how to check resistance on a transmision pulse generator

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2001 Hyundai Accent GS Sedan Transmission Speed Sensor Service Procedure

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Filed Under (Hyundai Manuals) by admin on 26-05-2011

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PULSE GENERATOR-B INSPECTION PROCEDURE: 1. Open and secure the hood. 2. Remove the resonator. 3. Locate the pulse generator under the battery tray. Disconnect the pulse generator connector (blue) and remove the pulse generator male connector (black) from the bracket. 4. Using an ohmmeter, check the resistance between terminal No. 3 and No. 4 in the disconnected pulse generator male connector (black color). Resistance value: 215-275W (at 20°C or 68°F) If the resistance is lower or higher than the specification, replace the pulse generator (P/N 45955-22700). If the resistance is within specification go to Step 5. 5. Clean both ends of the disconnected pulse generator connectors with aerosol electrical contact cleaner. 6. Apply contact grease (P/N 00305-F0000-39, NYOGEL 760G), into all four terminal openings of the blue female connector until each terminal opening is completely filled with grease. 7. Reconnect the pulse generator connectors and reattach the connector to the bracket. Reinstall all removed components in the reverse order of removal. TCM SPECIFICATIONS CAUTIONS BEFORE REPROGRAMMING 1. Conduct reprogramming with the ignition key in the “ON” position. 2. Be careful not to disconnect any cables connected to the vehicle or Hi-Scan Pro during reprogramming. 3. Do not start the engine or turn the ignition key off during reprogramming. WARNING: If reprogramming is interrupted, the manual update procedure must be used. 4. When the reprogramming is completed, turn off the ignition key for 20 seconds before starting the engine. TCM REPROGRAMMING PROCEDURE: 1. Insert the 16 MB reprogramming card into the top slot of the Hi-Scan Pro. 2. Connect the reprogramming adapter to the Hi-Scan Pro. 3. Connect the white reprogramming connector (2 pin or 10 pin) to the reprogramming adapter. NOTE: Use the correct connector: ^2000-01 Accent: White 2-pin connector. ^2002 Accent: White 10-pin connector 4. Connect power to the Hi-Scan Pro from the cigarette power adapter. 5. Insert the power cable from the reprogramming adapter into the cigarette power adapter.

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1999 Chevrolet Silverado The service engine soon light is on with trouble code P1416 present

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Filed Under (Chevrolet Manuals) by admin on 07-05-2012

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Tests/Procedures: 1. Use a scanner and command the air pump on with the engine running at idle. Check if the O2 sensors go lean. 2. If the O2 sensor does not go lean on one bank, see if the check valve at the exhaust manifold is stuck closed, not allowing air into the manifold. Potential Causes: Defective Check Valve Diagnostic Codes: P1416 Author: Christopher Pittman Average Reported Mileage: 85812 Confirmed Fix Summary Confirmed Fix 18 – Air Injection Reaction (AIR) Check Valve 1 – Air Injection Reaction (AIR) Check Valve, Air Injection Reaction (AIR) Pump Confirmed Fix Details Tech Reported Fix Details Confirmed Fix Lee Stroup Sr. November 15, 2007 2001 Chevrolet Silverado 1500, 5.3L, Vin T, Eng Cfg V8 * A.I.R. Check Valve – removed check valves, found one rusted closed, one restricted, replaced both valves. Moisture from exhaust seems to have rusted both valves. Air Injection Reaction (AIR) Check Valve Paul Puleo August 20, 2009 1999 Chevrolet Camaro, Z28 5.7L * Replaced Both Air Injection Reaction (AIR) Check Valves – bank 2 AIR check valve restrticted, bank 1 slightly restricted replaced both Air Injection Reaction (AIR) Check Valve SouthGate January 05, 2009 2000 Chevrolet Silverado 1500, 4.8L, Vin V, Eng Cfg V8 * Replaced Air Injection Reaction (AIR) Check Valve – replaced boht check valves. fix the code. Air Injection Reaction (AIR) Check Valve Dwight Heckman July 31, 2008 2000 Chevrolet Blazer, 4.3L * Check Valve – replacing the check valve and cleaning out the lines repaired the problem. Air Injection Reaction (AIR) Check Valve Nick Secchitano June 16, 2009 2000 Chevrolet Silverado 1500, 5.3L, Vin T, Eng Cfg V8 * Replaced Both Air Injection Reaction (AIR) Check Valves – Air injection check valves Air Injection Reaction (AIR) Check Valve Mark Bertelsen 1998 Chevrolet Camaro, Z28 5.7L * Replaced Air Injection Reaction (AIR) Check

