Volvo U112B87
2021 0439208-9999999 202037-202103 Page 2 of 2 2020-12-03 Technical Journal 35774.1.0 SERVICE: Please ignore the DTC’s PSCM-U230057 and PSCM-U112B87 since they cause no steering sy
Quick answer
For the specified 2021 US Volvo XC40, PSCM DTC U112B87 is documented by Volvo as a permanent code that, when no steering symptoms or warning messages are present, did not require fault tracing or repair under Technical Journal 35774. Volvo stated the code could not be erased with VIDA in the cited bulletin revision.
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 U112B87 mean?
For the specified 2021 US Volvo XC40, PSCM DTC U112B87 is documented by Volvo as a permanent code that, when no steering symptoms or warning messages are present, did not require fault tracing or repair under Technical Journal 35774. Volvo stated the code could not be erased with VIDA in the cited bulletin revision.
2. Technical explanation
Verified evidence identifies U112B87 as a permanent Diagnostic Trouble Code stored in the PSCM (Power Steering Control Module). Volvo Technical Journal 35774 covered the 2021 XC40 Electric (type 536, E400V6) within the listed chassis and structure-week ranges. The December 2020 and February 2021 revisions state that PSCM-U112B87 and PSCM-U230057 caused no customer steering symptoms or vehicle warning messages in the condition addressed. Volvo instructed service personnel to ignore the codes / not fault-trace or repair them when there were no symptoms or warning messages. The March 2021 revision similarly stated that no fault tracing or repair was needed at that time as long as there were no symptoms or warning messages. A software time plan was not yet known in the cited evidence.
3. What system is affected?
Power Steering Control Module (PSCM).
4. How serious is this code?
Not yet established by verified evidence. Volvo’s bulletin-specific guidance says no fault tracing or repair was needed for this documented condition when there were no steering symptoms or warning messages.
5. Symptoms you may notice
- Volvo stated that the condition addressed by the December 2020 and February 2021 bulletin revisions caused no steering symptoms for the customer.
- Volvo stated that the condition addressed did not produce warning messages in the vehicle.
- If steering symptoms or warning messages are present, the bulletin’s no-repair guidance does not apply; the appropriate cause is not established by the supplied evidence.
6. Possible causes
- The supplied evidence does not establish a root cause for U112B87.
- The cited Volvo technical journal addresses a PSCM software-related handling condition and states that a software time plan was not yet known in the March 2021 revision.
7. Can I still drive the vehicle?
Not yet established by verified evidence. The supplied Volvo guidance only says that fault tracing or repair was not needed for the addressed condition when no steering symptoms or warning messages were present.
8. Can I charge the vehicle?
Not yet established by verified evidence.
9. What you can safely do
- Check whether any steering symptoms or vehicle warning messages are present.
- If there are no steering symptoms or warning messages, note that Volvo Technical Journal 35774 instructed technicians not to fault-trace or repair this documented PSCM code condition at that time.
- Have a Volvo retailer or qualified service provider assess the vehicle if steering symptoms or warning messages are present.
- Do not attempt high-voltage system repairs based on this code.
10. Step-by-step troubleshooting
- Confirm the code is stored in the PSCM and is reported as permanent.
- Check for steering symptoms and warning messages.
- For the no-symptom/no-warning condition covered by Technical Journal 35774, follow Volvo’s bulletin guidance rather than pursuing fault tracing solely for U112B87.
- The supplied evidence does not establish additional diagnostic procedures.
11. When to contact service
Contact a Volvo retailer or qualified service provider if steering symptoms or warning messages are present. The supplied evidence does not establish a self-repair procedure.
12. What the service center may check
- Verify vehicle applicability: 2021 Volvo XC40, US, type 536; the cited bulletins list Electric E400V6 and specified chassis/structure-week ranges.
- Check whether U112B87 is stored in the PSCM as a permanent DTC.
- Check for customer steering symptoms and vehicle warning messages.
- Review the current Volvo service information, because the cited bulletin revisions stated that a software time plan was not yet known or referred to software availability.
13. Possible repair or resolution
- For the bulletin-covered condition with no steering symptoms or warning messages, Volvo stated there was no need to fault-trace or repair U112B87 at that time.
- The December 2020 bulletin revision stated that the code could not be erased with VIDA.
- A specific repair or final software resolution is not established by the supplied evidence.
14. Affected vehicles
- Volvo XC40 · 2021 · US
15. Related TSBs / service bulletins
- Volvo Technical Journal 35774.1.0, dated 2020-12-03; NHTSA manufacturer communication MC-10186178. It instructed technicians to ignore PSCM-U230057 and PSCM-U112B87 when no steering symptoms or warning messages were present, and stated that no warranty claim was accepted for work described in that journal.
- Volvo Technical Journal 35774.2.0, dated 2021-02-18; NHTSA manufacturer communication MC-10188878. It stated there was no need to fault-trace or repair the codes when no symptoms or warning messages were present.
- Volvo Technical Journal 35774.3.0, dated 2021-03-18; NHTSA manufacturer communication MC-10190806. It stated there was no need to fault-trace or repair the codes at that time when no symptoms or warning messages were present; a PSCM software time plan was not yet known.
16. Recall information
- No recall information is established by the supplied verified evidence.
17. Official manufacturer information
Official NHTSA-hosted Volvo manufacturer communications: MC-10186178 (TJ35774.1.0), MC-10188878 (TJ35774.2.0), and MC-10190806 (TJ35774.3.0).
19. Frequently asked questions
What does U112B87 affect?
The supplied evidence identifies the affected module as the PSCM, or Power Steering Control Module.
Does U112B87 require repair?
For the specific bulletin-covered condition, Volvo said fault tracing or repair was not needed when there were no steering symptoms or warning messages. A general repair requirement is not established by the supplied evidence.
Can U112B87 be cleared with VIDA?
The December 2020 revision of Technical Journal 35774 stated that the codes could not be erased with VIDA.
What if there is a steering warning message or steering symptom?
The bulletin’s no-repair guidance is explicitly conditional on there being no symptoms or warning messages. Further diagnosis should be performed by a Volvo retailer or qualified service provider; the supplied evidence does not establish the cause or repair in that situation.