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Volvo All Engines (2017 Emissions) Fault Code: P117900 PID: EMS Starter Motor Deactivated – PTO Active

Volvo All Engines (2017 Emissions) Fault Code: P117900 PID: EMS Starter Motor Deactivated – PTO Active

The (VECU) Vehicle Electronic Control Unit supplies and monitors the cranking signal to the starter motor relay. Several types of starter cranking protection are provided so the starter cannot be engaged in unwanted conditions. The starter cranking protection will also limit the maximum cranking time to 18 seconds without cycling the key.

Conditions for diagnostic trouble code (DTC):
1) Power take-off activated

Observable symptoms
1) Not possible to activate the starter motor

Probable cause
1) Power take-off switch

Detailed information
1) Put the power take-off switch in off position and try to start again