P2066 · Herstellerinformationen

JEEP · 2026-04-18

Flash: Powertrain Control Module (PCM) Updates **Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs):** ● **P0300 - Multiple Cylinder Misfire - In Active or Stored status set during cold start catalyst heating. ● P0301 - Cylinder 1 Misfire - In Active or Stored status set during cold start catalyst heating. ● P0302 - Cylinder 2 Misfire - In Active or Stored status set during cold start catalyst heating. ● P0303 - Cylinder 3 Misfire - In Active or Stored status set during cold start catalyst heating. ● P0304 - Cylinder 4 Misfire - In Active or Stored status set during cold start catalyst heating. ● P0305 - Cylinder 5 Misfire - In Active or Stored status set during…

JEEP · 2026-04-18

Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● **P0300 - Multiple Cylinder Misfire - In Active or Stored status set during cold start catalyst heating. ● P0301 - Cylinder 1 Misfire - In Active or Stored status set during cold start catalyst heating. ● P0302 - Cylinder 2 Misfire - In Active or Stored status set during cold start catalyst heating. ● P0303 - Cylinder 3 Misfire - In Active or Stored status set during cold start catalyst heating. ● P0304 - Cylinder 4 Misfire - In Active or Stored status set during cold start catalyst heating. ● P0305 - Cylinder 5 Misfire - In Active or Stored status set during cold…

GENESIS · 2025-05-13

Certain 2025MY GV80 and GV80 Coupe (JX1) vehicles equipped with the 3.5T-GDI Lambda III engine may NOT experience a warning lamp illumination of DTC P0461/P2066 when the calculated fuel consumption and the fuel consumption calculated from the fuel level sensor signal is over its threshold value. Follow the service procedure outlined in this bulletin to update the engine control module to revise the fuel level sensor warning light logic.

GENESIS · 2025-05-13

Certain 2025MY GV80 and GV80 Coupe (JX1) vehicles equipped with the 3.5T-GDI Lambda III engine may NOT experience a warning lamp illumination of DTC P0461/P2066 when the calculated fuel consumption and the fuel consumption calculated from the fuel level sensor signal is over its threshold value.

JEEP · 2025-03-01

"Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): ● P2066 - Fuel Level Sensor 2 Performance. Customers may experience the following: ● When overriding the electric park brake (EPB) while it remains engaged due to unbuckled seat belt in Drive or Reverse, the high torque request with the parking brake engaged may lead to Rear Drive Unit (RDU) damage/broken."

MERCEDES-BENZ, MERCEDES-MAYBACH · 2025-02-21

Complaint Customer-perceived problem: • Fuel gauge reading implausible • MIL ON (market-dependent) N118/3 Fault codes in control units FSCM_GEN4/5/6 • For these fault codes, the tests contained in XENTRY must be carried out P046109 / P206609 / P13E600 • For these fault codes, the connector couplings/wiring harness routing must be checked for damage P206600 / P046100 Cause Various Remedy Carry out XENTRY tests for the listed fault codes in the FSCM (N118) and document the monitor graphics for the primary/ secondary lever-type sensors.

MERCEDES-BENZ, MERCEDES-MAYBACH · 2025-01-24

Complaint Customer-perceived problem: • Fuel gauge reading implausible • MIL ON (market-dependent) N118/3 Fault codes in control units FSCM_GEN4/5/6 • For these fault codes, the tests contained in XENTRY must be carried out P046109 / P206609 / P13E600 • For these fault codes, the connector couplings/wiring harness routing must be checked for damage P206600 / P046100 Cause Various Remedy Carry out XENTRY tests for the listed fault codes in the FSCM (N118) and document the monitor graphics for the primary/ secondary lever-type sensors.

JEEP · 2024-09-07

"Flash: Powertrain Control Module (PCM) Updates **Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Code (DTC): ● **P2066 - Fuel Level Sensor 2 Performance.** ● C053D - Brake Pressure Sensor 1 Performance. **Customers may experience one or more of the following: ● When the driver attempts to override the Electric Park Brake (EPB) while it remains engaged due to an unbuckled seatbelt in Drive or Reverse, the high torque request with the park brake engaged may lead to a damaged or broken Rear Drive Unit (RDU). ● MIL illuminates when fueling the vehicle while the engine is running. ● Lower fuel economy reported by the Instrument Panel Cluster (IPC). ● Rough engine idle during warm up. ●…

