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Torque » Torque OBD ECU Scanner » Torque Discussion / Ideas » Coolant sensor voltage PID?

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Author Topic: Coolant sensor voltage PID?
mazzerman
Member
Posts: 3
Post Coolant sensor voltage PID?
on: February 28, 2017 (GMT)

Is there a PID available that will give the actual voltage at the 5v signal wire on the Coolant temperature sensor (ECT) as well as the temp?
F-150Torqued
Member
Posts: 437
Post Re: Coolant sensor voltage PID?
on: February 28, 2017 (GMT)

That is a ‘loaded’ question. Depends on what kind of vehicle you’re talking about and what PIDS happen to be available on it.

If you are talking about a FORD F150 5.4L Triton engine like mine – it doesn’t even have an ECT sensor AT ALL. Ford uses the CHT sensor – together with other parameters I’m sure – to calculate ECT. Ect is output on OBDII PID# 0005 in Degrees C.

Cylinder Head Temperature is output on OBDII PID# 1624 (Normalized, that is dampened somewhat to keep it from swinging rapidly with changes in acceleration / deceleration, etc.) You can ALSO read CHT Volts at OBDII PID# 1685 in Volts. (Formula to convert THAT to degrees F = (65535-((A*256)+B))/94.875 .

But all that is worthless engine if you are dealing with a different type vehicle.

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54371019
mazzerman
Member
Posts: 3
Post Re: Coolant sensor voltage PID?
on: February 28, 2017 (GMT)

Thanks for the reply
It’s on a 1999 Dodge Stratus 2.5 V6 and has an ECT and can take readings with a DVOM but would prefer to see what the ECU is seeing to be more accurate

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