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Chevrolet P2002

The technician should follow SI diagnostics. If no cause for the concern is found or during diagnosis a leak check is required, power smoke diagnostic leakdetect

DriveUnknown. The supplied verified evidence does not establish whether the vehicle is safe to drive with P2002.
ChargeUnknown. The supplied verified evidence does not establish whether charging is affected or safe.
ServiceProfessional service is appropriate because the verified bulletin directs technicians to GM SI diagnostics and, when required, a diagnostic leak check.
Confidence95%

Quick answer

For Chevrolet vehicles covered by bulletin PIP5684 revisions, P2002 may appear with other DTCs and intermittent reduced engine power. The bulletin states that a leak in the charge-air-cooler/induction systems may be involved. Technicians should follow GM Service Information (SI) diagnostics; if needed, the bulletin directs use of the Power Smoke diagnostic leak detector.

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 P2002 mean?

For Chevrolet vehicles covered by bulletin PIP5684 revisions, P2002 may appear with other DTCs and intermittent reduced engine power. The bulletin states that a leak in the charge-air-cooler/induction systems may be involved. Technicians should follow GM Service Information (SI) diagnostics; if needed, the bulletin directs use of the Power Smoke diagnostic leak detector.

2. Technical explanation

The verified manufacturer communication does not provide a standalone technical definition for P2002. It identifies P2002 as one of many possible current or history codes that may be present in a concern involving intermittent reduced engine power. The stated possible cause is a leak in the charge air cooler / induction systems. This is not established as the cause of every P2002 occurrence.

3. What system is affected?

Charge air cooler / induction systems are the systems identified in the verified bulletin. The diagnostic record does not establish a system name.

4. How serious is this code?

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

5. Symptoms you may notice

  • Intermittent reduced engine power may be reported, according to bulletin PIP5684 revisions.
  • P2002 may be stored as a current or history DTC, potentially with other listed DTCs.

6. Possible causes

  • A leak in the charge air cooler / induction systems may cause the concern described in bulletin PIP5684 revisions.
  • Other causes for an individual P2002 event are not yet established by verified evidence.

7. Can I still drive the vehicle?

Unknown. The supplied verified evidence does not establish whether the vehicle is safe to drive with P2002.

8. Can I charge the vehicle?

Unknown. The supplied verified evidence does not establish whether charging is affected or safe.

9. What you can safely do

  • Arrange professional diagnosis using the applicable GM Service Information procedures.
  • Do not attempt high-voltage or other hazardous repairs based on this bulletin.

10. Step-by-step troubleshooting

  1. A technician should follow GM Service Information (SI) diagnostics.
  2. If no cause is found, or if diagnosis requires a leak check, bulletin PIP5684 directs use of the Power Smoke diagnostic leak detector.

11. When to contact service

Professional service is appropriate because the verified bulletin directs technicians to GM SI diagnostics and, when required, a diagnostic leak check.

12. What the service center may check

  • Retrieve and assess current and history DTCs.
  • Follow the applicable GM SI diagnostic procedure.
  • Perform a leak check with the Power Smoke diagnostic leak detector when SI diagnosis requires it or when no cause is found.

13. Possible repair or resolution

  • The verified evidence does not specify a universal repair.
  • Resolution depends on the result of GM SI diagnostics and any required leak check.

14. Affected vehicles

15. Related TSBs / service bulletins

  • GM PIP5684, published October 22, 2019; NHTSA Manufacturer Communication MC-10167455.
  • GM PIP5684A, published May 5, 2020; NHTSA Manufacturer Communication MC-10176300.
  • GM PIP5684B, published July 13, 2020; NHTSA Manufacturer Communication MC-10178370.
  • GM PIP5684C, published October 22, 2020; NHTSA Manufacturer Communication MC-10182564.

16. Recall information

  • Not yet established by verified evidence.

17. Official manufacturer information

Official NHTSA-hosted manufacturer communication: PIP5684C, MC-10182564, https://static.nhtsa.gov/odi/tsbs/2020/MC-10182564-9999.pdf

19. Frequently asked questions

What does the verified bulletin say about P2002?

It lists P2002 among possible current or history DTCs that may accompany intermittent reduced engine power, and states that a charge-air-cooler/induction-system leak may be involved.

Does P2002 prove there is an induction-system leak?

No. The bulletin says such a leak may be the cause of the described concern; it does not establish that it is the cause in every vehicle with P2002.

What diagnostic action does GM's bulletin specify?

Follow GM SI diagnostics. If no cause is found or a leak check is required during diagnosis, use the Power Smoke diagnostic leak detector.

Is this confirmed as an EV high-voltage battery or charging fault?

No. The supplied evidence identifies charge air cooler / induction systems and does not establish a high-voltage battery or charging-system fault.

20. Sources & verification

ReferenceVerified
Chevrolet P2002: The technician should follow SI diagnostics. If no… | EV Diagnostics