LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Pontiac >> 2009 >> G8 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 54 (Data Communication System) >> Diagnostic Information and Procedures >> Diagnostic Code Index
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Diagnostic Code Index

WARNING: This page is about a different car, the 2008 Pontiac G8. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC CODE INDEX

DTC Description
DTC B1000  B1000 33: Electronic Control Unit (ECU) Performance Special Memory Failure
B1000 34: Electronic Control Unit (ECU) Performance RAM Integrity
B1000 35: Electronic Control Unit (ECU) Performance ROM Integrity
B1000 36: Electronic Control Unit (ECU) Performance EEPROM Integrity
B1000 39: Electronic Control Unit (ECU) Performance Internal Electronic Failure
DTC B1001  B1001 4B: Option Configuration Error Calibration not Learned
B1001 45: Option Configuration Error Variant Not Programmed
DTC B1016  The body control module (BCM) performs a self test and vehicle identification number (VIN) verification. This DTC indicates that a VIN is not programmed or that the BCM has an internal fault. The internal fault detection is handled inside the control module, no external circuits are involved.
DTC C0550  C0550: ECU Malfunction
DTC U0020  U0020 00: Low Speed CAN Communication Bus Performance
DTC U0073 or U2100  U0073 00: Control Module Communication Bus Off
U0073 71: ECU HS Bus Off
U0073 72: ECU LS Bus Off
U2100 00: Controller Area Network (CAN) Bus Communication
U2100 47: Controller Area Network (CAN) Bus Communication
DTC U0100-U0299  U0100 00: Lost Communication With ECM/PCM
U0100 75: Lost Communication With ECM/PCM
U0100 7F: Lost Communication With ECM/PCM
U0101 00: Lost Communication With TCM
U0102 00: Lost Communication With Transfer Case Control Module
U0104 00: Lost Communication With Cruise Control Module
U0104 7F: Lost Communication With Cruise Control Module
U0106 00: Lost Communication With Glow Plug Control Module
U0109 00: Lost Communication With Fuel Pump Control Module
U0117 00: Lost Communication With Electrical PTO Control Module
U0121 00: Lost Communication With Anti-Lock Brake System (ABS) Control Module
U0122 00: Lost Communication With Vehicle Dynamics Control Module
U0131 00: Lost Communication With Power Steering Control Module
U0132 00: Lost Communication With Ride Level Control Module
U0134 00: Lost Communication With Power Steering Control Module - Rear
U0136 00: Lost Communication With Differential Control Module - Rear
U0137 00: Lost Communication With Trailer Brake Control Module
U0140 00: Lost Communication With Body Control Module
U0141 00: Lost Communication With Body Control Module A
U0151 00: Lost Communication With Restraints Control Module
U0151 71: Lost Communication With Restraints Control Module Invalid Serial Data Received
U0151 7F: Lost Communication With Restraints Control Module Erratic
U0155 00: Lost Communication With Instrument Panel Cluster (IPC) Control Module
U0156 00: Lost Communication With Information Center A (DIC)
U0158 00: Lost Communication With Head Up Display
U0159 00: Lost Communication With Parking Assist Control Module
U0160 00: Lost Communication With Audible Alert Control Module
U0164 00: Lost Communication With HVAC Control Module
U0165 00: Lost Communication With HVAC Control Module - Rear
U0168 00: Lost Communication With Vehicle Security Control Module
U0170 00: Lost Communication With Restraints System Sensor A (PPS)
U0172 00: Lost Communication With Rollover Sensor
U0184 00: Lost Communication With Radio
U0186 00: Lost Communication With Audio Amplifier
U0291 00: Lost Communication With Television
U0194 00: Lost Communication With Digital Radio Receiver (DRR)
U0198 00: Lost Communication With Telematic Control Module
U0199 00: Lost Communication With Door Control Module A (DDM)
U0200 00: Lost Communication With Door Control Module B (PDM)
U0208 00: Lost Communication With Seat Control Module A (DSM/MSM)
U0209 00: Lost Communication With Seat Control Module B (HVSM)
U0210 00: Lost Communication With Seat Control Module C (RHVSM)
U0214 00: Lost Communication With Remote Function Actuation
U0230 00: Lost Communication With Rear Gate Module
U0232 00: Lost Communications With Side Object Detection (SOD) Module - Left
U0233 00: Lost Communications With Side Object Detection (SOD) Module - Right
U0236 00: Lost Communications With Column Locking Module (CLM)
U0241 00: Lost Communication With Headlamp Control Module A
U0249 00: Lost Communication With Entertainment Control Module - Rear B
U0255 00: Lost Communication With Front Display Interface Module
U0256 00: Lost Communication With Front Controls Interface Module
U0257 00: Lost Communication With Front Controls/Display Interface Module
DTC U1814  U1814 00: Powertrain High Speed Communication Enable Circuit
DTC U2099  U2099 00: High Speed Communication Enable Circuit