Airbag (AB) diagnosis fault memory - AD91.60-P-4000A
MODEL 124.### (except 124.230 /290 /226 /393 /330) 1# as of 1.7.93 except CODE (291b) Airbag for driver and front passenger (for front passenger only if driver s airbag standard) except CODE (491) U.S. version
MODEL 129 as of 1.7.93
MODEL 140 as of 1.7.93
MODEL 202 as of 1.7.93
MODEL 170
MODEL 208
MODEL 210 up to 31.5.98
MODEL 210 as of 1.6.98 up to 30.6.99 except CODE (290) Windowbag except CODE (293) Left and right rear sidebag except CODE (491) U.S. version except CODE (498) Japanese version
| Risk of injury during test and repair work on airbag units or emergency tensioning retractor units | Store airbag units with the outlet area upwards and do not expose to temperatures above 100°C. Interrupt the power supply when working on these units. | AS91.00-Z-0001-01A | ||
| For retrofitted components the cables must only be routed at a distance from the sensor cables. | ||||
| As of 07/93 the fault memory can only be read out and erased using the Hand-Held Tester (HHT) | ||||
| Airbag, diagnosis, previous knowledge | AD91.60-P-2000A | |||
| Note, diagnosis, fault memory, airbag | AD91.60-P-2000-05A | |||
| Note on fault frequency, operating time | AD91.60-P-2000-13A | |||
| a | Fuses in order | |||
| b | Battery voltage 11-14 V | |||
| c | Airbag indicator and warning lamp SRS (A1e15) illuminates in instrument cluster | |||
| d | Connect Hand-Held-Tester (HHT), read or fault memory | AD00.00-P-2000-03A | ||
| e | Determine the MB number of the airbag control module using the Hand-Held-Tester | |||
| Fault memory | ||||
| Fault code1 | Fault code 2 | Fault text | Possible cause / Note | Remedy |
| 001 | 001 | ETR control module with airbag (N2/2) | Control module emergency tensioning retractor with airbag test electrics airbag (AB) | |
| 002 | 004 | Driver airbag squib (R12/3) | Ignition circuit driver airbag test electrics airbag (AB) Ignition circuit driver airbag test electrics airbag (ABf) |
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| 003 | 005 | Driver ETR squib (R12/1) | Ignition circuit driver emergency tensioning retractor test electrics airbag (ABf) Ignition circuit driver emergency tensioning retractor test electrics airbag (AB) |
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| 004 | 006 | Front passenger ETR squib (R12/2) | Ignition circuit front passenger emergency tensioning retractor test electrics airbag (AB) Ignition circuit front passenger emergency tensioning retractor test electrics airbag (AB) |
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| 005 | 007 | Front passenger AB squib (R12/8) | Ignition circuit front passenger airbag test electrics airbag (AB) Ignition circuit front passenger airbag test electrics airbag (AB) |
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| 008 | Driver side airbag squib (R12/9) | Ignition circuit left side airbag test electrics airbag (AB) Left side airbag sensor, testing hydraulic system, AB |
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| 009 | Front passenger side airbag squib (R12/10) | Ignition circuit, right side airbag, testing electrical system, airbag (AB) Right side airbag sensor, testing hydraulic system, AB |
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| 010 | 004-009 016, 017 026, 029 034 | Programming does not correspond to the vehicle equipment | Check vehicle equipment repeat programming Control module programing vehicle equipment airbag |
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| 017 | 003 | Voltage supply, undervoltage, circuit 15R | Voltage supply, testing electrical system, airbag | |
| 019 | 002 | Airbag indicator and warning lamp (A1e15) | SRS MIL test electrics airbag (AB) | |
| 020 | 025 | Front passenger seat occupied recognition sensor (left/right) (B41, B41/1) | AD91.60-P-6000-21A | |
| 024 | 016 | Left front seat belt buckle switch with AB and ETR (S68/3) | Driver airbag / emergency tensioning retractor / belt buckle test electrics airbag (AB) | |
| 025 | 017 | Right front seat buckle switch with AB and ETR (S68/4) | Front passenger airbag / emergency tensioning retractor / seat belt buckle, testing electrical system, airbag (AB) | |
| 073 | Short-circuit ignition circuits ( |
Ignition circuits, testing electrical system, airbag (AB) | ||
| 018 | Left front side airbag sensor (A53) cable fault | with code 292 | Left side airbag sensor, testing hydraulic system, AB | |
| 019 | Left front side airbag sensor (A53) sensor defective | with code 292 | Replace sensor | |
| 020 | Left front side airbag sensor (A53) sensor defective | with code 292 | Replace sensor | |
| 021 | Right front side airbag (A54) sensor defective | with code 292 | Right side airbag sensor, testing hydraulic system, AB | |
| 022 | Right front side airbag (A54) sensor defective | with code 292 | Replace sensor | |
| 023 | Right front side airbag (A54) sensor defective | with code 292 | Replace sensor | |
| 027 | Front passenger seat occupied recognition sensor with automatic child seat recognition (ACSR) (B48) Communication, |
Automatic child seat recognition test electrics airbag (AB) | ||
| 028 | Front passenger seat occupied recognition sensor with automatic child seat recognition (B48), Child seat incorrectly positioned or defective, transfer between seat and child seat | Metallic objects on front passenger or child seat. Powerful transmitter, phone or similar, which are temporarily in the vicinity. |
Position child seat correctly or Replace B48 | |
| 031 | Front passenger seat occupied recognition sensor with automatic child seat recognition (B48) | Replace B48 | ||
| 032 | Left front side airbag sensor (A53) communication fault | with code 292 | Check electromagnetic compatibility (EMC) and cable routing for retrofitted components | |
| 033 | Right front side airbag sensor (A54) communication fault | with code 292 | Check electromagnetic compatibility (EMC) and cable routing for retrofitted components | |
| 034 | Digital crash output, cable fault (TELE AID) | MODEL 170 | ||
| 035 | Analogue crash output, cable fault | MODEL 170 | ||