AD83.40-S-6001-11A | TM test of electrical system AC control refrigerant pressure sensor | Model 638.294 with Engine 104.900 |
| Scope of test | Tester/test connection | Operation/ Requirement | Specified value | Possible cause/ Remedy | ||
1.0 | Pressure sensor, refrigerant, fan actuation (B56) Ground connection Model 638.294 with Engine 104.900 |
| B56.1 |
1 | Plug removed from pressure sensor, refrigerant, fan actuation |
< 5 Ω | Ground connection on engine cooler module cycled (A80) 1.1 |
1.1 | Voltage supply (5 V) |
| B56.1 |
3 | Plug removed from pressure sensor, refrigerant, fan actuation Ignition: ON |
approx. 5 V | Voltage supply from engine cooler module cycled (A80) 1.2 |
1.2 | Signal cable, short-circuit to ground |
| B56.1 |
2 | Plug removed from pressure sensor, refrigerant, fan actuation |
>20 kΩ | Short-circuit to ground 1.3 |
1.3 | Signal cable, short-circuit to positive |
| B56.1 |
3 | Plug removed from pressure sensor, refrigerant, fan actuation Ignition: ON |
< 1 V | Short-circuit to positive Value in order Pressure sensor, refrigerant, fan actuation (B56) Engine cooler fan module cycled (A80) |