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Home >> Infiniti >> 2023 >> QX80 Premium Select, AWD >> Repair and Diagnosis >> Steering >> Steering Control Systems >> Steering Control System (Diagnostics) >> Ecu Diagnosis Information >> Power Steering Control Unit >> Physical Values >> Physical Values
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Physical Values

Terminal No.

(Wire color)

Description

Condition

Value (Approx.)

+

-

Signal name

Input/Output

1

(R)

Ground

Power steering solenoid valve control voltage

Output

Vehicle speed: 0 km/h (0 MPH)

(Engine is running)

4.4 - 6.6 V

Vehicle speed: 100 km/h (62 MPH)

2.4 - 3.6 V

3

(GR)

Ground

Ignition switch power supply

Input

Ignition switch: ON

Battery voltage

Ignition switch: OFF

0 V

5

(L)

Ground

Power steering solenoid valve ground

--

Always

0 V

6

(B)

Ground

Ground

--

Always

0 V

8

(SB)

Ground

Vehicle speed signal

Input

Vehicle speed: 40 km/h (25 MPH)

CAUTION: Check air pressure of tire under standard condition.
NOTE: The maximum voltage varies depending on the specification (destination unit).
GNSDB13606Courtesy of NISSAN NORTH AMERICA, INC.

10

(B/SB)

Ground

Engine speed signal

Input

Engine is running

  • Warm-up condition
  • Idle speed
GNSDB21806Courtesy of NISSAN NORTH AMERICA, INC.

Engine is running

  • Warm-up condition
  • Engine speed: Approx. 2, 000 rpm
GNSDB21210Courtesy of NISSAN NORTH AMERICA, INC.
CAUTION: When using circuit tester or oscilloscope to measure voltage for inspection, be sure not to forcibly extend any connector terminals.