Brake Assist (BAS) diagnosis - troubleshooting - AD42.31-P-5000A
MODEL 129
MODEL 140
MODEL 170
MODEL 202 except CODE (472a) Electronic Stability Program (ESP)
MODEL 208 except CODE (472a) Electronic Stability Program (ESP)
MODEL 210
MODEL 210 with ENGINES 112, 113, 606 except CODE (472a) Electronic Stability Program (ESP)
| Brake Assist (BAS) diagnosis, advanced information | AD00.00-P-1000AZ | ||
| Connection and use of test equipment | AD42.31-P-2000A | ||
| Troubleshooting | |||
| Complaint | Possible cause | Notes | Remedy/Test step |
| BAS/ESP (A1e47), BAS/ASR (A1e48) or BAS/ ETS (A1e49) malfunction indicator lamp illuminated with engine running | BAS, diagnosis, fault memory AD42.31-P-4000A |
||
| BAS/ESP (A1e47), BAS/ASR (A1e48) or BAS/ ETS (A1e49) malfunction indicator lamp comes on while driving and does not go out again | BAS, diagnosis, fault memory AD42.31-P-4000A |
||
| BAS/ESP (A1e47), BAS/ASR (A1e48) or BAS/ ETS (A1e49) malfunction indicator lamp comes on while driving and goes out again | On-board voltage <11V, too many electric consumers in operation ↓ | BAS, diagnosis, fault memory AD42.31-P-4000A |
|
| Prerequisites for generator testing | Engines 103, 104, 112, 113, 119 in model 129 Engines 111.977, 112.942, 113.942, 612.963 in model 163 Engines 166.940/960, 669.940/941 in model 168 Engines 111.9443/946/973 in model 170 Engines 104.941, 111.920/921/941/944/ 945/961/974/975, 605.910/960 in model 202 Engines 111.944/945/975, 112.940 in model 208 Engines 104.945/995, 112.942/947/970, 112.911/921/941, 113.940, 119.985, 602.982,604.912/917, 605.912/962, 606.912/962, 611.961, 612.961, 613.961 in model 210 |
AR15.40-P-5009EA | |
| Test the charge voltage of the generator | Engines 112.912/943, 113.961 in model 129 Engine 111.977, 112.942, 113.942, 612.963 in model 163 Engines 166.940/960, 668.940/941 in model 168 Engines 111.943/946/973 in model 170 Engines 104.941, 111.920/921/941/944/945/9 61/974/975, 601.913, 604.910/915, 605.910/960 in model 202 Engines 111.944/945/975, 112.940 in model 208 Engines 104.945/995, 111.942/947/970, 112.911/921/941, 113.940, 119.985, 602.982, 604.912/917, 605.912/962, 606.912/962, 612.961, 613.961 in model 210 |
AR15.40-P-5011EA | |
| Test generator with a regulator in the vehicle | Model 140 | ra15001405010x | |
| Test the control voltage of the generator. | Engines 103, 104, 112, 113, 119, 120 in model 129 Engines 111.977, 112.942, 113.942, 612.963 in model 163 Engines 166.940/960/990, 668.940/941 in model 168 Engines 111.943/946/973 in model 170 Engines 104.941, 111.920/921/941/944/945/9 61/974/975, 601.913, 604.910,915, 605.910/960 in model 202 Engines 111.944/945/975, 112.940 in model 208 Engines 104.945/995, 111.942,947,970, 112.911/921/941, 113.940, 119.985, 602.982, 604.912/917, 605.912/962, 606.912/962, 612.961, 613.961 in model 210 |
AR15.40-P-5010EA | |
| Brake pad wear indicator lamp (A1e6), low brake fluid level/parking brake indicator lamp (A1e7), ASR warning lamp (A1e21), ESP warning lamp (A1e41), ABS malfunction indicator lamp (A1e17), BAS/ETS (A1e49), BAS/ASR (A1e48) or BAS/ESP (A1e47) do not come on when ignition is turned on | CAN data cable | Read out the fault memory using the Hand-Held Tester | |
| BAS responds too early or too late | The parameters do not correspond with the engine control unit | Using the Hand-Held Tester read out the BAS parameters, code the engine control unit AD42.31-P-2000-04A |
|
| Fault code "C 1 025 CAN-communication with the traction system control unit disrupted, no brake light switch CAN signal, no wheel revs CAN signal" is shown in the fault memory, although there are no BAS customer complaints. BAS indicator lamps do not come on either | If the Hand-Held Tester is used to enter one of the ABS, ETS, ASR or ESP systems, the fault code C 1 025 can be deleted from the BAS | Delete the fault code. No further diagnosis is necessary |