2021 Jeep Wrangler 4xe TSBs

have fault codes P07E4, P1DB2, P0716, P1B14, P0733, P1D90, P1DB7, P1B13.

P0A0A-00 High Voltage System Interlock Circuit A Is Active

Upon further investigation the technician must find one or more of the following Diagnostic Trouble Codes (DTC)s have been set: P2450 - Fuel Tank Isolation Valve Stuck Open. P1D83 - Implausible Engine Oil Temperature Signal Received. Customers may comment on one or more of the following: Fuel Door will not open due to intermittent Fuel Tank Isolation Valve (FTIV) Stuck Open. Reduced fuel efficiency. In addition, the following software enhancement is available: Hood Switch changes. This bulletin involves reprogramming the PCM, HCP and AHCP, also known as the Power Inverter Module (PIM) with the latest available software

Before replacing this part due to Engine Light On with P1CEA (Boost Side EVAP Purge System Performance), check for: 1) Improperly connected or kinked/pinched Purge Hoses at the Ejector Tees on the Air Box or Duct. 2) Improperly connected or kinked/pinched Purge Hose at the Purge Solenoid or OBD Valve. 3) Improperly connected or kinked/pinched Purge Hose at the Intake. 4) Check for the correct Purge Hoses installation.

There may also be associated driveability issues. Upon further investigation, the following fault codes may be found in the PCM:

the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): P0B0D-00 - Electric/Auxiliary Transmission Fluid Pump Motor Control Module. Customers may also comment on the following: Vehicle is in limp mode This bulletin involves replacing the transmission oil pump.

that were not used in this application. To simplify the design, the connector has been optimized and updated to a 10-pin configuration.

engine idle when cold starting the engine. Low coolant level in coolant recovery bottle.

roller-finger followers (rocker arms) separately, as these are included in the camshaft parts kit.

has become detached, it is not necessary to replace the glass assembly. For loose or detached electrical tab, refer to TSB 23-007-25 for repair procedures on reattaching a loose tab. For burned or discolored gridlines on hard tops, DO NOT change the complete Flipper glass assembly. This discoloration is oxidation of the ceramic silver material and is normal. The Engineering standard call out the fact that this bus bar will change in color and is not a deterioration of the material or performance.

must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): B273C-00 - Digital Crash Input. U0287-00 - Lost Communication With Transmission Fluid Pump Module 1. Customers may also experience one or more of the following: Vehicle shakes during a cold start. Noise is heard from the underbody near the P2 motor. This bulletin involves repairing the High Voltage (HV) cable harness to the Power Inverter Module (PIM)"

installed in the vehicle.

installed in the vehicle.

All Promaster (VF) 3.6L/62TE equipped vehicles. If the transmission bracket to the transmission case fasteners are removed during servicing, the fasteners (Part Number 06511385A$) are one-time usage. Vehicles built prior to 10/23/2015 requires Service Kit PN 68461214AA; includes Transmission Isolator PN 68264483AA, and Adaptation Bracket 68264479AA and Fastener Service Kit PN 68329056AA Vehicles built after on or after 10/23/2015 will require only the Fastener Service Kit PN 68329056AA. 2. All 3.6L/62TE equipped vehicles. If the vehicle you are repairing has a crack in the flex plate or failed pump bushing inspect and confirm that both (2) dowel pins are present in the engine block, which align the transmission center line to the crank shaft centerline and visually inspect the dowel alignment holes in the transmission case. If the holes are damaged or elongated the transmission should be replaced to prevent further damage to the transmission/flexplate or pump bushing due to the inability to properly align the engine to the transmission during the repair. 3. All 62TE equipped vehicles. If pump bushing is scored or damaged and the dowel pin alignment holes are ok, replace the pump assembly as opposed to complete transmission. 4. All 62TE equipped vehicles. If vehicle is jerking/slipping with MIL code(s) P0740 or P2764, check TCC Solenoid operation. If TCC Solenoid is ok, the codes are indicative of a torque converter failure. Replace the torque converter.

Grand Cherokee (WL)

Grand Cherokee (WL)

(MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): P0DAB-00 - Hybrid/EV Cell Balancing Performance. P0BBE-00 - Hybrid Battery Pack Voltage Variation. P1C5E-00 - Battery State Of Health Failed. P0B24-00 - Hybrid/EV Battery "A" Voltage Unstable. P0B28-00 - Hybrid/EV Battery "B" Voltage Unstable. NOTE: Any warranty qualifying issues outside of these specific DTCs will continue to be covered per the HV battery standard warranty coverage. Battery packs may contain cells with separator damage. Customers may comment on the following: Service Charging System message displayed in the Instrument Panel Cluster (IPC) and charging is inhibited. This bulletin involves replacing the high voltage battery pack.