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1993 Ford Escort CIRCUIT TEST J – FUEL PUMP CIRCUIT (RELAY AND INERTIA SWITCH)

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Filed Under (Ford Manuals) by admin on 19-01-2012

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resistance between test pin No. 22 and test pins No. 40 and 60. If resistance is less than 10,000 ohms, repair short circuit and repeat QUICK TEST. If resistance is 10,000 ohms or more, go to step 5). 5)Check Fuel Pump Circuit Continuity Turn ignition off. Leave fuel pump relay and PCM disconnected. Measure resistance between FUEL PUMP circuit at fuel pump relay wiring harness connector and test pin No. 22 at breakout box. If resistance is less than 5 ohms, replace PCM and repeat QUICK TEST. If resistance is 5 ohms or more, repair open circuit and repeat QUICK TEST. 10)Code 95/542 A KOEO Code 95/542 indicates one of the following conditions: Engine Starts: * Fuel pump secondary circuit shorted to power. * Fuel pump relay contacts always closed. * Open FPM circuit between PCM and junction to POWER-TO-PUMP circuit. * Left/front HO2S short to power (dual HO2S applications). * Faulty PCM. No Start: * IFS switch circuit open or not reset. * Open circuit in or between PCM and fuel pump. * Faulty ground connection at fuel pump. * Faulty fuel pump. If engine starts, go to step 11). If engine does not start, go to step 15). 11)Check Fuel Pump Operation Turn ignition on. Wait 5 seconds. Listen for fuel pump operation. If fuel pump is off, go to step 13). If fuel pump is on, go to step 12). 12)Check For Fuel Pump Relay Always Closed Turn ignition off. Disconnect fuel pump relay. Turn ignition on. If fuel pump is off with relay disconnected, replace fuel pump relay and repeat QUICK TEST. If fuel pump is on with relay disconnected, repair short to power in POWER-TO-PUMP or FPM circuit. (For models with relay block, also check fuel pump prime plug circuit). Repeat QUICK TEST. 13)Check Continuity Of Fuel Pump Monitor (FPM) Circuit Turn ignition off. Disconnect PCM 60-pin connector. Inspect and repair any damaged terminals. Install EEC-IV Breakout Box (T83L-50-EEC-IV) , leaving PCM disconnected. Disconnect fuel pump relay. Measure resistance between test pin No. 8 (No. 19 on Escort, and Tracer) at breakout box and POWER-TO-PUMP circuit at fuel pump relay wiring harness connector. If resistance is less than 5 ohms, go to step 25) (dual HO2S) or replace PCM and repeat QUICK TEST (single HO2S). If resistance is 5 ohms or more, repair open circuit and repeat QUICK TEST

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1998 Pontiac Grand Prix DTC P0753 1-2 Shift Solenoid Circuit Electrical Repair Manual

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Filed Under (Pontiac Manuals) by admin on 07-06-2012

