Hi guys,
I’ve got some curiosity about the P0128 “Thermostat Function” code. I pulled it from my 2012 SV V6 4x4 Frontier today, after I notice the light had come on while going home for lunch. I did it with this ‘morse code-like’ DIY method. Nissan Vehicles Engine OBDII Codes Read Without Nissan CONSULT or Scan Tool | Nissanhelp.com and here is some description on the code, which seems to be generic. http://www.obd-codes.com/p0128
What seems really odd to me is that it’s about 89 degrees out today, and has been very warm the past few days. Warmest days we’ve had yet this year. I guess the engine could still be running cooler than it determines it is supposed to be within a certain time after start-up, even if it’s hot outside? It just seems to me like something that would show up when it’s cooler, or downright cold.
It makes me wonder if it could be related to a sensor thinking it’s a different temp than it is, rather than a thermostat getting stuck open and it actually running cooler.
My truck just rolled over 17,000 miles, and I do a lot of short trips 9 (I work less than 2 miles from home). Only complication I can think of is that in 2013, I’d had it for exactly one year and 5,000 miles – I had a major right front corner collision, and they had to go in and tear it apart to the firewall, new coolant overflow bottle, probably had the lines to the heater core apart, etc. I haven’t seen any trouble in the last 3 yrs / 12,000 miles, other than noticing some crumbly coolant scum one of the heater core line junctions into the firewall, looked like it had seeped some.
Just seems odd to me… any thoughts or common experiences?
EDIT: Just realized I should definitely still be under powertrail 5 yr warranty, picked up the '12 in Aug '12. Plus the dealer I bought it from did the accident repairs, which are supposed to be warranted for "life", so I'll have to see what they think...
I’ve got some curiosity about the P0128 “Thermostat Function” code. I pulled it from my 2012 SV V6 4x4 Frontier today, after I notice the light had come on while going home for lunch. I did it with this ‘morse code-like’ DIY method. Nissan Vehicles Engine OBDII Codes Read Without Nissan CONSULT or Scan Tool | Nissanhelp.com and here is some description on the code, which seems to be generic. http://www.obd-codes.com/p0128
What seems really odd to me is that it’s about 89 degrees out today, and has been very warm the past few days. Warmest days we’ve had yet this year. I guess the engine could still be running cooler than it determines it is supposed to be within a certain time after start-up, even if it’s hot outside? It just seems to me like something that would show up when it’s cooler, or downright cold.
It makes me wonder if it could be related to a sensor thinking it’s a different temp than it is, rather than a thermostat getting stuck open and it actually running cooler.
My truck just rolled over 17,000 miles, and I do a lot of short trips 9 (I work less than 2 miles from home). Only complication I can think of is that in 2013, I’d had it for exactly one year and 5,000 miles – I had a major right front corner collision, and they had to go in and tear it apart to the firewall, new coolant overflow bottle, probably had the lines to the heater core apart, etc. I haven’t seen any trouble in the last 3 yrs / 12,000 miles, other than noticing some crumbly coolant scum one of the heater core line junctions into the firewall, looked like it had seeped some.
Just seems odd to me… any thoughts or common experiences?
EDIT: Just realized I should definitely still be under powertrail 5 yr warranty, picked up the '12 in Aug '12. Plus the dealer I bought it from did the accident repairs, which are supposed to be warranted for "life", so I'll have to see what they think...
