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.
2024 Infiniti QX55 EssentialFACTORY OEM SERVICE PROCEDURE
Reference Value
VALUES ON THE DIAGNOSIS TOOL
NOTE:
- The following table includes information (items) inapplicable to this vehicle. For information (items) applicable to this vehicle, refer to CONSULT display items.
- Numerical values in the following table are reference values.
- These values are input/output values that ATR control module receives/transmits and may differ from actual operations.
- For outlines of following items, refer to CONSULT Function .
| Monitor Item | Condition | Values/Status | |
|---|---|---|---|
| ODO/TRIP METER | Ignition switch : ON Compare CONSULT value with the meter indication. | Almost the same ODO/TRIP as the meter indication is displayed. | |
| IGN voltage | Ignition switch : ON | Battery voltage | |
| ACC sensor voltage | Ignition switch : ON | The voltage (V) detected by G sensor is displayed. Voltage 0~5V Offset 2.35V, Sine wave of frequency 30-240Hz 0.15V/1G | |
| ENGINE RPM | Start the engine and compare CONSULT value with the meter indication. | Almost the same engine speed as the meter indication is displayed. | |
| Actuator current | Ignition switch : ON | 0 A | |
| Board degC | Ignition switch : ON | The board temperature of ATR control module is displayed. | |
| Error code | Ignition switch : ON | Normal condition : 0 When error is detected : Internal code is other than 0 | |
TERMINAL LAYOUT
PHYSICAL VALUES
Specification data are reference values and are measured between each terminal and ground.
| Terminal No.(Wire color) | Description | Condition | Value(Approx.) | ||
|---|---|---|---|---|---|
| + | - | Signal name | Input/Output | ||
| 1(GR) | - | Drivetrain CAN-H | Input/Output | - | - |
| 3(G) | - | Sensor ground | - | - | - |
| 4(W) | 14(B) | Sensor power supply | Output | Ignition switch: ON | 5.0 V |
| Ignition switch: OFF | 0 V | ||||
| 5(R) | - | Drivetrain CAN-L | Input/ Output | - | - |
| 6(P) | - | Sensor shield | - | - | - |
| 8(R) | 14(B) | G sensor | Input | [Ignition switch: ON]When the vehicle stops on a flat road | 2.35 V |
| 9(W) | - | ATR actuator (-) | Output | - | - |
| 10(R) | 14(B) | G sensor | Input | Ignition switch: ON | 12 V |
| IgnitiOFF switch OFF | 0V | ||||
| 11(B) | - | ATR actuator (+) | Output | - | - |
| 12(Shield) | - | ATR actuator ground | - | - | - |
| 14(B) | - | ATR ground | - | - | 0 V |
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.