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
- VAG1526 multimeter or VAG1715 multimeter
- VAG1594 connector test kit
- Wiring diagram
Test requirements
- Fuse for Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80- OK
- Fuel Pump (FP) Relay -J17- OK
- Ignition switched off.
Test sequence
- Disconnect 2-pin connector -1- from Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80- (-2-).
Engine codes AMU, ATC
- Measure resistance between terminals of solenoid valve.
Specified value: 22.0...30.0 Ohm
Engine codes AWP, BEA
- Measure resistance between terminals of solenoid valve.
Specified value: 22.0...30.0 Ohm
Continuation for all vehicles
If specified value is not obtained:
- Replace Evaporative Emission (EVAP) Canister Purge Regulator Valve -N80-, item 8.
- 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. Readiness Code, Generating
If specified value is obtained:
- Connect test box to control module wiring harness, do not connect Engine Control Module (ECM), connecting test box for wiring test. Test Box, Connecting For Wiring Test
Engine codes AMU, ATC
- Check wire between test box socket 64+2-pin connector terminal 2 for open circuit according to wiring diagram.
Wire resistance: max: 1.5 Ohm
Engine codes AWP, BEA
- Check wire between test box socket 64+2-pin connector terminal 2 for open circuit according to wiring diagram.
Wire resistance: max: 1.5 Ohm
Continuation for all vehicles
- Also check the wire for short circuit to B+ and Ground (GND).
Specified value: Infinite Ohm
- Check wire between 2-pin connector terminal 1 and the Fuel Pump (FP) Relay -J17- for open circuit according to wiring diagram.
Wire resistance: max: 1.5 Ohm
If no malfunctions are found in wires:
- Replace Motronic Engine Control Module (ECM) -J220-.