Vehicle: 2009 GMC Sierra 1500 SLE 5.3L, V8, MFI, OHV, VIN 0, Eng Desg LMG

Customer Concern

The battery was jump-started with the key on, which resulted in a no-crank, no-start condition. Theft deterrent module (TDM) DTC B3060 is present. The module will perform the ­relearn, work properly three times, then go back into the ­failure mode.

Tests:

1. Verify battery voltage on the red/white wire at pin 1.

2. Verify switch voltage on the yellow wire at pin 2.

3. Verify a good ground on the black/white wire at pin 3.

4. Verify communications on the dark green wire at pin 4.

5. If OK, replace and program the TDM.

 

Courtesy of Identifix’s “Five Fast Fixes”