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Showing posts with label - Switch on ignition.. Show all posts
Showing posts with label - Switch on ignition.. Show all posts

Mercedes Benz Truck GLK 350 (204.956) V6-3.5L (272.991) Manufacturer Code Page 3280

Mercedes Benz Truck GLK 350 (204.956) V6-3.5L (272.991) Manufacturer Code Page 3280

- Unplug connector of pressure sensor B4/7 (Fuel pressure sensor).

- Measure direct voltage with multimeter between sockets (B4/7) 3 and (B4/7) 1

- Switch on ignition.

Specified values

- Voltage : [4.8 ... 5.3] V

Question

- Is the measurement value OK?

YES

The measurement value is OK.Further possible causes of fault

- Inspect plug connections for corrosion, pinched insulation and loose contact.

End of test

NO

The measurement value is not OK.Possible cause and remedy

- Test wiring of voltage supply between component N118 (Fuel pump control module) and component B4/7 (Fuel pressure sensor).

- Inspect plug connections for corrosion, pinched insulation and loose contact.

End of test

1.3. Test wiring to component B4/7 (Fuel pressure sensor).

Test prerequisite

- The actual value is not o.k.

Test sequence

- Switch off ignition.

- Unplug 8-pin connector from control module N118 (Fuel pump control module).

- Disconnect connector at component B4/7 (Fuel pressure sensor).

Open circuit

- (N118) 2.Measure resistance with multimeter between sockets 6 and 3 (B4/7)

- (N118) 2.Measure resistance with multimeter between sockets 7 and 2 (B4/7)

- (N118) 2.Measure resistance with multimeter between sockets 8 and 1 (B4/7)

- Specified values

- Resistors< 1ohms

-

Short circuit

- Test cable to component B4/7 (Fuel pressure sensor) for short circuit to each other.

- N118.2.6

- N118.2.7

- N118.2.8

- Specified values

- Resistorsinfiniteohms

Mercedes Benz Truck GLK 350 (204.956) V6-3.5L (272.991) Manufacturer Code Page 2116

Mercedes Benz Truck GLK 350 (204.956) V6-3.5L (272.991) Manufacturer Code Page 2116

- W15/Measure resistance with multimeter between 1 and (2.21) 55 of the 35-pole socket box tester.

Specified value

- [<1ohms]

Question

- Is the measurement value OK?

YES

The measurement value is OK.Note

- In the event of stored faults with a high fault frequency count or in the event of customer complaints, check lines and connectors for loose

contact and corrosion..

End of test

NO

The measurement value is not OK.Possible cause and remedy

- Ground cable

- W15/1 (Ground (right footwell))

End of test

1.1.3.2.1.9. Check power supply at control unit N63/1 (DTR control module).

Check power supply at control unit N63/1 (DTR control module).

Test sequence

- Switch off ignition.

- Disconnect coupling 2 at component N63/1 (DTR control module).

- Measure direct voltage with multimeter between sockets (N63/1) 2.8 and (N63/1) 2.4

Mercedes Benz Truck GLK 350 (204.956) V6-3.5L (272.991) Manufacturer Code Page 1782

Mercedes Benz Truck GLK 350 (204.956) V6-3.5L (272.991) Manufacturer Code Page 1782

- Switch off ignition.

- Connect socket box.

- Switch on ignition.

- Measure direct voltage with multimeter between sockets (2.21) 55 and (2.43) 77 of the 126-pole socket box tester.

Specified value

- [11...14 V]

Question

- Is the measurement value OK?

YES

The measurement value is OK.Note

- In the event of stored faults with a high fault frequency count or in the event of customer complaints, check lines and connectors for loose

contact and corrosion..

End of test

NO

The actual value is not o.k.Note

- This test did not produce any clear result.

- Select further tests.

1.1.3.2.1.9.2.2. Test of cable for voltage supply

Test prerequisite

- Battery voltage is OK.

Test sequence

- Switch off ignition.

- Connect socket box.

- Switch on ignition.

- Measure direct voltage with multimeter between ground and socket (2.43) 77 of the 126-pole socket box tester.

Specified value

- [11...14 V]

Question

- Is the measurement value OK?

YES

The measurement value is OK.Note

- In the event of stored faults with a high fault frequency count or in the event of customer complaints, check lines and connectors for loose

contact and corrosion..

End of test

NO

The measurement value is not OK.Possible cause and remedy

- Lines to component N51 (AIRmatic with ADS control module)

- N10/1f45 (Fuse 45)

End of test

1.1.3.2.1.9.2.3. Test procedure ground cable

Test prerequisite

- Battery voltage is OK.

