Fault codes › P0898
P0898
Transmission Control System MIL Request Circuit Low
Generic code
Transmission System
High severity
Hard repair
Free on OBD DashX
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iWhat P0898 means
- The fault code P0898 indicates a low voltage condition in the transmission control system's MIL (Malfunction Indicator Lamp) request circuit. This code is often associated with a malfunction or fault within the transmission control module (TCM), causing the MIL to be unresponsive or not illuminating when required.
!Possible symptoms
- Malfunction Indicator Lamp (MIL) not illuminating when it should, or not illuminating at all.
- Inability to retrieve fault codes from the TCM through the MIL.
- Limited or no communication with the TCM through diagnostic tools.
- Other associated transmission
- related fault codes may be present.
- No noticeable drivability issues are typically associated with this fault code.
?Possible causes
- Faulty transmission control module (TCM)
- Wiring or electrical connection issues in the MIL request circuit
- Blown fuse related to the MIL circuit
- Malfunctioning MIL bulb or LED
- Poor ground connection in the circuit
⚙Related parts
- Transmission Control System: Gear system in the car
✓Possible solutions
- Inspect the wiring and electrical connections in the MIL request circuit for any damage, loose connections, or corrosion. Repair or replace as necessary.
- Check the fuses related to the MIL circuit and replace any blown fuses.
- Test and replace the faulty transmission control module (TCM), if necessary.
- Verify the functionality of the MIL bulb or LED. Replace if it is defective.
- Ensure proper grounding in the circuit by checking the ground connection. Clean or repair the ground connection if needed.