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Chevrolet P0ABB

2.4 a total of 2 more times. Page 2 February, 2018 Bulletin No.: 17-NA-328 Service Procedure Important: Stable batt

DriveNot yet established by verified evidence.
ChargeNot yet established by verified evidence.
ServiceService is appropriate. The verified GM bulletin describes software updating, Battery Energy Control Module replacement/programming, and post-repair DTC verification.
Confidence95%

Quick answer

For a 2017 Chevrolet Bolt EV in the US, P0ABB is referenced in GM bulletin 17-NA-328 together with P1AE6. The verified bulletin directs service personnel to update HPCM2 software, install and program a new Battery Energy Control Module, then verify that P1AE6 and P0ABB do not return. The supplied evidence does not establish a plain-language definition for P0ABB.

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 P0ABB mean?

For a 2017 Chevrolet Bolt EV in the US, P0ABB is referenced in GM bulletin 17-NA-328 together with P1AE6. The verified bulletin directs service personnel to update HPCM2 software, install and program a new Battery Energy Control Module, then verify that P1AE6 and P0ABB do not return. The supplied evidence does not establish a plain-language definition for P0ABB.

2. Technical explanation

Verified evidence from NHTSA-hosted GM bulletin 17-NA-328 states that, after HPCM2 is updated to the latest calibrations, a new Battery Energy Control Module is installed and programmed. The bulletin then calls for verification that DTCs P1AE6 and P0ABB do not return. Its verification cycle is: turn the vehicle ON, turn it OFF, wait one minute for active-isolation time to run, turn it ON, check whether P1AE6 returned, and repeat this cycle two more times. The supplied evidence also states that if the referenced voltage values are within 3 V, normal service procedures for P1AE6 are to be followed. The complete measurement context is not present in the supplied excerpt.

3. What system is affected?

Battery Energy Control Module and HPCM2 are directly referenced by verified bulletin 17-NA-328. A more specific system assignment for P0ABB is not yet established by verified evidence.

4. How serious is this code?

Unknown. The supplied verified evidence does not assign a severity level.

5. Symptoms you may notice

  • Not yet established by verified evidence.

6. Possible causes

  • The supplied bulletin identifies a service path involving HPCM2 calibration and Battery Energy Control Module replacement, but it does not establish a root cause for P0ABB in the provided 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 a Chevrolet/GM-qualified service facility.
  • Do not attempt high-voltage battery or control-module repair yourself.
  • Provide the stored DTCs, including P0ABB and any accompanying P1AE6, to the service facility.

10. Step-by-step troubleshooting

  1. Have a qualified technician check whether GM bulletin 17-NA-328 applies to the vehicle and its current diagnostic results.
  2. The verified bulletin specifies updating HPCM2 to the latest calibrations before the subsequent module procedure.
  3. After the specified repair and programming, the bulletin calls for repeated ignition-cycle verification that P1AE6 and P0ABB do not return.

11. When to contact service

Service is appropriate. The verified GM bulletin describes software updating, Battery Energy Control Module replacement/programming, and post-repair DTC verification.

12. What the service center may check

  • Confirm applicability to a 2017 Chevrolet Bolt EV in the US.
  • Check for DTC P1AE6 alongside P0ABB.
  • Evaluate the voltage comparison described in bulletin 17-NA-328; the supplied excerpt states a 3 V criterion but does not include the full measurement description.
  • Update HPCM2 to the latest calibrations as specified by the bulletin.
  • After repair, perform the bulletin's repeated ON/OFF verification procedure and confirm P1AE6 and P0ABB do not return.

13. Possible repair or resolution

  • Per bulletin 17-NA-328, update HPCM2 to the latest calibrations.
  • Per bulletin 17-NA-328, install and program a new Battery Energy Control Module.
  • Verify that P1AE6 and P0ABB do not return using the prescribed repeated ON/OFF cycle.

14. Affected vehicles

15. Related TSBs / service bulletins

  • GM Bulletin 17-NA-328, published February 22, 2018; NHTSA Manufacturer Communication PDF 10137377. Verified applicability supplied: 2017 Chevrolet Bolt EV, US.

16. Recall information

  • Not yet established by verified evidence.

17. Official manufacturer information

NHTSA-hosted GM Manufacturer Communication PDF 10137377, bulletin 17-NA-328: https://static.nhtsa.gov/odi/tsbs/2018/MC-10137377-9999.pdf

19. Frequently asked questions

What does P0ABB mean on a 2017 Chevrolet Bolt EV?

The supplied verified evidence does not provide a plain-language definition. It does show that GM bulletin 17-NA-328 addresses P0ABB together with P1AE6.

What repair does GM bulletin 17-NA-328 specify?

The bulletin specifies updating HPCM2 to the latest calibrations, installing and programming a new Battery Energy Control Module, and confirming P1AE6 and P0ABB do not return.

Can I drive or charge with P0ABB?

Not yet established by verified evidence.

20. Sources & verification

ReferenceVerified
Chevrolet P0ABB: 2.4 a total of 2 more times. Page 2 February, 2018… | EV Diagnostics