AutoCodes – Generic – P0D64

P0D64 Code - Hybrid/EV Battery Pack Cooling Fan Enable Circuit

Quick Answer

The hybrid/EV battery pack cooling fan draws air through the hybrid/EV battery pack to control the temperature of the hybrid/EV battery pack. Common causes include Faulty Hybrid/EV Battery Pack Cooling Fan, Hybrid/EV Battery Pack Cooling Fan harness is open or shorted, Hybrid/EV Battery Pack Cooling Fan circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P0D64 indicates Hybrid/EV Battery Pack Cooling Fan Enable Circuit.
Common causes: Common causes include Faulty Hybrid/EV Battery Pack Cooling Fan, Hybrid/EV Battery Pack Cooling Fan harness is open or shorted, Hybrid/EV Battery Pack Cooling Fan circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 1,785

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Nov 20, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0D64 Description

The hybrid/EV battery pack cooling fan draws air through the hybrid/EV battery pack to control the temperature of the hybrid/EV battery pack. To operate, the cooling fan receives an enable signal from the starter/generator control module. The enable control is controlled by a discrete high side driver in the starter/generator control module. When the enable control circuit is high, the fan will be enabled. The fan speed is controlled by a fan control circuit from the starter/generator control module, by changing the duty cycle. The maximum fan speed is 3900 RPM. Hybrid/EV battery pack cooling fan enable circuit open and short to voltage diagnostics run continuously until hybrid/EV battery pack cooling fan is enabled to run while short to ground runs after it is enabled to run. These diagnostics detect and report a failure of the fan to enable circuits.

OBDII Code P0D64 - Hybrid/EV Battery Pack Cooling Fan Enable Circuit - AutoCodes.com — P0D64 Code - Hybrid/EV Battery Pack Cooling Fan Enable Circuit

What does this mean?

What are the Possible Causes of the DTC P0D64?

Faulty Hybrid/EV Battery Pack Cooling Fan
Hybrid/EV Battery Pack Cooling Fan harness is open or shorted
Hybrid/EV Battery Pack Cooling Fan circuit poor electrical connection
Faulty Starter/Generator Control Module

How to Fix the DTC P0D64?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0D64 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0D64 code?

Need more information on how to fix the P0D64 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0D64 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P0D64 Buick — Hybrid/EV Battery Pack Cooling Fan Enable Circuit
P0D64 Cadillac — Hybrid/EV Battery Pack Cooling Fan Enable Circuit
P0D64 Chevrolet — Hybrid/EV Battery Pack Cooling Fan Enable Circuit
P0D64 GMC — Hybrid/EV Battery Pack Cooling Fan Enable Circuit

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0D64 Code

1. What does the OBDII code P0D64 mean?

P0D64 indicates an issue with the Hybrid/EV battery pack cooling fan enable circuit, which may prevent the fan from operating properly to cool the battery.

2. What are the common symptoms of code P0D64?

Symptoms include an illuminated check engine light, overheating of the battery pack, reduced vehicle performance, or the vehicle entering a limp mode.

3. What causes the P0D64 code to trigger?

Common causes include a faulty cooling fan, damaged wiring or connectors in the fan circuit, a malfunctioning control module, or a blown fuse.

4. Can I drive my car with the P0D64 code?

It is not recommended to drive for extended periods with this code, as it can lead to battery overheating and potential damage to the hybrid or EV system.

5. How do I diagnose the P0D64 code?

Diagnosis involves checking the cooling fan for operation, inspecting related wiring and connectors for damage, testing the fan relay, and using a scan tool to monitor the circuit.

6. How can the P0D64 code be fixed?

Repairs may include replacing a faulty fan, repairing damaged wiring or connectors, replacing a bad relay, or reprogramming/repairing the control module if needed.

7. How much does it cost to fix the P0D64 code?

Repair costs vary depending on the issue but can range from $100 for minor wiring repairs to $500 or more if the fan or control module needs replacement.

8. Can a dirty or clogged cooling fan cause the P0D64 code?

Yes, dirt or debris in the fan can cause it to malfunction, leading to the code. Cleaning or replacing the fan may resolve the issue.

9. Will resetting the code fix the problem?

Resetting the code without addressing the underlying issue will not fix the problem, and the code is likely to return.

10. Is the P0D64 code specific to certain vehicles?

This code is most commonly found in hybrid and electric vehicles, as it pertains to the battery cooling system, but the exact diagnosis and repair process may vary by make and model.