When a P0893 DTC is present, it means that the ECU has detected that multiple gears are being engaged at the same time. This can be caused by a number of mechanical failures, all of which can seriously impact the drivability of your vehicle.
How Serious is the Code?
A P0893 diagnostic trouble code can be caused by a number of things, including failed shift solenoids or solenoid packs. In more severe cases, the clutch discs may have fused together due to excessive wear. Either way, you may be looking at a very expensive transmission repair bill.
Symptoms of a P0893 include:
- Burnt smell and possibly metallic fragments in transmission fluid
- Erratic transmission behavior
- Harsh and/or delayed shifts
- Internal mechanical failure
- Faulty shift solenoids
- Damaged wiring
- Issue with ECU or programming
How to Diagnose the Code?
One of the first steps to diagnosing a P0893 OBDII trouble code, is to check the transmission fluid for the presence of metallic fragments, which can indicate an mechanical failure. If nothing is found, then the wiring and connectors along the transmission wiring harness should be checked for damage and corrosion. The ECU programming version should also be checked against the manufacturer’s TSB database. Beyond that, in-depth mechanical diagnosis will be needed.
What Repairs Will Fix P0893?
- Replace clutches or other failed mechanical component
- Replace failed shift solenoid(s)
- Repair or replace damaged wiring
- Replace or reprogram the ECU