Antenna does not come up - 1994 Lexus LS 400

The configuration of a car stereo antenna depends on the type of antenna that you have in your vehicle. Here are the steps for configuring a few common types of car stereo antennas:

1. Manual Antenna:

• Locate the antenna mast and the antenna base.
• If the antenna mast is extended, pull it down until it clicks into place.
• If the antenna mast is retracted, turn the antenna base clockwise to extend it.
• Tighten the antenna base to secure it in place.

1. Power Antenna:

• Turn the car stereo on.
• If the power antenna is not already extended, press the "Power" button on the stereo or on the dashboard to extend it.
• If the power antenna does not extend, check the fuse and the wiring connections to make sure they are secure.

1. Amplified Antenna:

• Connect the antenna cable to the amplifier.
• Connect the amplifier to the power source and ground.
• Turn the amplifier on.
• If the antenna does not extend, check the fuse and the wiring connections to make sure they are secure.

It's important to note that these are general steps and the specific configuration for your car stereo antenna may differ. If you are unsure about how to configure your antenna, it is best to consult the owner's manual or a professional installer for assistance.

P70496 This is not a code . Has nothing to do with emission's .Now P0496 does P0496
Evaporative Emission (EVAP) System Flow During Non-Purge

Purge solenoid is probably bad .
Automotive Evaporative Emissions Part One

B2470
Cellular Phone Antenna Circuit Malfunction
VCIM
DTC B2470
DTC B2470 04: Cellular Phone Antenna Circuit Malfunction Open Circuit
The cellular antenna is connected to the communication interface module (CIM) with a RG-58 coax cable. The CIM polls the data from the cellular antenna once every second.
Circuit/System Testing
Ignition OFF, disconnect the cellular antenna coax from the CIM module and the cellular antenna.
Ignition ON, test for less than 1 volt between the antenna coax center terminal and ground.
? If greater than the specified range, replace the antenna coax.
Ignition ON, test for less than 1 volt between the antenna coax outer shield and ground.
? If greater than the specified range, replace the antenna coax.
Test for infinite resistance between the antenna coax center terminal and ground.
? If less than the specified value, replace the antenna coax
Test for infinite resistance between the antenna coax outer shield and ground.
? If less than the specified value, replace the antenna coax
Test for less than 5 ohms at the cellular antenna coax center terminal from end to end.
? If greater than specified value, replace the cellular antenna coax cable.
Test for less than 5 ohms at the cellular antenna coax outer shield from end to end.
? If greater than specified value, replace the cellular antenna coax cable.
Test for infinite resistance between the antenna coax center terminal and the outer shield.
? If less than specified value, replace the cellular antenna coax cable.
If coax cable tests normal, replace the cellular antenna.
Clear the DTCs and operate the vehicle within the conditions for running the DTC. Verify DTC B2470 does not set.
? If the DTC sets, replace the CIM.

Hi Carl.,

If the antenna motor runs and the antenna does not move out, then there is something wrong inside the antenna unit. Replacing a fuse will not solve the problem. Change the antenna unit.

Good luck.

rod screw type antenna you have to replace whole antenna.just screw out old antenna screw new antenna in place.

first of all, is your radio factory or aftermarket? If its factory the you probably have a bad ground or a short in the radio power to antenna. If its after market, then the remote antenna wire is hooked up wrong. Check to make sure the antenna wire is hooked up to the antenna. Good luck

THE OLDSMOBILE ALERO DONT HAVE A EXTERNAL ANTENNA MAST. THE OLDS ALERO HAVE WIRE GRID ANTENNA INCORPORATED INTO THE DEFOGGER GRID IN THE REAR WINDOW.THE GRID ANTENNA HAVE A REAR WINDOW ANTENNA MODULE MOUNTED BEHIND TOP OF THE REAR SEAT BACK. THE RADIO ANTENNA CABLE GOES TO ANTENNA MODULE LOCATED TOP OF THE REAR SEAT BACK.

Remove old Antenna

1. Activate the antenna switch to the up position.
2. Using the wrench or needle-nose pliers, loosen and remove the original retaining nut on the base of the antenna mast.
   
3. Gain access to the underside of the area of the trunk where the antenna is located.
   
4. Remove the bracket or brace that is below the hole and holding the antenna in place.
   
5. Remove the mast.
   
6. Find the motor that controls the antenna mast. Generally, power antennas will have a constant 12-volt lead and a ground lead. The ground lead will be grounded to the panel next to the motor.
   
7. Remove the ground lead from the panel.
   
8. Pull out the antenna coaxial cable.
   
9. Unplug the coaxial from the extension coaxial cable.
   
10. Remove the original antenna coaxial cable. Note the route the cable follows.
    

Install new Antenna

1. Inspect the fender area where the antenna mast will be mounted for rust.
   
2. Clean the area before installing the new antenna.
   
3. Plug the new antenna coaxial cable to the extension coaxial cable.
   
4. Plug the new antenna's coaxial cable into the radio's chassis antenna jack if there is no extension coaxial cable. Tie or tape the string you put on the extension cable to the new antenna coaxial cable. This assures that the 2 cables stay together as you route them to the antenna mount in the fender.
   
5. Connect the power lead of the antenna to the power antenna lead on the radio.
   
6. Connect the 12-volt constant lead to the antenna to a 12-volt source or to the ignition switch.
   
7. Direct the new antenna cable via the same route followed by the original antenna cable on up to the hole in the fender in which the mast will be mounted.
   
