US ECM reprogramming / harsh shift (2005-2008 1ZZ automatic)
- Symptoms
- Harsh shift, CEL
- Likely cause
- ECM fault (US recall 10V384 / TSB TC015-07)
- Fix
- Check the VIN for a campaign (US/Gulf). PK applicability unverified.
- Applies to
- US ZZE130 sister; PK ZZE122R unverified
- Related fault codes
- P2716 (US ECU)
- Confidence
- low
Sources
Related problems on this car
- A245E/A246E automatic (PK 1.6 = A246E): harsh/flare 2-3 shift, slips, TCC codes
- ZZ oil consumption (1ZZ-FE/3ZZ-FE, worse on early builds)
- Ignition coil-on-plug failure / misfire
- Intake manifold gasket vacuum leak (1ZZ)
Similar problems on other cars
- P0977 on the 1.3 automatic · Toyota Corolla (11th gen, E170)
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