P0654

Q: What does OBD2 code P0654 mean?

P0654 means: Engine RPM Output Circuit Malfunction. The circuit that sends engine RPM signal output to the instrument cluster or other modules has a fault.

Engine RPM Output Circuit Malfunction

The circuit that sends engine RPM signal output to the instrument cluster or other modules has a fault.

SeverityMinor

CategoryElectrical

Est. Repair Cost$100-$250

Code TypePowertrain

DIY RepairYes

⚡ Common Causes

›Damaged wiring
›Faulty ECM output driver
›Corroded connector

⚠️ Symptoms

›Check engine light
›Tachometer may not work correctly
›Other modules relying on RPM signal may malfunction

✅ How to Fix — Step by Step

Step 1:Inspect wiring to instrument cluster
Step 2:Test ECM RPM output signal
Step 3:Repair wiring as needed

💡 Pro Tip: If your tachometer needle is stuck or erratic alongside this code, the wiring between the ECM and cluster is the most likely culprit.

Repair Cost Estimate

Full Repair Estimate

$100-$250

DIY Possible?

YES

Severity

Minor

Frequently Asked Questions

What does OBD2 code P0654 mean?+

P0654 stands for Engine RPM Output Circuit Malfunction. The circuit that sends engine RPM signal output to the instrument cluster or other modules has a fault.

What causes code P0654?+

Damaged wiring; Faulty ECM output driver; Corroded connector

How do I fix code P0654?+

Inspect wiring to instrument cluster; Test ECM RPM output signal; Repair wiring as needed

How much does it cost to fix P0654?+

Estimated repair cost for P0654 is $100-$250.

Is P0654 DIY-friendly?+

Yes — P0654 is generally DIY-friendly with basic tools.