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Test Description The numbers below refer to the step numbers on the diagnostic table. 6. This step isolates the fault between the engine harness and the transmission harness. 8. This step verifies that circuit 1222 is neither open nor shorted to power. 11. This step verifies that the 1-2 shift solenoid has neither shorted across its windings nor increased its resistance. DTC P0753 1-2 Shift Solenoid Circuit– Electrical Step Action Value(s) Yes No 1 Was the Powertrain On-Board Diagnostic (OBD) System Check performed? — Go to Step 2 Go to Powertrain On Board Diagnostic (OBD) System Check 2 1. Install the Scan Tool . 2. Turn the ignition switch to the RUN position. Important Before clearing the DTCs, use the scan tool in order to record the Freeze Frame and Failure Records for reference. The Clear Info function will erase the data. 3. Record the DTC Freeze Frame and Failure Records, then clear the DTC. — Go to Are DTCs P0758, P1860 or P0740 set? Step 3 Go to Step 6 3 1. Remove the TCC fuse. 2. Inspect the fuse for an open. Was a condition found and corrected? — Go to Step 4 Go to Step 5 4 Repair short to ground in engine harness circuit 1339 or transmission harness circuit 839. Refer to General Electrical Diagnosis Procedures . Was a condition found and corrected? — Go to Step 21 — 5 Repair the open in engine harness circuit 1339 or transmission harness circuit 839. Refer to General Electrical Diagnosis Procedures . Was a condition found and corrected? — Go to Step 21 — 6 1. Turn the ignition switch OFF. 2. Disconnect the Automatic Transmission 7-way connector. 3. Install the J 38835 Transmission Electrical Jumper on the engine harness connector. 4. Connect a test lamp from terminal E to terminal A of the jumper using a J 35616-A Connector Test Adapter Kit. Important Additional DTCs will set. 5. With the engine OFF, turn the ignition ON. Is the test lamp ON? — Go to Step 7 Go to Step 8 7 Inspect engine harness circuit 1222 for a short to ground. Refer to General Electrical Diagnosis Procedures . Was a condition found and corrected? — Go to Step 21 Go to Step 20 8 Using the scan tool command the 1-2 solenoid ON and OFF three times. Does the test lamp cycle ON and OFF as commanded? — Go to Step 11 Go to Step 9 9 Inspect engine harness circuit 1222 for an open. Refer to General Electrical Diagnosis Procedures . Was a condition found and corrected? — Go to Step 21 Go to Step 10 10 Inspect engine harness circuit 1222 for a short to power. Refer to General Electrical Diagnosis Procedures . Was a condition found and corrected? — Go to Step 21 Go to Step 19 11 1. Turn the ignition OFF. 2. Disconnect the J 38835 Transmission Electrical Jumper from the engine harness. 3. Connect the J 38835 Transmission Electrical Jumper to the Automatic Transmission 7-way connector. 4. Connect a J 39200 Digital Multimeter (DMM) from 19 ohms to 31 ohms terminal E to terminal A of the jumper. Is the measured resistance within the specified range? Go to Step 15 Go to Step 12 12 Is the resistance greater than the specified value? 31 ohms Go to Step 13 Go to Step 15 13 Inspect the transmission harness RED wire circuit 839 and the LT GRN wire circuit 1222 for an open. Refer to General Electrical Diagnosis Procedures . Was a condition found? — Go to Step 14 Go to Step 18 14 Replace the Automatic Transmission Wiring Harness. Refer to Solenoids and Wiring Harness Replacement . Is the replacement complete? — Go to Step 21 — 15 Connect the J 39200 Digital Multimeter from terminal A of the jumper to ground. Is the resistance less than the specified value? 100 ohms Go to Step 16 Go to Step 18 16 Inspect the transmission harness LT GRN wire circuit 1222 for a short to ground or short to power. Refer to General Electrical Diagnosis Procedures . Was a condition found? — Go to Step 17 Go to Step 18 17 Replace the Automatic Transmission Wiring Harness. Refer to Solenoids and Wiring Harness Replacement . Is the replacement complete? — Go to Step 21 — 18 Replace the 1-2 Shift Solenoid Valve Assembly. Refer to Solenoids and Wiring Harness Replacement . Is the replacement complete? — Go to Step 21 — 19 Inspect PCM connector C1 (Blue) for bent, damaged or backed out connector pins. Was a condition found and corrected? — Go to Step 21 Go to Step 20 20 Replace the PCM. Refer to PCM Replacement/Programming . Is the replacement complete? — Go to Step 21 — 21 In order to verify your repair, perform the following procedure: 1. Using the scan tool, clear DTCs. 2. Operate the vehicle under the following conditions: { The engine speed is more than 500 RPM. { The vehicle is not in fuel shut off. { System voltage is 10-16 volts. { Drive the vehicle through the 1-2 shift. { When the 1-2 SS Valve Assembly is commanded ON, the voltage decreases to zero. { When the 1-2 SS Valve Assembly is commanded OFF, the voltage increases to B+. { All conditions are met for 5 seconds.

