P0613

TCM Processor

Q: Is it safe to drive with P0613?

Only cautiously. The transmission may enter limp mode, limiting speed and locking a gear. Driving hard in this state can add wear — get it diagnosed soon.

Q: Can I just clear P0613?

It may clear temporarily, but an internal processor or power-supply fault will bring it back. Fix the grounds/power or module first.

Computer output circuit Generic OBD-II High

What it means

P0613 is an internal self-check failure in the transmission control module's processor. The TCM manages shift timing and pressure, so a processor fault often drops the transmission into limp mode — a single fixed gear with harsh or delayed shifts. The engine still runs, but before assuming the module is bad, its power feeds, grounds, and connectors should be verified, as a weak supply frequently triggers this code.

High

Can I keep driving? Risky — the transmission may drop into limp mode (fixed gear). Drive gently and get it diagnosed promptly.

Real-world scan data

Seen in

scans in the past year

Found in

<0.1%

of scans

<0.1%

of scans that found faults

Figures reflect only diagnostic scans recorded through our own apps and tools. Cars are typically scanned because a symptom or warning light prompted it, so these counts describe our scan records — not the incidence of faults in any model, and not the quality, reliability, or safety of any vehicle. No comparison between manufacturers or models is implied. All trademarks belong to their respective owners; no affiliation or endorsement is implied.

Common symptoms

What you'll notice

Check-engine light on
Harsh, erratic, or delayed shifting
Transmission stuck in one gear (limp mode)
Reduced power or acceleration

Common causes

Most likely first

Poor power supply or ground to the transmission control moduleLikely
Corroded or loose TCM connectors/wiringCommon
Internal TCM processor faultCommon
Damaged ECM affecting shared processing/communicationLess often

How to diagnose & fix

Work through it in order

Scan for companion transmission codes and check TCM communication on the data bus.
Verify the TCM's battery voltage feeds and grounds are clean and tight — a weak supply commonly triggers processor faults.
Inspect the TCM connectors for corrosion, bent pins, or water intrusion.
If power, grounds, and wiring are good, reflash or replace the TCM per manufacturer procedure. Clear and re-test.

FAQ

Quick answers

Is it safe to drive with P0613?+

Only cautiously. The transmission may enter limp mode, limiting speed and locking a gear. Driving hard in this state can add wear — get it diagnosed soon.

Can I just clear P0613?+

It may clear temporarily, but an internal processor or power-supply fault will bring it back. Fix the grounds/power or module first.

Read & clear P0613 yourself

Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.

▶ Get it on Google Play

✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX