engine compartment wiring diagram toyota tundra

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Toyota ISO Adapter Wiring Diagram

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Filed Under (Toyota Manuals) by admin on 19-05-2011

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4R Runner 1991-2000 Amazon > 2000 Avensis > 1997 Avensis verso > 2003 Camry > 1991 Carina E > 1988 Celica > 1990 Corolla > 1988 Corolla verso > 2002 Hi-Ace > 1990 Hi-Lux > 1989 Land Cruiser 1984-2002 Lite Ace > 1993 MR2 > 1990 Paseo > 1997 Picnic > 1990 Previa > 1994 RAV-4 > 1994 Starlet 1993-1997 Supra 1986-1996 Tacoma 1995-2001 Yaris > 1999 Reference : AC000005AA If you are interested, contact our sales department : Car kit Parrot Battery Pin Number Couleur Description 1 White Mute In 1 2 Yellow Mute In 2 3 Blue Mute In 3 4 Orange + 12V Memory 5 Green 6 Brown 7 Red + 12 V Permanent 8 Black Masse Car kit Parrot, car’s speakers Pin Number Couleur Description 1 Grey Rear right speaker + 2 White Rear right speaker – 3 Blue Front right speaker + 4 Green Front right speaker – 5 Red Front left speaker + 6 Orange Front left speaker – 7 Bronw Rear left speaker + 8 Black Rear left speaker – Toyota Audio Toyota Supply N° Connector Color Description 2 Toyota 2 Green Rear left speaker + 2 Toyota 1 White Front left speaker + 1 Toyota 1 Grey Front Right speaker + 1 Toyota 2 Violet Rear Right speaker + 3 Toyota 2 Green Black Rear Left speaker – 9 Toyota 1 White Black Front Left speaker – 10 Toyota 1 Grey Black Front Right speaker- 6 Toyota 2 Black Violet Rear Right speaker – N° Connector Color Description 3 Toyota 1 Red +12 V Permanent 4 Toyota 1 Orange +12 Ignition 8 Toyota 1 Black Ground Toyota 1 Toyota 2 Toyota Audio Toyota Supply N° Connector Color Description 2 Toyota 4 Green Rear left speaker + 2 Toyota 3 White Front left speaker + 1 Toyota 3 Grey Front Right speaker + 1 Toyota 4 Violet Rear Right speaker + 3 Toyota 4 Green Black Rear Left speaker – 9 Toyota 3 White Black Front Left speaker – 10 Toyota 3 Grey Black Front Right speaker- 6 Toyota 4 Black Violet Rear Right speaker – N° Connector Color Description 3 Toyota 3 Red +12 V Permanent 4 Toyota 3 Orange +12 Ignition 8 Toyota 3 Black Ground

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2001 Ford Taurus/ Sable Cooling System Draining Filling and Bleeding Workshop Manual

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Filed Under (Ford Manuals) by admin on 19-02-2011

