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Toyota Corolla Repair Manual: Coolant thermostat (coolant temperature below thermostat regulating temperature)

Toyota Corolla Repair Manual / Diagnostics / Sfi system / Coolant thermostat (coolant temperature below thermostat regulating temperature)

Dtc p0128 coolant thermostat (coolant temperature below thermostat regulating temperature)

Hint

: this is the purpose of the thermostat malfunction detection.

Inspection procedure
Hint: if dtcs p0115, p0116, p0117, p0118 and p0125 are output simultaneously, the engine coolant temperature sensor circuit may be open or short. Perform the troubleshooting of dtc p0115, ...

Circuit description
If the engine coolant temperature (ect) does not reach 75c (167f) despite sufficient warm up time has elapsed. Dtc no Dtc detection condition Trouble area P01 ...

Other materials:

Inspection procedure
1 Check p squib circuit(airbag sensor assy center instrument panel passenger airbag assy) Disconnect the negative () terminal cable from the battery, and wait at least for 90 seconds.  disconnect the connectors between the airbag sensor assy center and the instrument panel pas ...

Brake
Onvehicle inspection 1. Inspect brake line pipes and hoses Hint: work in a welllighted area. Turn the front wheels fully to the right or left before begining.  check all the brake lines and hoses for: damage wear deformation cracks corrosion leaks bends twists ...

Drive shaft / propeller shaft
Preparation Sst Recomended tools Equipment Lubricant ...

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