Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G3500, VAN PASSENGER EXTENDEDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 187 (DATA COMMUNICATION SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESDIAGNOSTIC CODE INDEX
2008 Chevrolet Chevy Express G3500, Van Passenger Extended
Diagnostic Code Index
2008 Chevrolet Chevy Express G3500, Van Passenger ExtendedSECTION Diagnostic Code Index
WARNING: This page is about a different car, the 2008 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| DTC B1000 | B1000 00: Engine Control Unit Performance - No Additional Information B1000 31: Engine Control Unit Performance - General Checksum Error B1000 57: Engine Control Unit Performance - Expected Reaction After Event Did Not Occur |
| DTC B1004 | B1004: Keep Alive Memory (KAM) Reset |
| DTC B1009 | B1009: EEPROM Checksum Mismatch |
| DTC U0002 | U0002: Fewer Controllers On than Programmed |
| DTC U0073 or U2100 | U0073: Controller Area Network (CAN) Bus Communication U2100: Controller Area Network (CAN) Bus Communication |
| DTC U0100-U0299 or U2105-U2199 | U0100 00: Lost Communication With Engine/Powertrain Control Module (ECM/PCM) U0101 00: Lost Communication With Transmission Control Module (TCM) U0104 00: Lost Communication With Cruise Control Module U0121 00: Lost Communication With Electronic Brake Control Module (EBCM) U0122 00: Lost Communication With Vehicle Dynamics Control Module U0132 00: Lost Communication With Ride Level Control Module U0140 00: Lost Communication With Body Control Module (BCM) U0151 00: Lost Communication With Sensing and Diagnostic Module (SDM) U0155 00: Lost Communication With Instrument Panel Cluster (IPC) Control Module U0184 00: Lost Communication With Radio U0199 00: Lost Communication With Door control Module A U0200 00: Lost Communication With Door control Module B U2105 00: Lost Communication With Engine Control Module (ECM) U2106 00: Lost Communication With Transmission Control Module (TCM) U2107 00: Lost Communication With Body Control Module (BCM) U2108 00: Lost Communication With Electronic Brake Control Module (EBCM) U2112 00: Lost Communication With Electronic Suspension Control (ESC) Module U2113 00: Lost Communication With Sensing and Diagnostic Module (SDM) U2116 00: Lost Communication With Instrument Panel Cluster (IPC) U2118 00: Lost Communication With Head Up Display (HUD) U2120 00: Lost Communication With Dynamic Headlamp Leveling (DHL) Device U2122 00: Lost Communication With Radio U2124 00: Lost Communication With Audio Amplifier U2125 00: Lost Communication With Communication Interface Module (OnStar) U2127 00: Lost Communication With HVAC U2130 00: Lost Communication With Driver Door Module (DDM) U2132 00: Lost Communication With Passenger Door Module (PDM) U2135 00: Lost Communication With Rear Integration Module (RIM) U2138 00: Lost Communication With Steering Column Lock Control Module (SCLCM) U2144 00: Lost Communication With Distance Sensing Cruise Control (DSCC) Module U2162 00: Lost Communication With Instrument Panel Integration Module (IPM) U2163 00: Lost Communication With Left Rear Door Module (LRDM) U2164 00: Lost Communication With Right Rear Door Module (RRDM) U2165 00: Lost Communication With Driver Door Switch (DDS) U2166 00: Lost Communication With Driver Position Module (DPM) U2167 00: Lost Communication With Remote Control Door Lock Receiver (RCDLR) U2172 00: Lost Communication With Digital Radio Receiver (DRR) U2179 00: Lost Communication With Television Module |
| DTC U2102 or U2103 | U02102 00: Fewer Controllers On Than Programmed U02103 00: Fewer Controllers On Than Programmed |
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.