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Home >> Infiniti >> 2018 >> QX30 Premium, FWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Introduction And Basic Inspection) >> Ecu Diagnosis Information >> Fuel Pump Control Module (FPCM) >> Reference Value >> Physical Values
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Physical Values

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

+

-

Signal name

Input/Output

2

(L)

9

(BR)

Fuel pump activation request signal

Input

Ignition switch: ON

12 V

Engine is running

0 V

3

(W)

--

Powertrain CAN-H

Input/Output

--

--

4

(L)

--

Powertrain CAN-L

Input/Output

--

--

5

(GR)

9

(BR)

Battery power supply

Input

Ignition switch: ON

Battery voltage

6

(O)

--

Sensor ground

(Fuel pressure sensor)

--

--

--

7

(V)

9

(BR)

Fuel pressure sensor signal

Input

Ignition switch: ON

2.5 V

Engine is running

2.3 V

8

(G)

9

(BR)

Sensor power supply

(Fuel pressure sensor)

Output

Ignition switch: ON

5 V

9

(BR)

--

FPCM ground

--

--

--

10

(O/LG)

9

(BR)

Battery power supply

Input

Always

Battery voltage

11

(BR/O)

--

Fuel pump ground

--

--

--

12

(O/L)

9

(BR)

Fuel pump control signal

Output

Ignition switch: ON

0 V

Engine is running (at idle)

GNSJSBIA5310GB-310Courtesy of NISSAN NORTH AMERICA, INC.

SYMBOL : Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)

*: Before measuring the terminal voltage, confirm that the battery is fully charged. Refer to How to Handle Battery .