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▷▷ 2021 ▷ How to connect a Denso alternator ventos.site

5 julio, 2021


wire denso alternator

by Stephen Benham

New car gasoline engines image by Christopher Dodge from Fotolia.com

Denso manufactures replacement parts for many automobiles, from air conditioning components, alternators, and fuel pumps to smaller items like spark plugs and windshield wipers. Denso’s regular aftermarket alternators produce between 40 and 160 amps, depending on the type, but they also produce vehicle-specific alternators that can produce more amps. Alternator wiring varies depending on the type of Denso alternator installed in your car, but it generally falls into two categories: three-terminal wiring or four-terminal wiring.

Preparation

Step 1

Put on lightweight protective rubber gloves before wiring your Denso alternator. You can accidentally touch a battery terminal and will certainly get your hands dirty if you don’t use them.

Step 2

Locate the black and red battery cables connected to your car battery, as you must disconnect them before wiring your Denso alternator. Remove the black wire attached to the negative battery terminal with a wrench. The terminal is labeled “Neg” or “-“. This isolates the electricity from the car.

Step 3

Remove the red wire connected to the positive battery terminal with a wrench. It is labeled “Pos” or “+”. Route the two cables away from the battery terminals.

Look on the back of the Denso alternator to see if it has three or four terminals. Follow the steps in Section 2 and Section 4 if you have three terminals or follow the Steps in Section 3 and Section 4 if you have four terminals.

Three terminal wiring

Step 1

Look at the terminals and labels on the back of the Denso alternator. One has a large plastic plug labeled “B” or “Bat.” The other two are smaller plugs and are labeled “Ig” and “S” or “SL.”

Step 2

Look for two thin wires near the Denso alternator. You will see that they have plastic plugs on the end and are slightly different sizes. The opposite end of one wire goes to the ignition warning lights, while the other is a low voltage wire that goes to the fuse box. Each plug can only fit the correct socket, so insert one of the plugs into one of the sockets. If it fits, just push it in until it clicks. Insert the plug of the cord into the small socket.

Look for the thick red wire near the alternator. It has a heavy plastic plug on the end. The opposite end connects to the starter motor and battery. Insert the plug from the end of the cord into the large terminal socket labeled “B” or “Bat.” Push it in until it snaps into place.

Four terminal wiring

Step 1

Look at the terminals and labels on the back of the Denso alternator. One has a large plastic plug labeled “B” or “Bat.” The other three are smaller plugs and are labeled “Ig”, “PL” and “S” or “SL”.

Step 2

Look for three thin wires near the Denso alternator. You find that they have plastic end caps and are different sizes, so you can’t go wrong with the wiring. The opposite end of one wire goes to the power-on warning lights, another is a permanent low amp wire that goes to the battery, and the third is a low voltage wire that goes to the fuse box. Each plug can only fit the correct socket, so insert one of the plugs into one of the three sockets. If it fits, just push it in until it clicks; if not, try inserting it into one of the other two. It is a simple question of elimination. Remember that each cord can only fit in one socket.

Look for the thick red wire near the alternator. It has a heavy plastic plug on the end. The opposite end connects to the starter motor and battery. Insert the plug from the end of the cord into the large terminal socket labeled “B” or “Bat.” Push it in until it snaps into place.

Termination

Step 1

Check that wires and cables are securely connected. Gently push and pull on each wired connection to check that it does not pull out of the plug.

Step 2

Reconnect the red battery cable to the positive battery terminal with a wrench.

Reconnect the black battery cable to the negative battery terminal with a wrench. Make sure both cables are securely connected.

Articles will need

  • Pair of rubber gloves
  • Wrench

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