Mercedes Benz Truck GLK 350 (204.956) V6-3.5L (272.991) Manufacturer Code Page 966

Mercedes Benz Truck GLK 350 (204.956) V6-3.5L (272.991) Manufacturer Code Page 966

- Check lines and connectors for proper connection and locking, loose contact, damage, contamination and corrosion.

- Check engine wiring harness for correct routing, chafe marks and proper contact at the control unit.

For cleaning, the connector may only be blown out with compressed air! Cleaning agents must not be used.

NO

The measurement value is not OK.Possible cause and remedy

- Check LIN lines between control unit N3/10 (ME-SFI [ME] control unit) and component Generator.

Continue with button F2

Test sequence

- Switch off ignition.

- Reconnect detached couplings.

- Disconnect 2-pin plug from component Generator.

- Connect adapter cable no. 220 589 00 99 35 at component Generator.

- Connect multimeter to red socket of adapter and socket box.

- Measure direct voltage with multimeter between pin [G2] 2 and socket [ M.45 ] 45 of the 126-pole socket box tester.

- Switch on ignition.

Specified value

- Voltage [approx.0 mV ]

Question

- Is the measurement value OK?

YES

The measurement value is OK.Other possible cause of fault

- The alternator regulator is defective

End of test

NO

The measurement value is not OK.Possible cause and remedy

- Check lines and connectors for proper connection and locking, loose contact, damage, contamination and corrosion.

- Check engine wiring harness for correct routing, chafe marks and proper contact at the control unit.

For cleaning, the connector may only be blown out with compressed air! Cleaning agents must not be used.

1345

B2/5 (Hot film mass air flow sensor) : Loose contact with low 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 power supply of component B2/5 (Hot film mass air flow sensor).

Test 1.4: Check reference signal 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.

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Mercedes Benz Truck GLK 350 (204.956) V6-3.5L (272.991) Manufacturer Code Page 966

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