Diagnostic Aids

WARNING: This page is about a different car, the 2010 Pontiac G5 and 2010 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.

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.