Volvo V60 P3 (2016) – Airbag Control Module, Wiring Harness and Programming
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Hello,
I own a 2016 Volvo V60 P3 with the D4204T9 engine.
I am experiencing problems with the SRS/airbag system. The SRS control module (part number 31429515) has already been repaired, and communication with the module has been restored.
However, several fault codes remain relating to airbag and seatbelt pretensioner circuits, as well as a low supply voltage fault.
I am looking for a workshop experienced in Volvo vehicle electronics, VIDA diagnostics, and troubleshooting the complete SRS wiring harness, including connectors and wiring connections.
Could you please let me know if you can carry out a complete diagnosis and repair of this system?
Thank you in advance. I look forward to your reply.
YV1FW79C0G1293851
V60 2016 D4204T9SRS-B00011B Driver Frontal Stage 1 Deployment Control . General Electrical Failures. Circuit resistance above threshold.
SRS-B00021B Driver Frontal Stage 2 Deployment Control . General Electrical Failures. Circuit resistance above threshold.
SRS-B00201B Left Side Airbag Deployment Control . General Electrical Failures. Circuit resistance above threshold.
SRS-B00701B Driver Seatbelt Pretensioner "A" Deployment Control. General Electrical Failures. Circuit resistance above
threshold.
SRS-B00751B Second Row Right Seatbelt Pretensioner Deployment Control. General Electrical Failures. Circuit resistance
above threshold.
SRS-B00791B Driver Seatbelt Pretensioner "B" Deployment Control. General Electrical Failures. Circuit resistance above
threshold.
SRS-B00821B Passenger Seatbelt Load Limiter Deployment Control . General Electrical Failures. Circuit resistance above
threshold.
SRS-U300716 Control Module Input Power ""B"". General Electrical Failures. Circuit voltage below threshold.
ECU HW NUM. SW1 NUM. SW2 NUM. SW3 NUM. SW4 NUM. SERIAL NUM.
CEM 31412970 31473277 151620156
DIM 31394183 31453350 259369
ECM 31452623 32312275 151589
TCM 31397853 31657369 31397367 151500186
BCM 31423348 31471025 75208282
DDM 31376697 31456696 9643996
PDM 31376699 31456697 9678987
CCM 31398141 31443711 2001589396
SAS 31313851 31334561 150616074801
PSCM 31429806 31451855 152300073781
SRS 31429515 31451753 11506080207
PBM 31275180 31381846 31318974 100000642894
PAC 31381885 31439214 1500545364
PAM 31423951 31423747 151620265700
CVM 31318801 31360340 31340742 215061001473
IHU 31433368 31466587 31466588 31421470 31382708 56150790 -
@Usturmaca you should adress SRS-U300716 first. All other errors are most probably follow up errors because of low voltage.
Check fuse 18 behind the glove box.
Also check the continuity between that fuse and pin 43 (red/green cable) at the SRS module connector.
Also take a really close look at the connectors and pins at the SRS module for bent pins and loose connections.
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@T5-T6-Schnappi I have one more question: Is the connector shown in this picture the large one or the small one? Also, could you please tell me the part numbers of the two connectors that plug into the SRS airbag control module?
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@Usturmaca the picture is the smaller connector (C2).
Identifying the part numbers is super confusing as the connectors are made of several separate parts. If you're willing to try identifying the numbers, you can take a look here The big connector is called "4/9 C1" and has a 50 and 25 pole connector in it's housing. The small connector is called "4/9 C2" and consists of two 26 pole connectors in one housing. The terminals are "Type C" , but I can't tell you which ones exactly.Always disconnect the battery and wait for at least 15 minutes before you are working on the SRS system, and never use a multimeter/Ohmmeter on any detonator circuit when the detonator is still connected!
As additional information. The SRS module has two 12V inputs. One from fuse 18 (SRS/OWS) behind the glove box (pin 43 on the SRS) "Circuit B", and one from fuse 20 (ECM/TCM/SRS) in the engine compartment (pin 42 on the SRS) "Circuit A".
Do you have any U-codes in other modules or just SRS-codes?
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I would like to briefly explain the situation.
I live in Germany, and this is my personal vehicle, which I use myself.
One day, the car displayed a “Battery Low” warning, followed by several other warning messages related to the ESC, airbag system, and seat belts. I immediately went to have the battery replaced.
After installing the new battery, the workshop told me that they were unable to clear the fault codes and that I needed to take the car to a Volvo dealership. So I took my vehicle to Volvo.
My car stayed at the Volvo dealership for approximately 10 days. After that, they called me and said they had still not been able to identify the problem and would need more time to continue diagnosing it. They also informed me that the costs had already reached €400 and asked whether I wanted them to continue. I decided not to proceed.
Afterwards, I removed the SRS control module myself. I found someone in Berlin who repairs these units and sent it to him.
Before the repair, none of the diagnostic software could communicate with the SRS module. In VIDAsh, the module was showing in red.
The module was repaired and sent back to me. I reinstalled it and connected the diagnostic software. However, when I tried to clear the fault codes using VDASH, they would not disappear.
I then performed an SRS Crash Mode reset and selected the option to clear the DTCs. Most of the fault codes disappeared, but one remained. It was related to the resistance in the right front passenger seat belt.
I then removed the pins from the SRS module connector again to check the connections and measure the resistance. However, during this process, I may have accidentally damaged or disturbed some of the pin connections.
After reconnecting everything, even more fault codes appeared, and I started getting the errors I am currently experiencing.
Unfortunately, I have not been able to find anyone in Germany who is willing to properly investigate and work on this issue. Nobody seems interested in dealing with it.
I would really appreciate it if someone could help me diagnose and resolve this problem. Thank you very much for your time and support.
