# Service bulletin 0900421

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: 10230142
- Published by NHTSA: 2023\-01\-17
- Manufacturer's number: 0900421
- Manufacturer's date: 2021\-05\-27
- NHTSA component: EQUIPMENT; EXTERIOR LIGHTING

## NHTSA's summary

Oil Control Valve Connector Not Seated This bulletin involves inspecting the oil control valve connector and possibly seating the connector. Customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation the technician may find the following Diagnostic Trouble Code \(DTC\) has been set: P0013 \- Bank 1 Camshaft 2 Position Actuator Circuit Open.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10230142-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10230142-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Equipment and accessories, Lighting

## Trouble codes named

P0013

## Vehicles listed

- 2021 RAM 1500
- 2021 RAM 2500
- 2021 RAM 3500
- 2021 RAM 4500
- 2021 RAM 5500

## Other bulletins for the same vehicles and component

- [0803224](/bulletins/10251879.md), 2024-03-18, Service bulletin: BACK OVER PREVENTION; ELECTRICAL SYSTEM; EXTERIOR LIGHTING. Battery Pack Control Module \(BPCM\) Software Update Customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes \(DTC\)s have been set: ? P0AC0 \- Hybrid Battery Pack Current Sensor 1 Circuit Performance. ? P1A29 \- Cell Supervisory Circuit A Failure. ? P0DE7 \- Hybrid/EV Battery Pack Cell Voltage High. ? P0ABA \- Voltage Sense A Circuit. ? P0B3D \- Hybrid Battery Voltage Sense "A" Circuit Low. ? P0B3E \- Hybrid Battery Voltage Sense "A" Circuit High. ? U3017 \- Control Module Timer/Clock Performance. ? P0E55 \- DC/DC Converter Current Sensor Circuit "A". ? P0DAF \- Hybrid/EV Battery Cell Balancing Circuit "A". ? P0AD4 \- Hybrid Battery Pack Air Flow System Insufficient Air Flow. This bulletin involves updating the BPCM with the latest available software.
- [2300424](/bulletins/10251854.md), 2024-03-18, Service bulletin: EXTERIOR LIGHTING:HEADLIGHTS. Headlamp Condensation Clearing Procedure Some customers may report that on occasion, vehicle exterior head lamp assemblies are fogged with a light layer of condensation on the inside of the lenses.
- [0800624A](/bulletins/10251848.md), 2024-03-18, Service bulletin: EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM\(GLOBAL POSITIONING SYSTEM\). Navigation \(NAV\) Reboot When MOTA Fails The customer may describe one of more of the following: ? Radio navigation continues to reboot after a Map Update \(MOTA\). ? Navigation regularly cuts out and back on again. ? Radio switches to navigation without customer's input. This bulletin involves updating the Navigation maps via USB.
- [S238A000028](/bulletins/10251795.md), 2024-03-18, Service bulletin: EQUIPMENT:ELECTRICAL:INFOTAINMENT. Radio Black Screen, Freezing, Reset, Cutting Out Or Inoperative Intermittently
- [9100287](/bulletins/10251767.md), 2024-03-18, Service bulletin: EQUIPMENT:ELECTRICAL. Thermostat Assy For 2022\-2024MY 3.6L Pentastar Upgrade with P0128 failure code. PRIOR TO PERFORMING ANY THERMOSTAT REPLACEMENT, PROCEED WITH INSPECTION INSTRUCTIONS FROM THE LATEST VERSION OF STAR ONLINE PUBLICATION S2309000014
- [0824523](/bulletins/10248941.md), 2024-01-16, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; UNKNOWN OR OTHER; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Radio Over The Air Update to Q339.3 to QR39.62 Software Version Customers may experience one or more of the following: ? Mobile Wi\-Fi inoperative upon start up. ? Hotspot gives "No Internet" connection message on phone when trying to connect to a device. This bulletin provides information regarding the latest Firmware Over The Air \(FOTA\) update and provides the service technician an overview of the steps a customer will need to take to complete the update. The radio software will be updated from Q339.3 to QR39.62. NOTE: The National launch for this FOTA update campaign is expected to begin December 04, 2023.
- [9100276](/bulletins/10248848.md), 2024-01-16, Service bulletin: EQUIPMENT. Spring Front Upr \- Isolator Before replacing this part. Please contact FCA REDACTED CONTENT. \~ If no response in 15 minutes, proceed with repair.
- [93238](/bulletins/10248592.md), 2024-01-08, Service bulletin: EQUIPMENT. AISIN K1 SNAP RING REPLACEMENT
- [S1923000044](/bulletins/10248554.md), 2024-01-08, Service bulletin: STRUCTURE; EQUIPMENT. Dust Intrusion Or Air Leak Into Cab
- [2302923](/bulletins/10248045.md), 2024-01-02, Service bulletin: EXTERIOR LIGHTING:HEADLIGHTS. Headlamp Condensation Clearing Procedure Some customers may report that on occasion, vehicle exterior head lamp assemblies are fogged with a light layer of condensation on the inside of the lenses \(Fig. 1\) . This bulletin is to communicate the procedure for head lamp condensation clearing.

JSON: [/v1/bulletins/10230142](/v1/bulletins/10230142)

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