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Chevrolet P0C5D

Drive Motor 1 Position Sensor Circuit 2 High Voltage Parts Information Causal Part Description Part Number Qty X HARNESS, A/TRNS WRG CONT VALVE SOL 24285319 1 Warranty Information

DriveNot yet established by verified evidence.
ChargeNot yet established by verified evidence.
ServiceService is appropriate because the official Chevrolet bulletin provides a specific harness-replacement repair path for this code on applicable vehicles.
Confidence95%

Quick answer

P0C5D is documented by Chevrolet as “Drive Motor 1 Position Sensor Circuit 2 High Voltage” for certain 2016–2018 Chevrolet Volt vehicles in the US. An official Chevrolet service bulletin identifies the automatic-transmission wiring harness, part 24285319, as the causal part for the bulletin repair.

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 P0C5D mean?

P0C5D is documented by Chevrolet as “Drive Motor 1 Position Sensor Circuit 2 High Voltage” for certain 2016–2018 Chevrolet Volt vehicles in the US. An official Chevrolet service bulletin identifies the automatic-transmission wiring harness, part 24285319, as the causal part for the bulletin repair.

2. Technical explanation

The verified NHTSA-hosted Chevrolet manufacturer communication 18NA186 lists P0C5D as Drive Motor 1 Position Sensor Circuit 2 High Voltage. Its parts information specifies HARNESS, A/TRNS WRG CONT VALVE SOL, part number 24285319, quantity 1. The bulletin directs technicians to perform transmission wiring harness replacement in Service Information (SI), followed by Diagnostic Repair Verification.

3. What system is affected?

Drive Motor 1 position sensor circuit 2; the verified bulletin repair concerns the automatic-transmission wiring harness.

4. How serious is this code?

Not yet established by verified evidence.

5. Symptoms you may notice

  • Not yet established by verified evidence.

6. Possible causes

  • For the Chevrolet bulletin repair, the documented causal part is the automatic-transmission wiring harness (HARNESS, A/TRNS WRG CONT VALVE SOL), part number 24285319.

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 qualified Chevrolet/EV service facility.
  • Do not attempt high-voltage or transmission-wiring repairs yourself.
  • Provide the technician with DTC P0C5D and Chevrolet bulletin 18NA186.

10. Step-by-step troubleshooting

  1. A service technician should follow the applicable Chevrolet Service Information diagnostic procedure.
  2. The official bulletin directs transmission wiring harness replacement in SI and then a Diagnostic Repair Verification.

11. When to contact service

Service is appropriate because the official Chevrolet bulletin provides a specific harness-replacement repair path for this code on applicable vehicles.

12. What the service center may check

  • Confirm vehicle applicability: 2016–2018 Chevrolet Volt, US market.
  • Confirm stored DTC P0C5D.
  • Follow Chevrolet SI for transmission wiring harness replacement.
  • Perform Diagnostic Repair Verification after the repair, as directed by bulletin 18NA186.

13. Possible repair or resolution

  • The official bulletin lists replacement of the automatic-transmission wiring harness as the repair procedure in SI.
  • Verified causal part: HARNESS, A/TRNS WRG CONT VALVE SOL; part number 24285319; quantity 1.
  • Perform Diagnostic Repair Verification after the repair.

14. Affected vehicles

15. Related TSBs / service bulletins

  • Chevrolet bulletin 18NA186, published through NHTSA as Manufacturer Communication PDF 10166648 on 2019-09-17. It includes P0C5D and specifies automatic-transmission wiring harness replacement in SI, using part 24285319, followed by Diagnostic Repair Verification.

16. Recall information

  • Not yet established by verified evidence.

17. Official manufacturer information

Official source: NHTSA-hosted Chevrolet manufacturer communication 18NA186 (MC-10166648-9999): https://static.nhtsa.gov/odi/tsbs/2019/MC-10166648-9999.pdf

19. Frequently asked questions

What does P0C5D mean?

Verified Chevrolet bulletin evidence identifies P0C5D as Drive Motor 1 Position Sensor Circuit 2 High Voltage.

Which vehicles are covered by the verified evidence?

The verified applicability is 2016–2018 Chevrolet Volt vehicles in the United States.

What part does the official bulletin identify?

The bulletin identifies the automatic-transmission wiring harness, described as HARNESS, A/TRNS WRG CONT VALVE SOL, part number 24285319, quantity 1.

Is it safe to drive or charge with P0C5D?

Not yet established by verified evidence.

20. Sources & verification

ReferenceVerified
Chevrolet P0C5D: Drive Motor 1 Position Sensor Circuit 2 High Voltage… | EV Diagnostics