Control module, glow plugs
| Control module, glow plugs |
The task of the glow plug control module is to activate the glow plugs after a command from the engine management system. It is powered with +30 from fuse F1 (60 A) while it is grounded from pin 7 to G30.
It has integrated diagnostics, which monitors the glow plugs so that the engine control module is informed by a lead from pin 9 if a fault should occur.
When the engine control module grounds pin 94, the glow plug control module is activated, which means that pins 1 and 2 on the control module become live. The glow plugs are connected in pairs to pins 1 and 2.
When the voltage on pin 8 (B+) exceeds 12V, such as when the engine has started, the control module will go over to alternately energizing pins 1 and 2. The alternation between pins 1 and 2 is 5 Hz. The power supply is alternated in this way to reduce the power consumption.
| Diagnostics |
A general system fault in the glow function generates
P1672 Glow control unit. Feedback error.
System reaction to a fault
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CHECK ENGINE on
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