DB9 vacuum & leak detection pump
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From: Brentwood,TN
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DB9 vacuum & leak detection pump
09 DB9 is throwing a check engine light, used a cheap obdII scanner and got the codes.
P240B Evaporative Emission System Leak Detection Pump Heater Control Circuit Low
Evaporative Emission System Leak Detection Pump Heater Control Circuit Low
Read more: https://www.autocodes.com/p240b.html
P2419 Evaporative Emission System Switching Valve Control circuit low (#8 Vacuum pump(vacuum distribution photo))
Evaporative Emission System Switching Valve Control Circuit Low
Read more: https://www.autocodes.com/p2419_toyota.html
Evaporative Emission System Switching Valve Control Circuit Low
Read more: https://www.autocodes.com/p2419_toyota.html
Evaporative Emission System Switching Valve Control Circuit Low
Read more: https://www.autocodes.com/p2419_toyota.html
Evaporative Emission System Switching Valve Control Circuit Low
Read more: https://www.autocodes.com/p2419_toyota.html
I checked the codes and two things come up, Vacuum pump module & leak detection pump.
One seems to point to the small vacuum pump next to the charcoal canister but the second the detection pump im puzzled about since the only reference ive found regarding this is part#6H52-9C111-BA, anyone know where this part is located?
P240B Evaporative Emission System Leak Detection Pump Heater Control Circuit Low
Evaporative Emission System Leak Detection Pump Heater Control Circuit Low
Read more: https://www.autocodes.com/p240b.html
P2419 Evaporative Emission System Switching Valve Control circuit low (#8 Vacuum pump(vacuum distribution photo))
Evaporative Emission System Switching Valve Control Circuit Low
Read more: https://www.autocodes.com/p2419_toyota.html
Evaporative Emission System Switching Valve Control Circuit Low
Read more: https://www.autocodes.com/p2419_toyota.html
Evaporative Emission System Switching Valve Control Circuit Low
Read more: https://www.autocodes.com/p2419_toyota.html
Evaporative Emission System Switching Valve Control Circuit Low
Read more: https://www.autocodes.com/p2419_toyota.html
I checked the codes and two things come up, Vacuum pump module & leak detection pump.
One seems to point to the small vacuum pump next to the charcoal canister but the second the detection pump im puzzled about since the only reference ive found regarding this is part#6H52-9C111-BA, anyone know where this part is located?
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From: Brentwood,TN
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yes the second pic #8 is the vacuum pump. The first picture has a part# for a detection pump but it doesnt actually show a photo of the part
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The vacuum pump (#8) is for the exhaust bypass valves and is not a part of the EVAP system. First thing I would do is smoke test the system for a leak. Find a local shop with a smoke test machine. If you test it and no leaks are found, the DMTL pump (#7 in top picture) may have failed.
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Joined: Aug 2013
Posts: 507
From: Ocala, fl
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You can also make smoke detection machine at home very cheap
Parts can be bought from Home Depot.
Google DIY SMOKE LEAK DETECTION
I think I have posted it somewhere but that pump is same what's used in BMW and based on that part you can find one on eBay really cheap like 50-60 buck or so (that's DMTL PYMP)
I had similar code and I trie d swapping that pump to see if it will fix the problem. In my case I had taken apart quite a bit of car while I was wrapping the car with vinyl.
It was my mistake one of the power cable plug I had disconnected and did not reconnect properly that's why I had error. Hope you checked fuses already.
Parts can be bought from Home Depot.
Google DIY SMOKE LEAK DETECTION
I think I have posted it somewhere but that pump is same what's used in BMW and based on that part you can find one on eBay really cheap like 50-60 buck or so (that's DMTL PYMP)
I had similar code and I trie d swapping that pump to see if it will fix the problem. In my case I had taken apart quite a bit of car while I was wrapping the car with vinyl.
It was my mistake one of the power cable plug I had disconnected and did not reconnect properly that's why I had error. Hope you checked fuses already.
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From: British Columbia
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The code given is for a circuit issue and not an actual evap leak. You either have an issue with the ECU or wiring or DMTL Pump.
The ecu is doing a check of the circuit and failing it's resistance/current check test. So first would be to verify the wiring is good and not just looking at it, disconnect both ends and pass a load through the wire to power up something like a dual element bulb..if it can support the dual element bulb, it'll support the bulb and not act like a fusible link.
