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REV / SPEED METER Vehicle Specific Wiring Diagram Installation

Installation Precautions ?Do not use electro taps in the installation of this product. Electro taps can become loose over time causing the unit to malfunction. This can also lead to vehicle and product damage. Be sure to use wire crimpers and the included splices for a secure connection. ?Be sure that the harness is not exposed to metal. Always wrap all connections with electrical tape. ?How to use the Fittings Strip 5mm from wire Insert sleeve over wire Bend back exposed wire Place male fitting over This ECU terminal arrangement diagram is viewed from the direction of the arrow. The direction of the ECU varies depending upon the vehicle. Perform the installation work after confirming the connector shape and the number of pins. ?If any abnormal noise or abnormal smell is sensed during the installation work of this product stop the work immediately and contact the distributor or your nearest A*PEX business office Continuing the installation under such conditions may cause an electric shock or fire causing damage to electric devices.

Ford Windstar 3.8L The battery light is on but the alternator is charging Service Manual

Procedures 1. Disconnect the alternator and the Powertrain Control Module (PCM). Check the Violet (VT) (GENerator MONitor or GENMON) wire from the alternator to pin 20 of the PCM connector and the Red/Pink (RD/PK) (GENerator COMmand or GENCOM) wire from the alternator to pin 45 of the PCM for high resistance, an open, or a short to ground. Repair the wiring as needed. 2. If the wiring checks OK, reconnect the PCM and alternator. Start the engine and monitor the VT wire for a roughly 0-10v square wave signal. The signal will be around 40-50% normally with no loads on the system and minimal charging system output. As the load increases, the duty cycle should increase (NOTE: the duty cycle is a positive duty cycle so as the duty cycle increases, the voltage high time increases). 3. If there is no signal on the wire, disconnect the alternator and with key on check the VT wire for roughly 9-10v from the PCM. If OK, jump the Orange/Light Blue (OG/LB) wire to battery voltage and recheck operation with everything connected. This wire should be battery voltage at all time. If the OG/LB wire has battery voltage, the VT wire shows voltage from the PCM but there is no signal on it with the alternator charging, suspect a faulty, defective or incorrect alternator

1992 Toyota Cressida Wiring Diagram

tem Wire ColorPolarity Wire Location 12V white – white/red Positive (+) steering column Starter black/white Positive (+) steering column Starter 2 none Ignition black/yellow Positive (+) steering column 2nd Ignition black/red Positive (+) steering column 3rd Ignition none Accessory blue/red Positive (+) steering column Accessory 2 none Tachometer black/yellow check conn(ig-) Power Door (Lock) Wiring Diagram for [ Negative (-) ] Door Lock green/red Negative (-) pass kick or theft ecu Power Door (Unlock) Wiring Diagram for [ Negative (-) ] Door Unlock green/whiteNegative (-) pass kick or theft ecu Door Trigger red/white Negative (-) theft ecu[1] Dome Supervision Wiring Diagram for [ none ] Dome none none none Headlights red/yellow Negative (-) steering column Parklight Positive green Positive (+) dimmer controll or dkp Parklight Negative green/whiteNegative (-) steering column Wipers blue/black Positive (+) steering column Left Front Window (Up/Down) grn/wht – red/blu in drivers door Right Front Window (Up/Down) pnk/blk – pnk in drivers door or dkp Left Rear Window (Up/Down) red – red-yel A in drivers door or dkp Right Rear Window (Up/Down) grn/blk – red/blk A in drivers door or dkp Trunk/Hatch Pin red/white Negative (-) at light, or theft ecu Hood Pin tied with doors Trunk/Hatch Release Wiring Diagram for [] Trunk/Hatch none Factory Alarm (Arm) arms with lock Factory Alarm (Disarm) disarms with unlock Horn white/red Negative (-) st.column or theft ecu Brake green/black Positive (+) brake switch Door Motor (Lock) none none none Door Motor (Unlock) none none none

1985 Toyota 4Runner Alternator Upgrade Project Installation

the first and most important thing to do when you receive your replacement alternator, assuming it’s not a direct replacement, is to make up a simple measuring jig for it. This is nothing more than a 1′ or 1 ½” angle with 2 holes drilled to simultaneously hold both alternators by the rear of the lower (i.e. longer) mounting tab. See Figure 3 for the one I built in about 1 minute. This fixture allowed me to line up the pulleys, and then measure the difference between the back of the lower mounting tab and the front of the tab, giving me the new measurement for the lower mounting bracket Figure 3. Measurement fixture; OEM alternator in the rear, Powermaster PWM-47294 alternator in front. Pulleys are lined up; note how easy it is to measure the distance from measurement fixture (the 1 ½” angle) to the front of the lower mounting tabs of both alternators. The difference in this distance is the measurement that the lower mounting bracket needs to be lengthened. Note the use of the 8 washers to move the Powermaster alternator forward. Note from Figure 2 that the OEM lower mounting tab is slightly longer than the Powermaster 47294 (2.285″ vs. 2″). From the measurements taken from the fixture, I then cut the lower mounting bracket and rewelded it, making it approximately ¾” longer. For strength, I added a ¼” x 1″ x 2.5″ long steel flat bar to the side of the bracket. See Figure 4 for a picture of the lower mounting bracket as modified and installed. When I rewelded the lower bracket, I made it approximately one 3/8″ washer (~.085″) longer than I thought I needed. As it turned out, this was fortuitous since when tightening the lower bracket, it pulls the front tab and therefore the alternator and its pulley, to the rear by a very slight amount. This added length was just enough to keep the alternator pulley lined up with the crankshaft pulley


ON-VEHICLE TESTING NO LOAD TEST 1) Disconnect alternator terminal “B” wire. Using an ammeter and voltmeter, connect negative ammeter lead to disconnected alternator terminal “B” wire and positive lead to alternator terminal “B”. Connect voltmeter positive lead to alternator terminal “B” and negative lead to ground. See Fig. 1. Fig. 1: Charging Circuit Testing Courtesy of Toyota Motor Sales, U.S.A., Inc. 2) Start engine and increase engine speed to 2000 RPM. Voltmeter and ammeter should read according to specification. See ALTERNATOR OUTPUT SPECIFICATIONS table. 3) If voltage is more than specified, replace IC regulator. If voltage is less than specified, ground “F” (full field) terminal. See Fig. 2, 3 or 4. 4) If voltage now climbs above specified range, replace IC regulator. If voltage remains below specified range, repair or replace alternator. ALTERNATOR OUTPUT SPECIFICATIONS @ 2000 RPM pplication Amps (1) Volts Cressida …………………. 10 ………………… 14.0-15.0 Land Cruiser ……………… 10 ………………… 13.8-14.4 All Others ……………….. 10 ………………… 13.9-15.1 (1) – With temperature at 77F (25C). Fig. 2: Alt Full Field Output Test (Camry, Celica, Corolla 4A-GE, Cressida, MR2, Supra) Courtesy of Toyota Motor Sales, U.S.A., Inc. Fig. 3: Alt Full Field Output Test (Corolla 4A-F 4A-FE, Land Cruiser, Pickup, 4Runner)