P0320high severityPowertrain
Ignition/Distributor Engine Speed Input Circuit
on 2007 Mercedes-Benz S65 AMG 6.0L V12 BiTurbo M275 · RWD
What this code means
The PCM detected a fault in the engine speed (RPM) input signal from the ignition or distributor circuit. This can cause stalling or no-start conditions.
Symptoms
- Engine stalling
- Hard starting or no start
- Erratic RPM signal
Common causes
- Faulty crankshaft/RPM sensor
- Wiring open or short
- Poor connector contact
- Faulty ignition module
Diagnostic steps
- Scan for related codes
- Inspect sensor wiring and connector
- Test RPM sensor signal
- Check ignition module operation
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Other Powertrain codes on this vehicle
P0001
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P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0005
Fuel Shutoff Valve A Control Circuit/Open
P0006
Fuel Shutoff Valve A Control Circuit Low
P0007
Fuel Shutoff Valve A Control Circuit High
P0008
Engine Position System Performance - Bank 1
P0009
Engine Position System Performance - Bank 2
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1