Automatic Glow Time Control Module -J179-: Notes

Fig 1: Identifying Automatic Glow Time Control Module

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

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Automatic Glow Time Control Module -J179-

The pre-glow system is controlled by an Automatic Glow Time Control Module -J179-. The Automatic Glow Time Control Module -J179- is On Board Diagnostic (OBD) capable.

If there is a malfunction in the preglow system, a fault will be stored in the Engine Control Module (ECM).

Checking the preglow system is explained in "Guided Fault Finding".

Electronically controlled glow plugs with a separate glow plug control module were installed in order to reach a quick starting function.

Each glow plug is controlled and diagnosed individually.