[toomuchtv]

I purchased a used 2018 in December 2020, I've got 33k miles now.

I've driven it out of town twice, round trip about 200 miles. Both times I've done this I get DTC P24B9 trouble code that pops up the next day.

P24B9 - EVAP System Leak Detection Pump Pressure Sensor Circuit Range/Performance

I took it to the dealer the first time and they claimed to have fixed it and claimed that RRT 18-054-17 REV. A does not apply. It just happened last weekend for the second time.

The first time, the dealer did the following:

• Updated PCM
• Updated PIM/HCP
• Updated ABS module
• Updated EBBM
• Updated BCM

I can't find any details about this DTC with web searching, searching the forum, and searching the Facebook group.

Does anyone have experience with this code? Anything I can provide the dealer to get it fixed? I don't want to deal with this code every time I drive the van on gas for more than a few miles.

 

[Waldo]

I purchased a used 2018 in December 2020, I've got 33k miles now.

I've driven it out of town twice, round trip about 200 miles. Both times I've done this I get DTC P24B9 trouble code that pops up the next day.

P24B9 - EVAP System Leak Detection Pump Pressure Sensor Circuit Range/Performance

I took it to the dealer the first time and they claimed to have fixed it and claimed that RRT 18-054-17 REV. A does not apply. It just happened last weekend for the second time.

The first time, the dealer did the following:

• Updated PCM
• Updated PIM/HCP
• Updated ABS module
• Updated EBBM
• Updated BCM

I can't find any details about this DTC with web searching, searching the forum, and searching the Facebook group.

Does anyone have experience with this code? Anything I can provide the dealer to get it fixed? I don't want to deal with this code every time I drive the van on gas for more than a few miles.

There is a possibility that code might be triggered by a gas cap seal, or other source of a leak stopping the fuel system from developing a negative pressure. Of course, the Pacifica does not have an actual replaceable gas cap, but there is a seal at the filler hole. It should be covered under the emissions system warranty.

 

[Rioseeker]

I purchased a used 2018 in December 2020, I've got 33k miles now.

I've driven it out of town twice, round trip about 200 miles. Both times I've done this I get DTC P24B9 trouble code that pops up the next day.

P24B9 - EVAP System Leak Detection Pump Pressure Sensor Circuit Range/Performance

I took it to the dealer the first time and they claimed to have fixed it and claimed that RRT 18-054-17 REV. A does not apply. It just happened last weekend for the second time.

The first time, the dealer did the following:

• Updated PCM
• Updated PIM/HCP
• Updated ABS module
• Updated EBBM
• Updated BCM

I can't find any details about this DTC with web searching, searching the forum, and searching the Facebook group.

Does anyone have experience with this code? Anything I can provide the dealer to get it fixed? I don't want to deal with this code every time I drive the van on gas for more than a few miles.

P24B9 means your fuel evaporative system OBD module rationality check is not okay. The module is located around carbon canister to run a system leakage diagnostic. Usually, this code could be caused by module damage or wiring harness connection issue...