Scirocco L4-1781cc 1.8L DOHC (1986)
b. Check power supply fuse and wiring.
c. Check terminal connections on the CIS-E control unit, coolant temperature sensor, and differential pressure regulator, for corrosion, burning,
or loose connections.
12.
If the connections, wiring, power, ground, and resistance are all OK, replace the control unit.
