Y58/1 (Purge Control Valve)

Purge Control System Has Leak (function Chain) :: Mechanical Defect in Component Y58/1 (Purge Control Valve) (P0440)

Check Component Y58/1 (Purge Control Valve).

Test 1 Actuate Component Y58/1 (Purge Control Valve).
Test 2 Test Current Consumption of Component Y58/1 (Purge Control Valve).
Test 3 Perform Mechanical Inspection of Component Y58/1 (Purge Control Valve).
Test 4 Test Signal Voltage of Component Y58/1 (Purge Control Valve).


1 Actuate Component Y58/1 (Purge Control Valve).

Test sequence
- Switch on ignition.
- Actuate component Y58/1 (Purge control valve).(Operate pushbutton F2.)

Note: Component M4/3 (engine/AC electric suction fan) runs with an on/off ratio of 50 % during the actuations for safety reasons.

Note! Communication with ECU required.


2 Test Current Consumption of Component Y58/1 (Purge Control Valve).

Test requirement
- Actuation is not okay.

Test sequence
- Switch off ignition.
Connect socket box.
- (5.7) 7 <--> 2 (5.2)
- Switch on ignition.

Specified value
- Amperage[0.4...0.6] A

Question
- Is the measured value okay?
Yes
The measured value is o.k.
Further possible causes of fault
- Perform mechanical inspection of component Y58/1 (Purge control valve).
No
The measured value is not o.k.
Possible cause and remedy
- Voltage supply of component Y58/1 (Purge control valve)(Wiring diagrams)
- Inspect cables from component N3/10 (ME-SFI control module) to component Y58/1 (Purge control valve).
- Y58/1 (Purge control valve)

** End of Test **


3 Perform Mechanical Inspection of Component Y58/1 (Purge Control Valve).





Figure legend
- 019 Vacuum tester
- a 3-point distributor
- b Vacuum line to activated charcoal canister
- Y58/1 (Purge control valve)

Test requirement
- Actuation is o.k.

Test sequence
- Switch off ignition.
- Connect the vacuum tester to the input of component Y58/1 (Purge control valve) with the 3 x distributor.
- Operate engine at idling speed.
- Engine at operating temperature
- Actuate component Y58/1 (Purge control valve), then with key F2.

Note! Communication with ECU required.


4 Test Signal Voltage of Component Y58/1 (Purge Control Valve).

Test requirements
- Engine at operating temperature

Test sequence
- Switch off ignition.
- Connection Measuring system
- A4 Blue socket <--> Green socket A7
- Operate engine at idling speed.

Status of relevant actual value:
- Temperature of coolant: Communication with ECU required

Note
- Measuring system: Continue with key F2

** End of Test **