Test sequence

- Switch off ignition.

Mercedes Benz Truck GLK 350 (204.956) V6-3.5L (272.991) Manufacturer Code Page 1771

Mercedes Benz Truck GLK 350 (204.956) V6-3.5L (272.991) Manufacturer Code Page 1771

- The power supply of component Y3/8n4 (Fully integrated transmission control (VGS) control unit) is OK.

Test sequence

- Switch on ignition.

- Test voltage at component X11/4 (Diagnosis test connector).

- If several control modules are connected to a K-wire, the voltage can be measured even if an open circuit exists.

Measure direct voltage with multimeter between (X11/4) 11 and (-) ground.Specified value

- Voltage [8,5...16,4] V

Question

- Is the measurement value OK?

YES

Test sequence

- Switch off ignition.

- Separate plug connection at transmission.

- Measure voltage in transmission wiring harness using a multimeter.

- Measure resistance with multimeter between ground and 3

Specified value

- Resistance measured: [OL] ohms

Question

- Is the measurement value OK?

Mercedes Benz Truck GLK 350 (204.956) V6-3.5L (272.991) Manufacturer Code Page 973

Mercedes Benz Truck GLK 350 (204.956) V6-3.5L (272.991) Manufacturer Code Page 973

- Switch off ignition.

- Detach coupling at component B2/5 (Hot film mass air flow sensor).

- Measure direct voltage with multimeter between sockets (B2/5) 2 and (B2/5) 1

- Switch on ignition.

Specified value

- Voltage[11.0...15.0] V

Question

- Is the measurement value OK?

YES

The actual value is okay.Further possible causes of fault

- Unmetered air

- Signal wire

- B2/5 (Hot film mass air flow sensor)

End of test

NO

The measurement value is not OK.Possible cause and remedy

- N10/1f43 (Fuse 43)

- Cable for voltage supply

End of test

2. Check component M16/6 (Throttle valve actuator).

Test 2.1: Check component M16/6 (Throttle valve actuator) using actual value.

Test 2.2: Check component M16/6m1 (Actuator motor) by means of actuation.

Test 2.3: Check internal resistance of component M16/6m1 (Actuator motor).

Test 2.4: Check internal resistance of component M16/6 (Throttle valve actuator).

Test 2.5: Test voltage supply of the potentiometers of component M16/6 (Throttle valve actuator).

2.1. Check component M16/6 (Throttle valve actuator) using actual value.

Warning!Communication with ECU required.

Mercedes Benz Truck GLK 350 (204.956) V6-3.5L (272.991) Manufacturer Code Page 968

Mercedes Benz Truck GLK 350 (204.956) V6-3.5L (272.991) Manufacturer Code Page 968

End of test

1.4. Check reference signal of component B2/5 (Hot film mass air flow sensor).

Test sequence

- Switch on ignition.

Status of relevant actual value:

- HFM-SFI ( Reference signal ):Warning! Communication with ECU required.

Specified value

- Reference signal[46...59] ms

Question

- Is the measurement value OK?

YES

The actual value is okay.End of test

NO

The actual value is not o.k.Possible cause and remedy

- Check lines from component N3/10 (ME-SFI [ME] control unit) to component B2/5 (Hot film mass air flow sensor).

- B2/5 (Hot film mass air flow sensor)

1346

B2/5 (Hot film mass air flow sensor) : Loose contact with high frequency (P0104)

Possible cause:

- B2/5 (Hot film mass air flow sensor)

Affected functions:

- Engine diagnosis

- Engine output

-------------------------------------------------

Test 1: Check component B2/5 (Hot film mass air flow sensor).

1. Check component B2/5 (Hot film mass air flow sensor).

Test 1.1: Check signal of component B2/5 (Hot film mass air flow sensor) via actual value with engine OFF.

Test 1.2: Check signal of component B2/5 (Hot film mass air flow sensor) via actual value with engine speed greater than 3500 rpm.

Test 1.3: Check reference signal of component B2/5 (Hot film mass air flow sensor).

Test 1.4: Check power supply of component B2/5 (Hot film mass air flow sensor).

1.1. Check signal of component B2/5 (Hot film mass air flow sensor) via actual value with engine OFF.

Warning!Communication with ECU required.

1.2. Check signal of component B2/5 (Hot film mass air flow sensor) via actual value with engine speed greater than 3500 rpm.

