This error code indicates that the transmission oil pressure is too low. This can be caused by a number of factors, including:
- A low oil level
- A faulty oil pump
- A blocked oil filter
- A damaged oil pressure sensor
- A leak in the hydraulic system
To troubleshoot this error code, you should first check the oil level and condition. If the oil is low, add oil until the level is full. If the oil is dirty or contaminated, it should be replaced.
If the oil level and condition are good, you should next check the oil filter. A clogged oil filter can restrict oil flow and cause the oil pressure to drop. If the oil filter is dirty, it should be replaced.
If the oil filter is clean, you should next check the oil pump. A faulty oil pump can fail to generate sufficient oil pressure. To test the oil pump, you should use a pressure gauge to measure the oil pressure at the oil pump outlet. If the oil pressure is low, the oil pump should be replaced.
If the oil pump is working properly, you should next check the oil pressure sensor. A faulty oil pressure sensor can send an incorrect signal to the engine control module (ECM), which can cause the ECM to activate the F34 error code. To test the oil pressure sensor, you should use a multimeter to measure the voltage at the oil pressure sensor. If the voltage is incorrect, the oil pressure sensor should be replaced.
If the oil pressure sensor is working properly, you should next check the hydraulic system for leaks. A leak in the hydraulic system can cause the oil pressure to drop. To find a leak, you should inspect the hydraulic hoses and connections for cracks or leaks. If you find a leak, it should be repaired.
