GM Service Manual Online
For 1990-2009 cars only

RTD

Use the scan tool in order to cycle the RTD shock solenoids, leveling compressor, EVO solenoid and SERVICE RIDE CONTROL message On or OFF. The following tests are available under the Special Functions selection:

The following can be commanded ON or OFF.

    • EVO actuator
    • Exhaust
    • Compressor
    • RTD Solenoid LF
    • RTD Solenoid RF
    • RTD Solenoid LR
    • RTD Solenoid RR
    • (RTD) SERVICE RIDE CONTROL Message

BCM

Use the scan tool in order to cycle the EVO actuator. The following tests are available under the Special Functions selection:

EVO actuator