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1984 Toyota Pickup ELECTRICAL Toyota Ignition System – Nippondenso Electronic Ignition Repiar Manual

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Filed Under (Toyota Manuals) by admin on 10-07-2012

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High Tension Wire Resistance 1. Set ohmmeter to x 1000 range and attach leads to each end of high tension wire. On Isuzu I’Mark and P’UP, resistance should not exceed 73,500 ohms per foot. 2. On all other models, resistance should not exceed 25,000 ohms per wire. If it does, replace wires. Fig. 5: Checking Pick-Up Coil Resistance Connect ohmmeter leads to distributor connector terminals. Pick-Up Coil Resistance Set ohmmeter to x 100 range, measure pick-up coil resistance at distributor connector. See Fig. 5 and PICK-UP COIL (SIGNAL GENERATOR) RESISTANCE table. Also check wires for shorts or opens. PICK-UP COIL (SIGNAL GENERATOR) RESISTANCE (OHMS) NOTE: On Toyota Celica, Starlet, 4Runner and Pickup models, a signal generator is used in place of a pick-up coil. Application

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2001 Hyundai Sonata Air Bag Restraint Systems Repair Manual

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Filed Under (Hyundai Manuals) by admin on 21-05-2011

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Scan Tool Display B1111 Battery voltage high B1112 Battery voltage low B1346 Driver-side air bag resistance high B1347 Driver-side air bag resistance low B1348 Driver-side air bag short to ground B1349 Driver-side air bag short to battery B1352 Passenger-side air bag resistance high B1353 Passenger-side air bag resistance low B1354 Passenger-side air bag short to ground B1355 Passenger-side air bag short to battery B1361 Driver-side seat belt pretensioner resistance high B1362 Driver-side seat belt pretensioner resistance low B1363 Driver-side seat belt pretensioner short to ground B1364 Driver-side seat belt pretensioner short to battery B1367 Passenger-side seat belt pretensioner resistance high B1368 Passenger-side seat belt pretensioner resistance low B1369 Passenger-side seat belt pretensioner short to ground B1370 Passenger-side seat belt pretensioner short to battery B1378 Driver side impact air bag resistance high B1379 Driver side impact air bag resistance low B1380 Driver side impact air bag short to ground B1381 Driver side impact air bag short to battery B1382 Passenger side impact air bag resistance high B1383 Passenger side impact air bag resistance low B1384 Passenger side impact air bag short to ground B1385 Passenger side impact air bag short to battery B1400 Satellite left side defective B1401 Satellite left side short to ground B1402 Satellite left side short to battery B1403 Satellite right side defective B1404 Satellite right side short to ground B1405 Satellite right side short to battery B1406 PPD defective B1407 PPD communication error B1408 Satellite left communication error B1409 Satellite right communication error B1620 Internal fault B1650 SRSCM crash recorded (replace SCRSM) B1651 Crash recorded driver-side air bag

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2001 Dodge Durango BLOWER MOTOR RELAYS REPAIR MANUAL

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Filed Under (Dodge Manuals) by admin on 13-02-2012

