Rondo L4-2.4L (2007)
Compressor Clutch: Technical Service Bulletins
A/C - Compressor Disc/Hub/Pulley/Field Coil Inspection
Model: Passenger Cars(PA)
Group: Heating, Ventilation and Air Conditioning(71)
Number: KT2007081504
Date: Friday, August 17, 2007
Area: N. America
Subject:
A/C compressor Disc & Hub/Pulley/Field Coil Assembly Inspection and Replacement Procedure (Climate - 012)
Description
This service bulletin provides information regarding A/C Compressor Disc & Hub / Pulley / Field Coil Assembly inspection an replacement on all
current Kia models. During routine diagnostic procedures to isolate air conditioning compressor faults such as open field coil circuits and noises related
to the disc and hub assembly, previous repairs required air conditioning compressor replacement. Kia has made the Disc & Hub / Pulley / Field Coil
available as serviceable items. No other repair or service should be made to the air conditioning compressor assembly outside of these
replacement/serviceable items.
This TSB describes both Halla and Doowon compressors, including fixed and variable displacement. Inspection/replacement procedures of the
serviceable items are similar unless otherwise noted.
Inspection Procedure: Field Coil Diagnosis (A/C Inoperative)
1.
Start Engine. Turn the Air Conditioning (HVAC) to the "On" position.
2.
Verify engagement of the compressor clutch, if the clutch is operational monitor the cycling of the compressor clutch and road test for any
intermittent conditions. If the compressor clutch is not engaged, verify battery voltage to the field coil circuit.
3.
If battery voltage is present to the compressor clutch circuit, check the field coil resistance.
4.
If battery voltage is not present, check the A/C fuse.
5.
If you suspect the field coil circuit has an open circuit, check the resistance between the field coil and compressor housing. Resistance
specification at 70°F: HALLA Manufacturer Specification: 3 - 4 ohms / DOOWON Manufacturer Specification: 2.8 - 3.2 ohms. If the resistance is
less / more than the specification, replace the field coil assembly following the service procedure in this bulletin.
