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.
2009 Honda Element SC, AutomaticFACTORY OEM SERVICE PROCEDURE
Section 151 (Multiplex Integrated Control System)
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2017 Honda Odyssey, 2016 Honda Odyssey, 2015 Honda Odyssey, 2014 Honda Odyssey, and 2013 Honda Odyssey. However, it is still accessible from the selected car via links, so may be relevant.
- Component Location Index
- General Troubleshooting Information
- DTC Troubleshooting Index
- System Description
- Body Controller Area Network (B-CAN) and Fast Controller Area Network (F-CAN)
- Gateway Function
- Network "Loss of Communication" Error Checking Function
- Self-Diagnostic Function (On-Board Diagnosis)
- MICU
- Power Supply Voltage Monitoring Function
- Entry Lights Control System (Ceiling Lights, Map Lights, Ignition Key Light)
- Courtesy Light
- Turn Signal/Hazard Warning Lights
- Collision Detection Signal (CDS)
- Automatic Lighting System
- Key Interlock
- Power Door Locks
- Door Lock Response Operation
- Keyless Entry System
- Keyless Answer Back
- Security Answer Back
- Answer Back Response Operation
- Auto Power Door Locks (LOCK Operation)
- Auto Power Door Locks (UNLOCK Operation)
- Security Alarm System
- Prevention of Key Locked Inside Vehicle
- Power Window Relay
- Interior Lights Reminder
- Combination Light Switch
- Windshield Wiper Switch
- Rear Window Wiper Switch
- Rear MICU
- Relay Control Module
- Power Supply Voltage Monitoring Function
- Exterior Lights
- Daytime Running Lights
- Automatic Lighting System
- Exterior Lights Shutoff System
- Fog Lights
- Windshield Wiper Operation
- Washer Operation
- Security Alarm System
- Answer Back Response Operation
- Keyless Panic Function
- Rear Window Defogger Operation
- HDS Inputs and Function Tests
- Troubleshooting - B-CAN System Diagnosis Test Mode A
- Troubleshooting - B-CAN System Diagnosis Test Mode B
- Troubleshooting - B-CAN System Diagnosis Test Mode C
- Troubleshooting - B-CAN System Diagnosis Test Mode D
- Troubleshooting - B-CAN System Diagnosis Test Mode 1 and Test Mode 2 (without the HDS)
- Sleep and Wake-Up Mode Test
- Circuit Diagram
- DTC Troubleshooting
- DTC B1002: MICU Internal (EEPROM) Error
- DTC B1080: Power Supply Circuit (IG1 Line) Input Error for Relay Control Module and MICU
- DTC B1036: IG1 Power Supply Circuit Malfunction
- DTC U0199: MICU Lost Communication With Door Multiplex Control Unit
- DTC U1280: Communication Bus Line Error (BUS-OFF)
- DTC U128D: MICU Lost Communication With Gauge Control Module
- DTC U1291: MICU Lost Communication With Relay Control Module (RM Frame)
- MICU Input Test
Factory Service Tools
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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.