Max/Min/Optimum Coolant temperature numbers for Torque (OBD2)? - Toyota Yaris Forums

SandJA1 · 08-08-2018, 06:09 PM

Hello, I've searched to no avail for these numbers. I'd like to set up a gauge for the Torque app (obdii). So I just need to know if the numbers I have are the correct numbers and also the number for max temp..

From what I've found online,

- Engine is cold at <=130°F
- Ideal temp is 180°F
- No known maximum temp

What temp does the high temp indicator light go on?

Thank you for any help! I just got the Yaris, so I'm excited to set up all these analysis tools.

SirDigby · 08-08-2018, 10:09 PM

i think the light comes on at 230F...

CoryM · 08-09-2018, 12:32 AM

According to service manual; fan-on temp is 93C/199F (which is surprisingly low for a modern car). So the engine's ideal operating range is 180-199F. If you want to confirm, just look at the temp when the fan comes on (make sure HVAC is off).

CoryM · 08-09-2018, 12:38 AM

"The engine coolant temperature indicator light turns off when the engine coolant temperature exceeds
55°C (131°F) and illuminates when the temperature decreases to below 45°C (113°F).
The engine coolant temperature warning light flashes when the engine coolant temperature reaches
117°C (242.6°F) and illuminates when the temperature exceeds 120°C (248°F). When the temperature
decreases to 119.5°C (247.1°F) while the warning light is illuminated, the warning light begins to flashing.
In addition, when the temperature decreases to below 116.5°C(241.7°F) the warning light turns off."

08-08-2018, 06:09 PM	#1
SandJA1 I've made a post! Drives: 2007 2-Dr Hatchback Join Date: Aug 2018 Location: USA Posts: 1	Max/Min/Optimum Coolant temperature numbers for Torque (OBD2)? Hello, I've searched to no avail for these numbers. I'd like to set up a gauge for the Torque app (obdii). So I just need to know if the numbers I have are the correct numbers and also the number for max temp.. From what I've found online, - Engine is cold at <=130°F - Ideal temp is 180°F - No known maximum temp What temp does the high temp indicator light go on? Thank you for any help! I just got the Yaris, so I'm excited to set up all these analysis tools.

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08-08-2018, 10:09 PM	#2
SirDigby View User's Garage Drives: 2007 yaris 3 door Join Date: Sep 2015 Location: Denver, Colorado Posts: 1,000	i think the light comes on at 230F...

08-09-2018, 12:32 AM	#3
CoryM Drives: 2009 5-door, 5-speed Join Date: Sep 2011 Location: White Rock BC Posts: 687	According to service manual; fan-on temp is 93C/199F (which is surprisingly low for a modern car). So the engine's ideal operating range is 180-199F. If you want to confirm, just look at the temp when the fan comes on (make sure HVAC is off).

08-09-2018, 12:38 AM	#4
CoryM Drives: 2009 5-door, 5-speed Join Date: Sep 2011 Location: White Rock BC Posts: 687	"The engine coolant temperature indicator light turns off when the engine coolant temperature exceeds 55°C (131°F) and illuminates when the temperature decreases to below 45°C (113°F). The engine coolant temperature warning light flashes when the engine coolant temperature reaches 117°C (242.6°F) and illuminates when the temperature exceeds 120°C (248°F). When the temperature decreases to 119.5°C (247.1°F) while the warning light is illuminated, the warning light begins to flashing. In addition, when the temperature decreases to below 116.5°C(241.7°F) the warning light turns off."