With Generic Scan Tool

Evaporative Emission (EVAP) Canister Purge Regulator Valve, Checking

Solenoid valve is closed when no voltage is present.

Recommended special tools and equipment
- V.A.G1526 multimeter or V.A.G1715 multimeter
- V.A.G1594 connector test kit
- Wiring diagram

Requirements







- The respective fuses of Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80- must be OK.
- Ignition switched off.

Test sequence







- Disconnect 2-pin connector -1- from Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80- (-2-).







- Measure resistance between terminals of solenoid valve.
- Specified value: 22.0 to 30.0 Ohms

If specified value is not obtained:
- Replace Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-.
- Erase DTC memory of Engine Control Module (ECM), Diagnostic mode 4: Reset/erase diagnostic data. Diagnostic Mode 4: Reset/Erase Diagnostic Data
- Generate readiness code. Monitors, Trips, Drive Cycles and Readiness Codes

If specified value is obtained:
- Connect test box to control module wiring harness. Test Box, Connecting For Wiring Test







- Check wire between test box socket 64 + 2-pin connector terminal 2 for open circuit according to wiring diagram.
Wire resistance: max: 1.5 Ohms

- Check wire for short circuit to B+ and Ground (GND).
Specified value: Infinite Ohms

- Check wire between 2-pin connector terminal 1 and Fuel Pump (FP) Relay -J17- for open circuit according to wiring diagram.
Wire resistance: max: 1.5 Ohms

If no malfunctions are found in wires:
- Replace Motronic Engine Control Module (ECM) -J220-.