Toyota Tacoma (2015-2018) Service Manual: Inspection
INSPECTION
PROCEDURE
1. INSPECT WATER INLET WITH THERMOSTAT SUB-ASSEMBLY
HINT:
The valve opening temperature is inscribed on the water inlet with thermostat sub-assembly.
(a) Immerse the thermostat in the water, then heat the water gradually.
CAUTION:
- Do not your hands into the water that has been heated for the inspection.
- Touching the heated water could result in burns.
(b) Check the valve opening temperature of the water inlet with thermostat sub-assembly.
Standard valve opening temperature:
85 to 89°C (185 to 192°F)
NOTICE:
When checking the water inlet with thermostat sub-assembly in water, keep the terminals dry. After the check, wipe the water inlet with thermostat sub-assembly dry.
If the valve opening temperature is not as specified, replace the water inlet with thermostat sub-assembly.
|
(c) Check the valve lift. Text in Illustration
Standard valve lift: 8.0 mm (0.315 in.) or more at 100°C (212°F) If the valve lift is not as specified, replace the water inlet with thermostat sub-assembly. |
|
(d) Check that the valve is fully closed when the water inlet with thermostat sub-assembly is at a low temperature (below 40°C (104°F)).
If the valve is not fully closed, replace the water inlet with thermostat sub-assembly.
(e) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
1 - 2 |
20°C (68°F) |
10.54 to 14.26 Ω |
If the result is not as specified, replace the water inlet with thermostat sub-assembly.
Removal
REMOVAL
PROCEDURE
1. REMOVE NO. 2 ENGINE UNDER COVER SUB-ASSEMBLY (w/ Off Road Package)
2. REMOVE NO. 1 ENGINE UNDER COVER SUB-ASSEMBLY
3. DRAIN ENGINE COOLANT
4. REMOVE V-BANK COVER SUB-ASSEM ...
Installation
INSTALLATION
PROCEDURE
1. INSTALL WATER INLET WITH THERMOSTAT SUB-ASSEMBLY
(a) Install a new gasket to the water inlet with thermostat sub-assembly.
(b) Install the water inlet with thermostat sub ...
Other materials:
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
Proceed to the troubleshooting for each circuit in the table below.
Symptom
Suspected Area
See page
Passenger seat occupant conditions and displayed passenger airbag ON/OFF
indicator do not correspond
Tr ...
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
HINT:
If a trouble code is output during the DTC check, inspect the trouble areas listed
for that code. For details of the code, refer to the "See page" below.
Certification ECU (Smart Key ECU Assembly)
DTC Code
Detection Item
...
Clearance Warning Buzzer Circuit
DESCRIPTION
This circuit consists of the No. 1 clearance warning buzzer and clearance warning
ECU assembly. An ECU-excited type buzzer is used. The battery voltage supplied through
the buzzer is grounded inside the clearance warning ECU assembly using a pulsed
digital pattern, producing sound ...