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BLOWER MOTOR RESISTOR 1. Disconnect negative battery cable. Disconnect blower motor resistor harness connector. Using DVOM, check for continuity between all blower motor resistor terminals. If continuity exists between all terminals, go to next step. If continuity does not exist between all terminals, replace faulty blower motor resistor. 2. Check for open or short in circuits between blower motor resistor and heater control panel. Also check for open or short in wire between blower motor resistor and blower motor. BLOWER MOTOR SWITCH 2000 Dakota, 2000 Durango & 2000-01 Ram Pickup 1. Remove Power Distribution Center (PDC) cover. Using DVOM, check for battery voltage at PDC fuse No. 5 (40-amp) on Dakota and Durango; PDC fuse No. 12 (40-amp) on Ram Pickup. If battery voltage exists, go to next step. If battery voltage does not exist, check for open in Red wire between battery and underhood PDC. If Red wire is okay, replace underhood PDC. 2. Disconnect negative battery cable. Remove heater control panel. See HEATER CONTROL PANEL under REMOVAL & INSTALLATION. Disconnect heater control panel cable, electrical and vacuum connectors as necessary. Using DVOM, check for continuity between heater control panel harness connector terminal No. 7 (Black wire on Dakota and Durango; Black/Orange on Ram Pickup) and ground. See Fig. 5 . If continuity exists, go to step 4 . 3. If continuity does not exist, repair open in Black wire or Black/Orange wire between heater control panel 2001 Dodge Durango 2000-01 HEATER SYSTEMS’ ‘RWD Trucks & Vans harness connector terminal No. 7 and ground connector located at lower right corner of instrument panel (Dakota and Durango) or behind center of instrument panel (Ram Pickup). 4. Place heater mode control knob to any position except OFF. Using DVOM, check for continuity between heater control panel terminal No. 7 and terminals No. 3, 4, 5 and 6 while rotating blower motor switch. See Fig. 5 . 5. If continuity does not exist at any terminal, replace faulty heater control panel. If continuity exists as specified, check for open in circuits between heater control panel and blower motor resistor. Also check for an open in circuit between heater control panel and blower motor. See WIRING DIAGRAMS . Fig. 5: Identifying Heater Control Panel Blower Switch Connector Terminals (2000 Dakota & Durango Are Shown; Ram Pickup Is Similar) Courtesy of CHRYSLER CORP. Ram Van/Wagon 1. Disconnect negative battery cable. Remove heater control panel. See HEATER CONTROL PANEL under REMOVAL & INSTALLATION. Disconnect heater control panel harness connectors. Using DVOM, check for continuity between heater control panel C3 harness connector terminal “C” (Black wire) and ground. See Fig. 6 . If continuity exists, go to next step. If continuity does not exist, repair open in Black wire between heater control panel and ground connector located at lower right of steering column. 2. Place heater mode control selector to any position, except OFF. Using DVOM, check for continuity between appropriate terminals of heater control panel, for C3 connector terminals “B” (Violet wire) and “C” (Black wire). If continuity exists through heater control panel, go to next step. If continuity does not exist, replace faulty heater control panel assembly. 3. Using DVOM, check for continuity between heater control panel C3 connector terminal “B” (Violet wire) and C1 connector terminal “E” (Violet wire). See Fig. 6 . If continuity exists, go to next step. If continuity does not exist, repair open in Violet wire between heater control panel C3 and C1 connectors.

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2004 Honda CIVIC Maintenance Schedule for Severe Conditions

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Filed Under (Honda Manuals) by admin on 25-02-2011

