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1998 Cadillac Seville SLS Service Manual – PDF DOWNLOAD
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1998 Cadillac Seville SLS Service Manual – PDF DOWNLOAD
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Description
1998 Cadillac Seville SLS Service Manual – PDF DOWNLOAD
DESCRIPTION:
1998 Cadillac Seville SLS Service Manual – PDF DOWNLOAD
1998 AIR CONDITIONING & HEAT General Motors Corp. – AIC Compressor Clutch Controls
DESCRIPTION & OPERATION
A/C COMPRESSOR CLUTCH CONTROLS
To provide improved idle quality, improved Wide Open Throttle (WOT) performance and A/ C system protectiom the compressor clutch is controlled by PCM. For proper control of cooling fans, compressor clutch and Idle Air Control (IAC) valve, a refrigerant pressure sensor is used. PCM uses signal provided by sensor to monitor high and low side refrigerant pressures. If PCM detects a fault in refrigerant pressure circuit, compressor clutch will be disabled. The A/C clutch relay is controlled by PCM. This allows PCM to raise idle speed before engaging compressor clutch, or disable compressor clutch during WOT, high engine RPM, high power steering loads and hot engine restarts. PCM also disables compressor clutch if coolant temperature becomes excessive.
Description :
When A/C Programmer (ACM) requests A/C operation from PCIVI, PCM will ground A/C clutch relay coil. When A/C clutch relay coil is grounded, compressor clutch is energized. PCM will disable or inhibit compressor operation during high power steering load, if engine is not running, if engine is rimming at wide open throttle, if ambient temperature is less than 40°F (4°C) or when certain PCM DTCs are set. The compressor clutch is also disengaged during engine cranking in colder weather to prevent A/C sludging.
Diagnosis :
1. If On-Board Diagnostic (OBD) System Check has not been performed, see OBD SYSTEM CHECK in TESTS W/CODES article in ENGINE PERFORMANCE. If OBD SYSTEM CHECK has been performed, go to next step.
2. Connect scan tool. Start engine and let idle. Turn A/C on and select MAX cold and AUTO. Observe scan tool for A/C clutch relay status. If scan tool indicates A/C clutch relay is requested ON, go to next step. If scan tool indicates A/C relay is requested OFF,
go to step 13).
3. Observe compressor clutch If compressor clutch is engaged, go to next step. If compressor clutch is not engaged, go to step 5).
TABLE OF CONTENTS:
1998 Cadillac Seville SLS Service Manual – PDF DOWNLOAD
1998 AC COMPRESSOR............................ 1 1998 AIRBAGS.................................. 6 1998 ALTENATOR................................ 151 1998 ELECTRICAL COMPONENT LOCATOR............. 170 1998 HVAC..................................... 198 1998 STARTER.................................. 255 1998 WIRING................................... 278 1998-99 ANTILOCK BRAKES....................... 345 1998-99 AXLE SHAFTS........................... 439 1998-99 BRAKES................................ 452 1998-99 COOLING............................... 468 1998-99 ELECTRONIC LEVEL CONTROL.............. 499 1998-99 ELECTRONIC SUSPENSION................. 510 1998-99 FRONT SUSPENSION...................... 552 1998-99 POWER STEERING........................ 564 1998-99 REAR SUSPENSION....................... 589 1998-99 STEERING.............................. 631 1998-2000 FUSES............................... 665 2000 AIRBAGS.................................. 673 2000 AUTO TRANSMISSION OVERHAUL............... 749 2000 COMPUTER RELEARN......................... 817 2000-01 ANTILOCK BRAKES....................... 875 2000-01 AXLE SHAFTS........................... 982 2000-01 COOLING FANS.......................... 992 2000-01 DISC BRAKES...........................1140 2000-01 DRIVE BELT ROUTING....................1160 2000-01 FRONT SUSPENSION......................1190 2000-01 HVAC 1................................1203 2000-01 POWER STEERING........................1454 2000-01 REAR SUSPENSION.......................1483 2000-01 STEERING COLUMN.......................1496 2001 WIRING...................................1530 2004 WIRING...................................1607 AIRBAGS.......................................1744 ALTENATOR.....................................1964 ANTILOCK BRAKES...............................1997 AUTO TRANSMISSION OVERHAUL....................2203 AUTO TRANSMISSION SERVICE.....................2639 AUTOMATIC LEVEL CONTROL.......................2705 AXLE SHAFTS...................................2778 BASIC TROUBLESHOOTING.........................2816 CRUISE CONTROL................................2893 DEFOGGERS.....................................2950 DISC BRAKES...................................3031 DOORS.........................................3152 DRIVE BELT ROUTING............................3546 ELECTRICAL COMPONENT LOCATIONS................3549 ELECTRONIC SUSPENSION CONTROL.................3644 ENGINE COOLING................................3726 1.........................................3726 2.........................................3727 3.........................................3728 4.........................................3729 5.........................................3730 6.........................................3732 7.........................................3734 8.........................................3735 9.........................................3736 10........................................3740 11........................................3742 12........................................3744 13........................................3747 14........................................3750 15........................................3754 16........................................3766 17........................................3768 18........................................3771 19........................................3783 20........................................3791 21........................................3794 22........................................3796 23........................................3798 ENGINE ELECTRICAL.............................3801 ENGINE EXHAUST................................3942 ENGINE PART A.................................4020 ENGINE REPAIR PART1...........................4143 ENGINE REPAIR PART2...........................4547 ENGINE REPAIR PART3...........................4815 ENGINE REPAIR PART4...........................5060 ENGINE REPAIR PART5...........................5471 ENTERTAINMENT.................................5508 FRAME UNDERBODY...............................5702 FRONT SUSPENSION..............................5724 FUSES.........................................5779 HEATING, VENTILATION, AND AIR CONDITIONING....5792 1.........................................5792 2.........................................5793 3.........................................5794 4.........................................5796 5.........................................5799 6.........................................5801 7.........................................5808 8.........................................5810 9.........................................5813 10........................................5816 11........................................5820 12........................................5825 13........................................5829 14........................................5831 15........................................5833 16........................................5835 17........................................5837 18........................................5843 19........................................5848 20........................................5854 21........................................5856 22........................................5859 23........................................5861 24........................................5863 25........................................5865 26........................................5869 27........................................5873 28........................................5875 29........................................5877 30........................................5883 31........................................5887 32........................................5889 33........................................5893 34........................................5897 35........................................5899 36........................................5902 37........................................5905 38........................................5907 39........................................5910 40........................................5912 41........................................5914 HORNS.........................................5916 HYDRAULIC BRAKES..............................5938 INSTRUMENT PANEL..............................6096 INTERIOR TRIM.................................6426 KEYLESS ENTRY.................................6482 NAVIGATION SYSTEM.............................6506 PARKING BRAKE.................................6562 POWER STEERING................................6662 REAR SUSPENSION...............................6790 ROOF..........................................6861 SEATS.........................................6955 STEERING COLUMN...............................7325 WIPER WASHER..................................7618
1998 CADILLAC SEVILLE SLS SERVICE MANUAL – PDF DOWNLOAD:
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