Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSMAZDA2006B4000 BASE, AUTOMATICREPAIR AND DIAGNOSISELECTRICALGAUGESTROUBLESHOOTING (INSTRUMENTATION/DRIVER INFORMATION)SMART JUNCTION BOX (SJB) DIAGNOSTIC TROUBLE CODE (DTC) INDEX
2006 Mazda B4000 Base, Automatic
Smart Junction Box (SJB) Diagnostic Trouble Code (DTC) Index
2006 Mazda B4000 Base, AutomaticSECTION Smart Junction Box (SJB) Diagnostic Trouble Code (DTC) Index
SMART JUNCTION BOX DIAGNOSTIC TROUBLE CODE INDEX
| DTC | Description | Source | ACTION |
|---|---|---|---|
| B1322 | Driver Door Ajar Circuit Short to Ground | SJB | See INTERIOR LIGHTING . |
| B1330 | Passenger Door Ajar Circuit Short to Ground | SJB | See INTERIOR LIGHTING . |
| B2901 | Park Brake Switch Input Circuit Failure | SJB | See PINPOINT TEST 16: BRAKE WARNING INDICATOR IS NEVER/ALWAYS ON . |
| All Other DTCs | - | SJB | See MODULE CONTROLLED FUNCTIONS . |
SMART JUNCTION BOX DIAGNOSTIC TROUBLE CODE INDEX
| DTC | Description | Source | ACTION |
|---|---|---|---|
| B1217 | Horn Relay Coil Circuit Failure | SJB | See PINPOINT TEST 3: DTC B1217 - HORN RELAY COIL CIRCUIT FAILURE AND DTC B1218 - HORN RELAY CIRCUIT SHORT TO BATTERY (VEHICLES EQUIPPED WITH REMOTE KEYLESS ENTRY [RKE]) . |
| B1218 | Horn Relay Coil Circuit Short to Battery | SJB | See PINPOINT TEST 3: DTC B1217 - HORN RELAY COIL CIRCUIT FAILURE AND DTC B1218 - HORN RELAY CIRCUIT SHORT TO BATTERY (VEHICLES EQUIPPED WITH REMOTE KEYLESS ENTRY [RKE]) . |
| All Other DTCs | - | SJB | See COMMUNICATIONS NETWORK . |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.