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30,000 miles/ 48,000 km/ — Service at the indicated distance or time, whichever comes first. Use this schedule if the vehicle is driven MAINLY in Canada or in any of the following conditions; if only OCCASIONALLY driven in these conditions, use the Normal Conditions schedule. Severe Driving Conditions ?Driving less than 5 miles (8 km) per trip in freezing temperatures, or driving less than 10 miles (16 km) per trip. ?Driving in extremely hot (over 90 ºF/32 ºC) conditions. ?Extensive idling, or long periods of stop-and-go driving, such as a taxi or a commercial delivery vehicle. ?Driving on muddy, dusty, or de-iced roads. ?Trailer towing, driving with a roof rack, or driving in mountainous conditions. Severe Driving Conditions ?Driving less than 5 miles (8 km) per trip in freezing temperatures, or driving less than 10 miles (16 km) per trip. ?Driving in extremely hot (over 90 ºF/32 ºC) conditions. ?Extensive idling or long periods of stop-and-go driving, such as a taxi or a commercial delivery vehicle. ?Driving on muddy, dusty, or de-iced roads. ?Trailer towing, driving with a roof rack, or driving in mountainous conditions. Do the items in parts A, B, C, D, E, F, G, H, I, and J as required for the mileage/time interval listed. NOTE: According to state and federal regulations, failure to do the maintenance items marked with an asterisk (*) will not void the customer’s emissions warranties. However, Honda recommends that all maintenance services be done at the recommended intervals to ensure long-term reliability. ? Replace engine oil, every 5,000 miles (8,000 km) or 6 months. ? Engine oil capacity-D17A1 engine without oil filter: 3.0 L (3.2 US qt), D17A2 and D17A6 engines without oil filter: 3.3 L (3.5 US qt). ? Replace engine oil filter, every 10,000 miles (16,000 km) or 1 year. ? Engine oil capacity-D17A1 engine with oil filter: 3.2 L (3.4 US qt), D17A2 and D17A6 engines with oil filter: 3.5 L (3.7 US qt). ? Check front and rear brakes, every 10,000 miles (16,000 km) or 1 year. ?Check pads and discs for wear (thickness), damage, and cracks. ?Check calipers for damage, leaks, and tightness of mount bolts. ?Check wheel cylinders for leaks. ?Check brake linings for cracking, glazing, wear, or contamination. ? Lubricate all hinges, locks, and latches, every 10,000 miles (16,000 km) or 1 year. ? Rotate tires, and check tire inflation and condition, every 10,000 miles (16,000 km). ? Follow the pattern shown in the Owner’s Manual. ? Inspect tie rod ends, steering gearbox, and gearbox boots, every 10,000 miles (16,000 km) or 1 year. ?Check rack grease and steering linkage. ?Check boots for damage and leaking grease. ?Check fluid lines for damage and leaks. ? Inspect suspension components, every 10,000 miles (16,000 km) or 1 year. ?Check bolts for tightness. ?Check condition of ball joint boots for deterioration and damage

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1984 Mercedes Benz 190E Fuel Delivery and Air Induction Engine Testing And Adjustment Manual

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Filed Under (Mercedes-benz Manuals) by admin on 13-04-2012

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Note: Test and adjust lambda control with a lambda control tester. The lambda control and the idle speed emissions level must not be tested when the engine is very hot, e.g. immediately after driving sharply or after measuring engine output on the dynamometer. Testing, adjusting 1 Complete measurement sheet. 2 Switch off air conditioning or automatic climate control. Move selector lever into position “P”. 3 Read out DTC memory. Note: Not available on model year 1984-1986. 4 Connect testers: oil remote thermometer (018)124 589 07 21 00 lambda control tester (012) twin socket (031) trigger clamp (011) exhaust probe (005)126 589 11 63 00 CO measuring instrument (006) engine tester with oscilloscope (030) multimeter (003) test cable (033)102 589 04 63 00. 5 Position extraction device (014) at exhaust tail pipe. 6 Check engine coolant level, adjust to correct level. 7 Check engine oil level, pay attention to condition of oil (visual inspection). 8 Take off air cleaner. 9 Check ease of movement and condition of throttle control linkage and throttle valve. Grease all bearing points and ball sockets. 10 Check fulcrum lever, adjust. Check whether the roller (15) in the fulcrum lever (13) is resting free of tension against end stop. Adjust fulcrum lever (13) with the connecting rod (2), if necessary, so that the roller (15) is resting free of tension against end stop. 11 Idle stop. Check whether the throttle valve is resting against idle stop. Disconnect connecting rod (2) for this step. Adjust throttle control. Engines with cruise control only. Check whether the actuator is resting against idle stop of cruise control by pressing the lever of the actuator clockwise against idle stop at cruise control. When attaching the connecting rod (21), ensure that the lever of the actuator is lifted approx. 1 mm off the idle stop at the cruise control. Adjust tie rod, if necessary. Adjust throttle control. 12 Check wide open throttle stop from the accelerator pedal , adjust. 13 Voltages Test (battery and ignition coil ): No-load voltage Connect voltmeter to the battery, paying attention to the polarity, and take reading of voltage. Specification: 12.2 volts . Ignition coil Switch on ignition with engine not running. Test the voltage terminal 15 to ground at contact 5 of diagnostic connector. Specification: battery voltage Test difference in voltage between terminal 15 and terminal 1 at contacts 5 and 4 of diagnostic connector. Specification: 0 volts If the specified values are not reached, test

