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.
Input/Output Signal Chart
|
Sensor |
Input signal to ECM |
ECM function |
Actuator |
|
Crankshaft position sensor |
Engine speed and piston position |
Intake valve timing control |
Intake valve timing control solenoid valve |
|
Camshaft position sensor |
|||
|
Engine oil temperature sensor |
Engine oil temperature |
||
|
Engine coolant temperature sensor |
Engine coolant temperature |
||
|
Combination meter |
Vehicle speed* |
*: This signal is sent to the ECM via the CAN communication line.
NO RELATED
Use the Manual With the Right Hardware
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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.