Battery Charging Message, Presence of IBS Related Diagnostic Trouble Codes (DTCs), or Battery Warning Lamp On

illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs):** **P0B28-00 - Hybrid/EV Battery B Voltage Unstable. P0BBE-00 - Hybrid/EV Battery Pack Voltage Variation. P0AA1 - Hybrid/EV Battery Positive Contactor A Stuck Closed. P0C78 - Hybrid/EV Battery System Precharge Time Too Long. P0CA6 - Hybrid/EV Battery Charging Current High. P0B24 - Hybrid/EV Battery "A" Voltage Unstable. P1C5E - Hybrid/EV Battery State Of Health Failed.** P1A21-00 - HV Battery Contactor Control Sequence Incorrect. P0B3E-00 - Hybrid/EV Battery Voltage Sense 1 Circuit High. P0607-00 - ECU Internal Performance. P1E1B-00 - Hybrid/EV Battery Side Voltage System Isolation. P0AA4-00 - Hybrid Battery Negative Contactor Circuit Stuck Closed. P1C00-00 - Hybrid/EV Battery Voltage Sense 1 Out Of Range Low. P1C01-00 - Hybrid/EV Battery Voltage Sense 1 Out Of Range High. P1A9B-00 - Hybrid/EV Battery Temperature Sensor 1 Out Of Range High. P0BBD-00 - Hybrid Battery Pack Voltage Variation Exceeded Limit. P167B-00 - Controlled System Shutdown. U1885-00 - Battery Energy Control Module Lost Communication With HCP. P0EDD-00 - Hybrid/EV Battery Pack B Deterioration. U0111 - Lost Communication With Hybrid Battery Pack Sensor Module. P0CA7-00 - Hybrid/EV Battery Discharging Current High. P1A0C-00 - Battery Energy Control Module System Voltage Low. J08 FSAR-TSB-6892 -2- **Customers may also comment on the following: Vehicle does not start. NOTE: The no start condition is accompanied with the following DTCs: P0DAB-00, P0607-00, P0AA1, P0AA4, P0C78, P0CA6, P0B24 and/or P1C5E. P0B28 will result in a MIL for 49 days. After 49 days of the MIL, the vehicle will no longer be allowed to start.** This bulletin involves reprogramming the BPCM with the latest available software. NOTE: Additional module flashes are requ

DTC C1252-92 VACUUM PUMP CONTROL CIRCUIT And Or P258B ELECTRONIC VACUUM PUMP PERFORMANCE

illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs):** B143B-12 - ANC Microphone 1-Circuit Short To Battery. B143C-12 - ANC Microphone 2-Circuit Short To Battery. B143E-12 - ANC Microphone 3-Circuit Short To Battery. B143F-12 - ANC Microphone 4-Circuit Short To Battery. NOTE: The DTCs are wrongly set and do not affect Active Noise Cancellation (ANC) performance This bulletin involves updating the AMP with the latest available software.

about vehicle theft due to ability of key FOBs to be programmed through RFHM. Software enhancement includes: Update to the RFHM software to prevent unauthorized keyfob programming. This is intended to deter an unwanted drive off of the vehicle without the customer's knowledge. This bulletin involves updating the RFHM module with the latest available software.

Tire Pressure Sensors Values Are Not Displayed

Order a Z part number for all Exchange Orders: warranty, Mopar, customer pay and service contract. Order regular part number for New unsold units only."

Battery Charging Message, Presence of IBS related Diagnostic Trouble Codes (DTCs), or Battery Warning Lamp On

to confirm part number and applicability. There is an error with the wiring diagrams in Service Library that is causing the incorrect repair kit part number to populate. Please use the Mopar Connector Repair Kit Website until this issue is resolved.

to confirm part number and applicability. There is an error with the wiring diagrams in Service Library that is causing the incorrect repair kit part number to populate. Please use the Mopar Connector Repair Kit Website until this issue is resolved.

Battery Charging Message, Presence of IBS related Diagnostic Trouble Codes (DTCs), or Battery Warning Lamp On

Vehicles

Vehicles

This bulletin involves removing corrosion and refinishing the hem area on the vehicle door.

