U20BF - B3F04 -SUZUKI FORENZA 07 - 2 DTC THAT I CAN NOT FIND THE ANSWER

Question

Hello,

I have 2 codes, where I can not find the answer in any please, the DTC reader says:
"REFER TO THE MANUAL"

The specific vehicle is: Suzuki Forenza 2007, Automatic Transmition, USA version, the specific codes are from the engine:

U20BF: Refer to the manual.

B3F04: Refer to the manual.

The check engine light is "ON".

I really apreciate if could give me clue about these DTC.

Best regards,

Answer 1

U20BF this is a error code of the scan tool B3F04 is for the PRNDL, what you need is the "P" code.

Comments

Hello Reynaldo,

Thank you for your pretty fast answer!

In fact I got many codes from this vehicle:

ENGINE:

PO455, B3F04 , U20BF

TRANSMISSION:

PO703, PO705, P1791, PO700.

According to your answer, what do you think, I should fix in order to repair this vehicle?

Vehicucle details:

Make: Suzuki / Model: Forenza / Year: 2007 / Engine: 2.0 / Transmission: Automatic

Thank you in advanced of your answer!

Best regards,

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P0700 Transmission malfunction detected,P0703 Brake switch malfunction,P0705 PRNDL switch malfunction,P1791  Throttle position input signal circuit malfunction, There is only 2 codes that are causing your condition P0703 which is the brake light switch, the ECM,TCM uses this for TCC operation , even if the brake lights do work the TCM does not see it, P1791 is the cause of the rest of the code, without this signal the TCM does not know what gear it is in especially when its in drive this causes the TPS to code up. Replace the PRNDL, and before you do the brake light switch check to make sure the 3rd eye brake light is functional.

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Thank you very much Reynaldo! Now I have an idea about how to fix this vehicle!!
I appreciate your help!!
Best regards,