Pontiac Repair: Driver Information Center, 2007 pontiac g5, diagnostic aids

Question
I have purchased a used 2007 Pontiac G5, the cruise control is not working.  The DIC buttons are also not working.  The fuses are okay.  What do you recommend for repairing these buttons on the steering wheel?

Answer
Steering Wheel Controls Malfunction (4-Spoke)
Diagnostic Instructions
   •  Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

   •  Review Strategy Based Diagnosis for an overview of the diagnostic approach.

   •  Diagnostic Procedure Instructions provides an overview of each diagnostic category.

Diagnostic Fault Information
Circuit
Short to Ground
Open/High Resistance
Short to Voltage
Signal Performance

10-Volt Reference
1
1
1
--

Steering Wheel Control Signal
1
1
B3608
--

1. Steering Wheel Controls Inoperative


Circuit/System Description
The radio supplies 10 volts to the audio steering wheel control multiple momentary contact switches, and monitors the return signal. Each switch is associated to a set resistance value, when pressed a specific voltage drop occurs through a series of resistors unique to that switch. The radio will perform the desired function, or send a serial data message to another component.

Diagnostic Aids