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.
PID/Data Monitor Table Rear Body Control Module (RBCM)
2023 Mazda CX-5 SSECTION PID/Data Monitor Table Rear Body Control Module (RBCM)
WARNING: This page is about a different car, the 2017 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.
-: Not applicable
| PID | Unit/Operation | Data contents | Data read/use method | Module control terminal | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AT_DL_IG | Off/On | Auto door lock function (IG)
|
If the personalization features setting for the auto door lock is set to auto door lock in conjunction with the ignition, displays if the auto door lock set in conjunction with the ignition being switched off is applicable. Operates when the ignition is switched from ON to OFF. | - | ||||||||||||
| AT_DL_SHIFT | Off/On | Auto door lock function (shift)
|
If the personalization features setting for the auto door lock is set to auto door lock in conjunction with the AT shifting, displays if the auto door lock set in conjunction with gear shifting is applicable. Operates when the gear is shifted. | - | ||||||||||||
| AT_DL_VSPD | Off/On | Auto door lock function (vehicle speed)
|
If the personalization features setting for the auto door lock is set in conjunction with the vehicle speed, displays if the auto door lock set in conjunction with the vehicle speed is applicable. Operates at a vehicle speed of 20 km/h {12 mph} or more. | - | ||||||||||||
| BG_HORN_RLY (1) | Off/On | Theft-deterrent horn relay operation output
|
- | 2F (Theft-deterrent horn relay control) | ||||||||||||
| BRAKE_SW(2) | Off/On | Brake switch input signal
|
- | 2J (Brake switch signal) | ||||||||||||
| C_DL_SW_LK | Off/On | Door lock switch (lock side) input signal
|
- | 3F (Door lock switch signal) | ||||||||||||
| C_DL_SW_UNL | Off/On | Door lock switch (unlock side) input signal
|
- | 3F (Door lock switch signal) | ||||||||||||
| CNT_S_COMM | - | The rear body control module (RBCM) counts the lock/unlock request signal (serial transmission) received from the start stop unit.
NOTE:
|
If the lock/unlock operation is performed by the remote transmitter or request switch, the start stop unit sends the lock/unlock request signal to the rear body control module (RBCM). If the lock/unlock request signal is received normally, the rear body control module (RBCM) increases the counter by one for the PID. | 3B (Serial communication) | ||||||||||||
| DL_MT_A_LK | Off/On | All-door lock motor lock output
|
- | - | ||||||||||||
| DL_MT_A_UNL | Off/On | All-door lock motor unlock output
|
- | - | ||||||||||||
| DL_MT_D_UNL | Off/On | Driver's door lock motor unlock output
|
- | - | ||||||||||||
| DL_MT_S-LK |
NOTE:
|
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| DOOR_ALL | Close/OPEN | Open/closed condition of all doors
|
- | - | ||||||||||||
| DOOR_D | Close/OPEN | Door switch input on driver's door
|
- | 3W (Front door switch (driver's door) signal) | ||||||||||||
| ELAT_MT_RLY | Off/On | Electric latch motor relay operation output
|
- | 4C (Trunk lid release/Liftgate lock actuator control) | ||||||||||||
| ELAT_UNL | Off/On | Electric latch motor (unlock) operation output
|
- | - | ||||||||||||
| FUEL_SEN_M | V | Displays input voltage of fuel gauge sender unit input from rear body control module (RBCM) | If the fuel tank level is low, the rear body control module (RBCM) input voltage increases because the fuel gauge sender unit resistance decreases. | 3I (Fuel sensor signal) | ||||||||||||
| FUEL_SEN_S | V | Displays fuel gauge sender unit (SUB) input voltage input from rear body control module (RBCM) | If there is no fuel gauge sender unit (SUB), a constant 5 V is output. | - | ||||||||||||
| FUEL_SEN_SV | V | Displays power voltage supplied to fuel gauge sender unit from rear body control module (RBCM)
CAUTION:
|
After switching the ignition off, supply of the battery voltage to the fuel gauge sender unit from the rear body control module (RBCM) continues until the CAN communication is in the sleep mode. | 2P (Power supply) | ||||||||||||
