03/06/2022 17:11:27
A/C Refrigerant Leak Detection
Correction Code 18200200
Dye Injection
Note
The steps in this section are for
manually injecting dye in the compressor discharge port. The Robinair AC1234-7
machine can inject dye while the machine is connected to the vehicle. If using the
AC1234-7 machine, recover refrigerant, then use the "UV Dye" option to inject dye
before recharging refrigerant (refer to procedure).
- Recover refrigerant from the vehicle (refer to procedure).
- While the refrigerant is being recovered, remove the underhood storage unit (refer to procedure).
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Remove the fastener that secures the HVAC compressor discharge line.
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Pour 1 container of Tracerline Tracer-Stick TP-3811 Hybrid / POE ultraviolet
leak detection dye into the A/C compressor discharge port and reinstall the
fastener to secure the discharge line to the A/C compressor (torque 10 Nm).
- Recharge the vehicle with refrigerant (refer to procedure).
System Testing
- On the touchscreen, set the temperature to LO on both the driver and passenger controls.
- Run the A/C system for 10 minutes to allow the dye to circulate.
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Using an ultraviolet (UV) or blue
light, examine all A/C lines for leaks.
NoteLeaks glow a bright yellow-green.
- Once the leak is located, recover refrigerant from the vehicle (refer to procedure).
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Replace the defective component(s).
NoteAlso replace the desiccant bag, as the A/C system has experienced a leak. See Receiver Dryer and Desiccant (Remove and Replace).
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Recharge the vehicle with refrigerant (refer to procedure).
CAUTIONIf a component was replaced, additional oil must be added to the system. See the end of the "Recover Refrigerant and Verify Charge" section for more information.
- Use a general-purpose cleaner to clean off all dye residue. This prevents leftover residue from being mistake for a leak in future repairs. Confirm that all residue is removed by inspecting all A/C lines with a UV or blue light.
- Run the A/C system with the temperature set to LO. Inspect all A/C lines with a UV or blue light to verify repairs.
- Fill out the Tracerline dye label and place it next to the A/C refrigerant label on the right underhood apron to inform future technicians that dye has been added to the A/C system.
- Reinstall all components that were removed for access.