Silverado 2008

5.3L V8 VIN J Auto 26

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Trouble Code: U0194 00



Lost Communication With Digital Radio Receiver (DRR)

Possible Causes:



A supervised periodic message that includes the transmitter module availability has not been received.
 

Trouble Code: U0198 00



Lost Communication With Telematic Control Module

Possible Causes:



A supervised periodic message that includes the transmitter module availability has not been received.
 

Trouble Code: U0199 00



Lost Communication With Driver Door Control Module

Possible Causes:



A supervised periodic message that includes the transmitter module availability has not been received.
 

Trouble Code: U0200 00



Lost Communication With Passenger Door Control Module

Possible Causes:



A supervised periodic message that includes the transmitter module availability has not been received.
 

Trouble Code: U0208 00



Lost Communication With Seat Control Module A (DSM/MSM)

Possible Causes:



A supervised periodic message that includes the transmitter module availability has not been received.
 

Trouble Code: U0209 00



Lost Communication With Seat Control Module B (HVSM)

Possible Causes:



A supervised periodic message that includes the transmitter module availability has not been received.
 

Trouble Code: U0210 00



Lost Communication With Seat Control Module C (RHVSM)

Possible Causes:



A supervised periodic message that includes the transmitter module availability has not been received.
 

Trouble Code: U0214 00



Lost Communication With Remote Function Actuation

Possible Causes:



A supervised periodic message that includes the transmitter module availability has not been received.
 

Trouble Code: U0230 00



Lost Communication With Rear Gate Module

Possible Causes:



A supervised periodic message that includes the transmitter module availability has not been received.
 

Trouble Code: U0232 00



Lost Communications With Side Object Detection (SOD) Module - Left

Possible Causes:



A supervised periodic message that includes the transmitter module availability has not been received.
 

Trouble Code: U0233 00



Lost Communications With Side Object Detection (SOD) Module - Right

Possible Causes:



A supervised periodic message that includes the transmitter module availability has not been received.
 

Trouble Code: U0236 00



Lost Communications With Column Locking Module (CLM)

Possible Causes:



A supervised periodic message that includes the transmitter module availability has not been received.
 

Trouble Code: U0241 00



Lost Communication With Headlamp Control Module A

Possible Causes:



A supervised periodic message that includes the transmitter module availability has not been received.
 

Trouble Code: U0249 00



Lost Communication With Entertainment Control Module - Rear B

Possible Causes:



A supervised periodic message that includes the transmitter module availability has not been received.
 

Trouble Code: U0255 00



Lost Communication With Front Display Interface Module

Possible Causes:



A supervised periodic message that includes the transmitter module availability has not been received.
 

Trouble Code: U0256 00



Lost Communication With Front Controls Interface Module

Possible Causes:



A supervised periodic message that includes the transmitter module availability has not been received.
 

Trouble Code: U0257 00



Lost Communication With Front Controls/Display Interface Module

Possible Causes:



A supervised periodic message that includes the transmitter module availability has not been received.
 

Trouble Code: U0291 00



Lost Communication With Television

Possible Causes:



A supervised periodic message that includes the transmitter module availability has not been received.
 

Trouble Code: U1000



Class 2 Communication Malfunction

Possible Causes:



Class 2 circuit is open, shorted to ground or shorted to power
 
ECM ignition power circuit(s) has a high resistance condition
 
ECM main ground circuit(s) has a high resistance condition
 
SDM (module) could be shorted pulling the voltage low
 

Trouble Code: U1016



No Communication With Powertrain Control Module

Possible Causes:



ECM Class 2 circuit is open, shorted to ground or to B+
 
ECM ignition power circuit(s) has a high resistance condition
 
ECM main ground circuit(s) has a high resistance condition
 
ECM (module) may have failed and is pulling the circuit low
 

Trouble Code: U1026



Loss of ATC Class 2 Communication

Possible Causes:



Check for a loose connection at the ATC module
 
Test the main power and ground circuits to the ATC module
 
Check the Class 2 serial data circuit to the ATC module
 
ATC module may have failed
 

Trouble Code: U1041



Loss of Electronic Brake Controller Communication

Possible Causes:



Check for a loose connection at the EBCM (module)
 
Test the main power and ground circuits to the EBCM (module)
 
Check the Class 2 serial data circuit to the EBCM (module)
 
EBCM (module) may have failed
 

Trouble Code: U1064



No Communication With Body Control Module

Possible Causes:



