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.
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) |
|||||
: 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 .
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.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
No obligation. See pricing before you book.