Land Rover P2B61-73
• A revised coolant pump design and PCM software update will be released in the coming weeks to resolve this complaint. • ICA hardware is available currently. • PCM software has en
Common search variants: P2B6173 · P2B61 73 · P2B61_73 · Search ignores case and common separators.
Quick answer
For applicable 2019–2020 US Land Rover Range Rover vehicles, P2B61-73 is documented in official manufacturer communications with a variable coolant-pump shroud/slide mechanism that is slow to respond or sticking. It may be associated with a loud front-of-vehicle fan, a Check Engine MIL, and fan operation at full speed.
This page separates verified manufacturer/regulator evidence from supporting material. Unsupported causes, repairs or safety conclusions are not guessed.
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1. What does P2B61-73 mean?
For applicable 2019–2020 US Land Rover Range Rover vehicles, P2B61-73 is documented in official manufacturer communications with a variable coolant-pump shroud/slide mechanism that is slow to respond or sticking. It may be associated with a loud front-of-vehicle fan, a Check Engine MIL, and fan operation at full speed.
2. Technical explanation
NHTSA-posted Land Rover manufacturer communications state that P2B61-73 and P26CB-72 can set when the variable coolant-pump shroud is slow to respond to a command to open or close. A separate communication states that the variable-pump slide mechanism may stick; under that condition, 100% cooling-fan duty cycle is normal operation. The communications refer to a revised coolant-pump design, ICA hardware availability, and PCM software updates/deployment.
3. What system is affected?
Engine cooling system; specifically the AJ20P4 variable coolant-pump shroud/slide mechanism and related PCM control strategy.
4. How serious is this code?
Not yet established by verified evidence.
5. Symptoms you may notice
- Loud noise from the front of the vehicle.
- Check Engine MIL illuminated.
- Engine cooling fan running at full speed or excessively.
6. Possible causes
- The variable coolant-pump shroud is slow to respond to a request to open or close.
- The variable-pump slide mechanism is sticking.
7. Can I still drive the vehicle?
Not yet established by verified evidence.
8. Can I charge the vehicle?
Not yet established by verified evidence.
9. What you can safely do
- Arrange diagnosis with an authorized Land Rover retailer or qualified service provider.
- Provide the stored DTC P2B61-73 and report whether the cooling fan is noisy, excessive, or running at full speed.
- Do not attempt high-voltage or cooling-system repairs based on this information.
10. Step-by-step troubleshooting
- Verify whether P2B61-73 and/or P26CB-72 are stored.
- Confirm the vehicle's applicability, engine configuration, and relevant Land Rover service information.
- Evaluate the variable coolant-pump shroud/slide mechanism response as directed by manufacturer service procedures.
- Check for applicable PCM software updates and applicable hardware actions through Land Rover service information.
11. When to contact service
Service evaluation is appropriate because the official communications identify a revised coolant-pump design, available ICA hardware, and PCM software updates as measures associated with this complaint.
12. What the service center may check
- Retrieve and document DTC P2B61-73 and any accompanying P26CB-72.
- Assess whether the variable coolant-pump shroud responds correctly to open/close requests.
- Assess for a sticking variable-pump slide mechanism.
- Determine availability and applicability of revised coolant-pump hardware/ICA hardware.
- Determine whether the vehicle is eligible for the referenced PCM software update.
13. Possible repair or resolution
- Official communications describe a revised coolant-pump design and PCM software update as the intended resolution for the complaint.
- ICA hardware was stated to be available in the April 2020 communication.
- Final repair selection and applicability must be determined using current Land Rover service information.
14. Affected vehicles
- Land Rover Range Rover · 2019–2020 · US
15. Related TSBs / service bulletins
- NHTSA Manufacturer Communication 10174474, SFCC_APR20_PG24, published April 9, 2020: covers AJ20P4-equipped vehicles and states that P2B61-73 and/or P26CB-72 may be present; it identifies a sticking variable-pump slide mechanism and full-speed fan operation.
- NHTSA Manufacturer Communication 10183545, SFCC_NOV2020_36, published November 19, 2020: states that P2B61-73 and P26CB-72 can set when the variable coolant-pump shroud is slow to respond to an open/close request.
16. Recall information
- No recall information was supplied in the verified evidence.
17. Official manufacturer information
Verified sources: NHTSA-posted Land Rover manufacturer communications 10174474 (April 9, 2020) and 10183545 (November 19, 2020). Applicability supplied: 2019–2020 Land Rover Range Rover, US. The communications also reference other AJ20P4-equipped Land Rover and Jaguar models, but vehicle-specific applicability should be confirmed by service records and current manufacturer information.
19. Frequently asked questions
What does P2B61-73 indicate in the supplied Land Rover evidence?
It is documented as setting when the variable coolant-pump shroud is slow to respond to a request to open or close.
Can P2B61-73 cause a loud cooling fan?
The supplied communications associate this code with complaints of loud noise from the front of the vehicle and cooling-fan operation at full speed. They state that 100% fan duty cycle is normal operation when the variable-pump slide mechanism is sticking.
Is there an official repair direction?
The communications reference a revised coolant-pump design, ICA hardware availability, and PCM software updates. Exact repair applicability is not established by the supplied evidence and must be confirmed by Land Rover service information.
Is it safe to drive or charge with P2B61-73?
Not yet established by verified evidence.