DTC B1812 DETECTION CONDITION POSSIBLE CAUSE DTC B1812 Backup light switch input circuit short to battery DETECTION CONDITION Short to power supply in wiring harness between PJB and back-up light switch POSSIBLE CAUSE Short to power supply in wiring harness between PJB terminal J-01 AE and back-up light switch terminal B (MTX) Short to power supply in wiring harness between PJB terminal J-01 AE and TR switch terminal D (ATX) Back-up light switch malfunction (MTX) TR switch malfunction (ATX) PJB malfunction
Home/Mazda/3/Mazda 3 BK рестайлинг (2006-2009)/Repair manual/Testing & Diagnostics/DTC B1812 [CONTROL SYSTEM]
Contents
Section: Testing & Diagnostics- Symptom Troubleshooting (Lf, L3): Overview
- Symptom Troubleshooting (Lf, L3): Diagnosis
- Symptom Troubleshooting (Lf, L3): Maintenance
- Symptom Troubleshooting (Lf, L3): NVH
- Symptom Troubleshooting (Lf, L3): Other
- Engine Control System (Lf, L3): Overview
- Engine Control System (Lf, L3): Diagnosis
- Engine Control System (Lf, L3): Removal & Installation
- Engine Control System (Lf, L3): Other
- Engine Control System (L3 with TC): Overview
- Engine Control System (L3 with TC): Diagnosis
- Engine Control System (L3 with TC): Removal & Installation
- Engine Control System (L3 with TC): Other
- Symptom Troubleshooting (L3 with TC): Overview
- Symptom Troubleshooting (L3 with TC): Diagnosis
- Symptom Troubleshooting (L3 with TC): Maintenance
- Symptom Troubleshooting (L3 with TC): NVH
- Symptom Troubleshooting (L3 with TC): Other
- On-Board Diagnostic - Engine Control System: Overview
- On-Board Diagnostic - Engine Control System: Diagnosis
- DTC B1014 [CONTROL SYSTEM]
- DTC B1217 [CONTROL SYSTEM]
- DTC B1311 [CONTROL SYSTEM]
- DTC B1317 [CONTROL SYSTEM]
- DTC B1318 [CONTROL SYSTEM]
- DTC B1320 [CONTROL SYSTEM]
- DTC B1328 [CONTROL SYSTEM]
- DTC B1336 [CONTROL SYSTEM]
- DTC B1342 [CONTROL SYSTEM]
- DTC B1345 [CONTROL SYSTEM]
- DTC B1350 [CONTROL SYSTEM]
- DTC B1447 [CONTROL SYSTEM]
- DTC B1472 [CONTROL SYSTEM]
- DTC B1502 [CONTROL SYSTEM]
- DTC B1506 [CONTROL SYSTEM]
- DTC B1520 [CONTROL SYSTEM]
- DTC B1570 [CONTROL SYSTEM]
- DTC B1572 [CONTROL SYSTEM]
- DTC B1607 [CONTROL SYSTEM]
- DTC B1614 [CONTROL SYSTEM]
- DTC B1696 [CONTROL SYSTEM]
- DTC B1798 [CONTROL SYSTEM]
- DTC B1812 [CONTROL SYSTEM]
- DTC B1873 [CONTROL SYSTEM]
- DTC B2017 [CONTROL SYSTEM]
- DTC B2018 [CONTROL SYSTEM]
- DTC B2060 [CONTROL SYSTEM]
- DTC B2095 [CONTROL SYSTEM]
- DTC B2096 [CONTROL SYSTEM]
- DTC B2114 [CONTROL SYSTEM]
- DTC B2175 [CONTROL SYSTEM]
- DTC B2180 [CONTROL SYSTEM]
- DTC B2181 [CONTROL SYSTEM]
- DTC B2212 [CONTROL SYSTEM]
- DTC B2218 [CONTROL SYSTEM]
- DTC B2254 [CONTROL SYSTEM]
- DTC B2259 [CONTROL SYSTEM]
- DTC B2477 [CONTROL SYSTEM]
- DTC B2479 [CONTROL SYSTEM]
- DTC B2512 [CONTROL SYSTEM]
- DTC B2555 [CONTROL SYSTEM]
- DTC B2559 [CONTROL SYSTEM]
- DTC B2574 [CONTROL SYSTEM]
- DTC B2721 [CONTROL SYSTEM]
- DTC B2897 [CONTROL SYSTEM]
- DTC B2898 [CONTROL SYSTEM]
- DTC B2899 [CONTROL SYSTEM]
- DTC B2966 [CONTROL SYSTEM]
- DTC C1189 [CONTROL SYSTEM]
- DTC U2030 [CONTROL SYSTEM]
- Abbreviations
- Accessory Drive Belts
- Airbag
- Anti-Lock/traction Control
- Automatic HVAC System
- Automatic Trans
- Auxiliary Emission Control Systems
- Axle Shafts
- Basic Trouble Shooting
- Brakes
- Cabin Air Filter
- Charging System
- Check Lists
- Clutches Manual & Hydraulic
- Communication Devices
- Cooling System (Mechanical)
- Cruise Control Systems
- Diagnostic Connector Locations
- Door Locks & Anti-Theft Systems
- Drive Cycles
- Driveline/axles
- DTC Index
- Electrical Component Locations
- Electronic Steering
- Emission Applications
- Engine
- Engine Performance
- Entertainment Systems
- Exhaust
- Exterior Body Panels
- Exterior Lights
- Exterior/interior Trim
- Fuel System
- Fuses & Circuit Breakers
- Gauges & Instrument Panels
- Heated Glass/defoggers
- Identification
- Ignition Switch/steering Lock
- Ignition System
- Lubrication System
- Manual & Power Steering
- Manual Trans
- Mechanical
- Mechanical - Hydraulic
- Metric Conversions
- Mode 6
- Navigation System
- Oem General Information
- Parking Brake System
- Reset Procedures
- Restraints Control Systems
- Seats
- Specifications
- Starter
- Steering
- Steering Column Switches
- Sun Roof/t-Top/convertible Top
- Suspension Front
- Suspension Rear
- Testing & Diagnostics
- Traction Control Disable
- Transmission
- Wheel & Tire System
- Wheel Alignment
- Wheel Hubs
- Windows
- Wiper/washer Systems
![Scheme 226: DTC B1812 [CONTROL SYSTEM]](https://i.diagnostdata.com/repair/1d/1db6275c2c80b8da64fe66920485ad8be9a64faeb2bea3d3283683105c1ca0df.webp)