2002 Chevy Tahoe Autoride Compressor Clicks

[rbussard313]

Greetings!

I have a 2002 Chevy Tahoe that I purchased with a functioning LT autoride system. The previous owner had swapped out the rear shocks with Monroe Max Air shocks and cheaply attached resistors to bypass DIC. Eventually, the rear shocks began leaking, causing the compressor to run continuously and eventually burned out. After a couple of years of not working, I replaced the compressor, but I am running into the following issues.

Issues: When I start the vehicle, the system will attempt to run through the check cycle of the auto ride system, but it will just click at the pump and nothing else. So far, I have attempted/noted the following:

1st: I bench tested the compressor, and it turns on, pumping out air.
2nd: I checked all fuses with a multimeter, and they are all fine.
3rd: I verified power to the compressor.
4th: Both resistors are bad and corroded that have been wired in to shut off the DIC message.

I do have a ICARSOFT Diagnostic Tool and receive the following codes:
0585 Left Rear Actuator Circuit
0630 Right Rear Position Sensor

Also, both of the rear shocks are blown.

My question is where should I begin? I want the rear leveling function to operate correctly for towing purposes, but am unable to get the compressor to kick on after I start up the vehicle. Again, it just clicks and nothing more. If it were to operate correctly than I would just buy new shocks and put them on, but I don't want to do that and there also be an issue with the ESC module possibly.

 

[Geotrash]

Greetings!

I have a 2002 Chevy Tahoe that I purchased with a functioning LT autoride system. The previous owner had swapped out the rear shocks with Monroe Max Air shocks and cheaply attached resistors to bypass DIC. Eventually, the rear shocks began leaking, causing the compressor to run continuously and eventually burned out. After a couple of years of not working, I replaced the compressor, but I am running into the following issues.

Issues: When I start the vehicle, the system will attempt to run through the check cycle of the auto ride system, but it will just click at the pump and nothing else. So far, I have attempted/noted the following:

1st: I bench tested the compressor, and it turns on, pumping out air.
2nd: I checked all fuses with a multimeter, and they are all fine.
3rd: I verified power to the compressor.
4th: Both resistors are bad and corroded that have been wired in to shut off the DIC message.

I do have a ICARSOFT Diagnostic Tool and receive the following codes:
0585 Left Rear Actuator Circuit
0630 Right Rear Position Sensor

Also, both of the rear shocks are blown.

My question is where should I begin? I want the rear leveling function to operate correctly for towing purposes, but am unable to get the compressor to kick on after I start up the vehicle. Again, it just clicks and nothing more. If it were to operate correctly than I would just buy new shocks and put them on, but I don't want to do that and there also be an issue with the ESC module possibly.

You’ll get more help if you post in the 2002 section. If you replaced the compressor with a Dorman unit, then that’s normal operation. It won’t kick on during self test. it only kicks on when the height sensors detect sag in the rear suspension.