# Service bulletin 18\-018\-14 REV. B A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned. - Type: Service bulletin - NHTSA id: 10139643 - Published by NHTSA: 2018\-06\-11 - Manufacturer's number: 18\-018\-14 REV. B - Manufacturer's date: 2014\-04\-16 - NHTSA component: FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING ## NHTSA's summary Flash: MIL Illumination \- Diagnostic and System Improvements This bulletin involves selectively erasing and reprogramming the Powertrain Control Module \(PCM\) with new software. Some customers may experience a condition that the Oil Life Monitor shows faster then expected oil life deterioration. Software enhancements will address this issue. Some customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation the Technician may find that any of the following Diagnostic Trouble Code\(s\) may have been set erroneously: ? P0087\-00 \- FUEL RAIL PRESSURE TOO LOW ? P0088\-00 \- FUEL RAIL PRESSURE TOO HIGH ? P016F\-00 \- CLOSED LOOP FUEL PRESSURE CONTROL AT LIMIT \- PRESSURE TOO LOW ? P009A\-00 \- INTAKE AIR TEMPERATURE / AMBIENT AIR TEMPERATURE CORRELATION ? P0234\-00 \- TURBOCHARGER OVERBOOST CONDITION ? P0420\-00 \- CATALYST EFFICIENCY \(BANK 1\) ? P0426\-00 \- CATALYST TEMPERATURE SENSOR CIRCUIT PERFORMANCE \(BANK 1 SENSOR 1\) ? P050E\-00 \- COLD START ENGINE EXHAUST TEMPERATURE TOO LOW ? P05F8\-00 REDUCTANT HEATER CONTROL MODULE PERFORMANCE ? P061B\-00 \- INTERNAL CONTROL MODULE TORQUE CALCULATION PERFORMANCE ? P062B\-00 \- INTERNAL CONTROL MODULE FUEL INJECTOR CONTROL CIRCUIT PERFORMANCE ? P0128\-00 \- THERMOSTAT RATIONALITY ? P1D30\-00 \- OIL VISCOSITY TOO LOW ? P200A\-00 \- INTAKE MANIFOLD RUNNER PERFORMANCE \- BANK 1 ? P200B\-00 \- INTAKE MANIFOLD RUNNER PERFORMANCE \- BANK 2 ? P202E\-00 \- REDUCTANT INJECTION VALVE CIRCUIT PERFORMANCE ? P203E\-00 \- REDUCTANT LEVEL SENSOR 1 CIRCUIT INTERMITTENT/ERRATIC ? P204F\-00 \- REDUCTANT SYSTEM PERFORMANCE ? P2080\-00 \- EXHAUST GAS TEMPERATURE SENSOR CIRCUIT PERFORMANCE ? P2084\-00 \- EXHAUST GAS TEMPERATURE SENSOR CIRCUIT PERFORMANCE \- BANK 1 SENSOR 2 ? P20BA\-00 \- REDUCTANT HEATER 1 CONTROL CIRCUIT PERFORMANCE ? P20BE\-00 \- REDUCTANT PRESSURE LINE HEATER CONTROL CIRCUIT PERFORMANCE ? P20EE\-00 \- SCR NOX CATALYST EFFICIENCY BELOW THRESHOLD BANK 1 ? P20C2\-00 \- REDUCTANT HE ## The document - [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2014/MC-10139643-9999.pdf) - [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2014/MC-10139643-0001.pdf) The document is the manufacturer's. This site does not hold it. ## Components Engine, Fuel system ## Trouble codes named P0087, P0088, P009A, P0128, P016F, P0234, P0420, P0426, P050E, P05F8, P061B, P062B, P1D30, P200A, P200B, P202E, P203E, P204F, P2080, P2084, P20BA, P20BE, P20C2, P20EE ## Vehicles listed - 2014 JEEP GRAND CHEROKEE ## Recalls for the same vehicles and component - [2023338](/recalls/tc/2023338.md), 2023-06-08: Engine - [23V411000](/recalls/nhtsa/23V411000.md), 2023-06-08: ENGINE AND ENGINE COOLING - [2022303](/recalls/tc/2022303.md), 2022-06-09: Fuel System - [22V406000](/recalls/nhtsa/22V406000.md), 2022-06-09: FUEL SYSTEM, DIESEL:DELIVERY:FUEL PUMP - [2020544](/recalls/tc/2020544.md), 2020-11-12: Engine - [20V699000](/recalls/nhtsa/20V699000.md), 2020-11-12: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE \(EGR VALVE\) - [2020371](/recalls/tc/2020371.md), 2020-08-13: Engine - [20V475000](/recalls/nhtsa/20V475000.md), 2020-08-13: ENGINE AND ENGINE COOLING:ENGINE:DIESEL - [2018269](/recalls/tc/2018269.md), 2018-05-17: Engine ## Other bulletins for the same vehicles and component - [9100639](/bulletins/11021845.md), 2025-08-13, Service bulletin: ENGINE. Verify Reman part number availability. Order the "R" part number for all orders: Warranty, Mopar, customer pay and service contract. Order "68" part number for New unsold