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) Transmission is not in neutral position
2) Gear selector not in neutral
3) Only for automatic transmission
Observable symptoms
1) Not possible to activate the starter motor
Probable cause
1) Transmission
2) Gear selector
Detailed information
1) Put the gear selector in neutral position and try to start again
2) When the vehicle is equipped with manual transmission the parameter code BZN in ECM should be set to 0
Related products
-
CAT 3406E (Prefix 1MM or 2WS) Fault Code: 32 PID: SPN: 91 FMI: 8 Throttle Signal Invalid
3406E (Prefix 1MM or 2WS) -
CAT 3406E (Prefix 1MM or 2WS) Fault Code: 27 PID: SPN: 110 FMI: 3 Coolant Temperature voltage high
3406E (Prefix 1MM or 2WS) -
Volvo All Engines (2017 Emissions) Fault Code: P20B912 PID: ACM Reductant Heater “A” Control
All Engines (2017 Emissions)