DESCRIPTION

Fig. 23: Locating Diesel Glow Plug Control Module

The glow plug control module is mounted to the fuel filter/water separator bracket, and is controlled by the engine control module.

OPERATION

When the ignition (key) switch is placed in the ON position, a signal is sent to the ECM relating current engine coolant temperature. This signal is sent from the engine coolant temperature sensor.

The glow plug control module receives information about the glow function from the engine control module.

The start of glow plug operation, the period of glow plug operation, the actuation frequency and the pulse duty factor are therefore determined by the engine control module.

REMOVAL

Fig. 24: Locating Diesel Glow Plug Control Module

1. Disconnect the glow plug module harness connector (1)

2. Remove the fastener (3).

3. Remove the glow plug module (2).

INSTALLATION

Fig. 25: Locating Diesel Glow Plug Control Module

1. Install the glow plug module (2).

2. Install the fastener (3).

3. Reconnect the glow plug module harness connector (1)