Diagnostic Code Index

WARNING: This page is about a different car, the 2008 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.

DIAGNOSTIC CODE INDEX

DTC	Description
DTC B1025, B1035, B1045, or B1055	When the radio is powered up, the radio supplies low level audio signals to the speakers. If the vehicle is equipped with an audio amplifier, the amplifier will boost the signal sent to the speakers.
DTC B1259	The digital radio antenna is connected to the digital radio receiver by 1 coax cable. This cable carries the satellite and the terrestrial signal. The antenna cable also provides a path for D.C. current for powering the antenna.
DTC B2455	The vehicle communication interface module (VCIM) detects that the cellular microphone is connected through the cellular microphone signal circuit and the drain wire.
DTC B2470	The cellular antenna is connected to the vehicle communication interface module (VCIM) with an RG-58 coax cable. The VCIM polls the data from the cellular antenna once every second.
DTC B2476	The OnStar® button assembly consists of 3 buttons: Call/Answer, OnStar® Call Center and OnStar® Emergency. Ten volts is supplied to the button assembly on the keypad supply voltage circuit. Each of the buttons, when pressed, completes the circuit across a resister allowing a specific voltage to be returned to the vehicle communication interface module (VCIM) on the keypad signal circuit. Depending upon the voltage range returned, the VCIM is able to identify which button has been pressed.
DTC B2482	The OnStar® button assembly consists of 3 buttons: Call/Answer, OnStar® Call Center and OnStar® Emergency. Ten volts is supplied to the button assembly on the keypad supply voltage circuit. Each of the buttons, when pressed, completes the circuit across a resister allowing a specific voltage to be returned to the vehicle communication interface module (VCIM) on the keypad signal circuit. Depending upon the voltage range returned, the VCIM is able to identify which button has been pressed.
DTC B2483 or B2484	The navigation antenna is connected to the vehicle communication interface module (VCIM) with an RG-174 coax cable. The VCIM polls the data from the navigation antenna once every second.
DTC U1500	This DTC indicates an internal fault and is set within the vehicle communication interface module (VCIM). No external circuits are involved.