units only. - [105038](/bulletins/11018500.md), 2025-05-20, Service bulletin: FUEL/PROPULSION SYSTEM. TUBE \- FUEL INJECTOR SUPPLY \& GASKET \- NONE - [105039](/bulletins/11018408.md), 2025-05-16, Service bulletin: FUEL/PROPULSION SYSTEM. TUBE \- FUEL INJECTOR SUPPLY \& GASKET \- NONE - [102812](/bulletins/11015125.md), 2025-03-05, Service bulletin: FUEL/PROPULSION SYSTEM. RAIL \- FUEL - [9100494](/bulletins/11013256.md), 2025-01-30, Service bulletin: FUEL/PROPULSION SYSTEM. FUEL PUMP/LEVEL UNIT MODULE For vehicles with Saddle Fuel Tanks, need to determine if there are any DTCs in wiTECH. Follow Service Diagnostics published prior to making any changes. Review any existing SOL or TSBs published for customer complaint issue. Only the Fuel Pump Module should be replaced if there are DTCs associated with the Fuel Level Sensor number 1. Only the Auxiliary Level Sender should be replaced if there are DTCs associated with the Fuel Level Sensor number 2. If there is a mixture of DTCs between the Fuel Pump Module and the Auxiliary Level Sensor, then investigate if there is a Jumper Harness or circuit issue between the Level Sender and the PCM. Verify fuel transfer between auxiliary tank and the primary tank by monitoring the auxiliary level sensor to verify it drops after driving. - [9003357A](/bulletins/10247906.md), 2024-01-02, Service bulletin: ENGINE AND ENGINE COOLING. ADAPTER, Engine Oil Filter \(Pentastar V6\) For all 2014MY replace the Oil Filter Adapter \(OFA\). For any other MY review and follow instructions from the latest STAR Online S1809000007 available on Dealer Connect. Also, consider the following: 1\) Remove OFA 2\) Replace only the oil inlet O\-ring and gaskets \(seals kit in SOL above\). 3\) Re\-install the OFA. For 2023MY and beyond use black O\-ring. For 2022MY and prior use red O\-ring. Note: When replacing OFA, it may be necessary to transfer the Oil Temp/Pressure Sensor from the old OFA to the new OFA. - [0700723](/bulletins/10239957.md), 2023-07-31, Service bulletin: ENGINE AND ENGINE COOLING. Water Quality When Mixed With Engine Coolant - [1804823](/bulletins/10236933.md), 2023-05-30, Service bulletin: EQUIPMENT; ENGINE AND ENGINE COOLING. wiTECH Small Leak Verification Test \(SLVT\) \- P0456\-EVAP SYSTEM SMALL LEAK - [9003357a](/bulletins/10234379.md), 2023-04-17, Service bulletin: ENGINE AND ENGINE COOLING. ADAPTER, Engine Oil Filter \(Pentastar V6\) For all 2014MY replace the Oil Filter Adapter \(OFA\). For any other MY review and follow instructions from the latest STAR Online S1809000007 available on Dealer Connect. Also, consider the following: 1\) Remove OFA 2\) Replace only the oil inlet O\-ring and gaskets \(seals kit in SOL above\). 3\) Re\-install the OFA. For 2023MY and beyond use black O\-ring. For 2022MY and prior use red O\-ring. Note: When replacing OFA, it may be necessary to transfer the Oil Temp/Pressure Sensor from the old OFA to the new OFA. - [9003357](/bulletins/10234378.md), 2023-04-17, Service bulletin: ENGINE AND ENGINE COOLING. ADAPTER, Engine Oil Filter \(Pentastar V6\) For all 2014MY replace the Oil Filter Adapter \(OFA\). For any other MY \(with mileage above 30,000\) review and follow instructions from STAR Online S1809000007 REV. C available on Dealer Connect. Also, consider the following: 1\) Remove OFA 2\) Replace only the oil inlet O\-ring and gaskets \(seals kit in SOL above\). 3\) Re\-install the OFA. For 2023MY and beyond use black O\-ring. For 2022MY and prior use red O\-ring. Note: When replacing OFA, it may be necessary to transfer the Oil Temp/Pressure Sensor from the old OFA to the new OFA. JSON: [/v1/bulletins/10139643](/v1/bulletins/10139643) [Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%2018-018-14%20REV.%20B&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10139643&vehicle=Service%20bulletin%2018-018-14%20REV.%20B)