| Automatic glow period control unit -J179- is located in relay and fuse holder (in electronics box in plenum chamber). |
| 3 - | Automatic glow period control unit -J179- |
| The glow plug system is activated via the automatic glow period control unit -J179-. The automatic glow period control unit -J179- is capable of self-diagnosis. |
| A fault is stored in the engine control unit if a fault occurs in the glow plug system. |
| The procedure for checking the glow plug system is described in the Guided Fault Finding. |
| For faster starting, the vehicle is equipped with electronically controlled glow plugs and a separate glow period control unit. |
| Each glow plug is activated and diagnosed separately. |
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