If wiring is good, you will need to manual power up the DMTL pump, heater, valve. Making sure every internal circuit is good..also do ohms law and make sure nothing appears of high current for what it actually is. If the pump is figured to draw 20amps, aka you found the problem with ohms law. If the last few steps make you feel WTF!? Then the dealer might be your friend because the next step is diagnosing the secondary ecu if nothing has been found of concern.
The ecu is doing a check of the circuit and failing it's resistance/current check test. So first would be to verify the wiring is good and not just looking at it, disconnect both ends and pass a load through the wire to power up something like a dual element bulb..if it can support the dual element bulb, it'll support the bulb and not act like a fusible link.
If wiring is good, you will need to manual power up the DMTL pump, heater, valve. Making sure every internal circuit is good..also do ohms law and make sure nothing appears of high current for what it actually is. If the pump is figured to draw 20amps, aka you found the problem with ohms law. If the last few steps make you feel WTF!? Then the dealer might be your friend because the next step is diagnosing the secondary ecu if nothing has been found of concern.
Thread Starter
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Registered User
Joined: Dec 2013
Posts: 9
From: Brentwood,TN
Rep Power: 0
The vacuum pump (#8) is for the exhaust bypass valves and is not a part of the EVAP system. First thing I would do is smoke test the system for a leak. Find a local shop with a smoke test machine. If you test it and no leaks are found, the DMTL pump (#7 in top picture) may have failed.
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Thread Starter
|
Registered User
Joined: Dec 2013
Posts: 9
From: Brentwood,TN
Rep Power: 0
You can also make smoke detection machine at home very cheap
Parts can be bought from Home Depot.
Google DIY SMOKE LEAK DETECTION
I think I have posted it somewhere but that pump is same what's used in BMW and based on that part you can find one on eBay really cheap like 50-60 buck or so (that's DMTL PYMP)
I had similar code and I trie d swapping that pump to see if it will fix the problem. In my case I had taken apart quite a bit of car while I was wrapping the car with vinyl.
It was my mistake one of the power cable plug I had disconnected and did not reconnect properly that's why I had error. Hope you checked fuses already.
Parts can be bought from Home Depot.
Google DIY SMOKE LEAK DETECTION
I think I have posted it somewhere but that pump is same what's used in BMW and based on that part you can find one on eBay really cheap like 50-60 buck or so (that's DMTL PYMP)
I had similar code and I trie d swapping that pump to see if it will fix the problem. In my case I had taken apart quite a bit of car while I was wrapping the car with vinyl.
It was my mistake one of the power cable plug I had disconnected and did not reconnect properly that's why I had error. Hope you checked fuses already.
The code given is for a circuit issue and not an actual evap leak. You either have an issue with the ECU or wiring or DMTL Pump.
The ecu is doing a check of the circuit and failing it's resistance/current check test. So first would be to verify the wiring is good and not just looking at it, disconnect both ends and pass a load through the wire to power up something like a dual element bulb..if it can support the dual element bulb, it'll support the bulb and not act like a fusible link.
If wiring is good, you will need to manual power up the DMTL pump, heater, valve. Making sure every internal circuit is good..also do ohms law and make sure nothing appears of high current for what it actually is. If the pump is figured to draw 20amps, aka you found the problem with ohms law. If the last few steps make you feel WTF!? Then the dealer might be your friend because the next step is diagnosing the secondary ecu if nothing has been found of concern.
The ecu is doing a check of the circuit and failing it's resistance/current check test. So first would be to verify the wiring is good and not just looking at it, disconnect both ends and pass a load through the wire to power up something like a dual element bulb..if it can support the dual element bulb, it'll support the bulb and not act like a fusible link.
If wiring is good, you will need to manual power up the DMTL pump, heater, valve. Making sure every internal circuit is good..also do ohms law and make sure nothing appears of high current for what it actually is. If the pump is figured to draw 20amps, aka you found the problem with ohms law. If the last few steps make you feel WTF!? Then the dealer might be your friend because the next step is diagnosing the secondary ecu if nothing has been found of concern.
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Registered User
Joined: Dec 2013
Posts: 9
From: Brentwood,TN
Rep Power: 0
Update, Swapped a DMTL from a e46 bmw in, had same problem. had a buddy at AM scan it, turned out pretty much everything in the rear had low voltage issues.
Culprit turned out to be the two plugs for the rear harness in the passenger wheel well. the clips had disappeared and plugs were loose.
Culprit turned out to be the two plugs for the rear harness in the passenger wheel well. the clips had disappeared and plugs were loose.