EVAP Canister Purge Regulator Valve 2, Checking
Solenoid valve is closed when no voltage is present.
Special tools and workshop equipment required
- Multimeter VAG1526 or multimeter VAG1715
- Connector test kit VAG1594
- Wiring diagram
Test requirements
- Fuses in E-box (in plenum chamber, left) must be OK: Refer to SYSTEM WIRING DIAGRAM
- Motronic Engine Control Module (ECM) Power Supply Relay -J271- must be OK, check: Refer to SYSTEM WIRING DIAGRAM
- Ground (GND) connections between engine and chassis must be OK.
- Ignition switched off.
Test sequence
-- Remove rear right wheelhousing liner.
-- Disconnect 2-pin connector from Evaporative Emission (EVAP) Canister Purge Solenoid Valve -N115- (-1-).
Checking resistance
-- Measure resistance between terminals of solenoid valve.
Specified value: 15.0 to 35.0 Ω
If specified value is not obtained:
-- Replace Evaporative Emission (EVAP) Canister Purge Solenoid Valve -N115-.
-- Erase DTC memory of Engine Control Module (ECM), Diagnostic mode 4: Reset/erase diagnostic data.
-- Generate readiness code.
If specified value is obtained:
-- Check wires according to wiring diagram.
Checking wiring
-- Connect test box to control module wiring harness, connect test box for wiring test.
-- Check wire between test box socket 22 + 2-pin connector terminal 2 for open circuit according to wiring diagram.
Wire resistance: max. 1.5 Ω
-- Also check the wire for short circuit to B+ and Ground (GND).
Specified value: ∞ 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
-- Erase DTC memory of Engine Control Module (ECM), Diagnostic mode 4: Reset/erase diagnostic data.
-- Generate readiness code.
If no malfunctions are found in wires:
-- Replace Motronic Engine Control Module (ECM) -J220- ENGINE CONTROL MODULE, REPLACING .