2003 Infiniti FX45FACTORY OEM SERVICE PROCEDURE

Specifications Between AWD Control Unit Terminals

Data and reference value and are measured between each terminal and ground.

AWD CONTROL UNIT INSPECTION

Terminal Wire color Item Condition Data (Approx.)
1 L/W AWD solenoid (+)
  • Engine running
  • LOCK mode
When releasing accelerator pedal. 0V
After warming up engine, depress accelerator pedal slowly. Voltage rises gradually in response to throttle position.
2 L/OR AWD solenoid (-) Engine idling 0V
6 PU K-LINE (CONSULT-II signal) - -
7 G/R Power supply Ignition switch: "ON" Β  Battery voltage
Ignition switch: "OFF" Β  0V
8 L CAN communication H line - -
9 G/W Solenoid battery Ignition switch: "ON" Battery voltage
Ignition switch: "OFF" Battery voltage
10 B Ground Always 0V
11 B
16 R CAN communication L line - -
CAUTION: When using a circuit tester to measure voltage for inspection, be sure not to extend forcibly any connector terminals.
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:

  • 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.

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