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1998 Chevrolet Chevy K Pickup DTC P1626 Theft Deterrent Fuel Enable Signal Not Received Repair Manual

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Filed Under (Chevrolet Manuals) by admin on 24-06-2012

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An intermittent may be caused by any of the following conditions: Thoroughly check any circuitry that is suspected of causing the intermittent complaint. Refer to Intermittents and Poor Connections Diagnosis in Wiring Systems. If a repair is necessary, refer to Wiring Repairs or Connector Repairs in Wiring Systems. Test Description The number(s) below refer to the step number(s) on the diagnostic table. 2. This test checks if communication can be established between the scan tool and the VTD. If the scan tool cannot communicate with the VTD, refer to Diagnostic System Check – Theft Deterrent in Theft Deterrent. 3. This test checks for any opens in the serial data circuit between the VCM and the VTD. This also checks for any intermittent malfunctions associated with the serial data circuit. 4. This step is to determine if the condition that set the DTC is still present. The engine must be cranked in order to set this DTC. If the condition is present, the engine will start and then stall, indicating the VCM is disabling fuel. 7. Use a scan tool to clear and check for any DTCs in all the modules connected to the Class 2 Serial Data circuit (VCM, VTD, ATC, and BCM). the module itself. After repairing the cause of DTC P1626, clear all DTCs from the systems capable of storing this DTC and DTC U1192. 1 Important: Before clearing the DTCs, use the scan tool Capture Info to save the Freeze Frame and Failure Records for reference. The control module’s data is deleted once the Clear Info function is used. Did you perform the Powertrain On-Board Diagnostic (OBD) System Check? — Go to Step 2 Go to Powertrain On Board Diagnostic (OBD) System Check 2 1. Install the scan tool. 2. Turn ON the ignition leaving the engine OFF. 3. Attempt to establish communications with the VTD (Passlock) Control Module. Does the scan tool communicate with the VTD (Passlock) Control Module? — Go to Step 3 Go to Diagnostic System Check – Theft Deterrent in Theft Deterrent 3 Check the Class 2 Serial Data circuit for the following intermittent conditions: Did you find a problem? • An open in the Class 2 Serial Data circuit between the VCM and the VTD (Passlock) Control Module. • A short to ground. • A short to voltage. • Loose or damaged terminals at the DLC, VCM or the VTD (Passlock) Control Module. — Go to Step 6 Go to Step 4 4 1. Turn OFF the ignition. 2. Connect or install any connectors or components that were disconnected or removed. 3. Clear all DTCs using a scan tool. 4. Turn OFF the ignition for 15 seconds. 5. Attempt to start the engine. Does DTC P1626 reset? — Go to Diagnostic System Check – Theft Deterrent in Theft Deterrent Go to Step 5 5 This DTC is intermittent. Are any additional DTCs stored? — Go to the applicable DTC table Go to Diagnostic Aids 6 Repair the circuit as necessary. Refer to Wiring Repairs or Connector Repairs in Wiring Systems. Is the action complete?

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