volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Engine Control Module (ECM) Voltage Supply, Checking|Page 451 > < Engine Control Module (ECM) Voltage Supply, Checking|Page 449
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If specified value is not obtained:

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Check wire connections to relay carrier and Ground (GND) connection of Engine Control Module (ECM) according to wiring diagram:

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Erase DTC memory of Engine Control Module (ECM), Diagnostic mode 4: Reset/erase diagnostic data.

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Generate readiness code.   See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive Cycles
and Readiness Codes

Engine Control Module (ECM) Voltage Supply, Checking|Page 451 > < Engine Control Module (ECM) Voltage Supply, Checking|Page 449