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)INSTRUMENT CLUSTER DIAGNOSTIC TROUBLE CODE (DTC) INDEX
2006 Mazda B4000 Base, Automatic
Instrument Cluster Diagnostic Trouble Code (DTC) Index
2006 Mazda B4000 Base, AutomaticSECTION Instrument Cluster Diagnostic Trouble Code (DTC) Index
INSTRUMENT CLUSTER DIAGNOSTIC TROUBLE CODE INDEX
| DTC | Description | Source | ACTION |
|---|---|---|---|
| B1202 | Fuel Sender Circuit Open | Instrument Cluster | See PINPOINT TEST 21: INCORRECT FUEL GAUGE INDICATION . |
| B1204 | Fuel Sender Circuit Short to Ground | Instrument Cluster | See PINPOINT TEST 21: INCORRECT FUEL GAUGE INDICATION |
| B1317 | Battery Voltage High | Instrument Cluster | See PINPOINT TEST 7: CHARGING SYSTEM WARNING INDICATOR IS NEVER ON . |
| B1318 | Battery Voltage Low | Instrument Cluster | See PINPOINT TEST 7: CHARGING SYSTEM WARNING INDICATOR IS NEVER ON . |
| B1342 | ECU is Defective | Instrument Cluster | Clear all DTCs. Retrieve the DTCs. If DTC B1342 is still present, install a new instrument cluster. See INSTRUMENT CLUSTER . Test the system for normal operation. |
| B2143 | NVM Memory Failure | Instrument Cluster | See PINPOINT TEST 5: SPEEDOMETER/ODOMETER IS INOPERATIVE . |
| B2207 | ECU ROM Checksum | Instrument Cluster | Clear all DTCs. Retrieve the DTCs. If the DTC B2207 is still present, install a new instrument cluster. See INSTRUMENT CLUSTER . Test the system for normal operation. |
| B2477 | Module Configuration Failure | Instrument Cluster | See MODULE CONTROLLED FUNCTIONS . |
| B2675 | Trip Reset Button Stuck | Instrument Cluster | Install a new instrument cluster. See INSTRUMENT CLUSTER . Test the system for normal operation. |
| C1221 | ABS Warning Lamp Output Circuit Short to Ground | Instrument Cluster | See PINPOINT TEST 8: ANTI-LOCK BRAKE SYSTEM (ABS) WARNING INDICATOR IS NEVER/ALWAYS ON . |
| C1226 | Brake Warning Lamp Output Circuit Short to Ground | Instrument Cluster | See PINPOINT TEST 8: ANTI-LOCK BRAKE SYSTEM (ABS) WARNING INDICATOR IS NEVER/ALWAYS ON . |
| C2784 | RAM Checksum Failure | Instrument Cluster | Clear all DTCs. Retrieve the DTCs. If DTC C2784 is still present, install a new instrument cluster. See INSTRUMENT CLUSTER . Test the system for normal operation. |
| P0117 | Engine Coolant Temperature Circuit Low Input | Instrument Cluster | See PINPOINT TEST 2: INCORRECT TEMPERATURE GAUGE INDICATION . |
| U2050 | No Application Present | Instrument Cluster | Reflash the instrument cluster. If the DTC occurs after a software reflash, reflash the instrument cluster again. If the DTC is present after each attempt to reflash, install a new instrument cluster. See INSTRUMENT CLUSTER . Test the system for normal operation. |
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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.