How Serious Is the Code?
Although the P0897 diagnostic code may not seem that serious, it can actually be triggered by things like a faulty solenoid or transmission pump. Therefore, the cause should be investigated sooner rather than later.
Symptoms
Symptoms of a P0897 include:
- Harsh shifts
- The transmission will not shift gears
- Slipping
- Jerking or shuddering
- Transmission overheating
- Poor acceleration and/or fuel economy
Causes
- Low transmission fluid level
- Dirty fluid/filter
- Faulty solenoid(s)
- Blocked passages inside the transmission
- Faulty pressure regulator
- Defective transmission pump
- TCM programming issue or failure
How to Diagnose the Code?
Obviously, the first thing to do when trying to diagnose an OBDII P0897 trouble code is to check the condition and level of the transmission fluid. If it is dirty, it should be changed immediately, and any transmission fluid leaks should also be repaired. The wiring and connectors along the transmission wiring harness may also need to be checked for signs of short circuits and other damage. If no obvious issues are detected, the transmission pump will need to be tested. An internal inspection of the solenoids and a pressure control system may also be necessary.
What Repairs Will Fix P0897?
- Change the transmission fluid
- Flush the transmission
- Repair or replace damaged wiring/wiring harness
- Repair transmission fluid leaks
- Replace the transmission pump
- Replace the solenoid(s)
- Replace the pressure regulator
- Repair or replace the TCM