Smart Junction Box (SJB)
DTC INDEX
| 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 . |
| 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 . |
| 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 . |
| B1572 | Door Ajar LR Circuit Open | REFER to INTERIOR LIGHTING . |
| B1578 | Lamp Park Input Circuit Short to Ground | REFER to EXTERIOR LIGHTING . |
| B1685 | Lamp Dome Input Circuit Failure | REFER to INTERIOR LIGHTING . |
| B1688 | Lamp Dome Input Circuit Short to Ground | REFER to INTERIOR 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 . |
| B2048 | Left Rear Turn Lamp Circuit Short To Ground | REFER to EXTERIOR LIGHTING . |
| B2049 | Left Rear Turn Lamp Circuit Open | REFER to EXTERIOR LIGHTING . |
| B2050 | Right Rear Turn Lamp Circuit Short To Ground | REFER to EXTERIOR LIGHTING . |
| B2051 | Right Rear Turn Lamp Circuit Open | REFER to EXTERIOR LIGHTING . |
| B2071 | Hazard Switch Signal Short To Ground | REFER to EXTERIOR LIGHTING . |
| B2212 | Panel Dim Switch Out of Range | REFER to INSTRUMENT CLUSTER AND PANEL ILLUMINATION . |
| B2276 | Less Than 2 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 . |
| 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 . |
| 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 . |
| 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 . |
| 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 . |
| 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 Programmable Module Installation (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. |