Diagnostic Aids

2006 Chevrolet Suburban C2500, 6.0 USECTION Diagnostic Aids
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  • After PAL is installed, it is only possible to communicate with the DRR when the radio is ON and XM band selected.
  • If radio is OFF, or tuned to any other band a NO COMM message for DRR is displayed on Tech2 (Vehicle DTC Check).
  • PAL module maintains a persistent B1000 code that cannot be cleared, and does not affect operation.
  • If PAL module loses power or ground, BCM and Radio set DTCs for loss of communication with DRR.
  • The iPod® interface connector is susceptible to vibration and movement damage. It is recommended that excessive movement of the iPod® and cable be avoided while driving.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.