Warning!Communication with ECU required.

1.3. Check reference signal of component B2/5 (Hot film mass air flow sensor).

Test sequence

- Switch on ignition.

Status of relevant actual value:

- HFM-SFI ( Reference signal ):Warning! Communication with ECU required.

Mercedes Benz Truck GLK 350 (204.956) V6-3.5L (272.991) Manufacturer Code Page 949

Mercedes Benz Truck GLK 350 (204.956) V6-3.5L (272.991) Manufacturer Code Page 949

Test voltage supply of circuit 15.

Test sequence

- Measure direct voltage with multimeter between sockets [ F.2 ] 98 and [ F.15 ] 111 of the 35-pole socket box tester.

- Switch on ignition.

Specified value

- Voltage[11.0...15.0] V

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

- N10/1f52 (Fuse 52)

- Lines

End of test

1.2. Test voltage supply of circuit 87. ( Check using actual value )

Test prerequisite

- The voltage test at component G1 (Battery) is o.k.

Mercedes Benz Truck GLK 350 (204.956) V6-3.5L (272.991) Manufacturer Code Page 944

Mercedes Benz Truck GLK 350 (204.956) V6-3.5L (272.991) Manufacturer Code Page 944

Test voltage supply of circuit 15.

Test sequence

- Measure direct voltage with multimeter between sockets [ F.2 ] 98 and [ F.15 ] 111 of the 35-pole socket box tester.

- Switch on ignition.

Specified value

- Voltage[11.0...15.0] V

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

- N10/1f52 (Fuse 52)

- Lines

End of test

1.4. Test voltage supply of circuit 87. ( Check using actual value )

Mercedes Benz Truck GLK 350 (204.956) V6-3.5L (272.991) Manufacturer Code Page 943

Mercedes Benz Truck GLK 350 (204.956) V6-3.5L (272.991) Manufacturer Code Page 943

Test current consumption of component N10/1kR (Circuit 87 relay, engine).

Test sequence

- Measure direct current with multimeter between sockets [F.4] 100 and [F.27] 123 of the 126-pole socket box tester.

- Switch on ignition.

Specified value

- Amperage[0.1...0.3] A

Question

- Is the measurement value OK?

YES

The test was okay.End of test

NO

The measurement value is not OK.Possible cause and remedy

- Lines to component N10/1kR (Circuit 87 relay, engine)

- N10/1kR (Circuit 87 relay, engine)

End of test

1.3. Test voltage supply of circuit 15.

Connect socket box to component N3/10 (ME-SFI [ME] control unit).

Figure legend

- A -ConnectionTest cable 35-pin socket box

- 001 -Sockets of component N3/10 (ME-SFI [ME] control unit)

- 05 -35-pin socket box

- 050 -126-pin socket box

- 108 -Test cable 266 589 01 63 00

- N3/10 (ME-SFI [ME] control unit)

- II 1-63ConnectionTest cable

- III 64-126ConnectionTest cable

Warning!

-

- Connection A of test cable 108 may NOT be connected to connection B of the 126-pin socket box (050).

Continue to test with button F2

Mercedes Benz Truck GLK 350 (204.956) V6-3.5L (272.991) Manufacturer Code Page 942

Mercedes Benz Truck GLK 350 (204.956) V6-3.5L (272.991) Manufacturer Code Page 942

- Measure direct voltage with multimeter between sockets [ F.2 ] 98 and [F.3] 99 of the 126-pole socket box tester.

- Measure direct voltage with multimeter between sockets [ F.4 ] 100 and [ F.5 ] 101 of the 126-pole socket box tester.

- Measure direct voltage with multimeter between sockets [ F.6 ] 102 and [ F.5 ] 101 of the 126-pole socket box tester.

- Switch on ignition.

Specified value

- Voltage[11.0...15.0] V

Question

- Are the measurement values OK?

YES

The measurement values are OK.Further possible causes of fault

- Test voltage supply of circuit 30.

NO

The measurement values are not OK.Possible cause and remedy

- N10/1f43 (Fuse 43)

- N10/1f44 (Fuse 44)

- N10/1kI (Circuit 87 relay, engine)

- Lines

- N10/1 (Driver-side SAM control unit with fuse and relay module)

End of test

1.2. Test current consumption of component N10/1kR (Circuit 87 relay, engine).

Connect socket box to component N3/10 (ME-SFI [ME] control unit).