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CAUTION: Vehicle cooling systems are filled with Motorcraft Premium Engine Coolant VC-4-A (in Oregon VC-5, in Canada CXC-10) or an equivalent meeting Ford specification ESE-M97B44-A. NOTE: Less than 80% of the coolant capacity can be recovered with the engine in the vehicle. Dirty, rusty or contaminated coolant requires replacement. 1. Release the pressure in the cooling system by slowly turning the pressure relief cap one half to one turn counterclockwise to the first stop on the filler neck. When the pressure has been released, remove the pressure relief cap. 2. Raise and support the vehicle. For additional information, refer to Section 100-02 . 3. Remove the front splash shield. 4. Place a suitable container below the radiator draincock. Drain the coolant. 5. Close the radiator draincock when finished. Filling and Bleeding With RADKITPLUS 1. Using the special tool, install the RADKITPLUS and follow the RADKITPLUS manufacturer’s instructions to fill and bleed the cooling system. Filling Without RADKITPLUS CAUTION: Engine coolant provides freeze protection, boil protection, cooling efficiency and corrosion protection to the engine and cooling components. In order to obtain these protections, the engine coolant must be maintained at the correct concentration and fluid level. When adding engine coolant, use a 50/50 mixture of engine coolant and clean, drinkable water. To maintain the integrity of the coolant and the cooling system: * Add Motorcraft Premium Engine Coolant VC-4-A (in Oregon VC-5, in Canada CXC-10) or equivalent meeting Ford specification ESE-M97B44-A. * Do not add Motorcraft Specialty Engine Coolant VC-2 or an equivalent meeting Ford specification WSS-M97B44-D. Mixing coolants may degrade the coolant’s corrosion protection. * Do not add alcohol, methanol, brine or any engine coolants mixed with alcohol or methanol antifreeze. These can cause engine damage from overheating or freezing. * Do not mix with recycled coolant unless it meets the requirement of specification ESE-M97B44-A. Not all coolant recycling processes meet this specification. Use of such a coolant may harm the engine and cooling system components. 1. Install the front splash shield. 2. Lower the vehicle. 3. Fill the degas bottle with the correct engine coolant mixture. 4. Install the pressure relief cap. 5. Move the temperature blend selector to the full warm position. 6. WARNING: Do not stand in line with or near the engine cooling fan blade when revving the engine. Run the engine until it reaches operating temperature. 7. Add the correct coolant mixture to the degas bottle until the coolant level is between the COOLANT FILL LEVEL marks. 8. Turn off the engine and allow the cooling system to cool. Recheck the coolant level and fill the cooling system to the FULL mark on the degas bottle. 9. WARNING: Do not stand in line with or near the engine cooling fan blade when revving the engine. Repeat Steps 3 through 8 until the reservoir level is OK. Bleeding Without RADKITPLUS 1. Bleed the cooling system as follows: * Select the maximum heater temperature and blower motor speed settings. Position the control to discharge air from the A/C vents in the instrument panel. * WARNING: Do not stand in line with or near the engine cooling fan blade when revving the engine. Start the engine and allow it to idle. While the engine is idling, feel for hot air from the A/C vents. * CAUTION: If the air discharge remains cool and the engine coolant temperature gauge does not move, the engine coolant level is low in the engine and must be filled. Stop the engine, allow it to cool and fill the cooling system. Start the engine and allow it to idle until the normal operating temperature is reached. Hot air should discharge from the A/C vents. The engine coolant temperature gauge should maintain a stabilized reading in the middle of the NORMAL range and the upper radiator hose should feel hot to the touch. * Shut the engine off and allow it to cool. * Check the engine for coolant leaks. * Check the engine coolant level in the degas bottle and fill it as necessary.

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1999 Saturn SL1 L4-1.9L SOHC VIN 8 Engine – Driveability Concerns/ Cooling System DTC’s Set

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Filed Under (Saturn Manuals) by admin on 19-05-2012

