Question about Connex 3300 240-Channels Base CB Radio

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Changing swrs open and close door changes tried running a ground to different places didn't change

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  • s60six May 11, 2010

    what antennas and coax are you using....what type of vehicle

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If the SWR changes by opening and closing the door, I would suggest to check the grounding, although you have already done this.
However, a slight difference noticeable can be normal.
Is the antenna cable in tact ? Is there corrossion on the base mount ? Is the antenna placed on the vehicle over a magnetic base or fixed to the chassis ? Check the ground connection on the PL259 both sides, the antenna and the rig.
The position of the antenna and it's grounding is also important.

Posted on Jan 01, 2009

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How to diagnose which door is causing the door ajar warning on dic for 08 pontiac g6 4cyl 4dr


It should tell you which one .
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If not a scan tool would be the best way.
Ignition ON, observe the scan tool Driver Door Ajar Sw parameter while opening and closing the driver door. The parameter should change between Door Closed and Door Ajar
? If the parameter does not change, refer to Driver Door Ajar Malfunction.
With the passenger doors closed, observe the scan tool Door Ajar Switch parameter while opening and closing each door. The parameter should change between Door Closed and Door Ajar.
? If the parameter does not change, refer to Passenger Door Ajar Malfunction

Ignition OFF, disconnect the harness connector at the driver door latch.
Test for less than 5 ohms between the ground circuit terminal 8 and ground.
? If greater than the specified range, test the ground circuit for an open/high resistance.
Ignition ON, verify the scan tool Driver Door Ajar Sw parameter is Door Closed.
? If not the specified value, test the signal circuit terminal 6 for a short to ground. If the circuit tests normal, replace the BCM.
Install a 3A fused jumper wire between the signal circuit terminal 6 and the ground circuit terminal 8. Verify the scan tool Driver Door Ajar Sw parameter is Door Ajar.
? If not the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the BCM.
If all circuits test normal, test or replace the driver door latch

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1 Answer

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