Description
(1) pre-post heat box
"a" 4-way black connector
"b" 5-way black connector
Supplier: NGK
Role
The pre-postheating control unit manages the functioning of the preheater plugs in the following phases
- Starting and operating from cold
- Emission standard
The pre-postheating unit contains the following functions
- Protection against polarity inversion of the battery, for a maximum period of 30 milliseconds
- Protection against overheating
- Protection against excessive voltage
- Self diagnostics forward any faults detected on the glow plugs and/or the electronics inside the unit
Electrical specifications
| description | value |
|---|---|
| nominal supply voltage | 12 V |
| maximum supply voltage | 16 V |
| minimum supply voltage | 8 V |
| maximum operating temperature | 140 °C |
| channel number | allocation of the tracks of the connector |
|---|---|
| 1 | glow plug 1 |
| 2 | glow plug 2 |
| 3 | glow plug 3 |
| 4 | glow plug 4 |
| channel number | allocation of the tracks of the connector |
|---|---|
| 1 | + ignition on (+IGN) |
| 2 | control |
| 3 | diagnosis |
| 4 | earth |
| 5 | battery + |
Programming/initialisation
Not applicable