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.
2014 Infiniti Q50 Base, AWDFACTORY OEM SERVICE PROCEDURE
Physical Values
NOTE:
- VVEL control module is located behind the IPDM E/R. For this inspection, remove hoodledge cover (RH).
- Specification data are reference values and are measured between each terminal and ground.
- Pulse signal is measured by CONSULT.
| Terminal No. | Description | Condition | Value (Approx.) | ||||
|---|---|---|---|---|---|---|---|
| + | - | Signal name | Input/Output | ||||
| 1 (W) | 14 (B/W) | VVEL actuator motor power supply (bank 2) | Input | [Ignition switch: ON] | BATTERY VOLTAGE (11 - 14 V) | ||
| 2 (L/B) | 14 (B/W) | VVEL actuator motor (High lift) (bank 2) | Output | [Engine is running]
|
0 - 14 V(1) | ||
[Engine is running]
|
0 - 14 V(1) | ||||||
| 3 (G) | 4 (W) | VVEL control shaft position sensor 1 (bank 1) | Input | [Engine is running]
|
Approx.0.25 - 1.40 V | ||
[Engine is running]
|
Approx.0.25 - 4.75 V | ||||||
| 4 (W) | - | Sensor ground [VVEL control shaft position sensor 1 (bank 1)] |
- | - | - | ||
| 5 (R) | 6 (B) | VVEL control shaft position sensor 1 (bank 2) | Input | [Engine is running]
|
Approx.0.25 - 1.40 V | ||
[Engine is running]
|
Approx.0.25 - 4.75 V | ||||||
| 6 (B) | - | Sensor ground [VVEL control shaft position sensor 1 (bank 2)] |
- | - | - | ||
| 7 (SB) | 6 (B) | Sensor power supply [VVEL control shaft position sensor 1 (bank 2)] |
- | [Ignition switch: ON] | 5 V | ||
| 8 (BG) | 14 (B/W) | Power supply for VVEL control module | - | [Ignition switch: ON] | BATTERY VOLTAGE (11 - 14 V) | ||
| 9 (LG) | 4 (W) | Sensor power supply [VVEL control shaft position sensor 1 (bank 1)] |
- | [Ignition switch: ON] | 5 V | ||
| 11 (GR) | - | ENGINE communication line | Input/Output | - | - | ||
| 12 (G) | 14 (B/W) | VVEL actuator motor (High lift) (bank 1) | Output | [Engine is running]
|
0 - 14 V(1) | ||
[Engine is running]
|
0 - 14 V(1) | ||||||
| 13 (Y) | 14 (B/W) | VVEL actuator motor power supply (bank 1) | Input | [Ignition switch: ON] | BATTERY VOLTAGE (11 - 14 V) | ||
| 14 (B/W) | - | VVEL control module ground | - | [Engine is running]
|
- | ||
| 15 (L/Y) | 14 (B/W) | VVEL actuator motor (Low lift) (bank 2) | Output | [Engine is running]
|
0 - 14 V(1) | ||
[Engine is running]
|
0 - 14 V(1) | ||||||
| 16 (R) | 17 (L) | VVEL control shaft position sensor 2 (bank 1) | Input | [Engine is running]
|
3.50 - 4.75 V | ||
[Engine is running]
|
0.25 - 4.75 V | ||||||
| 17 (L) | - | Sensor ground [VVEL control shaft position sensor 2 (bank 1)] |
- | - | - | ||
| 18 (G) | 19 (W) | VVEL control shaft position sensor 2 (bank 2) | Input | [Engine is running]
|
3.50 - 4.75 V | ||
[Engine is running]
|
0.25 - 4.75 V | ||||||
| 19 (W) | - | Sensor ground [VVEL control shaft position sensor 2 (bank 2)] |
- | - | - | ||
| 20 (BR) | 19 (W) | Sensor power supply [VVEL control shaft position sensor 2 (bank 2)] |
- | [Ignition switch: ON] | 5 V | ||
| 21 (V) | 14 (B/W) | VVEL actuator motor relay abort signal | Input | [Engine is running]
|
0 V | ||
| 22 (P) | 17 (L) | Sensor power supply [VVEL position sensor 2 (bank 1)] |
- | [Ignition switch: ON] | 5 V | ||
| 23 (Y) | 14 (B/W) | VVEL actuator motor relay | Output | [Ignition switch: OFF] | BATTERY VOLTAGE (11 - 14 V) | ||
| [Ignition switch: ON] | 0 - 1.0 V | ||||||
| 24 (L) | - | ENGINE communication line | Input/Output | - | - | ||
| 25 (BR) | 14 (B/W) | VVEL control motor (Low lift) (bank 1) | Output | [Engine is running]
|
0 - 14 V(1) | ||
[Engine is running]
|
0 - 14 V(1) | ||||||
|
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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:
- • 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.
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