JEEP · 2024-09-07

"Flash: Powertrain Control Module (PCM) Updates **Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): ● P2066 - Fuel Level Sensor 2 Performance. Customers may experience one or more of the following: ● When the driver attempts to override the Electric Park Brake (EPB) while it remains engaged due to an unbuckled seatbelt in Drive or Reverse, the high torque request with the park brake engaged may lead to a damaged or broken Rear Drive Unit (RDU). ● MIL illuminates when fueling the vehicle while the engine is running. ** ● Lower fuel economy reported by the Instrument Panel Cluster (IPC). ● Rough engine idle during warm up. ● Vehicle turns off while idling in park. This bulletin involves…

JEEP · 2024-08-29

"Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): ● P2066 - Fuel Level Sensor 2 Performance. Customers may experience one or more of the following: ● When the driver attempts to override the Electric Park Brake (EPB) while it remains engaged due to an unbuckled seatbelt in Drive or Reverse, the high torque request with the park brake engaged may lead to a damaged or broken Rear Drive Unit (RDU). ● MIL illuminates when fueling the vehicle while the engine is running. This bulletin involves reprogramming the PCM with the latest available software."

JEEP · 2024-08-29

"Flash: Powertrain Control Module (PCM) Updates **Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): ● P2066 - Fuel Level Sensor 2 Performance. Customers may experience one or more of the following: ● When the driver attempts to override the Electric Park Brake (EPB) while it remains engaged due to an unbuckled seatbelt in Drive or Reverse, the high torque request with the park brake engaged may lead to a damaged or broken Rear Drive Unit (RDU). ● MIL illuminates when fueling the vehicle while the engine is running. ** ● Lower fuel economy reported by the Instrument Panel Cluster (IPC). ● Rough engine idle during warm up. ● Vehicle turns off while idling in park. In addition, the following…

CHRYSLER, DODGE · 2017-08-18

Flash: Powertrain Diagnostic and System Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with thelatest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following DiagnosticTrouble Codes (DTCs) have been set:P2066 - Fuel Level Sensor 2 Performance (Sales Codes ERB with AHB or AHV only). P0335 - Crankshaft Position Sensor Circuit. P0456 - EVAP System Small Leak. P2610 - PCM Internal Engine Off Timer Performance. In addition to the above DTCs, this software release also includes:Enhancements to the disable misfire monitor when P0335 is present. Add a global disable to small leak monitor when the fuel level is above88%. Update small leak diagnostic to…

RAM · 2016-08-19

Flash: 6.4L Diagnostic And System Improvements This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software. NOTE: **This bulletin contains optional software update that should only be used in situations where the customer is specifically complaining of a Drone Noise, Shudder, Pulsation, or Vibration under light throttle applications while vehicle is operating in MDS/ECO mode. There will be two separate software options displayed on the wiTECH flash tab. The software file released for this condition contains the verbiage ?OPTIONAL?. The other file is the standard software that does not contain improvements for the Drone/Shudder concern. If for some reason the customer finds this shudder improvement objectionable, the PCM software may…

RAM · 2015-11-04

Flash: 6.4L Diagnostic And System Improvements This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the Technician may find one or more of the following Diagnostic Trouble Codes (DTCs) have been set: ? P0300 - Multiple Cylinder Misfire, cold Idle misfire (DJ,D2 or DD vehicles only). ? P030X - Cylinder Misfire (any cylinder) (Additional improvements over the last software update). ? P04D1 - Cooled EGR Temperature Sensor Circuit High. ? P04D0 - Cooled EGR Temperature Sensor Circuit Low. ? P2504 - Charging System Output High. ? P0441 - Evap Purge System Performance. ? P2066 - Fuel Level Sensor 2 Performance. ? P0401 - EGR System…

RAM · 2014-09-16

Flash: Malfunction Indicator Lamp (MIL) Illumination. Includes Various Driveability Improvements This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the Technician may find that the following Diagnostic Trouble Codes (DTCs) have been set: (Further improvements over what was released in SB 18-004-14) (applies only to DD/DP vehicles) (applies only to DD/DP vehicles) P2066 - Fuel Level Sensor 2 Performance (applies only to DJ/D2 vehicles) P0441 - Evap Purge System Performance P2504 - Charging System Output High P04D0 - Cooled EGR Temperature Sensor Circuit Low P04D1 - Cooled EGR Temperature Sensor Circuit High…

RAM · 2014-09-16

Flash: Malfunction Indicator Lamp (MIL) Illumination. Includes Various Driveability Improvements This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the Technician may find that the following Diagnostic Trouble Codes (DTCs) have been set: (Further improvements over what was released in SB 18-004-14) (applies only to DD/DP vehicles) (applies only to DD/DP vehicles) P2066 - Fuel Level Sensor 2 Performance (applies only to DJ/D2 vehicles) P0441 - Evap Purge System Performance P2504 - Charging System Output High P04D0 - Cooled EGR Temperature Sensor Circuit Low P04D1 - Cooled EGR Temperature Sensor Circuit High…