BCM Class 2 circuit is open, shorted to ground or to B+
 
BCM ignition power circuit has a high resistance condition
 
BCM main ground circuit(s) has a high resistance condition
 
BCM (module) may have failed and is pulling the circuit low
 

Trouble Code: U1088



No Communication With SDM (Restraint Module)

Possible Causes:



SDM Class 2 circuit is open, shorted to ground or to B+
 
SDM ignition power circuit has a high resistance condition
 
SDM main ground circuit(s) has a high resistance condition
 
SDM (module) may have failed and is pulling the circuit low
 

Trouble Code: U1092



Loss of VTD (Pass Lock) Communication

Possible Causes:



Check for a loose connection at the VTD module
 
Test the main power and ground circuits to the VTD module
 
Check the Class 2 serial data circuit to the VTD module
 
VTD module may have failed
 

Trouble Code: U1096



No Communication With Instrument Panel Cluster

Possible Causes:



IPC Class 2 circuit is open, shorted to ground or to B+
 
IPC ignition power circuit has a high resistance condition
 
IPC main ground circuit(s) has a high resistance condition
 
IPC (module) may have failed and is pulling the circuit low
 

Trouble Code: U1097



No Communication With Driver Information Center

Possible Causes:



DIC Class 2 circuit is open, shorted to ground or to B+
 
DIC ignition power circuit has a high resistance condition
 
DIC main ground circuit(s) has a high resistance condition
 
DIC (module) may have failed and is pulling the circuit low
 

Trouble Code: U1151



No Communication With Vehicle Interface Unit

Possible Causes:



VIU Class 2 circuit is open, shorted to ground or to B+
 
VIU ignition power circuit has a high resistance condition
 
VIU main ground circuit(s) has a high resistance condition
 
VIU (module) may have failed and is pulling the circuit low
 

Trouble Code: U1152



No Communication With HVAC Control Module

Possible Causes:



HVAC Class 2 circuit is open, shorted to ground or to B+
 
HVAC ignition power circuit has a high resistance condition
 
HVAC main ground circuit(s) has a high resistance condition
 
HVAC (module) may have failed and is pulling the circuit low
 

Trouble Code: U1193



Loss of Vehicle Immobilizer Module Communications

Possible Causes:



Test the main power and ground circuits to the VIM module for a loose connection
 
Check the Class 2 serial data circuit to the VIM module
 
VTD module may have failed
 

Trouble Code: U1255



Class 2 Communications Malfunction

Possible Causes:



Class 2 circuit is open, shorted to ground or shorted to power
 
ECM ignition power circuit(s) has a high resistance condition
 
ECM main ground circuit(s) has a high resistance condition
 

Trouble Code: U1300



Class 2 Circuit Short to Ground

Possible Causes:



Class 2 serial data line was in a low state for 3 seconds due to a short to sensor ground or chassis ground
 
One or more modules on the Class 2 line has a short to ground
 

Trouble Code: U1301



Class 2 Circuit Short to Battery

Possible Causes:



Class 2 serial data line was in a high state for 3 seconds due to a short to VREF or system power
 
One or more modules on Class 2 line has an short to power
 

Trouble Code: U1305



Class 2 Data Link High or Low

Possible Causes:



Class 2 serial data line has either a high or low voltage condition on the circuit, and the module cannot identify the fault
 
One or more modules on Class 2 line has an short to power
 
One or more modules on the Class 2 line has a short to ground
 

Trouble Code: U2099 00



High Speed Communication Enable Circuit

Possible Causes:



The BCM senses a short to ground or an open/high resistance on the high speed GMLAN serial data wake up circuit.
 

Trouble Code: U2100 00



Controller Area Network (CAN) Bus Communication

Possible Causes:



The module setting the DTC has attempted to establish communications on the GMLAN circuits for more than 7 times.
 

Trouble Code: U2100 00



Controller Area Network (CAN) Bus Communication

Possible Causes:



The control module setting the DTC has attempted to establish communications on the serial data circuits more than 3 times in 5 seconds.
 

Trouble Code: U2100 47



Controller Area Network (CAN) Bus Communication

Possible Causes:



The control module setting the DTC has attempted to establish communications on the serial data circuits more than 3 times in 5 seconds.
 

Trouble Code: U2103 00



Fewer Controllers On Than Programmed

Possible Causes:



A supervised periodic message that includes the transmitter module availability has not been received.
 

 
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