Test sequence

Disconnect 2-pin harness connector to the respective valve for camshaft adjustment:
1. Valve -1- for camshaft adjustment -N205-
2. Camshaft Adjustment Valve 1 (exhaust) -N318-
NOTE: Before disconnecting harness connectors, mark allocation to component.
Measure resistance between terminals of the respective valve for camshaft adjustment.
Specified value: 10...18 Ω

If specified value is not obtained:

Fig 2: Measuring Resistance Between Terminals Of Respective Valve For Camshaft Adjustment Valve (Engine Code BDF)

Courtesy of VOLKSWAGEN OF AMERICA, INC.

Replace control housing for camshaft adjustment. See item 3.
Erase DTC memory of Engine Control Module (ECM). See DIAGNOSTIC MODE 4: RESET/ERASE DIAGNOSTIC DATA .
Generate readiness code. See READINESS CODE, GENERATING .

If specified value is obtained:

Connect test box to control module wiring harness. See CONNECT TEST BOX FOR WIRING TEST .

Check wires between test box and 2-pin connector to Engine Control Module (ECM) for open circuit according to wiring diagram.

Fig 3: Identifying Camshaft Adjustment Valve 2-Pin Harness Connector Terminals (Engine Code BDF)

Courtesy of VOLKSWAGEN OF AMERICA, INC.

Wire resistance: max: 1.5 Ω

Checking Wiring For Camshaft Adjustment (Engine Code BDF)

Component	Connector	Test box
Valve -1- for camshaft adjustment - N205-	Terminal 2	Socket 115
Camshaft Adjustment Valve 1 (exhaust) - N318-	Terminal 2	Socket 120

Also check wires for short circuit to B+ and Ground (GND).
Specified value: INFINITY Ω
Check wire between 2 -pin connector terminal 1 and Motronic Engine Control Module (ECM) Power Supply Relay -J271- for open circuit according to wiring diagram
Wire resistance: max: 1.5 Ω

If resistances and wires are OK:
Replace Motronic Engine Control Module (ECM) -J220-. See REPLACING ENGINE CONTROL MODULE (ECM) .