Figure legend

- A -ConnectionTest cable 35-pin socket box

- 001 -Sockets of component N3/10 (ME-SFI [ME] control unit)

- 05 -35-pin socket box

- 050 -126-pin socket box

- 108 -Test cable 266 589 01 63 00

- N3/10 (ME-SFI [ME] control unit)

- II 1-63ConnectionTest cable

- III 64-126ConnectionTest cable

Warning!

-

- Connection A of test cable 108 may NOT be connected to connection B of the 126-pin socket box (050).

Continue to test with button F2

Mercedes Benz Truck GLK 350 (204.956) V6-3.5L (272.991) Manufacturer Code Page 927

Mercedes Benz Truck GLK 350 (204.956) V6-3.5L (272.991) Manufacturer Code Page 927

Test voltage supply of circuit 30.

Test sequence

- Measure direct voltage with multimeter between sockets [ F.2 ] 98 and [ F.16 ] 112 of the 35-pole socket box tester.

- Switch on ignition.

Specified value

- Voltage[11.0...15.0] V

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

- F34f42 (Fuse 42)

- Lines

End of test

1.3. Test voltage supply of circuit 87.

Connect socket box to component N3/10 (ME-SFI [ME] control unit).

Mercedes Benz Truck GLK 350 (204.956) V6-3.5L (272.991) Manufacturer Code Page 922

Mercedes Benz Truck GLK 350 (204.956) V6-3.5L (272.991) Manufacturer Code Page 922

Test voltage supply of circuit 15.

Test sequence

- Measure direct voltage with multimeter between sockets [ F.2 ] 98 and [ F.15 ] 111 of the 35-pole socket box tester.

- Switch on ignition.

Specified value

- Voltage[11.0...15.0] V

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

- N10/1f52 (Fuse 52)

- Lines

End of test

2. Arrangement of fuses

Mercedes Benz Truck GLK 350 (204.956) V6-3.5L (272.991) Manufacturer Code Page 921

Mercedes Benz Truck GLK 350 (204.956) V6-3.5L (272.991) Manufacturer Code Page 921

Test current consumption of component N10/1kR (Circuit 87 relay, engine).

Test sequence

- Measure direct current with multimeter between sockets [F.4] 100 and [F.27] 123 of the 126-pole socket box tester.

- Switch on ignition.

Specified value

- Amperage[0.1...0.3] A

Question

- Is the measurement value OK?

YES

The test was okay.End of test

NO

The measurement value is not OK.Possible cause and remedy

- Lines to component N10/1kR (Circuit 87 relay, engine)

- N10/1kR (Circuit 87 relay, engine)

End of test

1.5. Test voltage supply of circuit 15.

Connect socket box to component N3/10 (ME-SFI [ME] control unit).

Figure legend

- A -ConnectionTest cable 35-pin socket box

- 001 -Sockets of component N3/10 (ME-SFI [ME] control unit)

- 05 -35-pin socket box

- 050 -126-pin socket box

- 108 -Test cable 266 589 01 63 00

- N3/10 (ME-SFI [ME] control unit)

- II 1-63ConnectionTest cable

- III 64-126ConnectionTest cable

Warning!

-

- Connection A of test cable 108 may NOT be connected to connection B of the 126-pin socket box (050).

Continue to test with button F2

Mercedes Benz Truck GLK 350 (204.956) V6-3.5L (272.991) Manufacturer Code Page 92

Mercedes Benz Truck GLK 350 (204.956) V6-3.5L (272.991) Manufacturer Code Page 92

Test voltage supply of circuit 30.

Test sequence

- Measure direct voltage with multimeter between sockets [ F.2 ] 98 and [ F.16 ] 112 of the 35-pole socket box tester.

- Switch on ignition.

Specified value

- Voltage[11.0...15.0] V

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

- N10/1f57 (Fuse 57)

- Lines

End of test

1.3.2.1.1.2. Test current consumption of component N10/1kR (Circuit 87 relay, engine).

Connect socket box to component N3/10 (ME-SFI [ME] control unit).

Mercedes Benz Truck GLK 350 (204.956) V6-3.5L (272.991) Manufacturer Code Page 909

Mercedes Benz Truck GLK 350 (204.956) V6-3.5L (272.991) Manufacturer Code Page 909

Test voltage supply of circuit 30.

Test sequence

- Measure direct voltage with multimeter between sockets [ F.2 ] 98 and [ F.16 ] 112 of the 35-pole socket box tester.

- Switch on ignition.

