AD07.61-S-6000-07A | FP relay module, testing electrical system of fuel injection system (ME-SFI) |
| Scope of test | Measuring instrument/ Test connection | Operation/Requirement | Specified value | Possible cause/Remedy | ||
1.0 | Fuel pump relay (K39) Actuation |
21 (29C) |
A61 |
2 (2A) | Ignition: ON The actuation of the fuel pump takes place only once after ignition “ON”. Up to the next actuation the engine must be run briefly. Engine: Start During the starting process and as long as the engine is running: Ignition: ON |
11-14 V approx. 1 s 11-14 V | Test cable to fuel pump ME-SFI control module (A61) 1.1 |
1.1 | Fuel pump relay (K39) Resistance -//- - + - + |
86 87 30 |
K39 |
85 85 85 | Ignition: OFF Relay K39 disconnected |
83 - 89 Ω > 20 kΩ > 20 kΩ |
Relay K39 Relay K39 Relay K39 1.2 |
1.2 | Signal terminal 87 |
| | K39 85 | Relay K39 disconnected Ignition: ON |
11 - 14 V | Test cable from K39 to fuse for –//– 1.3 |
1.3 | Signal terminal 30 |
| | K39 30 | Relay K39 disconnected |
11 - 14 V | Test cable from K39 to fuse for –//– 1.4 |
1.4 | Cable -//- Cable - Cable + |
K39 86 |
| A61 21 (29C) A61 21 (29C) A61 21 (29C) | Ignition: OFF Connector C on ME-SFI control module (A61) disconnected Relay K39 disconnected Ignition: OFF Connector C on ME-SFI control module (A61) disconnected Relay K39 disconnected Ignition: OFF Connector C on ME-SFI control module (A61) disconnected Relay K39 disconnected Ignition: ON |
< 5 Ω > 20 kΩ < 1 V | Test cable for –//– Test cable for - Test cable for + |