Fault Code P0378
Code meaning, symptoms, possible causes, part number, and estimated cost.
P0378
Timing Reference High Resolution Signal 'A' Intermittent/Erratic
This code indicates that the high-resolution reference signal 'A' is intermittent or erratic. This can cause serious problems with engine timing and operation.
Part Details
Part Name
Crankshaft Position Sensor / Camshaft Position Sensor
Reference P/N (OEM)
N/A
General part number for this fault code — not necessarily for your specific vehicle
Estimated Cost
₪300 - ₪1200
Engine Location
Crankshaft/Camshaft
Symptoms
- Intermittent hard starting or no-start condition
- Sudden engine stall
- Unstable engine performance
- Check Engine Light on
Possible Causes
- 1Loose connection or corrosion in the sensor connector
- 2Damaged or exposed wiring
- 3Faulty crankshaft/camshaft position sensor
- 4Electromagnetic interference or electrical noise
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