RAM · 2014-04-16

Flash: Malfunction Indicator Lamp (MIL) Illumination. Includes Various Driveability Improvements This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the Technician may find that the following Diagnostic Trouble Codes (DTC?s) have been set: (Further improvements over what was released in SB 18-004-14) (applies only to DD/DP vehicles) (applies only to DD/DP vehicles) P2066 - Fuel Level Sensor 2 Performance (applies only to DJ/D2 vehicles) P0441 - Evap Purge System Performance P2504 - Charging System Output High P04D0 - Cooled EGR Temperature Sensor Circuit Low P04D1 - Cooled EGR Temperature Sensor Circuit High

RAM · 2014-04-16

Flash: Malfunction Indicator Lamp (MIL) Illumination. Includes Various Driveability Improvements This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the Technician may find that the following Diagnostic Trouble Codes (DTC?s) have been set: (Further improvements over what was released in SB 18-004-14) (applies only to DD/DP vehicles) (applies only to DD/DP vehicles) P2066 - Fuel Level Sensor 2 Performance (applies only to DJ/D2 vehicles) P0441 - Evap Purge System Performance P2504 - Charging System Output High P04D0 - Cooled EGR Temperature Sensor Circuit Low P04D1 - Cooled EGR Temperature Sensor Circuit High

RAM · 2014-01-31

Flash: Malfunction Indicator Lamp (MIL) Illumination This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the Technician may find that the following Diagnostic Trouble Codes (DTC?s) have been set: (applies only to vehicles equipped with a 66RFE sales code DFP) (applies only to DD/DP vehicles) (applies only to DD/DP vehicles) P2066 - Fuel Level Sensor 2 Performance (applies only to DJ/D2 vehicles) P0441 - Evap Purge System Performance

CHEVROLET, GMC · 2013-08-01

This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp on. Technician may find Diagnostic Trouble Codes P0087, P0461, P2066, P128E, P2632, P2633, P2634, and P2636. Technician should ensure that the scan tool is up to date with version 33.003 or higher then continue with published Service Information diagnostics for the Diagnostic Trouble Codes that are set.

CHEVROLET · 2013-08-01

GM: TECHNICIAN MAY BE UNABLE TO COMMAND PUMP TOOL TRANSFER PUMP ON WITH SCAN TOOL. SES MIL MAY BE ON WITH ONE OR MORE OF DTCS P0087 P0461 P2066 P028E P2632 P2633 P2634 AND/OR P2636. ALSO INCLUDED MAKE/MODEL GMC SIERRA 3500 MODEL YEAR 2013. *JS

CHEVROLET · 2009-04-01

GENERAL MOTORS: FUEL SYSTEM DTC'S P2066, P2636. A COMMENT MADE ON THE ACCURACY OF THE FUEL GAUGE. IN SOME RARE CASES, THEY MAY COMMENT THAT THE VEHICLE RUNS OUT OF FUEL AT APPROX. 1/4 TANK. *PE

CADILLAC · 2008-02-01

INACCURATE FUEL GAGE READINGS, FUEL GAGE READS EMPTY WHEN THERE IS FUEL IN TANK, FUEL LEVEL LOW MESSAGE IN DIC, DTC P2066 SET (REPROGRAM ECM). WITH 2.8L OR 3.6L ENGINE (VINS T, 7 - RPO'S LP1, LY7). *NJ

CHEVROLET · 2008-02-01

ERRATIC FUEL GAUGE OPERATION DTC'S P2066 AND/OR P2636. *NJ

CADILLAC · 2007-10-01

FUEL GAUGE STUCK ON EMPTY DTC P2066 (2.8L (LP1) OR 3.6L (LY7) ENGINES). *NJ

HYUNDAI · 2006-07-01

DUAL FUEL LEVEL SENDER SYSTEM - DTC P2065, P2066, P2067, P2068 - SHOP MANUAL. *TT

CHRYSLER · 2004-08-10

MALFUNCTION INDICATOR LAMP ILLUMINATION DIAGNOSTIC TROUBLE CODE (DTC) P2066 FUEL LEVEL SENSOR. *TT

CADILLAC · 2003-06-01

DIAGNOSTIC INFORMATION FOR FUEL GAUGE READING EMPTY AFTER FILLING TANK WITH VEHICLE RUNNING, DIAGNOSTIC TROUBLE CODE P0461 OR P2066 MAY SET. *TT