Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Start recognition function - GF07.13-P-3014G
ENGINE 104.941 /943 /944 /991 /994 as of 1.8.96 Start recognition via circuit 50
ENGINE 104.995 with CODE (494a) USA version with CODE (807) Model year 1997 with CODE (808) Model year 1998 with CODE (498) as of Model Year 97 Japanese version Start recognition via circuit 50
ENGINE 111.921 /942 as of 1.9.98, 111.946 as of 1.6.98, 111.944 /975 as of 1.8.96, 111.943 /947 /951 /952 /955 /956 /957 /958 /973 /982 /983 Start recognition via circuit 50
ENGINE 111.945 in MODEL 202.020 /080 as of 1.9.98, 208.335 /435 as of 1.6.98 Start recognition via circuit 50
ENGINE 111.974 with CODE (494a) USA version with CODE (807) Model year 1997 with CODE (808) Model year 1998 Start recognition via circuit 50
ENGINE 112.910 /911 /912 /913 /914 /916 /917 /920 /921 /922 /923 /940 /941 /942 /943 /944 /946 /947 /, 949 /953 /954 /955 /970 /972 /973 /50 /975 Start recognition via circuit 50
ENGINE 113.940 941 /942 /943 /948 /960 /961 /963 /965 /966 /967 /968 /969 Start recognition via circuit 50
ENGINE 137.970 Start recognition via circuit 50
Illustrates vehicle without EIS and without starter control
Function
The engine control unit is informed via the introduced starting procedure through "terminal 50". This is necessary in order, for example, to trigger the start quantity control, the starter control, the post-start enrichment and ignition timing when starting.
Vehicles with EIS without CAN
When the electronic ignition key is turned into the start position, the electronic ignition switch control unit (N73) supplies the CAN message "circuit 50".
Vehicles with EIS and CAN
When the electronic ignition key is turned into the start position, the electronic ignition switch (N73) control unit supplies the start signal circuit 50 to the engine control unit from the output pin B9. The output is short-circuit proof and can accept a maximum load of 250 mA.
Vehicles with ignition start switch
Circuit 50 of ignition/start switch is switched to the engine control unit.
| ME-SFI control unit position/task/design/ function | GF07.61-P-5000F | ||
| CAN databus, function | Vehicles with CAN | GF54.00-P-0005F | |
| Electronic ignition switch control unit, location/ task/design/function | Model 202 as of 6/97, 208, 210 as of 3/97, 210.081/281 | GF80.57-P-4102A | |
| Model 215, 220 | GF80.57-P-4102S | ||
| Model 203, 209 | GF80.57-P-4102PP |
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.