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1. Disconnect engine coolant temperature sensor electrical connector and inspect sensor and connector terminals for corrosion and/or evidence of engine coolant. ^If terminals are corroded or if there is evidence of engine coolant proceed to step 4. ^If terminals are not corroded and there is no evidence of engine coolant, reconnect the electrical connector and continue to next step. 2. Perform one or both of the following checks to determine whether the engine coolant temperature sensor is providing the correct temperature indication. If engine coolant temperature sensor reading does not pass either of the above tests, continue with next step. ^If engine is at ambient temperature (vehicle has been sitting overnight or not started for several hours), use a Scan tool to compare the inlet air temperature ( IAT ) to the engine coolant temperature ( ECT ). These two readings should be within 2°C (4°F) of each other. ^If engine is at operating temperature, install a thermometer in the coolant recovery reservoir. With the engine running and A/C off, use a Scan tool to compare the engine coolant temperature sensor reading to the thermometer reading. These two readings should be within 8°C (15°F) of each other If engine coolant temperature sensor reading passes both of the tests above, refer to appropriate symptom diagnostic chart in the Engine/Emissions Controls Section of applicable Engine Service Manual. 3. Turn ignition off. 4Remove coolant surge tank cap. 5. Drain at least 1.9 L (2 Qt.) of engine coolant from the cooling system by opening radiator drain valve or removing engine drain plug. Collect engine coolant in a container. 6. Disconnect engine coolant temperature sensor electrical connector. 7. Remove engine coolant temperature sensor from cylinder head. 8. Obtain replacement engine coolant temperature sensor (P/N 21025106). 9. Use appropriate tap to clean sensor mounting hole of any thread sealant residue. 10. Install engine coolant temperature sensor in cylinder head. Torque: Engine Coolant Temperature Sensor: 8 Nm (71 in-lbs) 11. Inspect harness connector terminals for corrosion and/or evidence of engine coolant. If harness connector terminals are corroded or there is evidence of engine coolant, the harness connector must be replaced with new connector (P/N 12117087-includes: connector, terminals, wires, and splice sleeves). 12. Connect engine coolant temperature sensor connector. 13. Transfer engine coolant drained in step 5 into coolant surge tank. If necessary fill coolant surge tank to the FULL COLD range with 50/50 solution of correct type of antifreeze and clean water. 14. Start engine and check for leaks. 15. Run engine until upper radiator hose is hot, then add additional coolant if needed to bring the level to the FULL COLD level (1991-early 1997) or within the Min./Max. cold range (late l997-2001). 16. Install coolant surge tank cap.

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1998 Chevrolet Blazer Engine Oil Cooler Hose/ Pipe Removal And Installation Manual

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Filed Under (Chevrolet Manuals) by admin on 22-05-2012

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Removal Procedure 1. Remove the steering linkage shield. Refer to Steering Linkage Shield Replacement in Steering Linkage. Important: Have a drain pan ready for the engine oil to drain into. 2. Remove the bolt attaching the engine oil cooler lines to the remote (frame mounted) oil filter adapter. 3. Remove and discard the seals. 4. Remove the engine oil cooler line retaining rings from the engine oil cooler line quick connectors at the radiator engine oil cooler inlet and outlet. Follow the next two steps for the proper retaining ring removal procedure. 5. Using a bent-tip screwdriver or equivalent, pull on one of the open ends of the retaining ring in order to rotate the retaining ring. 6. Rotate the retaining ring around the quick connector until the retaining ring is out of position and can be completely removed. Discard the retaining rings. 7. Remove the engine oil cooler lines from the quick connectors at the radiator engine oil cooler inlet and outlet. Pull the lines straight out from the connectors. 8. Remove the remote engine oil filter lines support clamp bolt. Important: Have a drain pan ready for the engine oil to drain into. 9. Remove the bolt attaching the remote engine oil filter lines to the remote (frame mounted) engine oil filter adapter. 10. Hold the remote engine oil filter lines below the remote engine oil filter lines (engine mounted) adapter to drain the engine oil. 11. Remove and discard the seals. 12. Remove the bolt attaching the remote engine oil filter lines to the remote engine oil filter lines (engine mounted) adapter. 13. Remove and discard the seals. 14. Clean all of the components in a suitable solvent, and dry them with compressed air. 15. Inspect the fittings, the connectors, the cooler lines, the cooler, the filter lines, and the remote filter adapter for damage, distortion, or restriction. Replace parts as necessary. 16. Flush the engine oil cooler, the engine oil cooler lines, the remote engine oil filter adapter, and the remote engine oil filter lines with the same type of engine oil normally circulating through the engine. Installation Procedure

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1998 Acura 3.5RL FUEL PUMP RELAY (3.5RL) INSTALLATION MANUAL

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Filed Under (Acura Manuals) by admin on 13-06-2011

