NHTSA ID Number: 10193463
Manufacturer Communication Number: PIC6436
Summary
This Preliminary information communicates to technician’s if they have a low mileage vehicle with an Air Conditioning inoperative condition with a P0534 to inspect the Air Compressor for leak and the possible area of the leak. Once verified of the leak in the compressor area to replace the compressor for the repair.
1 Affected Product
Vehicle
Condition
No A/C, blows warm air when set to cold, Setting P0534
Condition typically happens under 500 miles. Before adding refrigerant / dye, put car on hoist and remove aero panel from front cradle.
Inspect the ACCM (Air Conditioning Compressor Module or sometimes called Air Conditioning and Drive Motor Battery Cooling Compressor), view the HV connector area for possible POE oil dripping off connector and the case bolt just above compressor.
Cause
Defective ACCM K118 Electric ACCM internal seal, Oil visually leaking above HV connector at case half, see image below.
SEOCONTENT-START
Bulletin No.: PIC6436
Published date: 04/21/2021
Preliminary Information
PIC6436 No A/C – A/C Blows Warm Air – DTC P0534
Models
Brand: Chevrolet
Model:
2021
Model Years:
VIN:
from to
All All
All
All
Involved Region or Country
North America
Condition
Cause
No A/C, blows warm air when set to cold, Setting P0534
Condition typically happens under 500 miles. Before adding refrigerant / dye, put car on hoist and
remove aero panel from front cradle.
Cooling Compressor), view the HV connector area for possible POE oil dripping off connector and the
case bolt just above compressor.
Refer to pictures below for existing oil leak examples.
Defective ACCM K118 Electric ACCM internal seal, Oil visually leaking above HV connector at case
half, see image below.
Correction:
If this Concern is found continue to follow this document, if no leak is found continue with GSI
diagnostics.
Replace K118 Electric ACCM GSI (Global Service Information, formally eSI) Document ID: 4530406
Warranty Information
For vehicles repaired under the EV coverage, use the following labor operation. Reference the
Applicable Warranties section of Investigate Vehicle History (IVH) for coverage information.
Labor Operation Description
Labor Time
4417140 ACCM replacement
Use Published Labor Time
Version History
Version 1
Modified 04/21/2021 – Created on.
SEOCONTENT-END
1 Associated Document
Manufacturer Communications
Bulletin No.: PIC6436
Published date: 04/21/2021
- One application of oil and fuel system UV leak detection dye
- For use in engine oil, transmissions, power steering systems and gas/diesel fuel systems
- Compatible with all weights of petroleum-based lubricant
- Helps locate leaks
- Professional grade
- package height : 15.24 cm
- package length : 4.064 cm
- package width : 6.858 cm
- Product type : AUTO OIL
- Country of manufacture: United States
- See Leaks in Dirty Engine Oil: Oil-based UV leak dye is made for dark used oil conditions where leaks are hard to see, helping trace engine oil leak paths with a compatible UV inspection light
- For Oil Fuel ATF and Hydraulic Leaks: Designed for engine oil, fuel, ATF, power steering, and hydraulic fluid leak checks, keeping the product focused on oil-based fluid systems
- Find Small Seep and Slow Leaks: Helps trace small seepage, slow leaks, and intermittent leak paths around oil pans, gaskets, seals, hoses, fittings, lines, pumps, and tight service areas
- Precision Nozzle Reduces Overuse: The pointed nozzle helps place dye into the fill point with better control, reducing dripping, overuse, and dye mess around tools, hands, and engine surfaces
- Low-Odor 5.07 fl oz Bottle: Low-odor formula is easier to work with during leak checks. Add only the needed amount, circulate the fluid, inspect with UV light, then clean visible dye after repair
- Gasoline engine oil dye, 1 oz. bottle, 6 pack
- Produced with the highest grade materials
- Satisfaction ensured
- Superior Fluorescence Performance: Formulated with a safe formula, the oil dye emits a bright yellow-green fluorescence under light after application. It contrasts sharply with engine grease and dark parts, clearly indicating the location of leaks.
- Long-lasting Stability: The oil leak detection kit has a low odor and remains stable under extreme storage conditions, without crystallizing or separating. It can remain in the system indefinitely for long-term monitoring, allowing for easy re-inspection of repairs.
- Precise use and easy cleaning: The wearable syringe allows for precise dosage control, preventing dye spillage and accurately locating multiple small leak points. In the event of spillage, the dye can be easily removed with a special cleaning agent.
- Instructions for Use: First, add the recommended amount of engine oil dye directly to the tank or dipstick. Second, run the system for 5 to 15 minutes (or a short drive) to allow the dye to circulate and mix fully with the liquid. For systems that are not running, wait 2-3 hours for the dye to disperse. Then, dim the inspection area and illuminate all suspected leaks and seams with the dedicated light. Finally, look for bright yellow or green fluorescence in the inspection area. The glowing liquid or puddle indicates the leak. Locate leaks and repair as needed.
- Wide Applications: The product has broad compatibility; the dye circulates with the oil, allowing for leak detection without clogging or damaging oil lines. Safe for use with hydraulic oil, engine oil, compressor oil, gear oil, and transmission fluid.
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