LEMON Manuals: Even more car manuals for everyone
Home >> Toyota >> 2001 >> Sienna CE >> Repair and Diagnosis >> External Pages >> Different car >> Section 123 (Engine Control System Self Diagnostics - V8) >> Diagnostic Tests >> DTC P0128: Coolant Thermostat Malfunction >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2003 Toyota Tundra. However, it is still accessible from the selected car via links, so may be relevant.

DTC will set if cold started engine is warmed up and coolant temperature remains less than 167°F (75°C). Possible causes are:

scientia non olet · About LEMON Manuals