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Fuel pump relay is located in the front of the trunk. Turn ignition switch to START position. If engine starts, go to next step. If engine does not start, go to FUEL PUMP RESISTOR (3.5RL) . 2. Turn engine off and ignition on. Measure voltage between ground and PCM 12-pin connector terminal No. 4 (Green wire). If battery voltage is present, go to next step. If battery voltage is not present, go to step 4). 3. Start engine and run at 3000 RPM with no loads and transmission in Park or Neutral, until radiator fan comes on. Allow engine to idle for at least one minute. Turn engine off. Disconnect vacuum hose No. 21 from vacuum manifold. Apply 8-12 in. Hg (27-40 kPa) vacuum to Manifold Absolute Pressure (MAP) sensor. Start engine and run at 6500 RPM with no loads and transmission in Park or Neutral. Measure voltage between ground and PCM 12-pin connector terminal No. 4 (Green wire). If less than one volt is present, fuel pump relay circuit is okay. If one volt or more is present, substitute a known good PCM, then recheck. If symptom or indication goes away, replace original PCM. 4. Turn ignition off. Disconnect PCM 26-pin and 12-pin connectors. Disconnect fuel pump relay 4-pin connector. Using a fused jumper wire, connect fuel pump relay connector terminals No. 2 (Red/White wire) and No. 4 (Green wire). Turn ignition on. Measure voltage between ground and PCM 12-pin connector terminal No. 4 (Green wire). If battery voltage is not present, go to next step. If battery voltage is present, replace fuel pump relay. 5. Remove jumper wire. Measure voltage between ground and fuel pump relay 4-pin connector terminal No. 2 (Red/White wire). If battery voltage is present, repair open or short in Green wire between PCM and fuel pump relay. If battery voltage is not present, repair open in Red/White wire between fuel pump relay and FUEL PUMP fuse No. 22 (20-amp), located in underdash fuse/relay box. FUEL PUMP RESISTOR (3.5RL) 1. Fuel pump resistor is located in the left corner of the trunk. Disconnect fuel pump resistor 2-pin connector. Turn ignition on and measure voltage between ground and fuel pump resistor connector terminal No. 2 (Yellow wire) within 2 seconds. If battery voltage is present for 2 seconds after ignition is turned on, go to next step. If battery voltage is not present as specified, check PGM-FI relay. See PGM- FI MAIN RELAY . 2. Turn ignition off. Using a jumper wire, connect fuel pump resistor connector terminals No. 1 (Black/Yellow wire) and No. 2 (Yellow wire). Turn ignition switch to START position. If engine does not start, go to next step. If engine starts, replace fuel pump resistor. 3. Turn ignition off. Disconnect fuel unit sub-harness Gray, 10-pin connector located in front of trunk, above fuel pump access panel, next to Gray, 20-pin connector. Turn ignition on and measure voltage between ground and sub-harness connector terminal No. 7 (Black/Yellow wire) within 2 seconds. If battery voltage is present for 2 seconds after ignition is turned on, check fuel pump. If battery voltage is present as specified, repair open in Black/Yellow wire between fuel pump resistor and fuel pump

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2003 Mercedes Benz CLK 500 Engine Controls Cooling Fan Runs Continuously

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Filed Under (Mercedes-benz Manuals) by admin on 12-05-2012

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Engine Fan Runs Constantly If you receive customer reports in the above model vehicles of the engine fan running constantly with code P2073(004) Electric fan for engine & AC, open circuit; this may be caused by the wiring harness between the ECU and the engine fan or the engine control unit fan end stage malfunctioning. To resolve, perform the below procedure. Note: Only vehicles as outlined in Service Campaign Bulletin No. 2003110006 are affected, see vehicle range shown. When performing Service Campaign Bulletin No. 2003110006 only, the engine ECU does not need to be exchanged. All engine ECUs exchanged under warranty for the above condition must be accompanied by the freeze frame data for the respective DTC. Claims submitted without this information will be debited back to the dealer Remedy: 1) Check wiring harness between engine ECU connector (pin 39) and engine fan connector (pin 4) for continuity. IF OK, proceed as follows. 2) Replace engine control unit (AR07.08-P-7008P) 3) Install adapter harness a. Remove lower underbody panel b. Disconnect engine wiring harness plug from engine fan C. Connect adapter wiring harness between fan connector and engine wiring harness. d. Secure adapter wiring harness with loom ties (Figure 1). e. Secure adapter wiring harness plug to engine fan (Figure 2)

