Infotainment Control Unit (High Level)
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.
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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
For a detailed description of the operation of the infotainment system, refer to the relevant section "Description and operation" of the workshop manual. For additional information, refer to the chapter: Audio system (415-01 Infotainment system, Description and operation).
| DTC | Description | Possible reason | Action |
| B101C-11 | Search button in ascending order | Search Up Switch Circuit: Short to Ground | Using the electrical diagrams, check the seek up switch circuit for a short to ground |
| B101D-11 | Search button in descending order | Down Range Search Switch Circuit: Short to Ground | Using the electrical diagrams, check the seek down switch circuit for a short to ground |
| B101F-11 | Eject switch | Disc Eject Button Circuit: Short to Ground | Using the electrical diagrams, check the disc eject switch circuit for a short to ground |
| B1022-11 | Audio system on/off switch | Audio On/Off Button Circuit: Short to Ground | Using the electrical diagrams, check the audio power on/off button circuit for a short to ground |
| B104A-11 | Button 1 | Button 1 circuit: short to ground | Using the electrical diagrams, check the button 1 circuit for a short to ground |
| B104B-11 | Button 2 | Button 2 circuit: short to ground | Using the electrical diagrams, check the button 2 circuit for a short to ground |
| B104C-11 | Button 3 | Button 3 circuit: short circuit to ground | Using the electrical diagrams, check the button 3 circuit for a short to ground |
| B104D-11 | Button 4 | Button 4 circuit: short circuit to ground | Using the electrical diagrams, check the button 4 circuit for a short to ground |
| B104E-11 | Button 5 | Button 5 circuit: short circuit to ground | Using the electrical diagrams, check the button 5 circuit for a short to ground |
| B11A6-11 | FM button | FM button circuit: short to ground | Using the electrical diagrams, check the FM button circuit for a short to ground |
| B11A7-11 | AM button | AM Button Circuit: Short to Ground | Using the electrical diagrams, check the AM button circuit for a short to ground |
| B11A8-11 | CD button | CD Button Circuit: Short to Ground | Using the electrical diagrams, check the CD button circuit for a short to ground |
| B11A911 | Tone button | Tone button circuit: short to ground | Using the electrical diagrams, check the tone button circuit for a short to ground |
| B11AA-11 | Skip button when scanning up | Skip button circuit when searching up: short circuit to ground | Using the electrical diagrams, check the up skip button circuit for a short to ground |
| B11AB-11 | Skip button when scanning down | Skip button circuit when searching down: short to ground | Using the electrical diagrams, check the down skip button circuit for a short to ground |
| B11AC-11 | Enter button | Enter button circuit: short circuit to ground | Using the electrical diagrams, check the entry button circuit for a short to ground |
| B11AD-11 | Exit button | Exit Button Circuit: Short to Ground | Using the electrical diagrams, check the exit button circuit for a short to ground |
| B11AE-11 | Menu button | Menu button circuit: short to ground | Using the electrical diagrams, check the menu button circuit for a short to ground |
| B11AF-11 | Telephone button | Telephone button circuit: short to ground | Using the electrical diagrams, check the telephone button circuit for a short to ground |
| B11B0-11 | Scan button | Scan Button Circuit: Short to Ground | Using the electrical diagrams, check the scan button circuit for a short to ground |
| B11B1-11 | Automatic mode button | Automatic mode button circuit: short circuit to ground | Using the electrical diagrams, check the automatic mode button circuit for a short to ground |
| B11B3-11 | Button 6 | Button 6 circuit: short circuit to ground | Using the electrical diagrams, check the button 6 circuit for a short to ground |
| B11B4-11 | Button 7 | Button 7 circuit: short circuit to ground | Using the electrical diagrams, check the button 7 circuit for a short to ground |
| B11B5-11 | Button 8 | Button 8 circuit: short circuit to ground | Using the electrical diagrams, check the button 8 circuit for a short to ground |
| B11B6-11 | Button 9 | Button 9 circuit: short circuit to ground | Using the electrical diagrams, check the button 9 circuit for a short to ground |
| B1A59-49 | Sensor power supply 5V | Internal failure of electronic equipment | Install a new infotainment module, see the new module/component installation note at the beginning of the DTC index |
| B1D21-15 | Remote control switch | Remote control circuit: short circuit to power supply, open circuit | Using the electrical diagrams, check the remote control switch circuit for a short to power and an open. |
| U0010-00 | Medium speed CAN bus | Bus shutdown | Perform the troubleshooting tests associated with this DTC using the manufacturer approved diagnostic system |
| U0127-00 | Lost Communication with Tire Pressure Monitoring System Module | Lost connection | Perform integrity tests on the CAN network using the manufacturer approved diagnostic system. 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). |
| U0140-00 | Lost contact with CJB | Lost connection | Perform integrity tests on the CAN network using the manufacturer approved diagnostic system. 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). |
| U0142-00 | Lost Communication With Body Control Module 'B' | Lost connection | Perform integrity tests on the CAN network using the manufacturer approved diagnostic system. 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). |
| U0155-00 | Lost connection with instrument panel | Lost connection | Perform CAN network integrity tests using the manufacturer approved diagnostic system. Check the instrument cluster for DTCs and refer to the DTC index for their meaning. For additional information, refer to the chapter: Instrument Cluster (413-01 Instrument Cluster, Diagnostics and Tests). |
| U0159-00 | Lost communication with parking assistance control unit A | Lost connection | Perform integrity tests on the CAN network using the manufacturer approved diagnostic system. Check the parking assist unit for DTCs and refer to the appropriate DTC index. For additional information, refer to the chapter: Parking Assistance (413-13 Parking Assistance, Diagnosis and Testing). |
| U0164-00 | Lost communication with the climate control system control unit | Lost connection | Perform CAN network integrity tests using the manufacturer approved diagnostic system. Check the climate control module for DTCs and refer to the appropriate DTC index. For additional information, refer to: Climate Control System (412-00 Climate Control System - General Information, Diagnosis and Testing). |
| U0184-00 | Lost connection with radio receiver | Lost connection | Perform the troubleshooting tests associated with this DTC using the manufacturer approved diagnostic system |
| U0186-00 | Lost Communication with Audio System A Amplifier | Lost connection | Perform the troubleshooting tests associated with this DTC using the manufacturer approved diagnostic system |
| U0193-00 | Lost Communication With Digital Audio Control Module A | Lost connection | Perform the troubleshooting tests associated with this DTC using the manufacturer approved diagnostic system |
| U0197-00 | Lost connection with the telephone control module | Lost connection | Perform the troubleshooting tests associated with this DTC using the manufacturer approved diagnostic system |
| U0199-00 | Lost connection with DDM | Lost connection | Perform MOST network integrity tests using the manufacturer approved diagnostic system. Check the DDM for DTCs and refer to the appropriate DTC index below |
| U0200-00 | Lost connection with PDM | Lost connection | Perform MOST network integrity tests using the manufacturer approved diagnostic system. Check the PDM for DTCs and refer to the appropriate DTC index below |
| U0214-00 | Lost connection with remote function activation drive | Lost connection | Perform CAN network integrity tests using the manufacturer approved diagnostic system. Check the remote keyless entry module for DTCs and refer to the appropriate DTC index below |
| U0245-00 | Lost Communication With Front Entertainment Control Module | Lost connection | Perform MOST network integrity tests Go to PINPOINT TEST??.. Check for additional DTCs and refer to the appropriate DTC index |
| U0256-00 | Lost Communication with Front Control Interface Module | Lost connection | Perform MOST network integrity tests. Go to PINPOINT TEST. Check for additional DTCs and refer to the appropriate DTC index |
| U0257-00 | Lost Communication with Front Control/Display Interface Module | Lost connection | Perform MOST network integrity tests Go to PINPOINT TEST Check for additional DTCs and refer to the appropriate DTC index |
| U0300-00 | Internal control unit software incompatibility | Incorrect software | Make sure the software and hardware versions match |
| U0300-51 | Internal control unit software incompatibility | Not programmed | Download the correct software version using the manufacturer approved diagnostic system |
| U3000-55 | Control unit | Incorrect vehicle configuration data received | Check/update the vehicle configuration file using a manufacturer approved diagnostic system |
| U3000-87 | Control unit | Missing message | Check the central junction box for DTCs and refer to the DTC index. For additional information, refer to the chapter: Communication Network (418-00 Module Communication Network, Diagnosis and Tests). Check the infotainment module for DTCs for the vehicle configuration file and the MOST network and refer to the appropriate DTC index. Perform MOST/CAN network tests using the manufacturer approved diagnostic system |
| U3002-81 | Vehicle Identification Number | Incorrect VIN saved and blocked (module was previously installed on another vehicle) | Make sure the correct type of component is installed on the vehicle |
| U3003-62 | Battery voltage | Battery voltage mismatch of 2 volts or more between infotainment control module and central junction box | Perform the troubleshooting tests associated with this DTC using the manufacturer approved diagnostic system |
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