2. Verify DTCS

With the ignition on.

With the DRB III(R), erase DTCs.

Turn the ignition off, then back on.

Monitor the DRB III(R) for this DTC.

Did the DTC P0600: LOST COMM WITH ELECTRIC GEAR SHIFT MODULE (SLA), set again? 

1. Yes  >> Go To 3
2. No  >> Go To 12