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EDELBROCK ENGINE MOUNT ADAPTER PLATES For Converting Small Block Chevy Applications to LS1 INSTALLATION INSTRUCTIONS

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Filed Under (Chevy Manuals) by admin on 27-12-2011

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PRE-INSTALLATION PROCEDURE General Motors vehicles came with many different engine and transmission combinations. This section is intended to verify that all the correct components are in place prior to installation. If the vehicle is currently equipped with a small block Chevrolet V8, then the engine isolator for the current application will work with the Edelbrock Adaptor plates. See the next page for further notes on various applications. A-BODY APPLICATIONS: 1964 – 1967: Vehicles that are being converted from six cylinder or a non-Chevrolet engine can use engine frame stands for the 283 to 327 from a salvage yard or reproduction suppliers such as OPGI and Yearone; engine isolators can be of the OEM rubber type from a parts supplier or polyurethane safety mounts from Energy Suspension: part #3.1114 (zinc plated), or #3.1115 (chrome). 1964 – 1967 applications will require mildly slotting the engine frame stand mounting holes, as shown in Figures 1 and 2. FIGURE 1 FIGURE 2 – 1968 – 1972: From 1968 to 1972, Chevrolet used two different frame stands with matching engine isolators. Type one is the 307 (and some early 1968 327′s), while type two includes all engines from the later 1968 327′s through to the 454, encompassing all engine sizes in-between. If you have obtained frame stands from another vehicle, use the following procedure to identify your mount system: measure the ears of the engine isolator where the engine mounting bolt goes, the inside dimension is 2 5/8″for the 307 cid (Figure 3) and 2 3/8″for the larger sized engine (Figure 4). Frame stands for the late 327,350 to 454 are also available from reproduction suppliers such as OPGI and Yearone, engine isolators can be of the OEM rubber type from a parts supplier or polyurethane safety mounts from Energy Suspension: part #3.1114 (zinc plated) #3.1115 (chrome) for the 307, part #3.1117 (zinc plated) or #3.1118 (chrome) for the late 327 to the 454. FIGURE 3 (307) FIGURE 4 (350 et al) F-BODY AND X-BODY APPLICATIONS: 1967 – 1969 F-body and 1968 – 1974 X-body: Vehicles that are being converted from six cylinder or a non-Chevrolet engine will require engine isolators that match the engine frame stand. There are a variety of styles depending on engine size and model year, so get the engine isolators and frame stands which are available from reproduction suppliers such as Classic Industries and Yearone. Engine isolators can be of the OEM rubber type from a parts supplier or polyurethane safety mounts from Energy Suspension. There are two basic types of engine isolators; to identify them measure the distance between the tab for the engine mount through bolt, if it is 2-5/8″use Energy Suspension #3.1114 (zinc plated) #3.1115 (chrome), if the distance is 2-3/8″use #3.1117 (zinc plated) #3.1118 (chrome).

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2000 Dodge Dakota & Durango Power Windows ADJUSTMENTS

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Filed Under (Dodge Manuals) by admin on 18-06-2012

