P0890
TCM Power Relay Sense Circuit Low
P0890 is an OBD-II diagnostic trouble code meaning: TCM Power Relay Sense Circuit Low. Common causes: faulty tcm relay, wiring harness damage. Estimated repair cost: $6–33.
Symptoms
- Gear shifting problems
- Transmission transition to emergency mode
- Check Engine Light Illuminates
- Unstable engine operation at idle
- Loss of engine power
Causes
- Faulty TCM relay
- Wiring harness damage
- Poor contact in connectors
- Blown fuse
- Problems with the TCM module
How to Fix
- Check the condition of the TCM circuit fuse
- Inspect the TCM relay and replace if necessary
- Check the integrity of wiring and connectors
- Test the voltage in the relay circuit
- If necessary, diagnose the TCM
Related codes
Error P0890 by Vehicle Brand
FAQ
What does the P0890 code mean?
P0890 is an OBD-II diagnostic trouble code that indicates: TCM Power Relay Sense Circuit Low
What causes a P0890 error code?
The most common causes of P0890 include: Faulty TCM relay; Wiring harness damage; Poor contact in connectors; Blown fuse.
How do I fix a P0890 diagnostic trouble code?
To fix P0890: Check the condition of the TCM circuit fuse. Inspect the TCM relay and replace if necessary. Check the integrity of wiring and connectors. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0890?
Limited driving only, diagnose soon
How much does it cost to fix P0890?
The estimated repair cost for P0890 is $6–33. Actual cost depends on your vehicle, location, and labor rates.
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