Checking wiring

Connect test box to control module wiring harness. See CONNECT TEST BOX FOR WIRING TEST .
Check wires between test box and 5-pin connector for open circuit according to wiring diagram.
Terminal 2+socket 102

Terminal 3 + socket 94

Terminal 4 + socket 103

Wire resistance: max: 1.5 Ω

Fig 1: Identifying Ignition Coil Harness Connector Terminals (Engine Code AFP)

Courtesy of VOLKSWAGEN OF AMERICA, INC.

Also check wires for short circuit to each other.
Specified value: INFINITY Ω

If no malfunctions are found in the wires and there was voltage between terminal 1 + 5:
Replace Engine Control Module (ECM). See REPLACING ENGINE CONTROL MODULE (ECM) .