Recondition Battery Guide
6, Check voltage at ignition coil terminal 15 against ground (ignition on). Voltage min. 5 V at battery voltage of min. 11 V (checked simultaneously) 7. Check voltage at ignition control unit terminal 4 against ground (ignition on). Voltage must equal battery voltage. 10. Check starting voltage. Connect voltmeter at ballast resistor shown (0.4 Ohm). Operate starter. Voltmeter must show battery voltage.
Voltage at term. 15 at least 3 V at battery voltage of at least 11 volts (measure at same time). Disconnect line leading to starter term. 15a at 0.4 ohm resistor and connect voltmeter. Operate starter. Measured voltage must be same as battery voltage (measured at same time). 11. Check voltage at ignition control unit plug terminal 15 against ground. Voltage must be same as battery voltage.
A battery load tester is required for a load voltage test. The test is made by applying a high resistive load to the battery terminals and then measuring battery voltage. The battery should be fully charged for the most accurate results. The battery cables must be disconnected before making the test. If the voltage is below that listed in Table c, the battery should be replaced.
An open-circuit voltage test checks battery voltage by connecting an accurate digital voltmeter to the battery posts. Before making any open circuit voltage test on the battery, first load the battery with 15 amps for one minute, for example by turning on the headlights without the engine running. Open-circuit voltage levels and their corresponding percentages of charge are shown in Table b. Table b. Open Circuit Voltage and Battery Charge Table b. Open Circuit Voltage and Battery Charge
Reading Battery voltage Reading Battery voltage. Reading Battery voltage. Reading Battery voltage Reading Battery voltage. Reading Battery voltage. Reading Battery voltage Air-distribution slide at off. Reading Battery voltage Display Battery voltage. Reading Battery voltage Reading Battery voltage Reading Battery voltage Reading Battery voltage
Turn valve to position 2 and let fuel pumps(s) run exactly 1 minute by pulling off two-pin plug on mixture control unit. The fuel pump(s) in cars from 1979 models can be run by supplying battery voltage to multiple-pin plug terminal 7 (red white) with a piece of wire. The ignition need not be turned on.
Display battery voltage Display battery voltage Press EIN BESCHLEUNIGEN key Display battery voltage Press AUFNAHME key (RECORD). Display battery voltage Display 0 volts Operate brake Display battery voltage Display battery voltage Operate clutch (switch interrupts) Display 0 volts
If the battery is discharged, e.g. in winter or after the car has been parked for a long time, the battery of another car can be used for starting with the help of jumper cables. Make sure the voltage of both batteries is the same. Both batteries must be 12 volt types. The capacity (Ampere hours, Ah) of the booster battery must not be substantially less than that of the discharged battery. The discharged battery must be correctly connected to the vehicle's electrical system. f A discharged battery can freeze even at 23 F -5 C. positive terminal of the discharged battery first, then connect it to the positive terminal of the donor battery. the negative terminal of the donor battery, then connect it to a suitable grounding point on the vehicle with the discharged battery. This grounding point must lie as far as possible from the battery. If a suitable grounding point is to be found only on the donor vehicle, the negative cable must first be connected to the terminal of the discharged...
The fuel pump(s) in cars from 1979 models can be run by supplying battery voltage to multiple-pin plug terminal 7 (red white) with a piece of wire. The ignition need not be turned on. The fuel pump(s) in cars from 1979 models can be run by supplying battery voltage to multiple-pin plug terminal 7 (red white) with a piece of wire. The ignition need not be turned on.
The integrated tilt sensor is active analogously to the output Control of External Electronics. During this time, a change in the vehicle tilt triggers an alarm. The current tilt of the vehicle is stored as a reference value during a calibration phase defined for the tilt sensor. The system has an alarm siren with a rechargeable battery supply which can emit an alarm if the vehicle battery the vehicle battery
Terminal 15 Battery voltage with ignition switched on 4. Terminal 61 Battery voltage with engine running 1. Terminal 87a Battery voltage with ignition switched on. 2. Terminal Hn Battery voltage with burglar alarm primed and triggered permanently in Swiss vehicles).
Disconnection of the vehicle battery deletes the memories for average speed and average consumption. As a result, the displayed range on remaining fuel can be markedly different or even 0. The outside temperature indicator loses its memory effect. In other words, the indicated outside temperature can be too high due to the heat radiated when the vehicle is hot.
Display battery voltage If battery voltage is displayed, turn off ignition and pull off all plugs on fuel injectors. Check power flow and resistance between the 5-pin plug of ballast resistors and terminal 2 of each fuel injector plug with an ohmmeter. Check current path according to the wiring diagram if battery voltage is not displayed.
Connect voltmeter on terminals 9 and 5 of disconnected LH control unit plug, jrn on ignition. Connect W 21 (CEB) to ground with a jumper wire. Display battery voltage Connect voltmeter on connected plug W 23 (CEB) and ground. Display battery voltage Br dge terminals 30 and 87 on socket of relay XXV (LH-Jetronic). Display battery voltage at connected plug W 23 (CEB) and ground. Check relay and activation.
