P1499 Code on an ASX
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Junior Member
Joined: May 2023
Posts: 2
P1499 Code on an ASX
Hi everyone, I hope that this is the right place to post.
I need some advice before I start buying parts.
I’ve just picked up a 2012 2wd diesel Asx it’s been driving great but it’s now gone limp with the eml on. Code says p1499 but the dpf light hasn’t come on is this normal? I’m thinking maybe temp sensor or could it be a clogged dpf without a dpf light?
Unable to clear the code with a scanner and just tried the old disconnect the battery for a few hours but that hasn’t worked either 🙈
Any help or guidance would be greatly appreciated.
I need some advice before I start buying parts.
I’ve just picked up a 2012 2wd diesel Asx it’s been driving great but it’s now gone limp with the eml on. Code says p1499 but the dpf light hasn’t come on is this normal? I’m thinking maybe temp sensor or could it be a clogged dpf without a dpf light?
Unable to clear the code with a scanner and just tried the old disconnect the battery for a few hours but that hasn’t worked either 🙈
Any help or guidance would be greatly appreciated.
Senior Member
Joined: May 2014
Posts: 206
From: Stockholm, Sweden
It is likely the temp. sensor or its cable. Note, there are 3 temp sensors on the DPF.
if you drive longer in limp mode, then DPF will miss re-generation and then you'll get DPF error codes and light (indication on the instrument panel). These DPF codes will be impossible to erase without MUT-3 tool. But even with MUT-3, if you miss regeneration, you will have to re-initiate DPF (aka you tell ECU that DPF was installed as new). If you miss regeneration (happens every 500-600km or when pressure diff across DPF is high) and then you go to service workshop for help, there is a 95% chances that they will tell you "a story" that DPF needs to be replaced and you have to pay $2000-$3000. That's how they fool customers with broken temperature sensor only. Note, that new temp. sensor will cost you $300-400 anyway (at least in Sweden it cost that much, but I bought used one for $40).
So, my advise is:
if you drive longer in limp mode, then DPF will miss re-generation and then you'll get DPF error codes and light (indication on the instrument panel). These DPF codes will be impossible to erase without MUT-3 tool. But even with MUT-3, if you miss regeneration, you will have to re-initiate DPF (aka you tell ECU that DPF was installed as new). If you miss regeneration (happens every 500-600km or when pressure diff across DPF is high) and then you go to service workshop for help, there is a 95% chances that they will tell you "a story" that DPF needs to be replaced and you have to pay $2000-$3000. That's how they fool customers with broken temperature sensor only. Note, that new temp. sensor will cost you $300-400 anyway (at least in Sweden it cost that much, but I bought used one for $40).
So, my advise is:
- do not start and do not drive that car
- fix temp sensor asap (determine which one is faulty, this is a simple resistance measurement)
- erase all codes
- start a forced DPF re-generation (conditions apply: engine must be warm and you have to drive at least 30min). For this you need MUT-3 tool and computer (cheap OBD2 units will not work)
- if DPF light (text indication) will appear then:
- re-initialize DPF (that will erase regeneration counter, but no problem)
- repeat 3.-4. above
Thread Starter
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Junior Member
Joined: May 2023
Posts: 2
Thank you so much, I’ve looked and it’s only showing one EGT sensor for it costing between £40 and £80 depending on supplier (I’m sure it would be 3 or 4 times that direct from Mitsubishi).
I’ll take your advice and not drive it until I pick up the sensor.
I’ll take your advice and not drive it until I pick up the sensor.
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