Motor Vehicle Maintenance & Repair Asked on February 26, 2021
I scanned a VW Golf TDI 2015 using a scantool (at a workshop) and it gave the following 2 codes –
Engine module: P0103 – Mass Air Flow (MAF) (G70): Signal too High
Instrument cluster module: B103E – Fuel Level Sensor 1: Short to Plus
Then I hooked my laptop (PuTTY and elm327) to read the raw data and got the following data –
For engine: Sent: 19 02 04 Reply: 7E8075902FF001CA4AF
For Instrument cluster: Sent: 19 02 04 Reply: 77E07590299903E1208
Can someone please help me find out how can I arrive to the fault codes from the corresponding raw data. I can find out the faults myself instead of going to the workshop.
77E07590299903E1208 it`s 77E - adress ecu | 07 - number of bytes | 59 - positive answer from ecu | 02 -reportDTCbyStatusMask 99 upper bytes from ISO 14229
90 3E 12 - need to divide byte 90 how to "9" and "0", after "9" will change to "B1" and result: B103E 12 ,
also you can find how 903E12xh -- 9453074 number of DTC in list VAG.
08 - Status Mask describe in to ISO 14229
Answered by user51058 on February 26, 2021
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