Timing Reference High Resolution Signal ‘A’ Malfunction
Table of contents
P0370 MINI Possible Causes
- Timing Reference Optical Sensor harness is open or shorted
- Timing Reference Optical Sensor circuit poor electrical connection
- Faulty Timing Reference Optical Sensor
- Damaged Powertrain Control Module (PCM)
How do I fix code P0370 MINI?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Cost of diagnosing the P0370 MINI code
The cost of diagnosing the P0370 MINI code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
When is the code detected
A number of high resolution pulses missing per every 8 cam reference pulses.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P0370 MINI Description
The optical sensor provides a high resolution signal to the Powertrain Control Module (PCM) by counting pulses on the sensor disk located in the injection pump. The high resolution is one of the most important inputs by the PCM for fuel control and timing. This test monitors the number of high resolution pulses which have been missed (not detected). It’s based on a comparison between the number of pulses that were detected since the last pump cam pulse and the number of the pulses that should have occurred. There are approximately 64 high resolution pulses for every cam pulse.