P208C

Y49/1 (Left camshaft timing solenoid) (P0340)

Test 1: Check component Y49/1 (Left camshaft timing solenoid).

1. Check component Y49/1 (Left camshaft timing solenoid).

Test 1.1: Test actuation of component Y49/1 (Left camshaft timing solenoid).

Test 1.2: Test current consumption of component Y49/1 (Left camshaft timing solenoid).

1.1. Test actuation of component Y49/1 (Left camshaft timing solenoid).
Test prerequisite

- Coolant temperature:>80° C
Test sequence

- Switch off ignition.
- Connect socket box (35-pin) to component N3/10 (ME-SFI [ME] control unit).
- Connect socket box (126-pin) to component N3/10 (ME-SFI [ME] control unit).
- Measure direct voltage with multimeter between socket (5.9) 9 of the 35-pole socket box tester and socket (3.39) 72 of the 126-pole socket box tester.
- Engage gear D.Drive vehicle in gear 2 at an engine speed of 2000 1/min ... 2500 1/min and a load of 2500N on the roller dynamometer.
Component Y49/1 (Left camshaft timing solenoid) is actuated clocked.Status of the relevant actual values:
- Temperature of coolant:Warning! Communication with ECU required.
- Engine speed:Warning! Communication with ECU required.
- Y49/1 (Camshaft adjustment valve, left bank of cylinders):Warning!
- Y49/2 (Exhaust camshaft solenoid):Warning!
Specified values

- Y49/1 (Camshaft adjustment valve, left bank of cylinders):ON
- Y49/2 (Exhaust camshaft solenoid):ON
- Briefly > 8 V, then [4.5...6.0] V
Question

- Is the measurement value OK?


YES
The measurement value is OK.Note

- This test did not produce any clear result.
- Select further tests.


NO
The measurement value is not OK.Possible cause and remedy

- Test current consumption of component Y49/1 (Left camshaft timing solenoid).
- Lines to component Y49/1 (Left camshaft timing solenoid)
- N3/10 (ME-SFI [ME] control unit)


1.2. Test current consumption of component Y49/1 (Left camshaft timing solenoid).
Test sequence

- Switch off ignition.
- Connect socket box (35-pin) to component N3/10 (ME-SFI [ME] control unit).
- Connect socket box (126-pin) to component N3/10 (ME-SFI [ME] control unit).
- Switch on ignition.
- Measure direct current with multimeter between socket (5.8) 8 of the 35-pole socket box tester and socket (3.39) 72 of the 126-pole socket box tester.
Warning!Perform the measurement only for a short time so that component Y49/1 (Left camshaft timing solenoid) does not overheat. (< 3 s)Specified value

- Component Y49/1 (Left camshaft timing solenoid) is heard to operate.
- Amperage[1.0...3.5] A
Question

- Is the measurement value OK?


YES
The measurement value is OK.End of test

NO
The measurement value is not OK.Possible cause and remedy

- Voltage supply of component Y49/1 (Left camshaft timing solenoid)
- Lines to component Y49/1 (Left camshaft timing solenoid)
- Y49/1 (Left camshaft timing solenoid)
End of test