Mercedes A1698201585 No pin out given in the Software

[Siman]

Hi
Could you please help me to find the pin out diagram to connect this via OBD. in CAN OBD it says you can clear this via OBD but no connection photos given.
Appreciate your help as this is an urgent request.
please see the photos attached.
many thanks

[AST_Support]

Take a photo of the PCB from both sides and post here.

[Siman]

Many thanks

[AST_Support]

Test this pinout.
Check with a multimeter that CAN2H connects to the CAN filter on the pcb.

[Siman]

Tried connecting as above picture, no answer from airbag, not sure if CAN2H is correct and dont know how to check CAN Filter.
could you help

[AST_Support]

CAN2H should be one of this pins.

[Siman]

Thanks for this, It did work for DTC but failed to read the eeprom. please see below.
Mercedes A TRW A1698201585
--------------------------------------------------------
Enable 12V on Extended Connector... ok
External power +11.54V
Connecting... ok
Read ECU Delivery Assembly Number... 1698201585
Read Errors...
906C:60 - Unknown Error
9007:60 - THE COMPONENT OR THE SIGNAL LINE TO THE COMPONENT S68/3 (DRIVER-SIDE SEAT BELT BUCKLE RESTRAINT SYSTEMS SWITCH) HAS SHORT CIRCUIT TO POSITIVE OR OPEN CIRCUIT
900B:60 - THE COMPONENT OR THE SIGNAL LINE TO THE COMPONENT S68/4 (PASSENGER-SIDE SEAT BELT BUCKLE RESTRAINT SYSTEMS SWITCH) HAS SHORT CIRCUIT TO POSITIVE OR OPEN CIRCUIT
900F:60 - INCORRECT SENSOR TYPE A53 (DRIVER SIDE AIRBAG SENSOR) FITTED
9010
9015:60 - INCORRECT SENSOR TYPE A54 (FRONT PASSENGER SIDE AIRBAG SENSOR) FITTED
9016
9022:60 - FAULT IN COMMUNICATION WITH COMPONENT B48 (FRONT PASSENGER SEAT OCCUPIED AND CHILD SEAT RECOGNITION) OR THERE IS A CABLE FAULT
9103:60 - THE RESISTANCE VALUE IN THE IGNITION CIRCUIT CONTAINING COMPONENT R12/13 (DRIVER AIRBAG IGNITION SQUIB 1) IS TOO HIGH
9143:60 - THE RESISTANCE VALUE IN THE IGNITION CIRCUIT CONTAINING COMPONENT R12/4 (FRONT PASSENGER AIRBAG IGNITION SQUIB 1) IS TOO HIGH
9123:60 - THE RESISTANCE VALUE IN THE IGNITION CIRCUIT CONTAINING COMPONENT R12/14 (DRIVER AIRBAG IGNITION SQUIB 2) IS TOO HIGH
9163:60 - THE RESISTANCE VALUE IN THE IGNITION CIRCUIT CONTAINING COMPONENT R12/5 (FRONT PASSENGER AIRBAG IGNITION SQUIB 2) IS TOO HIGH
9183:60 - THE RESISTANCE VALUE IN THE IGNITION CIRCUIT CONTAINING COMPONENT R12/1 (DRIVER ETR IGNITION SQUIB) IS TOO HIGH
91A3:60 - THE RESISTANCE VALUE IN THE IGNITION CIRCUIT CONTAINING COMPONENT R12/2 (FRONT PASSENGER ETR IGNITION SQUIB) IS TOO HIGH
9223:60 - THE RESISTANCE VALUE IN THE IGNITION CIRCUIT CONTAINING COMPONENT R12/9 (DRIVER-SIDE AIRBAG IGNITION SQUIB) IS TOO HIGH
9243:60 - THE RESISTANCE VALUE IN THE IGNITION CIRCUIT CONTAINING COMPONENT R12/10 (FRONT PASSENGER SIDE AIRBAG IGNITION SQUIB) IS TOO HIGH
9203:60 - THE RESISTANCE VALUE IN THE IGNITION CIRCUIT CONTAINING COMPONENT R12/7 (RIGHT REAR ETR IGNITION SQUIB) IS TOO HIGH
91C3:60 - THE RESISTANCE VALUE IN THE IGNITION CIRCUIT CONTAINING COMPONENT R12/6 (LEFT REAR ETR IGNITION SQUIB) IS TOO HIGH
92A3:60 - THE RESISTANCE VALUE IN THE IGNITION CIRCUIT CONTAINING COMPONENT R12/22 (LEFT REAR WINDOW AIRBAG IGNITION SQUIB) IS TOO HIGH
92C3:60 - THE RESISTANCE VALUE IN THE IGNITION CIRCUIT CONTAINING COMPONENT R12/23 (RIGHT REAR WINDOW AIRBAG IGNITION SQUIB) IS TOO HIGH
9111:40 - Unknown Error

--------------------------------------------------------
Enable 12V on Extended Connector... ok
External power +11.55V
Connect...
failed, can not connect to SRS

[AST_Support]

What pinout are you use?
EEPROM reading will not work for this SRS ECU.

