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.
Can Communication Signal Chart
Refer to HOW TO USE CAN COMMUNICATION SIGNAL CHART for how to use CAN communication signal chart.
- Refer to ABBREVIATION LIST for the abbreviations of the connecting units.
T: Transmit R: Receive
| Signal Name/Connecting Unit | ECM | 4WD | ABS | IPDM - E | TCM | AVM | AV | EPS | M&A | STRG | HVAC | MDU | BCM |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A/C compressor request signal | T | R | |||||||||||
| Accelerator pedal position signal | T | R | R | R | |||||||||
| ASCD status signal | T | R | |||||||||||
| Boost pressure signal | T | R | |||||||||||
| Closed throttle position signal | T | R | |||||||||||
| Cooling fan speed request signal | T | R | |||||||||||
| Engine and CVT integrated control signal | T | R | |||||||||||
| R | T | ||||||||||||
| Engine coolant temperature signal | T | R | R | ||||||||||
| Engine speed signal | T | R | R | R | R* 1 | R | |||||||
| T | R* 2 | ||||||||||||
| Engine status signal | T | R | R | R | R | ||||||||
| Engine torque signal | T | R | R | ||||||||||
| Fuel consumption monitor signal | T | R | R | ||||||||||
| Malfunctioning indicator signal | T | R | |||||||||||
| Oil pressure warning lamp signal | T | R | |||||||||||
| Power generation command value signal | T | R | |||||||||||
| Speed limiter operation signal | T | R | |||||||||||
| Starter motor relay cut off signal | T | R | R | ||||||||||
| AWD mode indicator signal | T | R | |||||||||||
| AWD warning lamp signal | T | R | |||||||||||
| Current AWD mode signal | T | R | |||||||||||
| Target engine torque signal | R | T | |||||||||||
| Torque vectoring indicator signal | T | R | |||||||||||
| ABS malfunction signal | T | R | |||||||||||
| ABS operation signal | R | T | R | R | |||||||||
| ABS warning lamp signal | T | R | |||||||||||
| Brake warning lamp signal | T | R | |||||||||||
| Decel G sensor signal | R | T | R | ||||||||||
| Request drive torque signal | R | T | |||||||||||
| Side G sensor signal | R | T | R | ||||||||||
| Stop lamp switch signal | R | T | |||||||||||
| R | T | ||||||||||||
| Target throttle position signal | R | T | |||||||||||
| TCS malfunction signal | R | T | |||||||||||
| TCS operation signal | R | T | R | ||||||||||
| VDC malfunction signal | R | T | |||||||||||
| VDC OFF indicator lamp signal | T | R | |||||||||||
| VDC operation signal | R | T | R | ||||||||||
| VDC warning lamp signal | T | R | |||||||||||
| Vehicle speed signal (ABS) | R | R | T | R | R | R | R | R | |||||
| Yaw rate signal | R | T | |||||||||||
| Back-up lamp switch signal* 1 | T | R | |||||||||||
| Detention switch signal | T | R | |||||||||||
| Front wiper stop position signal | T | R | |||||||||||
| High beam status signal | R | T | |||||||||||
| Ignition switch ON signal | T | R | |||||||||||
| R | T | ||||||||||||
| Ignition switch signal | T | R | |||||||||||
| Interlock/PNP switch signal | T | R | |||||||||||
| R | T | ||||||||||||
| Low beam status signal | R | T | |||||||||||
| Push-button ignition switch status signal | T | R | |||||||||||
| Sleep - ready signal | T | R | |||||||||||
| T | R | ||||||||||||
| Starter control relay signal | T | R | |||||||||||
| R | T | ||||||||||||
| Starter relay status signal | T | R | |||||||||||
| R | T | ||||||||||||
| Starter motor relay/Starter motor control relay control signal | R | T | |||||||||||
| ATF temperature signal | R | T | |||||||||||
| Current gear position signal | R | R | T | ||||||||||
| CVT indicator signal | T | R | |||||||||||
| CVT ratio signal | R | T | |||||||||||
| Input shaft revolution signal | R | R | T | ||||||||||
| Manual mode shift refusal signal | T | R | |||||||||||
| N range signal | R | T | |||||||||||
| Next gear position signal | R | T | |||||||||||
| Output shaft revolution signal | R | R | T | ||||||||||
| P range signal | R | T | |||||||||||
| R range signal | R | T | |||||||||||
| Shift position signal | R* 2 | T | R | R | |||||||||
| Vehicle speed signal (TCM) | T | R | |||||||||||
| Drive mode select signal* 3 | R | T | |||||||||||
| Buzzer output signal | T | R | |||||||||||
| R | T | ||||||||||||
| View change signal | T | R | |||||||||||
| Camera OFF signal | R | T | |||||||||||
| Camera switch signal | R | T | |||||||||||
| EPS operation signal | R | T | |||||||||||
| EPS warning lamp signal | T | R | |||||||||||
| Brake fluid level switch signal | R | T | |||||||||||
| Manual mode shift down signal | R | T | |||||||||||
| Manual mode shift up signal | R | T | |||||||||||
| Manual mode signal | R | T | |||||||||||
| Non-manual mode signal | R | T | |||||||||||
| Paddle shift up signal* 4 | R | T | |||||||||||
| Paddle shift down signal* 4 | R | T | |||||||||||
| Odometer signal | T | R | R | ||||||||||
| Parking brake switch signal | R | R | T | ||||||||||
| Seat belt buckle switch signal (driver side) signal | T | R | |||||||||||
| Vehicle speed signal (Meter) | R | R | R | R | T | R | R | ||||||
| Wake up signal | T | R | |||||||||||
| Steering angle sensor malfunction signal | R | T | |||||||||||
| Steering angle sensor signal | R | R | R | T | |||||||||
| Steering calibration signal | R | T | |||||||||||
| ECO mode signal | R | R | R | T | |||||||||
| NORMAL mode signal | R | R | T | ||||||||||
| SPORT mode signal | R | R | T | ||||||||||
| A/C display signal | T | R | |||||||||||
| A/C ECO setting signal | R | T | |||||||||||
| A/C operation signal | R | T | |||||||||||
| Rear window defogger switch signal* 5 | T | R | |||||||||||
| Idle up request signal | R | T | |||||||||||
| A/C ON signal | R | T | |||||||||||
| Blower fan ON signal | R | T | |||||||||||
| Daytime running light request signal* 6 | R | T | |||||||||||
| Door switch signal | R | R | T | ||||||||||
| Engine start operation indicator lamp signal | R | T | |||||||||||
| Front fog light request signal | R | T | |||||||||||
| Front wiper request signal | R | T | |||||||||||
| Front wiper service position signal | R | T | |||||||||||
| High beam request signal | R | R | T | ||||||||||
| Horn reminder signal | R | T | |||||||||||
| Key warning lamp signal | R | T | |||||||||||
| LOCK warning lamp signal | R | T | |||||||||||
| Low beam request signal | R | T | |||||||||||
| Low tire pressure warning lamp signal | R | T | |||||||||||
| Position light request signal | R | R | R | T | |||||||||
| Rear window defogger control signal | R | T | |||||||||||
| R | T | R* 5 | |||||||||||
| Shift P warning lamp signal | R | T | |||||||||||
| Sleep wake up signal | R | R | R | T | |||||||||
| Theft warning horn request signal | R | T | |||||||||||
| TPMS malfunction warning lamp signal | R | T | |||||||||||
| Turn indicator signal | R | T |
* 1: M/T models
* 2: CVT models
* 3: With Integrated Control System
* 4: NISMO RS models
* 5: With automatic air conditioning
* 6: With daytime running light system
CAN data of the air bag diagnosis sensor unit is not used by usual service work, thus it is omitted.
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:
- • 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.