FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

P0128

DTC P0128 - THERMOSTAT MALFUNCTION

DTC DETECTING CONDITION:
- Two consecutive driving cycles with fault

TROUBLE SYMPTOM:
- Thermostat remains open.

CAUTION: After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode.

Step 1 - 5: