MULTIFUNCTION Electronic Modules DTCS
SMART JUNCTION BOX (SJB) DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Action |
|---|---|---|
| B106A | TPMS Sensor Pressure Range Bit Incorrect State | REFER to WHEELS AND TIRES . |
| B106B | Tire Pressure Sensor Low Battery | REFER to WHEELS AND TIRES . |
| B106C | Tire Pressure Monitor System (TPMS) Low Frequency Subsystem Fault | REFER to WHEELS AND TIRES . |
| B106D | Tire Pressure Monitor System (TPMS) Initiators Not Configured | REFER to WHEELS AND TIRES . |
| B106E | Solid State Driver Disabled Due to Short Circuit | GO to PINPOINT TEST A . |
| B106F | Module Disabled Due to External Fault | GO to PINPOINT TEST A . |
| B1138 | Memory Full | REFER to HANDLES, LOCKS, LATCHES AND ENTRY SYSTEMS . |
| B1139 | Invalid Transmitter Identification Code | REFER to HANDLES, LOCKS, LATCHES AND ENTRY SYSTEMS . |
| B1302 | Accessory Delay Relay Coil Circuit Failure | REFER to GLASS, FRAMES AND MECHANISMS . |
| B1304 | Accessory Delay Relay Coil Circuit Short To Battery | REFER to GLASS, FRAMES AND MECHANISMS . |
| B1317 | Battery Voltage High | GO to PINPOINT TEST B . |
| B1318 | Battery Voltage Low | GO to PINPOINT TEST C . |
| B1320 | Driver Door Ajar Circuit Open | REFER to INTERIOR LIGHTING . |
| B1328 | Passenger Door Ajar Circuit Open | REFER to INTERIOR LIGHTING . |
| B1336 | Door Ajar RR Circuit Open | REFER to INTERIOR LIGHTING . |
| B1342 | ECU Is Faulted | DIAGNOSE all other DTCs first. If no other DTCs are present, INSTALL a new SJB. REFER to SMART JUNCTION BOX (SJB) . TEST the system for normal operation. |
| B1352 | Ignition Key-In Circuit Failure | REFER to INSTRUMENTATION, MESSAGE CENTER, AND WARNING CHIMES . |
| B1472 | Lamp Headlamp Input Circuit Short To Ground | REFER to EXTERIOR LIGHTING . |
| B1485 | Brake Pedal Input Short to Battery | REFER to EXTERIOR LIGHTING . |
| B1510 | Flash To Pass Switch Circuit Short To Ground | REFER to EXTERIOR LIGHTING . |
| B1520 | Hood Switch Circuit Open | REFER to ANTI-THEFT - PERIMETER . |
| B1572 | Door Ajar LR Circuit Open | REFER to INTERIOR LIGHTING . |
| B1578 | Lamp Park Input Circuit Short To Ground | REFER to EXTERIOR LIGHTING . |
| B1624 | Lamp Keypad Output Open Circuit | REFER to HANDLES, LOCKS, LATCHES AND ENTRY SYSTEMS . |
| B1626 | Lamp Keypad Output Short Circuit To Ground | REFER to HANDLES, LOCKS, LATCHES AND ENTRY SYSTEMS . |
| B1688 | Lamp Dome Input Circuit Short To Ground | REFER to INTERIOR LIGHTING . |
| B1696 | Autolamp On Circuit Short To Ground | REFER to EXTERIOR LIGHTING . |
| B1791 | Autolamp Sensor Input Circuit Open | REFER to EXTERIOR LIGHTING . |
| B1793 | Autolamp Sensor Input Circuit Short to Ground | REFER to EXTERIOR LIGHTING . |
| B2008 | Wipers On Signal Circuit Short to Ground | REFER to EXTERIOR LIGHTING . |
| B2044 | Left Rear Stop Lamp Circuit Short to Ground | REFER to EXTERIOR LIGHTING . |
| B2045 | Left Rear Stop Lamp Circuit Open | REFER to EXTERIOR LIGHTING . |
| B2046 | Right Rear Stop Lamp Circuit Short to Ground | REFER to EXTERIOR LIGHTING . |
| B2047 | Right Rear Stop Lamp Circuit Open | REFER to EXTERIOR LIGHTING . |
| B2071 | Hazard Switch Signal Short to Ground | REFER to EXTERIOR LIGHTING . |
| B2077 | Liftgate Ajar Sw Circuit Failure | REFER to INTERIOR LIGHTING . |
| B2212 | Panel Dim Switch Out of Range | REFER to INSTRUMENT CLUSTER AND PANEL ILLUMINATION . |
| B2254 | Front Fog Lamp Switch Failure | REFER to EXTERIOR LIGHTING . |
| B2276 | Less Than Two Transmitters Programmed | REFER to HANDLES, LOCKS, LATCHES AND ENTRY SYSTEMS . |
| B2281 | Right Turn Switch Short to Ground | REFER to EXTERIOR LIGHTING . |
| B2282 | Left Turn Switch Short to Ground | REFER to EXTERIOR LIGHTING . |
| B2425 | Remote Keyless Entry Out of Synchronization | REFER to HANDLES, LOCKS, LATCHES AND ENTRY SYSTEMS . |
| B2477 | Module Configuration Failure | CARRY OUT Programmable Module Installation (PMI) on the SJB. REFER to MODULE CONFIGURATION . |
| B2479 | Park Brake Switch Circuit Short to Ground | REFER to INSTRUMENTATION, MESSAGE CENTER, AND WARNING CHIMES . |
| B2498 | Headlamp Switch Multiple Signals Input Active | REFER to EXTERIOR LIGHTING . |
| B2572 | Brake Shift Interlock Output Circuit Failure | REFER to AUTOMATIC TRANSAXLE/TRANSMISSION EXTERNAL CONTROLS . |
| B2666 | Liftgate Release Switch Circuit Failure | REFER to HANDLES, LOCKS, LATCHES AND ENTRY SYSTEMS . |
| B2667 | Liftglass Release Switch Circuit Failure | REFER to HANDLES, LOCKS, LATCHES AND ENTRY SYSTEMS . |
| B273A | Liftgate Release Output Circuit Shorted to Ground | REFER to HANDLES, LOCKS, LATCHES AND ENTRY SYSTEMS . |
| B273B | Liftgate Release Output Circuit Open or Shorted to Battery Voltage | REFER to HANDLES, LOCKS, LATCHES AND ENTRY SYSTEMS . |
| B2794 | 3rd Row Power Fold Circuit Failure | REFER to SEATING . |
| B2844 | Ignition Fault | REFER to STEERING COLUMN SWITCHES . |
| B2868 | Left Front Tire Pressure Sensor Fault | REFER to WHEELS AND TIRES . |
| B2869 | Right Front Tire Pressure Sensor Fault | REFER to WHEELS AND TIRES . |
| B2870 | Right Rear Tire Pressure Sensor Fault | REFER to WHEELS AND TIRES . |
| B2871 | Left Rear Tire Pressure Sensor Fault | REFER to WHEELS AND TIRES . |
| B2872 | Tire Pressure Sensor Fault | REFER to WHEELS AND TIRES . |
| B287A | Tire Pressure System Fault | REFER to WHEELS AND TIRES . |
| B287B | Incorrect Tire Pressure Sensor Installed | REFER to WHEELS AND TIRES . |
| B29B7 | White Lighting Output Circuit Open | REFER to INSTRUMENT CLUSTER AND PANEL ILLUMINATION . |
| B29B8 | White Lighting Output Circuit Short to Ground | REFER to INSTRUMENT CLUSTER AND PANEL ILLUMINATION . |
| B2A20 | Ignition Stuck in START | REFER to STEERING COLUMN SWITCHES . |
| B2A21 | One or More Configuration Files Missing or Corrupt | CARRY OUT Programmable Module Installation (PMI) on the SJB. REFER to MODULE CONFIGURATION . CLEAR the DTCs. REPEAT the self-test. If DTC B2A21 is retrieved again, INSTALL a new SJB. REFER to SMART JUNCTION BOX (SJB) . TEST the system for normal operation. |
| B2A22 | Headlamp OFF Circuit Open | REFER to EXTERIOR LIGHTING . |
| B2A23 | High Beam Input Circuit Short To Ground | REFER to EXTERIOR LIGHTING . |
| B2A24 | Turn Signal Input Circuit Failure | REFER to EXTERIOR LIGHTING . |
| B2A25 | Trim Panel Lock Switch Circuit Failure | REFER to HANDLES, LOCKS, LATCHES AND ENTRY SYSTEMS . |
| B2A26 | Keypad Switch Circuit Failure | REFER to HANDLES, LOCKS, LATCHES AND ENTRY SYSTEMS . |
| B2A27 | Right Front Turn Lamp Circuit Open | REFER to EXTERIOR LIGHTING . |
| B2A28 | Right Front Turn Lamp Circuit Short to Ground | REFER to EXTERIOR LIGHTING . |
| B2A29 | Left Front Turn Lamp Circuit Open | REFER to EXTERIOR LIGHTING . |
| B2A2A | Left Front Turn Lamp Circuit Short to Ground | REFER to EXTERIOR LIGHTING . |
| B2A2D | 3rd Row Power Fold Circuit Short to Ground | REFER to SEATING . |
| B2A2E | Right Front Lamp Low Beam Circuit Open | REFER to EXTERIOR LIGHTING . |
| B2A2F | Right Front Lamp Low Beam Circuit Short to Ground | REFER to EXTERIOR LIGHTING . |
| B2A30 | Left Front Lamp Low Beam Circuit Open | REFER to EXTERIOR LIGHTING . |
| B2A31 | Left Front Lamp Low Beam Circuit Short to Ground | REFER to EXTERIOR LIGHTING . |
| B2A32 | LED Backlighting Output Circuit Open | REFER to INSTRUMENT CLUSTER AND PANEL ILLUMINATION . |
| B2A33 | LED Backlighting Output Circuit Short to Ground | REFER to INSTRUMENT CLUSTER AND PANEL ILLUMINATION . |
| B2A35 | Interior Lighting Output Circuit Open | REFER to INTERIOR LIGHTING . |
| B2A36 | Interior Lighting Output Circuit Short to Ground | REFER to INTERIOR LIGHTING . |
| B2A39 | Puddle Lamp Output Circuit Open | REFER to INTERIOR LIGHTING . |
| B2A3A | Puddle Lamp Output Circuit Short to Ground | REFER to INTERIOR LIGHTING . |
| C1125 | Brake Fluid Level Sensor Input Circuit Failure | REFER to INSTRUMENTATION, MESSAGE CENTER, AND WARNING CHIMES . |
| C2780 | ECU in Manufacturer Sub-State | REFER to WHEELS AND TIRES . |
| P062F | Internal Control Module EEPROM Error | CARRY OUT Programmable Module Installation (PMI). REFER to MODULE CONFIGURATION . CLEAR the DTCs. REPEAT the self-test. If DTC P062F is retrieved again, INSTALL a new SJB. REFER to SMART JUNCTION BOX (SJB) . TEST the system for normal operation. |
| U0155 | Lost Communication With Instrument Panel Cluster (IC) Control Module | GO to PINPOINT TEST D . |
| U2050 | No Application Present | CARRY out PMI for the SJB. REFER to MODULE CONFIGURATION . CLEAR the DTCs. REPEAT the self-test. If DTC U2050 is retrieved again, INSTALL a new SJB. REFER to SMART JUNCTION BOX (SJB) . TEST the system for normal operation. |
| U2472 | Unexpected Ignition State | REFER to STEERING COLUMN SWITCHES . |
| U2473 | Unexpected Vehicle Speed (VSS) |
NOTE:
Sets during the self-test if vehicle speed exceeds 3 mph (5 kph) or vehicle speed cannot be determined by the SJB. VERIFY the speedometer operates correctly. If the speedometer does not operate correctly, REFER to
INSTRUMENTATION, MESSAGE CENTER, AND WARNING CHIMES
. If the speedometer operates correctly, the self-test is carried out while the vehicle is moving. STOP the vehicle and REPEAT the self-test. |