| HOOD (1) | Close/OPEN | Hood latch switch condition
|
- | 3L (Hood latch switch signal) | ||||||||||||
| IG1_SW | Off/On | Displays power input condition of rear body control module (RBCM)
|
If there is a malfunction in the IG1 power supply input to the rear body control module (RBCM), the door lock and interior light controls, which the rear body control module (RBCM) controls, do not operate normally because PID item IG1_SW is used for determining ignition on/off for the rear body control module (RBCM). | 2I (Ignition power supply) | ||||||||||||
| KC_SW_D_LK | Off/On | Driver's key cylinder switch (lock side) operation condition
|
- | 3H (Driver's door key cylinder switch signal) | ||||||||||||
| KC_SW_D_UNL | Off/On | Driver's key cylinder switch (unlock side) operation condition
|
- | 3H (Driver's door key cylinder switch signal) | ||||||||||||
| LL_P/R (1) | Unlock/Other | Passenger/rear door lock link operation condition
|
- | 3J (Lock input (lock-link switch (passenger, rear door))) | ||||||||||||
| LL_SW_D_LK | Off/On | Driver's door lock link switch (lock side) operation condition
|
- | 3O (Lock input (front door lock-link switch (driver's door))) | ||||||||||||
| LL_SW_D_UNL | Off/On | Driver's door lock link switch (unlock-side) operation condition
|
- | 3M (Unlock input (front door lock-link switch (driver's door))) | ||||||||||||
| R_FOG_L_CS |
NOTE:
|
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| R_FOG_LMP |
NOTE:
|
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| R_LMP | Off/On | Back-up light operation output signal
|
- | - | ||||||||||||
| R_LMP_CS | Off/On/Unknown/Fault | Back-up light operation request signal from instrument cluster
|
- | 3E, 3G (CAN) | ||||||||||||
| R_WIP_MT_LO (3) | Off/On | Rear wiper motor operation output signal
|
- | 4T (Rear wiper motor control (LO)) | ||||||||||||
| ROOM_LMP | Off/On | Interior light output signal
|
- | 1E (Door unlock control) | ||||||||||||
| SEAT_B_2C (4) | Unbuckled/Buckled | Rear seat belt switch condition (center seat)
|
- | 3V (Rear seat belt (center) switch) | ||||||||||||
| SEAT_B_2L(4) | Unbuckled/Buckled | Rear seat belt switch condition (left-side seat)
|
- | 3X (Rear seat belt (LH) switch) | ||||||||||||
| SEAT_B_2R(4) | Unbuckled/Buckled | Rear seat belt switch condition (right-side seat)
|
- | 3T (Rear seat belt (RH) switch signal) | ||||||||||||
| SEAT_B_3C |
NOTE:
|
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| SEAT_B_3L |
NOTE:
|
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| SEAT_B_3R |
NOTE:
|
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| STOP_LMP(2) | Off/On | Brake light output control signal
|
- | 2H (Brake light control) | ||||||||||||
| STOP_LMP_CS (2) | Off/On | Brake light on monitor
|
- | 4D (Brake light control) | ||||||||||||
| T_ROOM_LMP | Off/On | Trunk compartment light (4SD)/cargo compartment (5HB) output control condition
|
- | 4P (Trunk compartment light (4SD)/cargo compartment light (5HB) signal) | ||||||||||||
| T_UNL_SW(5) | Off/On | Trunk lid opener switch (exterior) (4SD)/liftgate opener switch (5HB) input status
|
- | 4M (Trunk lid opener switch (exterior) (4SD)/liftgate opener switch (5HB) signal) | ||||||||||||
| T_UNL_SW_IP(6) | Off/On | Trunk lid opener switch (interior) condition
|
- | 2D (Trunk lid opener switch signal (interior)) | ||||||||||||
| TRUNK | Close/OPEN | Trunk lid latch switch (4SD)/liftgate latch switch (5HB) input status
|
- | 4K (Trunk lid/liftgate latch switch signal) | ||||||||||||
| VPWR_B_R | V | Displays voltage at rear body control module (RBCM) terminal 2P (power supply) | - | 2P (Power supply) | ||||||||||||
| VPWR_IG1 | V | Displays voltage at rear body control module (RBCM) terminal 2I (ignition power supply) | - | 2I (Ignition power supply) | ||||||||||||
|
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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:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.