Question about 1991 Chevrolet Camaro

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20 amp fuse in ACC slot keeps blowing

20 amp fuse in ACC slot of fuse block blows within 5 seconds of turning the key on and kills entire electrical system. Removed battery and hooked by cables to another car. Same electical problem continues. Got 12vdc to starter, but selenoid won't work with key. This is the 3.1 Liter Camaro RS.

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  • Chevrolet Master
  • 6,826 Answers

ACC slot is the Accessories slot. Perhaps there is a short or overload condition in the vehicle with the cigarette lighter or an add on electronic device.

Try to connect the two posts of the solenoid to see if bypassing the key cylinder works the starter. If it does, then this points to the key switching problem for the starter to the solenoid.

Also, check the neutral/back up safety switch:
Neutral Start/Back-Up Light Switch REPLACEMENT & ADJUSTMENT

  1. Remove the console trim from the console.
  2. Disconnect the electrical connector from the switch.
  3. Remove the 2 attaching screws from the switch and remove the switch. Fig. 1: Neutral start/back-up light switch 20 amp fuse in ACC slot keeps blowing - 85347017.gif

  4. To install a new switch:
    1. Place the switch onto the transmission control shifter and loosely install the attaching screws. Position the transmission control shifter assembly in the N notch in the detent plate.
    2. Assemble the switch to the transmission control shifter assembly by inserting the carrier tang into the hole in the shifter lever.
    3. Install the attaching screws and tighten.
    4. Move the transmission control shifter assembly out of N position. This will shear the switch internal plastic pin.
  5. To install the original switch:
    1. Place the switch onto the transmission control shifter and loosely install the attaching screws. Position the transmission control shifter assembly in the N notch in the detent plate.
    2. Rotate the switch on the shifter assembly to align the service adjustment hole with the carrier tang hole. Insert a 3⁄32 in. (2.38mm) diameter gauge pin to a depth of 9⁄16 in. (15mm) and tighten attaching screws.
    3. Remove the gauge pin.
  6. Connect the electrical connector to the switch.
  7. Install the console trim to the console.

Posted on Jul 04, 2010

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  • Master
  • 630 Answers

Check
the wiring going to the starter, seems as if the wire/wires are grounding out either from a burn possibly from leaning against the exhaust manifold,
or at the solenoid or inside the solenoid itself shorted out.

Posted on Jul 04, 2010

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Moving along...if you have no working transmitter, you have to do the following to get it working again:

* Ensure vehicle audio PIN number is known or audio PIN security system is deactivated prior to battery disconnection.
* Ensure a door is open
* Disconnect the negative battery cable, wait minimum 5 seconds then reconnect
* Within 20 seconds of reconnecting the battery cable, insert the keyin ignition then cycle the ignition key from the "ACC" position to the"ON" position 20 times, leaving the key in the "OFF" position after thetwentieth turn.
* the vehicle's indicators will flash 20 times to indicate successfulentry. NOTE: Should the indicators fail to flash, wait 5 seconds thenquickly turn the ignition switch from the "ACC" to "ON" position 10times, leave the ignition "OFF" after the 10th turn and wait 15 secondsthen recycle the ignition switch 20 times.
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And if you have even 1 transmitter that does work, its not nearly as difficult:

* ensure a door is open
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Within 20 seconds of unlocking, insert key in ignition, turn theignition key from the "ACC" position to the "ON" position 20 times,leaving the key in the "OFF" position after the twentieth turn.

The vehicle's indicators will flash 20 times to indicate successful entry.

Within 10 seconds of the indicators having ceased flashing, press thebutton once on each transmitter. Once finished, turn the ignition keyto the "ON" position to lock in and exit from the programming mode.

Hope this helped,
Jem

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