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ADJUSTMENTS WINDOWS Remove door trim panel. See DOOR TRIM PANEL under REMOVAL & INSTALLATION. Loosen bolts holding window to regulator. Raise window fully, seating window in frame. Tighten bolts. Install door trim panel. TROUBLE SHOOTING POWER WINDOWS On Dakota, inspect circuit breaker No. 20 (20-amp) in junction block. On Durango inspect circuit breaker No. 21 (25-amp) in junction block. On all models, junction block is located on left end of instrument panel. Inspect fuse No. 9 (40-amp on Dakota, 50-amp on Durango) in Power Distribution Center (PDC). PDC is located in left front corner of engine compartment. Inspect power window system ground circuit. See WIRING DIAGRAMS . SYSTEM TESTS ALL WINDOWS INOPERATIVE Dakota 1. Check circuit breaker for power window system. See TROUBLE SHOOTING . Replace circuit breaker as necessary. If circuit breaker is okay, go to next step. 2. Disconnect negative battery cable. Remove driver’s front power window switch. See POWER WINDOW SWITCH under REMOVAL & INSTALLATION. Check for continuity between ground and terminal No. 3 (Black wire) at driver power window switch wiring harness connector. If continuity exists, go to next step. If continuity does not exist, repair open in Black wire between driver power window 2000 Dodge Durango 2000 ACCESSORIES & EQUIPMENT’ ‘Power Windows – Dakota & Durango 2000 Dodge Durango 2000 ACCESSORIES & EQUIPMENT’ ‘Power Windows – Dakota & Durango switch connector and ground. See WIRING DIAGRAMS . 3. Connect negative battery cable. Turn ignition on. Measure voltage between ground and terminal No. 5 (Tan wire) at driver’s power window switch wiring harness connector. If battery voltage is present, check driver power window switch. See POWER WINDOW SWITCH under COMPONENT TESTS. If battery voltage is not present, repair open Tan wire between driver power window switch connector and ignition switch. See WIRING DIAGRAMS . See POWER DISTRIBUTION article in WIRING DIAGRAMS. Durango 1. Check circuit breaker for power window system. See TROUBLE SHOOTING . Replace circuit breaker as necessary. If circuit breaker is okay, go to next step. 2. Disconnect negative battery cable. Remove driver’s front power window switch. See POWER WINDOW SWITCH under REMOVAL & INSTALLATION. 3. Check for continuity between ground and terminal No. 5 (Black wire) at driver’s power window switch wiring harness connector. If continuity exists, go to next step. If continuity does not exist, repair open in Black wire between driver’s power window switch connector and ground. See WIRING DIAGRAMS . 4. Reconnect negative battery cable. Turn ignition on. Measure voltage between ground and terminal No. 4 (Tan wire) at driver’s power window switch wiring harness connector. If battery voltage is present, check driver’s power window switch. See POWER WINDOW SWITCH under COMPONENT TESTS. If battery voltage is not present, repair open Tan wire between driver power window switch connector and ignition switch. See WIRING DIAGRAMS . See POWER DISTRIBUTION article in WIRING DIAGRAMS. ONE WINDOW INOPERATIVE

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Toyota Landcruiser / Scout Weatherproof Harness Wire Harness Installation Instructions

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Filed Under (Toyota Manuals) by admin on 05-03-2012

