Mazda CX-5 Service & Repair Manual: Rear Body Control Module (Rbcm)
Outline
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Positioned at the rear of the vehicle, the rear body control module (RBCM) performs numerous system controls for functions at the vehicle rear.
Function
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The rear body control module (RBCM) controls the system based on the input/output signals.
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The functions which are controlled are as follows:
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Control |
Content |
Reference |
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Room light control system control |
The rear body control module (RBCM) changes the illumination condition and illumination level of the interior lights (door position) according to whether the doors are opened/closed and locked/unlocked. |
(See ROOM LIGHT CONTROL SYSTEM.) |
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Back-up light control |
The back-up light illuminates in conjunction with the shift operation. |
(See REAR COMBINATION LIGHT.) |
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Power door lock system control |
A power door lock system has been adopted in which all doors and the liftgate are locked/unlocked when the driver's door is locked/unlocked using the driver's door lock knob, or the door key cylinder is operated. |
(See POWER DOOR LOCK SYSTEM.) |
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Rear wiper system control |
Equipped with continuous, auto-stop, intermittent wiper, and synchronized washer and wiper operation. |
(See REAR WIPER SYSTEM.) |
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Liftgate opener system control |
A liftgate opener system has been adopted in which the liftgate can be opened just by pressing the liftgate opener switch. |
(See LIFTGATE OPENER SYSTEM.) |
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Theft-deterrent system |
The theft-deterrent system operates the theft-deterrent horn and hazard warning lights if a door, liftgate or the hood is improperly opened. |
(See THEFT-DETERRENT SYSTEM.) |
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CAN (Controller Area Network) |
Sends and receives signals between CAN system-related modules using the CAN system. |
(See CONTROLLER AREA NETWORK (CAN) SYSTEM.) |
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On-board diagnostic system |
The rear body control module (RBCM) is equipped with an on-board diagnosis function which records DTCs in the event of a malfunction. |
(See ON-BOARD DIAGNOSTIC SYSTEM [REAR BODY CONTROL MODULE (RBCM)].) |
Structural view
System wiring diagram
Power window system, Auto dimming mirror
Power door lock system, theft-deterrent system
Room lights, Brake light system
Rear wiper system
Fuel-level sensor system
CAN system
Fail-safe
Room light control system
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If an error is detected in a combination of the door lock-link switch signals, the rear body control module (RBCM) controls the interior light based on the signal before the error occurred.
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If the CAN signal cannot be received normally, the rear body control module (RBCM) controls the interior light based on the signal last received. If the CAN signal cannot be received normally for 5 s or more, the rear body control module (RBCM) stops the interior light control.
Back-up light
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Function not equipped.
Power door lock system
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Function not equipped.
Rear wiper system
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If the CAN signal cannot be received normally, the rear body control module (RBCM) controls the rear wiper based on the signal last received. If the CAN signal cannot be received normally for 5 s or more, the rear body control module (RBCM) stops the rear wiper control.
Liftgate opener system
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If the CAN signal cannot be received normally, the liftgate open operation is inhibited.
Theft-deterrent system
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Function not equipped.
PID/Data Monitor Inspection [Rear Body Control Module (Rbcm)]
1. Connect the M-MDS to the DLC-2.
2. After the vehicle is identified, select the following items from the initialization
screen of the M-MDS.
a. Select “DataLogger”.
b. Select “Modules ...
Rear Body Control Module (Rbcm) Configuration (Using As Built Data)
NOTE:
If the configuration is performed using As-Built data, the set value of the
personalization function is reset to the initial value (condition when shipped
from factory). Verify the ...
Other materials:
Rear Sash Molding Installation
WARNING:
Using a utility knife with bare hands can cause injury. Always wear gloves
when using a utility knife.
NOTE:
Double-sided adhesive tape has already been attached to the new rear sash
molding.
1. When installing a new rear sash molding, follow the procedure ...
Keyless Entry System
This system uses the key buttons to remotely lock and unlock the doors and the
liftgate.
The system can start the engine without having to take the key out of your purse
or pocket.
It can also help you signal for attention.
Operating the theft-deterrent system is also possible on theft-deterr ...
Lubrication System
Outline
Pressure loss is reduced by optimizing the oil passage.
With the adoption of the chain drive type oil pump, oil pump drive force
has been reduced.
With the adoption of the oil shower pipe, sliding resistance has been reduced.
With the adoption of the engine ...
