INSPECTION
PROCEDURE
1. INSPECT THERMOSTAT
HINT:
The valve opening temperature is inscribed on the thermostat.
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(a) Immerse the thermostat in water, and then gradually heat the water. |
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(b) Check that the valve of the thermostat opens at the specified temperature.
Standard valve opening temperature:
80 to 84°C (176 to 183°F)
If the valve does not open as specified, replace the thermostat.
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(c) Check the valve lift. Standard valve lift: 10 mm (0.394 in.) or more at 95°C (203°F) If the valve lift is not as specified, replace the thermostat. |
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(d) Check that the valve is fully closed when the thermostat is at a low temperature (below 77°C (171°F)).
If the valve is not fully closed, replace the thermostat.
Removal
InstallationTerminals Of Ecu
TERMINALS OF ECU
1. CHECK MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY)
(a) Disconnect the main body ECU (driver side junction block assembly) connectors.
(b) Measure the resistance and voltage according to the value(s) in the table
below.
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Vehicle Speed Signal Error (Test Mode DTC) (C2191/91)
DESCRIPTION
The tire pressure warning ECU receives a vehicle speed signal from the combination
meter. This DTC is stored upon entering signal check mode (test mode), and cleared
when a vehicle speed signal of 20 km/h (12 mph) is detected for 3 seconds or ...
Detecting Vehicle Submersion (B2277)
DESCRIPTION
This DTC is stored when the submersion circuit monitor inside the power management
control ECU detects a large amount of water.
DTC No.
DTC Detection Condition
Trouble Area
B2277
The ...