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Grounding the Automobile A perfectly and beautifully wired automobile will nevertheless have bugs and problems if everything is not properly grounded. Do not go to the careful effort of installing a quality wire harness only to neglect proper grounding. Note: The Painless Wire Harness Kit includes no ground wire except the black wire from the two headlamp connectors. You must supply ground wire (14-16 gauge) for all circuits. 6.3.1 Connect a Ground Strap or Cable (2-gauge minimum) from the Negative Battery terminal to the automobile chassis (frame). 6.3.2 Connect a Ground Strap from the Engine to the chassis (even a 10-gauge wire is too small) . DO NOT RELY UPON THE MOTOR MOUNTS TO MAKE THIS CONNECTION . 6.3.3 Connect a Ground Strap from the Engine to the Body. 6.3.4 If you have a fiberglass body you should install a terminal block to ground all your Gauges and Accessories. Ground the Terminal Block with at least a 12-gauge wire to the chassis. 6.4 Terminal Installation and Making Connections Note: In the following steps you will be making the circuit connections. Before you start, you should carefully read Sections 7.0 through 10.0 , as appropriate, and continually refer to Section 10.0 , DOUBLE- CHECKING your routing and length calculations before cutting any wires and making connections. Give special attention to Turn Signal and Ignition Switch connections. These can be somewhat confusing. 6.4.1 Have all needed tools and connectors handy. 6.4.2 Select the correct size terminal for the wire and stud application. 6.4.3 Determine the correct wire length and cut the wire. Remember to allow enough slack in the harness and wires at places where movement could possibly occur, such as automobile body to frame, frame to engine, etc. Double-check your calculations. 6.4.4 Strip insulation away from wire. Strip only enough necessary for the type of terminal lug you are using. Note: In the following step, make sure that the terminal is crimped with the proper die in the crimping tool. An improper crimp will NOT make a good connection. 6.4.5 Crimp the terminal onto the wire. CAUTION: DO NOT OVER-CRIMP! 6.4.6 Connecting the harness throughout the groups is a redundant process. Make sure that each wire is FIRST properly routed and THEN attach. DO NOT ATTACH FIRST THEN ROUTE AFTERWARD. 6.4.7 When all wires are attached, tighten the mounts and ties to secure harness permanently. 6.5 Testing The System 6.5.1 Use a small (10 amp or less) battery charger to power up the vehicle for circuit testing. If there is a problem anywhere, the battery charger’s low amperage and internal circuit breaker will provide circuit protection. CAUTION: IF YOU HAVE NOT YET DISCONNECTED THE BATTERY FROM THE AUTOMOBILE, DO SO NOW! DO NOT CONNECT THE BATTERY CHARGER WITH THE BATTERY CONNECTED. Connect the battery charger’s NEGATIVE output to the automobile chassis or engine block and its POSITIVE output to the automobile’s positive battery terminal. 6.5.2 INDIVIDUALLY turn on each light, ignition, wiper circuit, etc. and check for proper operation. Note: The turn signals will not flash properly if you do not have both the front and rear bulbs installed and connected. 6.5.3 When all circuits check out THEN attach the battery cable to the battery for vehicle operation

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1999-2006 Volkswagen A4 Engine Speed Sensor G28 Checking

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Filed Under (Volkswagen Manuals) by admin on 31-01-2011

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Special tools, testers and auxiliary items required Multimeter . Wiring diagram. Test requirements The Motronic Engine Control Module (ECM) J220 fuses OK. Battery voltage at least 12.5 volts. All electrical consumers such as, lights and rear window defroster, switched off. Vehicles with automatic transmission, shift selector lever into position “P” or “N” . A/C switched off. Ground (GND) connections between engine/transmission/chassis OK. Ignition switched off. Test procedure Perform a preliminary check to verify the customers complaint. Refer to Preliminary Check Start diagnosis The Engine Speed (RPM) Sensor G28 detects RPM and reference marks. Without an engine speed signal, the engine will not start. If the engine speed signal fails while the engine is running, the engine will stop immediately Function test Connect the scan tool. Switch the ignition on. Using the scan tool, check the engine speed: End diagnosis and switch ignition off. If the specified value was not obtained: Checking internal resistance Disconnect the gray Engine Speed (RPM) Sensor G28 electrical harness connector 7 arrow 7 . Using a multimeter , check the Engine Speed (RPM) Sensor G28 terminals 2 to 3 7 see insert 7 for resistance. Specified value: 0.7 to 1000 kOhm Check Engine Speed (RPM) Sensor G28 terminals 1 to 2 and 1 to 3 for short circuits. Specified value: ? (infinity) If any of the specified values are not obtained: Replace the Engine Speed (RPM) Sensor G28 . Refer to Engine Mechanical, Fuel Injection and Ignition 7 Repair Group 13 . If the specified values are obtained: Checking wiring If the manufacturers test box is being used. Perform the following step. Install the test box Adapter F/VAG1598 (68 Pin) VAG1598/22 . If the manufacturers test box is not being used. Perform the following step. Remove the Motronic Engine Control Module (ECM) J220 . Refer to Motronic Engine Control Module J220, Replacing .

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