8. Ground the ground lead from the motor to a clean metal surface on the metal panel near the mount.
   
9. Insert the mast into the hole. Face the serrated side of the plastic cable on the bottom of the mast toward the motor side. The plastic cable can be inserted freely to about 12 inches and will stop.
   
10. Turn on antenna switch to down position until the plastic cable goes down and catches into the gear mechanism of the drum housing. If the plastic cable does not gear into the mechanism, twist the cable slightly until the cable contacts into the gear mechanism while the motor is in operation.
    
11. Stop the motor after the cable goes into the housing 12 to 25 inches.
    
12. Secure the bracket or strap to the bottom of the antenna mast and to the metal fender.
    
13. Replace the retainer nut to the base of the antenna mast and secure tightly.
    
14. Replace the panel that covers the antenna mount area.
    

please rate service.

Automatic Electric Antenna
Removal

1. Lower electric antenna (18850) .

1. Remove rear retaining screws of RH front wheel splash shield for access to antenna lower retaining bolt.

1. Remove lower retaining bolt.

1. Remove radio antenna nut (18865) from top of motor tube and remove electric antenna through fender/splash shield access.

1. Disconnect signal cable and motor wire connector(s).

Installation

1. To install, reverse Removal procedure.

1. Tighten top radio antenna nut to 6-8 Nm (54-70 lb-in).

1. Tighten lower electric antenna retaining bolt to 5.8-7.8 Nm (51-69 lb-in).

1. Check operation of electric antenna and radio chassis .
   
   Automatic Electric Antenna
   
   
   

mast
Mast, Power NOTE: A power antenna mast which is bent or broken can be replaced without replacing the motor and tube assembly.
Removal

1. Remove radio antenna nut (18865) and radio antenna stanchion (18919) .
   
   
   
   

1. Loosen retaining nut inside tube using 14 mm (9/16 inch) socket, and slide nut part-way up mast.

1. Raise antenna to run plastic drive wire at bottom of mast out of motor. Note direction of teeth on plastic drive wire.

1. Saw off damaged portion of antenna mast. Remove burrs from mast and slide nut and contact tube off stationary tube.

Installation

1. With the teeth on the plastic drive wire facing toward motor on antenna, push end of plastic drive wire of replacement mast assembly down into tube. Push it around curve at bottom of tube until end enters drive mechanism.

1. Run motor down while pushing on plastic drive wire until about 305 mm (12 inch) of wire has been drawn into the tube. Stop motor and insert bottom of antenna mast into tube. Lower mast.

1. Slide contact tube and radio antenna nut down antenna mast. Tighten nut to 0.45 Nm (4 lb-in).
   
   
2. Raise and lower antenna several times to ensure proper operation.

Give these instructions a shot. Might be too generic but might be enough to get you going. Removing Original Antenna
1. Step 1 Activate the antenna switch to the up position.
   
2. Step 2 Using the wrench or needle-nose pliers, loosen and remove the original retaining nut on the base of the antenna mast.
   
3. Step 3 Gain access to the underside of the area where the antenna is located.
   
4. Step 4 Remove the bracket or brace that is below the hole and holding the antenna in place.
   
5. Step 5 Remove the mast.
   
6. Step 6 Find the motor that controls the antenna mast. Generally, power antennas will have a constant 12-volt lead and a ground lead. The ground lead will be grounded to the panel next to the motor.
   
7. Step 7 Remove the ground lead from the panel.
   
8. Step 8 Pull out the antenna coaxial cable.
   
9. Step 9 Unplug the coaxial from the extension coaxial cable.
   
10. Step 10 Remove the original antenna coaxial cable. Note the route the cable follows.
    Installing the New Power Antenna
11. Step 1 Inspect the fender area where the antenna mast will be mounted for rust.
    
12. Step 2 Clean the area before installing the new antenna.
    
13. Step 3 Plug the new antenna coaxial cable to the extension coaxial cable. (On some General Motors and Ford cars you may need an adapter to mate the 2 cables together. Car audio retail stores sell such an adapter.)
    
14. Step 4 Plug the new antenna's coaxial cable into the radio's chassis antenna jack if there is no extension coaxial cable. Tie or tape the string you put on the extension cable to the new antenna coaxial cable. This assures that the 2 cables stay together as you route them to the antenna mount in the fender.
    
15. Step 5 Connect the power lead of the antenna to the power antenna lead on the radio.
    
16. Step 6 Connect the 12-volt constant lead to the antenna to a 12-volt source or to the ignition switch.
    
17. Step 7 Direct the new antenna cable via the same route followed by the original antenna cable on up to the hole in the fender in which the mast will be mounted.
    
18. Step 8 Ground the ground lead from the motor to a clean metal surface on the metal panel near the mount.
    
19. Step 9 Insert the mast into the hole. Face the serrated side of the plastic cable on the bottom of the mast toward the motor side. The plastic cable can be inserted freely to about 12 inches and will stop.
    
20. Step 10 Turn on antenna switch to down position until the plastic cable goes down and catches into the gear mechanism of the drum housing. If the plastic cable does not gear into the mechanism, twist the cable slightly until the cable contacts into the gear mechanism while the motor is in operation.
    
21. Step 11 Stop the motor after the cable goes into the housing 12 to 25 inches.
    
22. Step 12 Secure the bracket or strap to the bottom of the antenna mast and to the metal fender.
    
23. Step 13 Replace the retainer nut to the base of the antenna mast and secure tightly.
    
24. Step 14 Replace the panel that covers the antenna mount area.
    

There should be a nut at the base of the antenna or in the car right under the antenna. take that off. then there might be two ways to do it. 1. you might have to run new antenna wire to under the dash board. or the antenna will need the adapter right under where the antenna sits.