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) Output A14.EB:29 active2) Short circuit to battery voltage3) This diagnostic trouble code (DTC) is set only when the ignition key is held in the start position for approximately 3?s Observable symptoms1) Starter motor does not run Probable cause1) Wire between Engine Control...

Conditions for diagnostic trouble code (DTC):1) Short circuit to ground on A14.EB:292) Short circuit to ground on A127.A:51 Observable symptoms1) Starter motor does not become activated2) Engine does not start Probable cause1) Wire between Engine Control Module (ECM) and starter motor relay2) Starter motor relay (K65) Volvo All Engines (2010 Emissions) Fault Code: SPN 677 FMI 3 PID: SID 39 Engine Starter Motor Relay Volvo All Engines (2010 Emissions) Fault Code: SPN 656 FMI 7 PID: SID 6 Engine Injector Cylinder 6 Volvo All Engines (2010 Emissions) Fault Code: SPN 656 FMI 12 PID: SID 6 Engine Injector Cylinder 6...

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. Observable symptoms1) Starter motor does not run Probable cause1) Starter motor relay (K65)2) Wire between Engine Control Module (ECM) and starter motor relay3) Supply wire between the S15 connector and the K65 connector4) Engine control module (ECM) Volvo All Engines (2010 Emissions) Fault Code: SPN 677 FMI 4...

The preheat function is used to warm up the inlet air during cold conditions both before and after cranking to make the starting easier and better for the environment at very low temperatures. This diagnostic trouble code (DTC) detects a faulty preheat function. Conditions for diagnostic trouble code (DTC):1) The voltage at pin A14.EB:7 is more than 91?% battery voltage Diagnostic operating conditions1) Ignition key in ON position Observable symptoms1) Intake air heater (IAH) relay may be constantly activated2) High intake air temperature (IAT)3) High current consumption4) Power loss5) Low battery voltage Probable cause1) Connector2) Wiring harness3) Intake air heater...

The preheat function is used to warm up the inlet air during cold conditions both before and after cranking to make the starting easier and better for the environment at very low temperatures. This diagnostic trouble code (DTC) detects a faulty preheat function. Conditions for diagnostic trouble code (DTC):1) Preheating requested2) The voltage at pin A14.EB:7 is less than 29?% of the battery voltage Observable symptoms1) Intake air heater (IAH) does not function2) White smoke at cold start3) Difficult to start in extreme cold Probable cause1) Wiring harness2) Connector3) Intake air heater (IAH) relay Volvo All Engines (2010 Emissions) Fault...