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Volvo P090162

If above Diagnostic Trouble Codes (DTCs) are set, follow advice under “Service”. ERAD=Electric Rear Axle Drive IEM = Inverter ERAD Module SERVICE: Revised IEM software has been rel

DriveNot yet established by verified evidence.
ChargeNot yet established by verified evidence.
ServiceContact a Volvo retailer or qualified service facility for diagnosis and to determine whether the revised IEM software upgrade applies.
Confidence95%

Quick answer

For Volvo S90, XC60, and XC90 vehicles from model years 2017–2018 in the US, P090162 is listed as an intermittent DTC in the IEM (Inverter ERAD Module). Volvo Technical Journal 33723.1.0 states that revised IEM software was released and directs service personnel to upgrade the software.

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 P090162 mean?

For Volvo S90, XC60, and XC90 vehicles from model years 2017–2018 in the US, P090162 is listed as an intermittent DTC in the IEM (Inverter ERAD Module). Volvo Technical Journal 33723.1.0 states that revised IEM software was released and directs service personnel to upgrade the software.

2. Technical explanation

ERAD means Electric Rear Axle Drive, and IEM means Inverter ERAD Module. In the cited Volvo technical journal, P090162 is listed under the IEM with fault status “Intermittent.” The bulletin directs technicians to follow the Service advice when this DTC is set; the supplied evidence states that revised IEM software has been released and that an IEM software upgrade is to be performed.

3. What system is affected?

Inverter ERAD Module (IEM) / Electric Rear Axle Drive (ERAD).

4. How serious is this code?

Not yet established by verified evidence.

5. Symptoms you may notice

  • P090162 may be stored as an intermittent DTC in the IEM.
  • The cited technical journal is associated with front/rear axle unusual-noise and vibration/shake complaint categories, but the supplied evidence does not establish that every vehicle with P090162 will have these symptoms.

6. Possible causes

  • The verified technical journal identifies a revised IEM software release as the specified service direction.
  • A specific underlying hardware or electrical cause for P090162 is not yet established by verified evidence.

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 by an authorized Volvo service provider or other qualified technician.
  • Provide the technician with DTC P090162 and reference Volvo Technical Journal 33723.1.0.
  • Do not attempt high-voltage or inverter repair procedures yourself.

10. Step-by-step troubleshooting

  1. Confirm the stored DTC, control module, and fault status with appropriate diagnostic equipment.
  2. Check whether Volvo Technical Journal 33723.1.0 applies to the vehicle.
  3. Follow the bulletin’s stated service direction for a revised IEM software upgrade.

11. When to contact service

Contact a Volvo retailer or qualified service facility for diagnosis and to determine whether the revised IEM software upgrade applies.

12. What the service center may check

  • Verify that P090162 is present in the IEM and recorded as intermittent.
  • Confirm vehicle applicability: US-market 2017–2018 Volvo S90, XC60, or XC90.
  • Check software status and perform the revised IEM software upgrade as directed by Volvo Technical Journal 33723.1.0.

13. Possible repair or resolution

  • The verified service action is an upgrade to revised IEM software.
  • Whether the software upgrade resolves an individual vehicle’s condition is not yet established by verified evidence.

14. Affected vehicles

15. Related TSBs / service bulletins

  • Volvo Technical Journal 33723.1.0, published May 8, 2018; NHTSA Manufacturer Communication 10149954.
  • Volvo Technical Journal 33723.1.0, published May 15, 2018; NHTSA Manufacturer Communication 10164136.
  • Both supplied NHTSA manufacturer communications list P090162 as an intermittent IEM DTC and state that revised IEM software has been released.

16. Recall information

  • Not yet established by verified evidence.

17. Official manufacturer information

Official NHTSA-hosted manufacturer communication: https://static.nhtsa.gov/odi/tsbs/2018/MC-10164136-9999.pdf

19. Frequently asked questions

What does P090162 refer to in this Volvo bulletin?

It is listed as an intermittent Diagnostic Trouble Code in the IEM, which Volvo defines as the Inverter ERAD Module.

What is ERAD?

ERAD means Electric Rear Axle Drive.

What service action does the Volvo bulletin specify?

The bulletin states that revised IEM software has been released and directs an IEM software upgrade.

Which vehicles are covered by the supplied applicability data?

US-market 2017–2018 Volvo S90, XC60, and XC90 vehicles.

Is it safe to drive or charge with P090162?

Not yet established by verified evidence.

20. Sources & verification

Verified
Volvo P090162: If above Diagnostic Trouble Codes (DTCs) are set,… | EV Diagnostics