P0048moderate severityPowertrain
Turbo/Supercharger Boost Control Solenoid Circuit High
on 1997 BMW 318ti E36 1.9L I4 M44 · RWD
What this code means
High voltage detected in the boost control solenoid circuit.
Symptoms
- Check Engine Light
- Overboosting
- Reduced power
Common causes
- Short to power
- Faulty solenoid
- PCM issue
Diagnostic steps
- Test circuit voltage
- Check for shorts to power
- Test solenoid
Repair notes
Repair short or replace solenoid.
Other Powertrain codes on this vehicle
P0001
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P0002
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P0003
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P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0011
Intake Camshaft Position Timing Over-Advanced Bank 1
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Intake Camshaft Position Timing Over-Retarded Bank 1
P0013
Exhaust Camshaft Position Actuator Circuit/Open Bank 1
P0014
Exhaust Camshaft Position Timing Over-Advanced Bank 1
P0015
Exhaust Camshaft Position Timing Over-Retarded Bank 1