Special Service Tool
The actual shape of the tools may differ from those of illustrated here.

Precaution for Work
Basic inspectionHow to erase permanent DTC
Description
OUTLINE
When a DTC is stored in ECM
When a DTC is stored in ECM and MIL is ON, a permanent DTC is erased with MIL
shutoff if the same malfunction
is not detected after performing the driving pattern for MIL shutoff three times
in a raw.
*1: When the same malfunction is detec ...
Engine compartment check locations
MRA8DE engine
Engine oil filler cap
Brake and clutch (if so equipped) fluid
reservoir
Air cleaner
Battery
Fuse/fusible link box
Engine coolant reservoir
Radiator cap
Engine oil dipstick
Drive belt location
Windshield-washer fluid reservoir
...
P0128 Thermostat function
DTC Logic
DTC DETECTION LOGIC
NOTE:
If DTC P0128 is displayed with DTC P0300, P0301, P0302, P0303 or P0304,
first perform the trouble
diagnosis for P0300, P0301, P0302, P0303 or P0304. Refer to EC-269, "DTC Logic".
Engine coolant temperature has not risen enough to open the thermost ...