This bulletin involves removing corrosion and refinishing the hem area on the vehicle door.

Vehicles

Vehicles

exterior surface areas of the hinges, doors, fenders, swing gates or liftgates.

exterior surface areas of the hinges, doors, fenders, swing gates or liftgates

Observation: The owner complains the top system is inoperative and that by pressing the switches the Power Top does not make any movement. Technician may or may not have Diagnostic Trouble Codes (DTCs). Repair Procedure: Perform the power top calibration prior to any switch or parts replacement.

primer when using Squeeze Type Resistance Spot Welding (STRSW) and Gas Metal Arc Welding (GMAW) processes when welding steel body panels and structural components.

primer when using Squeeze Type Resistance Spot Welding (STRSW) and Gas Metal Arc Welding (GMAW) processes when welding steel body panels and structural components.

primer when using Squeeze Type Resistance Spot Welding (STRSW) and Gas Metal Arc Welding (GMAW) processes when welding steel body panels and structural components.

Order the "R" part number for all orders:

Add felt shim 68736674AA - 43MM OD x 10mm ID x 1mm thick. "

this is normal and not a defect.

semi and full synthetic oils.

Order a "Z" part number for all Exchange Orders: Warranty, Mopar, Customer pay and Service contract. Order"68" part number for New unsold units only

Library for specifications so a suitable alternative can be used

lamps (headlamps, fog lamps, grille lamps, logo lamps or signature lamps) assemblies are fogged with a light layer of condensation on the inside of the lenses*

TPM Lamp On.

Reference Master Tech article released in January 2026 for updated diagnostic and testing procedures. Master Tech link: https: //mastertech.playerlync.net/app/player/p2tQVm

Reference Master Tech article released in December 2025 for updated diagnostic and testing procedures. Master Tech link: https: //mastertech.playerlync.net/app/player/p2tQVm

Android Auto and Apple Carplay applications may not operate with the vehicle if an aftermarket cable is being used. Verify the functionality of these applications using an OEM Apple Lightning cable or an OEM provided USB cable for Android phones before performing any additional troubleshooting. For questions regarding Android Auto or Apply Carplay functionality, please contact FCA Redacted Content. If no response in 15 minutes, proceed with repair.

Also, when reinstalling the harness, route the harness properly and secure it at all the retention points.

illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): P0810 - Clutch Position Control Error. Customers may also experience one or more of the following: K0 Adaptation routine runs when vehicle stationary and in EV Mode. Vehicle loses propulsion capability. Service transmission warning light on. NOTE: A key cycle will recover these symptoms. The following software enhancement is available: Modified the P0810 - Clutch Position Control Error set parameters This bulletin involves reprogramming the TCM with the latest available software. "

Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs) have been set: **P0DAB - Hybrid/EV Cell Balancing Performance.** P0AA4 - Hybrid/EV Battery Negative Contactor 'A' Circuit Stuck Closed. P0AA1 - Hybrid Battery Positive Contactor Circuit Stuck Closed. P0CA6 - Hybrid/EV Battery Charging Current High. P0B24 - Unstable Hybrid Battery A Voltage. P1C5E - Battery State or Health Failed. P0BBE - No Start - Loss or Reduction of Propulsion. P0607-00 - ECU Internal Performance. P0C78-00 - Hybrid/EV Battery System Precharge Time Too Long. This bulletin involves reprogramming the BPCM with the latest software available. NOTE: Additional module flashes are required for this update to be effective, the following modules are all to be updated along with this BPCM update. Powertrain Control Module (PCM). Transmission Control Module (TCM). Integrated Dual Charging Control Module (IDCM). Hybrid Control Processor (HCP), Auxiliary Hybrid Control Processor (AHCP) also known as the Power Inverter Module (PIM)"

illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC):** P0810 - Clutch Position Control Error. Customers may also experience one or more of the following: K0 Adaptation routine runs when vehicle stationary and in EV Mode. Vehicle loses propulsion capability. Service transmission warning light on. NOTE: A key cycle will recover these symptoms. **The following software enhancement is available: Modified the P0810 - Clutch Position Control Error set parameters.** **This bulletin involves reprogramming the TCM with the latest available software.** NOTE: **Please be sure that the 04B recall is completed prior to performing this TSB. This TCM software update is covered by the 04B recall if still incomplete.**"

system

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