Remove LH relay XXV and bridge terminals 87 and 30 at the relay base. Connect voltmeter to the valve plug contacts and ground, using the test leads. Display battery voltage If no battery voltage is displayed, check the current flow path according to the wiring diagram.
Push lever on tempostat switch forward (set). Display battery voltage. Push down lever on tempostat switch (repeat). Display battery voltage. There should be battery voltage at terminal 5. 2. Connect tester between terminals 6 and 12. There should be battery voltage when operating the brake. 3. Connect tester between terminals 8 and 12. Display battery voltage.
Cars with discharged or dead batteries can be jump-started from another car. When jump-starting the engine, always note the following warnings. Connect one end of positive (+) cable to positive (+) post of good battery (1). Connect other end of positive (+) cable to positive (+) post of dead battery (2). Connect one end of negative (-) cable to negative (-) battery post of good battery (3). Connect opposite end of negative cable (-) to engine block of car with dead battery (4). Start car with good battery and run engine at about 2,000 rpm, then start car with dead battery.
Crash sensor left contact resistance against battery voltage Crash sensor right contact resistance against battery voltage Crash sensor left short against battery voltage Crash sensor right short against battery voltage Ignition pill circuit 1 contact resistance against battery voltage Ignition pill circuit 2 contact resistance against battery voltage
Headlights and instrument panel illumination that are dim or gradually getting dimmer generally indicate a problem with the battery or charging system. The battery charge indicator light may come on as the lights are dimming. In either case, the engine and accessories are running off the battery, and will soon discharge it. If possible, do not stop the engine unless you have the capability to jump start it. There may not be enough power in the starting system to restart the engine. Instead, turn off as many electrical consumers as possible. This will allow the car to be driven farther before you lose all battery power.
The high-voltage charge is created by the ignition coil. In the primary circuit, battery voltage is applied to the ignition coil to charge it. When the primary circuit is opened, the coil discharges its high voltage. The secondary ignition circuit ignition rotor, distributor cap, spark plug wires and spark plugs distributes the high voltage to the cylinders to ignite the air fuel mixture. Ignition timing refers to the position of the piston in the cylinder when the coil discharges.
Battery charging The charge available in your battery can be measured with a battery hydrometer. We recommend that the battery voltage be tested by your Porsche dealer who has the appropriate equipment. If the car is not driven for prolonged periods, the battery must be charged at least every 6 weeks. A discharged battery allows rapid formation of sulfates, leading to premature deterioration of the plates. Slow battery charging 1. Pay attention to all warnings and follow instructions that come with your battery charger. 3. Remove battery. After the battery is connected or after an exhaustively discharged battery is charged, the multifunctional PSM light lights up on the instrument panel and a message appears on the on-board computer to indicate a fault. f Do not insert the ignition key into the ignition lock if the vehicle battery is discharged. The ignition key can no longer be removed. 5. Remove battery. Replacement battery - Lithium CR 2032, 3 volts
A short circuit is exactly what the name implies. The circuit takes a shorter path than it was designed to take. The most common short that causes problems is a short to ground where the insulation on a positive (+) wire wears away and the metal wire is exposed. When the wire rubs against a metal part of the car or other ground source, the circuit is shorted to ground. If the exposed wire is live (positive battery voltage), a fuse will blow and the circuit may be damaged.
Display battery voltage At the LH control unit, connect a voltmeter to terminals 17 and 9, and run to terminal 21 (ground on body) using test leads. The LH relay must be energized. Display battery voltage cover over the ring pipe). Remove LH relay XXV and bridge terminals 87 and 30 at the relay base. Connect voltmeter to the valve plug contacts and ground, using the test leads. Display battery voltage If no battery voltage is displayed, check the current flow path according to the wiring diagram. If the flap does not open At the LH control unit plug, connect terminals 17 and 21 with the test leads. Separate the plug connection at the solenoid valve. Connect voltmeter to plug socket (2) and ground. Display battery voltage At the control unit plug, connect terminals 17 and 21 with the test leads. Disconnect the solenoid valve plug and connect the voltmeter between the plug connection and ground with the aid of test leads. Display battery voltage
3.1 Terminal 1 must have battery voltage with the ignition turned on. 3.2 Terminal 2 must have battery voltage with the ignition key in position R (radio position). 3.3 Terminal 5 must have battery voltage when the speed is greater than or equal to 1.8 km h and when the doors on cars with central locking are locked.
Use the test leads to connect terminals 17 and 21 on the LH control unit plug after it has been disconnected. Display battery voltage Remove LH relay XXV and bridge terminals 87 and 30 at the relay base. Display on voltmeter connected to air mass sensor plug battery voltage. If there is a battery voltage display, check the LH relay and its activation.
DIY Battery Repair
You can now recondition your old batteries at home and bring them back to 100 percent of their working condition. This guide will enable you to revive All NiCd batteries regardless of brand and battery volt. It will give you the required information on how to re-energize and revive your NiCd batteries through the RVD process, charging method and charging guidelines.