Specified value

- Voltage[11.0...15.0] V

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

- F34f42 (Fuse 42)

- Lines

End of test

1.3. Test voltage supply of circuit 87.

Connect socket box to component N3/10 (ME-SFI [ME] control unit).

Mercedes Benz Truck GLK 350 (204.956) V6-3.5L (272.991) Manufacturer Code Page 903

Mercedes Benz Truck GLK 350 (204.956) V6-3.5L (272.991) Manufacturer Code Page 903

Test voltage supply of circuit 30.

Test sequence

- Measure direct voltage with multimeter between sockets [ F.2 ] 98 and [ F.16 ] 112 of the 35-pole socket box tester.

- Switch on ignition.

Specified value

- Voltage[11.0...15.0] V

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

- F34f42 (Fuse 42)

- Lines

End of test

1.3. Test voltage supply of circuit 87.

Connect socket box to component N3/10 (ME-SFI [ME] control unit).

Mercedes Benz Truck GLK 350 (204.956) V6-3.5L (272.991) Manufacturer Code Page 9

Mercedes Benz Truck GLK 350 (204.956) V6-3.5L (272.991) Manufacturer Code Page 9

Test voltage supply of circuit 15.

Test sequence

- Measure direct voltage with multimeter between sockets [ F.2 ] 98 and [ F.15 ] 111 of the 35-pole socket box tester.

- Switch on ignition.

Specified value

- Voltage[11.0...15.0] V

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

- N10/1kP (Circuit 15 relay)

- Lines

End of test

1.3.2.1.2. Check power supply at control unit ESP.

Test 1.3.2.1.2.1: Test voltage of terminal 87 at control unit N47-5 (ESP, SPS [PML] and BAS control unit).

Mercedes Benz Truck GLK 350 (204.956) V6-3.5L (272.991) Manufacturer Code Page 841

Mercedes Benz Truck GLK 350 (204.956) V6-3.5L (272.991) Manufacturer Code Page 841

Test voltage supply of circuit 30.

Test sequence

- Measure direct voltage with multimeter between sockets [ F.2 ] 98 and [ F.16 ] 112 of the 35-pole socket box tester.

- Switch on ignition.

Specified value

- Voltage[11.0...15.0] V

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

- F34f42 (Fuse 42)

- Lines

End of test

1.3. Test voltage supply of circuit 87.

Connect socket box to component N3/10 (ME-SFI [ME] control unit).

Mercedes Benz Truck GLK 350 (204.956) V6-3.5L (272.991) Manufacturer Code Page 829

Mercedes Benz Truck GLK 350 (204.956) V6-3.5L (272.991) Manufacturer Code Page 829

Test voltage supply of circuit 30.

Test sequence

- Measure direct voltage with multimeter between sockets [ F.2 ] 98 and [ F.16 ] 112 of the 35-pole socket box tester.

- Switch on ignition.

Specified value

- Voltage[11.0...15.0] V

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

- F34f42 (Fuse 42)

- Lines

End of test

1.3. Test voltage supply of circuit 87.

Connect socket box to component N3/10 (ME-SFI [ME] control unit).

Mercedes Benz Truck GLK 350 (204.956) V6-3.5L (272.991) Manufacturer Code Page 8

Mercedes Benz Truck GLK 350 (204.956) V6-3.5L (272.991) Manufacturer Code Page 8

Test current consumption of component N10/1kR (Circuit 87 relay, engine).

Test sequence

- Measure direct current with multimeter between sockets [F.4] 100 and [F.27] 123 of the 126-pole socket box tester.

- Switch on ignition.

Specified value

- Amperage[0.1...0.3] A

Question

- Is the measurement value OK?

YES

The test was okay.End of test

NO

The measurement value is not OK.Possible cause and remedy

- Lines to component N10/1kR (Circuit 87 relay, engine)

- N10/1kR (Circuit 87 relay, engine)

End of test

1.3.2.1.1.3. Test voltage supply of circuit 15.

Connect socket box to component N3/10 (ME-SFI [ME] control unit).

Figure legend

- A -ConnectionTest cable 35-pin socket box

- 001 -Sockets of component N3/10 (ME-SFI [ME] control unit)

- 05 -35-pin socket box

- 050 -126-pin socket box

- 108 -Test cable 266 589 01 63 00

- N3/10 (ME-SFI [ME] control unit)

- II 1-63ConnectionTest cable

- III 64-126ConnectionTest cable

Warning!

-

- Connection A of test cable 108 may NOT be connected to connection B of the 126-pin socket box (050).

Continue to test with button F2

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