Toyota Corolla (E120): Circuit description
If the engine coolant temperature (ect) does not reach 75°c (167°f) despite sufficient warm – up time has elapsed.
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Dtc no |
Dtc detection condition |
Trouble area |
| P0128 | Condition (a), (b) and (c):
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Monitor description
The ecm estimates the engine coolant temperature (ect) based on starting temperature, engine loads, and engine speeds. The ecm then compares the estimated ect with the actual ect. When the estimated ect reaches 75 c (167 f) the ecm checks the actual ect. If the actual ect is less than 75 c (167 f), the ecm will interpret this as a fault in the thermostat or engine cooling system or thermostat and set a dtc.
Monitor strategy
Typical enabling conditions
Typical malfunction thresholds
Component operating range
Monitor result (mode 06 data)
Refer to page 05–27 for the detailed information on checking monitor status.
Other materials:
Hood
Opening the hood
1. Pull the hood lock release
lever.
The hood will pop up slightly.
2. Pull the auxiliary catch lever
to the left and lift the hood.
3. Hold the hood open by inserting
the support rod into the
slot.
WARNING
■Pre-driving check
Check that the hood is fully closed
and locked.
If ...
Circuit description
Monitor description
The ecm commands gearshift by turning the shift solenoid valves ”on/off”.
When there is an open or short
circuit in any shift solenoid valve circuit, the ecm detects the problem and the
mil comes on. Illuminating
the mil, the ecm performs the fail–safe and turns ...
Using the voice command system (Multimedia system)
Voice command system
The voice command system enables the hands-free system to be operated using
voice commands.
Operations of the voice command system can be performed by selecting the menu
corresponding to each function on the screen. Even if any menu is selected, commands
displayed on all ...