[Siman]

I used 3rd pin from the bottom left side. please see highlighted one.
I will try to read the eeprom manually and send to you for clear it . thanks

[AST_Support]

Can you test this pinout with 1 power supply pin.

[Siman]

Tried it but still the same error, cannot read eeprom. however I have read the eeprom manually, could you please check if you could clear this file. just to let you know customer said no crash happened and airbag light just came on for no reason with bellow code
9111 - control unit N2/7 (restraint system control module) is faulty

thanks

[AST_Support]

Test this worked file from another car, pass PM.
Please test this last pinout.

[AST_Support]

Press Clear Errors after any operation.

[Siman]

I did write and below is the DTC after write, I can see 9111 error code stil at the bottom, although its not a crash entry, Any idea.

Mercedes A TRW A1698201585
--------------------------------------------------------
Enable 12V on Extended Connector... ok
External power +11.54V
Connecting... ok
Read ECU Delivery Assembly Number... 1698201585
Read Errors...
906B:60 - Unknown Error
906C:60 - Unknown Error
9007:60 - THE COMPONENT OR THE SIGNAL LINE TO THE COMPONENT S68/3 (DRIVER-SIDE SEAT BELT BUCKLE RESTRAINT SYSTEMS SWITCH) HAS SHORT CIRCUIT TO POSITIVE OR OPEN CIRCUIT
900B:60 - THE COMPONENT OR THE SIGNAL LINE TO THE COMPONENT S68/4 (PASSENGER-SIDE SEAT BELT BUCKLE RESTRAINT SYSTEMS SWITCH) HAS SHORT CIRCUIT TO POSITIVE OR OPEN CIRCUIT
900F:60 - INCORRECT SENSOR TYPE A53 (DRIVER SIDE AIRBAG SENSOR) FITTED
9010
9015:60 - INCORRECT SENSOR TYPE A54 (FRONT PASSENGER SIDE AIRBAG SENSOR) FITTED
9016
9022:60 - FAULT IN COMMUNICATION WITH COMPONENT B48 (FRONT PASSENGER SEAT OCCUPIED AND CHILD SEAT RECOGNITION) OR THERE IS A CABLE FAULT
9103:60 - THE RESISTANCE VALUE IN THE IGNITION CIRCUIT CONTAINING COMPONENT R12/13 (DRIVER AIRBAG IGNITION SQUIB 1) IS TOO HIGH
9143:60 - THE RESISTANCE VALUE IN THE IGNITION CIRCUIT CONTAINING COMPONENT R12/4 (FRONT PASSENGER AIRBAG IGNITION SQUIB 1) IS TOO HIGH
9123:60 - THE RESISTANCE VALUE IN THE IGNITION CIRCUIT CONTAINING COMPONENT R12/14 (DRIVER AIRBAG IGNITION SQUIB 2) IS TOO HIGH
9163:60 - THE RESISTANCE VALUE IN THE IGNITION CIRCUIT CONTAINING COMPONENT R12/5 (FRONT PASSENGER AIRBAG IGNITION SQUIB 2) IS TOO HIGH
9183:60 - THE RESISTANCE VALUE IN THE IGNITION CIRCUIT CONTAINING COMPONENT R12/1 (DRIVER ETR IGNITION SQUIB) IS TOO HIGH
91A3:60 - THE RESISTANCE VALUE IN THE IGNITION CIRCUIT CONTAINING COMPONENT R12/2 (FRONT PASSENGER ETR IGNITION SQUIB) IS TOO HIGH
9223:60 - THE RESISTANCE VALUE IN THE IGNITION CIRCUIT CONTAINING COMPONENT R12/9 (DRIVER-SIDE AIRBAG IGNITION SQUIB) IS TOO HIGH
9243:60 - THE RESISTANCE VALUE IN THE IGNITION CIRCUIT CONTAINING COMPONENT R12/10 (FRONT PASSENGER SIDE AIRBAG IGNITION SQUIB) IS TOO HIGH
9203:60 - THE RESISTANCE VALUE IN THE IGNITION CIRCUIT CONTAINING COMPONENT R12/7 (RIGHT REAR ETR IGNITION SQUIB) IS TOO HIGH
91C3:60 - THE RESISTANCE VALUE IN THE IGNITION CIRCUIT CONTAINING COMPONENT R12/6 (LEFT REAR ETR IGNITION SQUIB) IS TOO HIGH
92A3:60 - THE RESISTANCE VALUE IN THE IGNITION CIRCUIT CONTAINING COMPONENT R12/22 (LEFT REAR WINDOW AIRBAG IGNITION SQUIB) IS TOO HIGH
92C3:60 - THE RESISTANCE VALUE IN THE IGNITION CIRCUIT CONTAINING COMPONENT R12/23 (RIGHT REAR WINDOW AIRBAG IGNITION SQUIB) IS TOO HIGH
9111:40 - Unknown Error

[AST_Support]

Press Clear Errors button.