Cel light came on - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Gords_zenith · 06-18-2013, 01:41 PM

Hey, so I was filling up the other day and restarted my car and the cel light came on. So I scanned the code with the dash command app and the BT1 Bluetooth OBD plug in, and it said the code was for Communication module BUS A, so I cleared it and it hasn't come back since, but I'm wondering does anyone know what that is?

Trashed675 · 06-18-2013, 01:46 PM

Quote:

Originally Posted by Gords_zenith

Hey, so I was filling up the other day and restarted my car and the cel light came on. So I scanned the code with the dash command app and the BT1 Bluetooth OBD plug in, and it said the code was for Communication module BUS A, so I cleared it and it hasn't come back since, but I'm wondering does anyone know what that is?

Since you were just getting fuel, I would suggest checking your filler cap. If its not all the way screwed tight it will throw a CEL.

Dezoris · 06-18-2013, 01:46 PM

Quote:

Originally Posted by Gords_zenith

Hey, so I was filling up the other day and restarted my car and the cel light came on. So I scanned the code with the dash command app and the BT1 Bluetooth OBD plug in, and it said the code was for Communication module BUS A, so I cleared it and it hasn't come back since, but I'm wondering does anyone know what that is?

Do you always have a BT OBD2 adapter plugged into the port?

Gords_zenith · 06-18-2013, 07:53 PM

Quote:

Originally Posted by Trashed675

Since you were just getting fuel, I would suggest checking your filler cap. If its not all the way screwed tight it will throw a CEL.

Ya that wasn't it as I was 100% sure that I had screwed it back on tight, and it wasn't an Evap code or anything like that. Just struck me as odd, hasn't showed back up since though.

Gords_zenith · 06-18-2013, 07:54 PM

Quote:

Originally Posted by Dezoris

Do you always have a BT OBD2 adapter plugged into the port?

Yeah, drove to Florida and back 4200+KM two months ago with it plugged in-no issues at all.

Dezoris · 06-19-2013, 12:26 AM

Com errors like that are common with BT adapters with software running/connected when the vehicle starts. If it is a U coded CEL thats more than likely what it is.

Gords_zenith · 06-19-2013, 02:11 PM

Quote:

Originally Posted by Dezoris

Com errors like that are common with BT adapters with software running/connected when the vehicle starts. If it is a U coded CEL thats more than likely what it is.

Thanks, but what do you mean U coded?

Dezoris · 06-19-2013, 02:40 PM

There are various CELs you need the number code something like:

U0073

Anything with a U when you first start it is usually related to the ODB2 adapter running in a state it shouldnt be.

06-18-2013, 01:41 PM	#1
Gords_zenith Senior Member Join Date: Nov 2012 Drives: WRB BRZ Sport Tech Location: Durham, Canada Posts: 354 Thanks: 178 Thanked 110 Times in 64 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	Cel light came on Hey, so I was filling up the other day and restarted my car and the cel light came on. So I scanned the code with the dash command app and the BT1 Bluetooth OBD plug in, and it said the code was for Communication module BUS A, so I cleared it and it hasn't come back since, but I'm wondering does anyone know what that is?

06-19-2013, 12:26 AM	#6
Dezoris Senior Member Join Date: Aug 2012 Drives: FR-S Location: IL Posts: 2,857 Thanks: 519 Thanked 2,998 Times in 1,095 Posts Mentioned: 159 Post(s) Tagged: 1 Thread(s)	Com errors like that are common with BT adapters with software running/connected when the vehicle starts. If it is a U coded CEL thats more than likely what it is. __________________ SAVAGEGEESE

06-19-2013, 02:40 PM	#8
Dezoris Senior Member Join Date: Aug 2012 Drives: FR-S Location: IL Posts: 2,857 Thanks: 519 Thanked 2,998 Times in 1,095 Posts Mentioned: 159 Post(s) Tagged: 1 Thread(s)	There are various CELs you need the number code something like: U0073 Anything with a U when you first start it is usually related to the ODB2 adapter running in a state it shouldnt be. __________________ SAVAGEGEESE

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