Diagnostic Code Index
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| DTC B1000 | B1000 XX: Electronic Control Unit |
| DTC B1001 | B1001 XX: Option Configuration |
| DTC B101D | B101D XX: ECU Hardware |
| DTC B101E | B101E XX: ECU Software |
| DTC C0550 | C0550 XX: Electronic Control Unit |
| DTC C056D | C056D XX: Electronic Control Unit Hardware |
| DTC C056E | C056E XX: Electronic Control Unit Software |
| DTC C078A | C078A 39: Tire Pressure Indicator Module Internal Malfunction |
| DTC U0001 | U0001 00: High Speed CAN Communication Bus |
| DTC U0002 | U0002: High Speed CAN Bus |
| 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 U0074 | U0074 00: Control Module Communication Bus B Off |
| DTC U0100-U02FF | The serial data circuit is the means by which the control modules in the vehicle communicate with each other. Once the scan tool is connected to the serial data circuit through the data link connector (DLC), the scan tool can be used to monitor each control module for diagnostic purposes and to check for diagnostic trouble codes (DTCs). When the ignition switch is in RUN, each control module communicating on the serial data circuit sends a state of health (SOH) message to ensure that the control module is operating properly. When a control module stops communicating on the serial data circuit, for example if the control module loses power or ground, the SOH message it normally sends on the serial data circuit disappears. Other control modules on the serial data circuit, which expect to receive that SOH message, detect its absence; those control modules in turn set a DTC associated with the loss of SOH of the non-communicating control module. The DTC is unique to the control module which is not communicating and one or more control modules may set the same exact code. A loss of serial data communications DTC does not represent a failure of the control modules that contain the stored code. |
| DTC U0300-U0336 | U0301 00: Software Incompatibility with Engine Control Module U0302 00: Software Incompatibility with Transmission Control Module U0315 00: Software Incompatibility with Electronic Brake Control Module |
| DTC U0400-U05FF | Some control modules are constantly receiving information from other control modules through serial data communication network. The invalid data code will be set when a receiving control module detects a discrepancy in information it receives from another control module causing its integrity to be questioned. The symptom byte listed in the DTC Descriptor is for engineering reference only. No external circuit diagnosis is involved. |
| DTC U1500-U15BF | The serial data is transmitted over a Local Interconnect Network (LIN) single wire network circuit bus between a master control module and other control modules within a particular subsystem. If serial data communication is lost between any of the control modules on the LIN bus network, a no communication code against the non-communicating control module will be set. A master control module is the one that reports the non communication code. Note: a loss of serial data communications DTC does not represent a failure of the master control module that set it. |
| DTC U1814 | U1814 00: Powertrain Wake Up Communication Circuit |
| DTC U18B9-U18BF | U18B9: Primary High Speed CAN Bus Subnet Configuration List U18BF: Secondary High Speed CAN Bus Subnet Configuration List |
| DTC U2099 | U2099 00: High Speed Communication Enable Circuit |
| DTC U2101 | U2101: CAN Bus Maximum Configuration List |
| DTC U2103 | U2103 00: Fewer Controllers On Than Programmed |
| DTC U2105-U2199 | ** DESCRIPTION NOT COLLECTED ** |