trans. Incorrect input state detected for the Park/Neutral switch. When transmission is in limp mode the relay that provides power to the solenoid group is switched off. Each time a faulty oxygen sensor is found, the check engine light comes on. Neither rich or lean condition is detected from the oxygen sensor. trans. Exhaust Gas Recirculation Sensor A Circuit Low. O2 Sensor Heater Circuit (Bank 1 Sensor 1). by Dannie Watts | Nov 4, 2022 | Grand Cherokee. Problem detected in air conditioning electrical circuit. WJ 1999 & 2000: Check the camshaft target wheel (located on the right side camshaft sprocket) for damage or excessive runout. Danno Feb 20, 2014. Intake Air Temperature Circuit Intermittent, Engine Coolant Temperature Circuit Range/Performance Problem. Intake air (charge) temperature sensor input below the minimum acceptable voltage. only). An internal leak may cause one of the above DTC?s. A Camshaft Position Actuator Circuit (Bank 2), A Camshaft Position Timing Over-Advanced or System Performance (Bank 2), A Camshaft Position Timing Over-Retarded (Bank 2), B Camshaft Position Actuator Circuit (Bank 2), B Camshaft Position Timing Over-Advanced or System Performance (Bank 2), B Camshaft Position Timing Over-Retarded (Bank 2), 02 Sensor Heater Control Circuit (Bank 1 Sensor 1). Once the negative battery cable is disconnected, locate the fuse box. This problem is a common one for older vehicles, and it is frequently the first thing to go wrong. Required change in air/fuel ration not detected during diagnostic test. The Jeep Certified Technicians and the certified service protocol that we use can help us figure out what is wrong. A lean air/fuel mixture has been indicated by an abnormally rich correction factor. However, the list does not end there. I changed the headlights on my 2014 Grand Cherokee, and now the check engine light is on. Engine coolant temperature sensor input above the maximum acceptable voltage. This system works hand in hand with your vehicle's traction control system to help you control your vehicle in dangerous conditions. Was MIL code 37. Immediate service is required. Chrysler uses ISO 9142-2 OBDII Communications Protocol. Engine coolant temperature remains below normal operating temperatures during vehicle travel (Thermostat). If there is no procedure for your manufacturer specific OBD II code, please use an alternative OBD II code. Prior to replacing parts, check all connectors between the speed control switch and the PCM for moisture Internally the PCM uses the same A/D (analog to digital) converter for TPS voltage as it does for the speed control switch sense. Unsuccessful attempt to write to an EEPROM location by the control module. Oxygen sensor heater element malfunction. Its all up to you whether the vehicle is running smoothly. Verify the correct DRBIII PEP module pressure transducer is being used It is critical when reading pressures with the DRBIII PEP module pressure transducers that the proper transducer is being used. In the Grand Cherokee WJ, the MIL gives an indication to the vehicle operator when the Powertrain Control Module (PCM) has recorded a Diagnostic Trouble Code (DTC) for an On-Board Diagnostics II (OBDII) emissions-related circuit or component malfunction. 1999 & 2000: check the camshaft target wheel ( located on the problem and repaired.! 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