Control module, glow plug (596)
| Control module, glow plug (596) |
| Location |
Filament control module (596)
| Main task |
The task of the glow plug control module is to activate the glow plugs upon the command of the engine management system.
| Type |
| Connection |
The control module is supplied with +30 from fuse 27 (60 A).
A diagnostic function integrated in the glow plug control module monitors the glow plugs so that when a fault occurs the engine control module is informed via the lead from connector pin 9 to engine control module connection 35(K).
When the engine control module pulls pin 3(A) to ground, the glow plug control module is activated, meaning pins 1 and 2 of the control module are supplied voltage.
When voltage on pin 3 (B+) exceeds 12 V, such as when the engine has been started, the control module begins alternately supplying power to pins 1 and 2. Alternation between pins 1 and 2 is done with 5 Hz. The power supply is pulsed alternately to lower power consumption.
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