Instrument cluster control unit
NOTE: If a module or component failure is suspected and the vehicle remains under manufacturer's warranty, refer to the Warranty Guide (Section B1.2) or determine if there is a previously approved special program in effect before replacing the component.
NOTE: Generic scan tools may not be able to read the codes listed or may only be able to read 5-digit codes. Match the 5 digits from the scan tool with the first 5 digits of the listed 7-digit code to identify the fault (the last 2 digits provide additional information readable by the manufacturer-approved diagnostic system).
NOTE: When performing voltage or resistance tests, always use a digital multimeter (DMM) with three decimal places of accuracy and a valid calibration certificate. When testing resistance, be sure to include the resistance of the DMM leads.
NOTE: Before starting diagnostic programs using fault location tests, check and correct basic faults.
NOTE: Inspect the connectors for signs of water ingress and their pins for damage and/or corrosion.
NOTE: If DTCs are set and the fault is not present after performing the troubleshooting tests, an intermittent problem may be the cause. Be sure to check for loose connections and corroded terminals.
Description and operation
A detailed description of the instrument cluster system is contained in the relevant section "Description and Operation" in the repair manual. For additional information, refer to the chapter: Instrument cluster (413-01 Instrument cluster, Description and operating principle).
| DTC | Description | Possible reason | Action |
| B1184-62 | Steering column lock output | Signal matching error | Check the power supply to the steering column lock from the CJB. Check the CJB for DTCs and refer to the appropriate DTC index. For additional information, refer to the chapter: Communication Network (418-00 Module Communication Network, Diagnostics and Tests). |
| B1A14-96 | Restraint Control Module (RCM) indicator | LED malfunction | Install a new instrument cluster. For additional information, refer to the chapter: Instrument Cluster (413-01 Instrument Cluster, Removal and Installation). Refer to the note on installing a new module/component at the beginning of the DTC index. |
| B1A84-41 | Vehicle configuration data | Checksum error while loading data from flash memory | Install the latest available software version using the manufacturer's approved diagnostic system |
| B1A84-81 | Vehicle configuration data | Invalid vehicle configuration data received | Check/correct the vehicle configuration file using the manufacturer approved diagnostic system. |
| C2002-62 | Unauthorized change of odometer readings | A DTC is set when one or more odometer readings do not match | Clear the DTCs, cycle the ignition and retest |
| U0010-87 | Medium speed CAN communication bus | Multiple CAN data losses for other systems | Perform the troubleshooting tests associated with this DTC using the manufacturer approved diagnostic system |
| U0010-88 | Medium speed CAN communication bus | Bus connection failure | Perform the troubleshooting tests associated with this DTC using the manufacturer approved diagnostic system |
| U0140-08 | Lost communication with the body control unit | No messages are received from the central distribution box for a period exceeding the timeout period | Perform the troubleshooting tests associated with this DTC using the manufacturer approved diagnostic system |
| U0208-08 | Lost communication with "seat control unit A" | No messages have been received from the driver seat module for a period exceeding the timeout period | Check the DSM for DTCs and refer to the appropriate DTC index. For additional information, refer to the chapter: Seats (501-10 Seat, Diagnosis and Testing). Perform CAN network integrity tests using the manufacturer approved diagnostic system. |
| U0300-62 | Internal control unit software incompatibility | The received configuration data differs from the saved data | Make sure the correct instrument cluster is installed |
| U3000-46 | Control unit | EEPROM write error | Check the instrument cluster power and ground circuits, clear the DTCs and retest. If the DTC is still set, install a new instrument cluster. For additional information, refer to the chapter: Instrument Cluster (413-01 Instrument Cluster, Removal and Installation). Refer to the note on installing a new module/component at the beginning of the DTC index. |
| U3000-48 | Control unit | An internal software error has been detected | Check the instrument cluster power and ground circuits, clear the DTCs and retest. If the DTC is still set, install a new instrument cluster. For additional information, refer to the chapter: Instrument Cluster (413-01 Instrument Cluster, Removal and Installation). Refer to the note on installing a new module/component at the beginning of the DTC index. |
| U3000-4B | Control unit | Internal overheating | Check for additional DTCs and refer to the code index, clear the DTCs and retest/monitor to see if the condition reoccurs |
| U3003-17 | Battery voltage | Circuit voltage is above limit | Perform the troubleshooting tests associated with this DTC using the manufacturer approved diagnostic system |
The article was copied from the website: LRman.ru
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