volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Engine Control Module (ECM) Voltage Supply, Checking|Page 2115 > < Engine Control Module (ECM) Voltage Supply, Checking
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Press -> button.

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Press buttons -0- and -6- to select "End output" and press -Q- button to confirm input.

Evaluating display group 2

Voltage supply terminal 30, checking

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Switch ignition off.

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Connect VAG 1598/18 Test Box to ECM wiring harness.

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Switch Fluke 83 multimeter to 20 Volt DC range.

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Connect multimeter between Test Box sockets 1 + 54 using jumper wires from VW 1594 adapter kit.
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specification: 12 to 14.5 Volts

If specification not obtained:

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Check wiring using wiring diagram.

Voltage supply terminal 15, checking

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Switch ignition off.

Engine Control Module (ECM) Voltage Supply, Checking|Page 2115 > < Engine Control Module (ECM) Voltage Supply, Checking