Automotive Manual PDF

Vehicles are equipped with an integral housing steering rack that is sealed and must be replaced if defective.
FLUID LEVEL CHECK
Check fluid level when fluid is cold with engine off. To check and fill, remove fluid level gauge from reservoir and check fluid level. Fluid level should be between MIN and MAX marks on gauge dipstick. Add fluid through dipstick opening as needed, and recheck fluid level. DO NOT overfill.
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The condition of camshaft drive belts should always be checked on vehicles which have more than 50,000 miles. Although some manufacturers do not recommend belt replacement at a specified mileage, others require it at 60,000-100,000 miles. A camshaft drive belt failure may cause extensive damage to internal engine components on most engines, although some designs do not allow piston-to-valve contact. These designs are often called “Free Wheeling”.
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Before testing separate components or systems, perform procedures in the F - BASIC TESTING - TURBO article. Since many computer-controlled and monitored components set a trouble code if they malfunction, also see the G - TESTS W/CODES - TURBO article.
NOTE: Testing individual components does not isolate shorts or opens. Unless stated otherwise in test procedure, perform all voltage tests using a Digital Volt-Ohmmeter (DVOM) with a minimum 10-megohm input impedance. Use ohmmeter to isolate wiring harness shorts or opens.
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850 turbo uses a Motronic 4.3 control system, which has a single Electronic Control Module (ECM) to control fuel injection and ignition systems. In addition, Motronic 4.3 control system incorporates an on-board diagnostic function. Signals from various sensors are monitored continuously. If certain signals are lost or become faulty, ECM will adopt fixed substitute values (limp-home mode) to enable vehicle to be driven for certain failures. Substitute values can be adopted for Engine Coolant Temperature (ECT) sensor signal, Throttle Position (TP) sensor signal, Mass Airflow (MAF) sensor signal, and oxygen sensor (HO2S) signal. See Fig. 1.
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If no faults were found while performing procedures in the F - BASIC TESTING article, proceed with self-diagnostics. If no fault codes are present, proceed to the H - TESTS W/O CODES article for diagnosis by symptom (i.e., ROUGH IDLE, NO START, etc.). NOTE: All voltage tests should be performed using a Digital Volt-Ohmmeter (DVOM) with a minimum 10-megohm input impedance, unless stated otherwise in testing procedures.
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All 850 models are equipped with an analog gauge instrument cluster. Speedometer is centrally located with tachometer on right and coolant temperature/fuel gauges on left. Warning/telltale lights arelocated at bottom left and right sides of instrument cluster. Digital clock and ambient temperature display are located under odometer. This section of instrument cluster may contain an optional trip computer that provides information on average fuel consumption, current fuel consumption, average speed, trip meter, ambient temperature and range of fuel in tank. Instrument cluster is equipped with self-diagnostic capabilities.
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Engine may be identified by using Vehicle Identification Number (VIN) stamped on a metal pad, located near lower left corner of windshield. The sixth and seventh character identifies engine model. Engine identification number, located on left side of cylinder block below cylinder head, may be required when ordering replacement parts.
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Power seat option is available for driver’s and passenger’s seat. Seats have a memory function and an integral diagnosis system. Memory function has 3 memory buttons for different seat settings. There is one control for seat cushion and one for backrest. Seat control module, which is located under seat, controls 4 motors. Three motors are under the seat and one is in the backrest. Memory-type control module takes seat position information from 4 position sensors.
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Deactivate air bag system before performing any service operation. For 1995 850, see AIR BAG RESTRAINT SYSTEM, for 1996 850, see AIR BAG RESTRAINT SYSTEM article. Do not apply electrical power to any component on steering column without first deactivating air bag system. Air bag may deploy.
NOTE: Anti-theft alarm system comes in 3 different versions: basic alarm, Guard Alarm I, and Guard Alarm II. See Fig. 1.
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850 models with central locking and factory installed alarm system can be equipped with a remote-controlled keyless entry system. Transmitter has a range of about 5 meters. Remote control cannot be used to lock vehicle if ignition switch is in position I or II. Upon receiving signals from transmitter, receiver unit transmits locking or unlocking signals to central locking relay. Central locking relay switches interior lighting on and off, and transmits signals to alarm relay to activate and deactivate alarm. Receiver includes a memory which can store coded radio signals from a maximum of 3 different transmitters. Information is retained in memory even if battery is disconnected.
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