AD07.13-D-6000-35A | Diesel injection system (EDC) test of electrical system hot film mass air flow sensor |
| Scope of test | Measuring instrument/ Test connection | Operation/Requirement | Specified value | Possible cause/Remedy | ||
1.0 | Air mass sensor (B101) Ground cable MODELS 901, 902, 903 with code (MS5) | A20 6 |
|
B101 3 | Ignition: OFF Coupling on control unit disconnected Coupling on air mass sensor disconnected | < 5 Ω | Cable |
1.1 | Voltage supply 12 V | A20 6 |
|
B101 2 | Ignition: OFF Coupling on air mass sensor Ignition: ON | 11-14 V | Cable Fuse F15 |
1.2 | Voltage supply 5 V | A20 6 |
|
B101 4 | Ignition: ON | 4.7-5.3 V | Cable MSA control unit (A20) |
1.3 | Output voltage |
6 | A20 |
21 | Ignition: ON Engine: Idling Coolant temperature > 70° C | 0.9 – 1.1 V 1.7 – 2.2 V Increasing speed, increasing voltage | Cable Air mass sensor (B101) |