Glow plug warning lamp (Engine management system - Td5)
- Make
- Land Rover
- Model
- Discovery II (UK)
- Section
- Description and operation › Glow plug warning lamp
Glow plug warning lamp
The glow plug warning lamp is located in the instrument cluster. It illuminates to alert the driver that the glow plugs are being heated prior to the engine being started. The length of time that the lamp illuminates and the glow plugs are operating prior to cranking is the pre-heat period, which is subject to battery voltage and ECT sensor signal controlled by the ECM.
Input/Output The instrument cluster supplies battery voltage to the glow plug warning lamp. The ECM provides an earth path to illuminate the lamp. The earth path is via pin 30 of ECM connector C0658.
Glow plugs
The 4 glow plugs are located in the engine block on the inlet side, in cylinder 1 to 4. Cylinder 5 has no glow plug. The glow plugs are a vital part of the engine starting strategy.
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